[api] Use shared static string for reboot timeout scheduler name

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

.github/PULL_REQUEST_TEMPLATE.md

@@ -7,6 +7,7 @@
 - [ ] Bugfix (non-breaking change which fixes an issue)
 - [ ] New feature (non-breaking change which adds functionality)
 - [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
+- [ ] Developer breaking change (an API change that could break external components)
 - [ ] Code quality improvements to existing code or addition of tests
 - [ ] Other
 

.github/workflows/auto-label-pr.yml

@@ -68,6 +68,7 @@ jobs:
               'bugfix',
               'new-feature',
               'breaking-change',
+              'developer-breaking-change',
               'code-quality'
             ];
 
@@ -367,6 +368,7 @@ jobs:
                 { pattern: /- \[x\] Bugfix \(non-breaking change which fixes an issue\)/i, label: 'bugfix' },
                 { pattern: /- \[x\] New feature \(non-breaking change which adds functionality\)/i, label: 'new-feature' },
                 { pattern: /- \[x\] Breaking change \(fix or feature that would cause existing functionality to not work as expected\)/i, label: 'breaking-change' },
+                { pattern: /- \[x\] Developer breaking change \(an API change that could break external components\)/i, label: 'developer-breaking-change' },
                 { pattern: /- \[x\] Code quality improvements to existing code or addition of tests/i, label: 'code-quality' }
               ];
 

esphome/components/alpha3/alpha3.cpp

@@ -56,13 +56,13 @@ bool Alpha3::is_current_response_type_(const uint8_t *response_type) {
 
 void Alpha3::handle_geni_response_(const uint8_t *response, uint16_t length) {
   if (this->response_offset_ >= this->response_length_) {
-    ESP_LOGD(TAG, "[%s] GENI response begin", this->parent_->address_str().c_str());
+    ESP_LOGD(TAG, "[%s] GENI response begin", this->parent_->address_str());
     if (length < GENI_RESPONSE_HEADER_LENGTH) {
-      ESP_LOGW(TAG, "[%s] response to short", this->parent_->address_str().c_str());
+      ESP_LOGW(TAG, "[%s] response too short", this->parent_->address_str());
       return;
     }
     if (response[0] != 36 || response[2] != 248 || response[3] != 231 || response[4] != 10) {
-      ESP_LOGW(TAG, "[%s] response bytes %d %d %d %d %d don't match GENI HEADER", this->parent_->address_str().c_str(),
+      ESP_LOGW(TAG, "[%s] response bytes %d %d %d %d %d don't match GENI HEADER", this->parent_->address_str(),
                response[0], response[1], response[2], response[3], response[4]);
       return;
     }
@@ -77,11 +77,11 @@ void Alpha3::handle_geni_response_(const uint8_t *response, uint16_t length) {
   };
 
   if (this->is_current_response_type_(GENI_RESPONSE_TYPE_FLOW_HEAD)) {
-    ESP_LOGD(TAG, "[%s] FLOW HEAD Response", this->parent_->address_str().c_str());
+    ESP_LOGD(TAG, "[%s] FLOW HEAD Response", this->parent_->address_str());
     extract_publish_sensor_value(GENI_RESPONSE_FLOW_OFFSET, this->flow_sensor_, 3600.0F);
     extract_publish_sensor_value(GENI_RESPONSE_HEAD_OFFSET, this->head_sensor_, .0001F);
   } else if (this->is_current_response_type_(GENI_RESPONSE_TYPE_POWER)) {
-    ESP_LOGD(TAG, "[%s] POWER Response", this->parent_->address_str().c_str());
+    ESP_LOGD(TAG, "[%s] POWER Response", this->parent_->address_str());
     extract_publish_sensor_value(GENI_RESPONSE_POWER_OFFSET, this->power_sensor_, 1.0F);
     extract_publish_sensor_value(GENI_RESPONSE_CURRENT_OFFSET, this->current_sensor_, 1.0F);
     extract_publish_sensor_value(GENI_RESPONSE_MOTOR_SPEED_OFFSET, this->speed_sensor_, 1.0F);
@@ -100,7 +100,7 @@ void Alpha3::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc
       if (param->open.status == ESP_GATT_OK) {
         this->response_offset_ = 0;
         this->response_length_ = 0;
-        ESP_LOGI(TAG, "[%s] connection open", this->parent_->address_str().c_str());
+        ESP_LOGI(TAG, "[%s] connection open", this->parent_->address_str());
       }
       break;
     }
@@ -132,7 +132,7 @@ void Alpha3::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc
     case ESP_GATTC_SEARCH_CMPL_EVT: {
       auto *chr = this->parent_->get_characteristic(ALPHA3_GENI_SERVICE_UUID, ALPHA3_GENI_CHARACTERISTIC_UUID);
       if (chr == nullptr) {
-        ESP_LOGE(TAG, "[%s] No GENI service found at device, not an Alpha3..?", this->parent_->address_str().c_str());
+        ESP_LOGE(TAG, "[%s] No GENI service found at device, not an Alpha3..?", this->parent_->address_str());
         break;
       }
       auto status = esp_ble_gattc_register_for_notify(this->parent_->get_gattc_if(), this->parent_->get_remote_bda(),
@@ -164,12 +164,12 @@ void Alpha3::send_request_(uint8_t *request, size_t len) {
       esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->geni_handle_, len,
                                request, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
   if (status)
-    ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+    ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
 }
 
 void Alpha3::update() {
   if (this->node_state != espbt::ClientState::ESTABLISHED) {
-    ESP_LOGW(TAG, "[%s] Cannot poll, not connected", this->parent_->address_str().c_str());
+    ESP_LOGW(TAG, "[%s] Cannot poll, not connected", this->parent_->address_str());
     return;
   }
 

esphome/components/am43/sensor/am43_sensor.cpp

@@ -44,11 +44,9 @@ void Am43::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_i
       auto *chr = this->parent_->get_characteristic(AM43_SERVICE_UUID, AM43_CHARACTERISTIC_UUID);
       if (chr == nullptr) {
         if (this->parent_->get_characteristic(AM43_TUYA_SERVICE_UUID, AM43_TUYA_CHARACTERISTIC_UUID) != nullptr) {
-          ESP_LOGE(TAG, "[%s] Detected a Tuya AM43 which is not supported, sorry.",
-                   this->parent_->address_str().c_str());
+          ESP_LOGE(TAG, "[%s] Detected a Tuya AM43 which is not supported, sorry.", this->parent_->address_str());
         } else {
-          ESP_LOGE(TAG, "[%s] No control service found at device, not an AM43..?",
-                   this->parent_->address_str().c_str());
+          ESP_LOGE(TAG, "[%s] No control service found at device, not an AM43..?", this->parent_->address_str());
         }
         break;
       }
@@ -82,8 +80,7 @@ void Am43::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_i
                                                  this->char_handle_, packet->length, packet->data,
                                                  ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
           if (status) {
-            ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(),
-                     status);
+            ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
           }
         }
         this->current_sensor_ = 0;
@@ -97,7 +94,7 @@ void Am43::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_i
 
 void Am43::update() {
   if (this->node_state != espbt::ClientState::ESTABLISHED) {
-    ESP_LOGW(TAG, "[%s] Cannot poll, not connected", this->parent_->address_str().c_str());
+    ESP_LOGW(TAG, "[%s] Cannot poll, not connected", this->parent_->address_str());
     return;
   }
   if (this->current_sensor_ == 0) {
@@ -107,7 +104,7 @@ void Am43::update() {
           esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                    packet->length, packet->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
       if (status) {
-        ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+        ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
       }
     }
     this->current_sensor_++;

esphome/components/anova/anova.cpp

@@ -42,7 +42,7 @@ void Anova::control(const ClimateCall &call) {
         esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                  pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
     if (status) {
-      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
     }
   }
   if (call.get_target_temperature().has_value()) {
@@ -51,7 +51,7 @@ void Anova::control(const ClimateCall &call) {
         esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                  pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
     if (status) {
-      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
     }
   }
 }
@@ -124,8 +124,7 @@ void Anova::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_
               esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                        pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
           if (status) {
-            ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(),
-                     status);
+            ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
           }
         }
       }
@@ -150,7 +149,7 @@ void Anova::update() {
         esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_,
                                  pkt->length, pkt->data, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
     if (status) {
-      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+      ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
     }
     this->current_request_++;
   }

esphome/components/api/api_connection.cpp

@@ -169,8 +169,7 @@ void APIConnection::loop() {
       } else {
         this->last_traffic_ = now;
         // read a packet
-        this->read_message(buffer.data_len, buffer.type,
-                           buffer.data_len > 0 ? &buffer.container[buffer.data_offset] : nullptr);
+        this->read_message(buffer.data_len, buffer.type, buffer.data);
         if (this->flags_.remove)
           return;
       }
@@ -195,6 +194,9 @@ void APIConnection::loop() {
       }
       // Now that everything is sent, enable immediate sending for future state changes
       this->flags_.should_try_send_immediately = true;
+      // Release excess memory from buffers that grew during initial sync
+      this->deferred_batch_.release_buffer();
+      this->helper_->release_buffers();
     }
   }
 

esphome/components/api/api_connection.h

@@ -554,10 +554,8 @@ class APIConnection final : public APIServerConnection {
     std::vector<BatchItem> items;
     uint32_t batch_start_time{0};
 
-    DeferredBatch() {
-      // Pre-allocate capacity for typical batch sizes to avoid reallocation
-      items.reserve(8);
-    }
+    // No pre-allocation - log connections never use batching, and for
+    // connections that do, buffers are released after initial sync anyway
 
     // Add item to the batch
     void add_item(EntityBase *entity, MessageCreator creator, uint8_t message_type, uint8_t estimated_size);
@@ -576,6 +574,15 @@ class APIConnection final : public APIServerConnection {
     bool empty() const { return items.empty(); }
     size_t size() const { return items.size(); }
     const BatchItem &operator[](size_t index) const { return items[index]; }
+    // Release excess capacity - only releases if items already empty
+    void release_buffer() {
+      // Safe to call: batch is processed before release_buffer is called,
+      // and if any items remain (partial processing), we must not clear them.
+      // Use swap trick since shrink_to_fit() is non-binding and may be ignored.
+      if (items.empty()) {
+        std::vector<BatchItem>().swap(items);
+      }
+    }
   };
 
   // DeferredBatch here (16 bytes, 4-byte aligned)

esphome/components/api/api_frame_helper.h

@@ -35,10 +35,9 @@ struct ClientInfo;
 class ProtoWriteBuffer;
 
 struct ReadPacketBuffer {
-  std::vector<uint8_t> container;
-  uint16_t type;
-  uint16_t data_offset;
+  const uint8_t *data;  // Points directly into frame helper's rx_buf_ (valid until next read_packet call)
   uint16_t data_len;
+  uint16_t type;
 };
 
 // Packed packet info structure to minimize memory usage
@@ -119,6 +118,22 @@ class APIFrameHelper {
   uint8_t frame_footer_size() const { return frame_footer_size_; }
   // Check if socket has data ready to read
   bool is_socket_ready() const { return socket_ != nullptr && socket_->ready(); }
+  // Release excess memory from internal buffers after initial sync
+  void release_buffers() {
+    // rx_buf_: Safe to clear only if no partial read in progress.
+    // rx_buf_len_ tracks bytes read so far; if non-zero, we're mid-frame
+    // and clearing would lose partially received data.
+    if (this->rx_buf_len_ == 0) {
+      // Use swap trick since shrink_to_fit() is non-binding and may be ignored
+      std::vector<uint8_t>().swap(this->rx_buf_);
+    }
+    // reusable_iovs_: Safe to release unconditionally.
+    // Only used within write_protobuf_packets() calls - cleared at start,
+    // populated with pointers, used for writev(), then function returns.
+    // The iovecs contain stale pointers after the call (data was either sent
+    // or copied to tx_buf_), and are cleared on next write_protobuf_packets().
+    std::vector<struct iovec>().swap(this->reusable_iovs_);
+  }
 
  protected:
   // Buffer containing data to be sent

esphome/components/api/api_frame_helper_noise.cpp

@@ -407,8 +407,7 @@ APIError APINoiseFrameHelper::read_packet(ReadPacketBuffer *buffer) {
     return APIError::BAD_DATA_PACKET;
   }
 
-  buffer->container = std::move(this->rx_buf_);
-  buffer->data_offset = 4;
+  buffer->data = msg_data + 4;  // Skip 4-byte header (type + length)
   buffer->data_len = data_len;
   buffer->type = type;
   return APIError::OK;

esphome/components/api/api_frame_helper_plaintext.cpp

@@ -210,8 +210,7 @@ APIError APIPlaintextFrameHelper::read_packet(ReadPacketBuffer *buffer) {
     return aerr;
   }
 
-  buffer->container = std::move(this->rx_buf_);
-  buffer->data_offset = 0;
+  buffer->data = this->rx_buf_.data();
   buffer->data_len = this->rx_header_parsed_len_;
   buffer->type = this->rx_header_parsed_type_;
   return APIError::OK;

esphome/components/api/api_pb2_service.cpp

@@ -13,7 +13,7 @@ void APIServerConnectionBase::log_send_message_(const char *name, const std::str
 }
 #endif
 
-void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) {
+void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) {
   switch (msg_type) {
     case HelloRequest::MESSAGE_TYPE: {
       HelloRequest msg;
@@ -827,7 +827,7 @@ void APIServerConnection::on_z_wave_proxy_frame(const ZWaveProxyFrame &msg) { th
 void APIServerConnection::on_z_wave_proxy_request(const ZWaveProxyRequest &msg) { this->zwave_proxy_request(msg); }
 #endif
 
-void APIServerConnection::read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) {
+void APIServerConnection::read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) {
   // Check authentication/connection requirements for messages
   switch (msg_type) {
     case HelloRequest::MESSAGE_TYPE:  // No setup required

esphome/components/api/api_pb2_service.h

@@ -218,7 +218,7 @@ class APIServerConnectionBase : public ProtoService {
   virtual void on_z_wave_proxy_request(const ZWaveProxyRequest &value){};
 #endif
  protected:
-  void read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) override;
+  void read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) override;
 };
 
 class APIServerConnection : public APIServerConnectionBase {
@@ -480,7 +480,7 @@ class APIServerConnection : public APIServerConnectionBase {
 #ifdef USE_ZWAVE_PROXY
   void on_z_wave_proxy_request(const ZWaveProxyRequest &msg) override;
 #endif
-  void read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) override;
+  void read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) override;
 };
 
 }  // namespace esphome::api

esphome/components/api/api_server.cpp

@@ -101,19 +101,7 @@ void APIServer::setup() {
 
 #ifdef USE_LOGGER
   if (logger::global_logger != nullptr) {
-    logger::global_logger->add_on_log_callback(
-        [this](int level, const char *tag, const char *message, size_t message_len) {
-          if (this->shutting_down_) {
-            // Don't try to send logs during shutdown
-            // as it could result in a recursion and
-            // we would be filling a buffer we are trying to clear
-            return;
-          }
-          for (auto &c : this->clients_) {
-            if (!c->flags_.remove && c->get_log_subscription_level() >= level)
-              c->try_send_log_message(level, tag, message, message_len);
-          }
-        });
+    logger::global_logger->add_log_listener(this);
   }
 #endif
 
@@ -129,9 +117,11 @@ void APIServer::setup() {
 #endif
 }
 
+static const char *const REBOOT_TIMEOUT = "reboot";
+
 void APIServer::schedule_reboot_timeout_() {
   this->status_set_warning();
-  this->set_timeout("api_reboot", this->reboot_timeout_, []() {
+  this->set_timeout(REBOOT_TIMEOUT, this->reboot_timeout_, []() {
     if (!global_api_server->is_connected()) {
       ESP_LOGE(TAG, "No clients; rebooting");
       App.reboot();
@@ -167,7 +157,7 @@ void APIServer::loop() {
       // Clear warning status and cancel reboot when first client connects
       if (this->clients_.size() == 1 && this->reboot_timeout_ != 0) {
         this->status_clear_warning();
-        this->cancel_timeout("api_reboot");
+        this->cancel_timeout(REBOOT_TIMEOUT);
       }
     }
   }
@@ -541,6 +531,21 @@ bool APIServer::is_connected(bool state_subscription_only) const {
   return false;
 }
 
+#ifdef USE_LOGGER
+void APIServer::on_log(uint8_t level, const char *tag, const char *message, size_t message_len) {
+  if (this->shutting_down_) {
+    // Don't try to send logs during shutdown
+    // as it could result in a recursion and
+    // we would be filling a buffer we are trying to clear
+    return;
+  }
+  for (auto &c : this->clients_) {
+    if (!c->flags_.remove && c->get_log_subscription_level() >= level)
+      c->try_send_log_message(level, tag, message, message_len);
+  }
+}
+#endif
+
 void APIServer::on_shutdown() {
   this->shutting_down_ = true;
 

esphome/components/api/api_server.h

@@ -15,6 +15,9 @@
 #ifdef USE_API_USER_DEFINED_ACTIONS
 #include "user_services.h"
 #endif
+#ifdef USE_LOGGER
+#include "esphome/components/logger/logger.h"
+#endif
 
 #include <map>
 #include <vector>
@@ -27,7 +30,13 @@ struct SavedNoisePsk {
 } PACKED;  // NOLINT
 #endif
 
-class APIServer : public Component, public Controller {
+class APIServer : public Component,
+                  public Controller
+#ifdef USE_LOGGER
+    ,
+                  public logger::LogListener
+#endif
+{
  public:
   APIServer();
   void setup() override;
@@ -37,6 +46,9 @@ class APIServer : public Component, public Controller {
   void dump_config() override;
   void on_shutdown() override;
   bool teardown() override;
+#ifdef USE_LOGGER
+  void on_log(uint8_t level, const char *tag, const char *message, size_t message_len) override;
+#endif
 #ifdef USE_API_PASSWORD
   bool check_password(const uint8_t *password_data, size_t password_len) const;
   void set_password(const std::string &password);

esphome/components/api/proto.h

@@ -846,7 +846,7 @@ class ProtoService {
    */
   virtual ProtoWriteBuffer create_buffer(uint32_t reserve_size) = 0;
   virtual bool send_buffer(ProtoWriteBuffer buffer, uint8_t message_type) = 0;
-  virtual void read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) = 0;
+  virtual void read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) = 0;
 
   // Optimized method that pre-allocates buffer based on message size
   bool send_message_(const ProtoMessage &msg, uint8_t message_type) {

esphome/components/api/user_services.h

@@ -51,13 +51,14 @@ template<typename... Ts> class UserServiceBase : public UserServiceDescriptor {
       return false;
     if (req.args.size() != sizeof...(Ts))
       return false;
-    this->execute_(req.args, typename gens<sizeof...(Ts)>::type());
+    this->execute_(req.args, std::make_index_sequence<sizeof...(Ts)>{});
     return true;
   }
 
  protected:
   virtual void execute(Ts... x) = 0;
-  template<typename ArgsContainer, int... S> void execute_(const ArgsContainer &args, seq<S...> type) {
+  template<typename ArgsContainer, size_t... S>
+  void execute_(const ArgsContainer &args, std::index_sequence<S...> type) {
     this->execute((get_execute_arg_value<Ts>(args[S]))...);
   }
 
@@ -95,13 +96,14 @@ template<typename... Ts> class UserServiceDynamic : public UserServiceDescriptor
       return false;
     if (req.args.size() != sizeof...(Ts))
       return false;
-    this->execute_(req.args, typename gens<sizeof...(Ts)>::type());
+    this->execute_(req.args, std::make_index_sequence<sizeof...(Ts)>{});
     return true;
   }
 
  protected:
   virtual void execute(Ts... x) = 0;
-  template<typename ArgsContainer, int... S> void execute_(const ArgsContainer &args, seq<S...> type) {
+  template<typename ArgsContainer, size_t... S>
+  void execute_(const ArgsContainer &args, std::index_sequence<S...> type) {
     this->execute((get_execute_arg_value<Ts>(args[S]))...);
   }
 

esphome/components/ble_client/automation.h

@@ -198,7 +198,7 @@ template<typename... Ts> class BLEClientWriteAction : public Action<Ts...>, publ
         }
         this->node_state = espbt::ClientState::ESTABLISHED;
         esph_log_d(Automation::TAG, "Found characteristic %s on device %s", this->char_uuid_.to_string().c_str(),
-                   ble_client_->address_str().c_str());
+                   ble_client_->address_str());
         break;
       }
       default:

esphome/components/ble_client/ble_client.cpp

@@ -39,7 +39,7 @@ void BLEClient::set_enabled(bool enabled) {
     return;
   this->enabled = enabled;
   if (!enabled) {
-    ESP_LOGI(TAG, "[%s] Disabling BLE client.", this->address_str().c_str());
+    ESP_LOGI(TAG, "[%s] Disabling BLE client.", this->address_str());
     this->disconnect();
   }
 }

esphome/components/ble_client/output/ble_binary_output.cpp

@@ -14,7 +14,7 @@ void BLEBinaryOutput::dump_config() {
                 "  MAC address        : %s\n"
                 "  Service UUID       : %s\n"
                 "  Characteristic UUID: %s",
-                this->parent_->address_str().c_str(), this->service_uuid_.to_string().c_str(),
+                this->parent_->address_str(), this->service_uuid_.to_string().c_str(),
                 this->char_uuid_.to_string().c_str());
   LOG_BINARY_OUTPUT(this);
 }
@@ -44,7 +44,7 @@ void BLEBinaryOutput::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_i
       }
       this->node_state = espbt::ClientState::ESTABLISHED;
       ESP_LOGD(TAG, "Found characteristic %s on device %s", this->char_uuid_.to_string().c_str(),
-               this->parent()->address_str().c_str());
+               this->parent()->address_str());
       this->node_state = espbt::ClientState::ESTABLISHED;
       break;
     }

esphome/components/ble_client/sensor/ble_rssi_sensor.cpp

@@ -19,7 +19,7 @@ void BLEClientRSSISensor::loop() {
 
 void BLEClientRSSISensor::dump_config() {
   LOG_SENSOR("", "BLE Client RSSI Sensor", this);
-  ESP_LOGCONFIG(TAG, "  MAC address        : %s", this->parent()->address_str().c_str());
+  ESP_LOGCONFIG(TAG, "  MAC address        : %s", this->parent()->address_str());
   LOG_UPDATE_INTERVAL(this);
 }
 
@@ -69,10 +69,10 @@ void BLEClientRSSISensor::update() {
   this->get_rssi_();
 }
 void BLEClientRSSISensor::get_rssi_() {
-  ESP_LOGV(TAG, "requesting rssi from %s", this->parent()->address_str().c_str());
+  ESP_LOGV(TAG, "requesting rssi from %s", this->parent()->address_str());
   auto status = esp_ble_gap_read_rssi(this->parent()->get_remote_bda());
   if (status != ESP_OK) {
-    ESP_LOGW(TAG, "esp_ble_gap_read_rssi error, address=%s, status=%d", this->parent()->address_str().c_str(), status);
+    ESP_LOGW(TAG, "esp_ble_gap_read_rssi error, address=%s, status=%d", this->parent()->address_str(), status);
     this->status_set_warning();
     this->publish_state(NAN);
   }

esphome/components/ble_client/sensor/ble_sensor.cpp

@@ -25,7 +25,7 @@ void BLESensor::dump_config() {
                 "  Characteristic UUID: %s\n"
                 "  Descriptor UUID    : %s\n"
                 "  Notifications      : %s",
-                this->parent()->address_str().c_str(), this->service_uuid_.to_string().c_str(),
+                this->parent()->address_str(), this->service_uuid_.to_string().c_str(),
                 this->char_uuid_.to_string().c_str(), this->descr_uuid_.to_string().c_str(), YESNO(this->notify_));
   LOG_UPDATE_INTERVAL(this);
 }

esphome/components/ble_client/text_sensor/ble_text_sensor.cpp

@@ -28,7 +28,7 @@ void BLETextSensor::dump_config() {
                 "  Characteristic UUID: %s\n"
                 "  Descriptor UUID    : %s\n"
                 "  Notifications      : %s",
-                this->parent()->address_str().c_str(), this->service_uuid_.to_string().c_str(),
+                this->parent()->address_str(), this->service_uuid_.to_string().c_str(),
                 this->char_uuid_.to_string().c_str(), this->descr_uuid_.to_string().c_str(), YESNO(this->notify_));
   LOG_UPDATE_INTERVAL(this);
 }

esphome/components/ble_nus/ble_nus.cpp

@@ -87,17 +87,21 @@ void BLENUS::setup() {
   global_ble_nus = this;
 #ifdef USE_LOGGER
   if (logger::global_logger != nullptr && this->expose_log_) {
-    logger::global_logger->add_on_log_callback(
-        [this](int level, const char *tag, const char *message, size_t message_len) {
-          this->write_array(reinterpret_cast<const uint8_t *>(message), message_len);
-          const char c = '\n';
-          this->write_array(reinterpret_cast<const uint8_t *>(&c), 1);
-        });
+    logger::global_logger->add_log_listener(this);
   }
-
 #endif
 }
 
+#ifdef USE_LOGGER
+void BLENUS::on_log(uint8_t level, const char *tag, const char *message, size_t message_len) {
+  (void) level;
+  (void) tag;
+  this->write_array(reinterpret_cast<const uint8_t *>(message), message_len);
+  const char c = '\n';
+  this->write_array(reinterpret_cast<const uint8_t *>(&c), 1);
+}
+#endif
+
 void BLENUS::dump_config() {
   ESP_LOGCONFIG(TAG, "ble nus:");
   ESP_LOGCONFIG(TAG, "  log: %s", YESNO(this->expose_log_));

esphome/components/ble_nus/ble_nus.h

@@ -2,12 +2,20 @@
 #ifdef USE_ZEPHYR
 #include "esphome/core/defines.h"
 #include "esphome/core/component.h"
+#ifdef USE_LOGGER
+#include "esphome/components/logger/logger.h"
+#endif
 #include <shell/shell_bt_nus.h>
 #include <atomic>
 
 namespace esphome::ble_nus {
 
-class BLENUS : public Component {
+class BLENUS : public Component
+#ifdef USE_LOGGER
+    ,
+               public logger::LogListener
+#endif
+{
   enum TxStatus {
     TX_DISABLED,
     TX_ENABLED,
@@ -20,6 +28,9 @@ class BLENUS : public Component {
   void loop() override;
   size_t write_array(const uint8_t *data, size_t len);
   void set_expose_log(bool expose_log) { this->expose_log_ = expose_log; }
+#ifdef USE_LOGGER
+  void on_log(uint8_t level, const char *tag, const char *message, size_t message_len) override;
+#endif
 
  protected:
   static void send_enabled_callback(bt_nus_send_status status);

esphome/components/bluetooth_proxy/bluetooth_connection.cpp

@@ -196,8 +196,8 @@ void BluetoothConnection::send_service_for_discovery_() {
 
     if (service_status != ESP_GATT_OK || service_count == 0) {
       ESP_LOGE(TAG, "[%d] [%s] esp_ble_gattc_get_service %s, status=%d, service_count=%d, offset=%d",
-               this->connection_index_, this->address_str().c_str(),
-               service_status != ESP_GATT_OK ? "error" : "missing", service_status, service_count, this->send_service_);
+               this->connection_index_, this->address_str(), service_status != ESP_GATT_OK ? "error" : "missing",
+               service_status, service_count, this->send_service_);
       this->send_service_ = DONE_SENDING_SERVICES;
       return;
     }
@@ -312,13 +312,13 @@ void BluetoothConnection::send_service_for_discovery_() {
       if (resp.services.size() > 1) {
         resp.services.pop_back();
         ESP_LOGD(TAG, "[%d] [%s] Service %d would exceed limit (current: %d + service: %d > %d), sending current batch",
-                 this->connection_index_, this->address_str().c_str(), this->send_service_, current_size, service_size,
+                 this->connection_index_, this->address_str(), this->send_service_, current_size, service_size,
                  MAX_PACKET_SIZE);
         // Don't increment send_service_ - we'll retry this service in next batch
       } else {
         // This single service is too large, but we have to send it anyway
         ESP_LOGV(TAG, "[%d] [%s] Service %d is too large (%d bytes) but sending anyway", this->connection_index_,
-                 this->address_str().c_str(), this->send_service_, service_size);
+                 this->address_str(), this->send_service_, service_size);
         // Increment so we don't get stuck
         this->send_service_++;
       }
@@ -337,21 +337,20 @@ void BluetoothConnection::send_service_for_discovery_() {
 }
 
 void BluetoothConnection::log_connection_error_(const char *operation, esp_gatt_status_t status) {
-  ESP_LOGE(TAG, "[%d] [%s] %s error, status=%d", this->connection_index_, this->address_str().c_str(), operation,
-           status);
+  ESP_LOGE(TAG, "[%d] [%s] %s error, status=%d", this->connection_index_, this->address_str(), operation, status);
 }
 
 void BluetoothConnection::log_connection_warning_(const char *operation, esp_err_t err) {
-  ESP_LOGW(TAG, "[%d] [%s] %s failed, err=%d", this->connection_index_, this->address_str().c_str(), operation, err);
+  ESP_LOGW(TAG, "[%d] [%s] %s failed, err=%d", this->connection_index_, this->address_str(), operation, err);
 }
 
 void BluetoothConnection::log_gatt_not_connected_(const char *action, const char *type) {
-  ESP_LOGW(TAG, "[%d] [%s] Cannot %s GATT %s, not connected.", this->connection_index_, this->address_str().c_str(),
-           action, type);
+  ESP_LOGW(TAG, "[%d] [%s] Cannot %s GATT %s, not connected.", this->connection_index_, this->address_str(), action,
+           type);
 }
 
 void BluetoothConnection::log_gatt_operation_error_(const char *operation, uint16_t handle, esp_gatt_status_t status) {
-  ESP_LOGW(TAG, "[%d] [%s] Error %s for handle 0x%2X, status=%d", this->connection_index_, this->address_str().c_str(),
+  ESP_LOGW(TAG, "[%d] [%s] Error %s for handle 0x%2X, status=%d", this->connection_index_, this->address_str(),
            operation, handle, status);
 }
 
@@ -372,14 +371,14 @@ bool BluetoothConnection::gattc_event_handler(esp_gattc_cb_event_t event, esp_ga
     case ESP_GATTC_DISCONNECT_EVT: {
       // Don't reset connection yet - wait for CLOSE_EVT to ensure controller has freed resources
       // This prevents race condition where we mark slot as free before controller cleanup is complete
-      ESP_LOGD(TAG, "[%d] [%s] Disconnect, reason=0x%02x", this->connection_index_, this->address_str_.c_str(),
+      ESP_LOGD(TAG, "[%d] [%s] Disconnect, reason=0x%02x", this->connection_index_, this->address_str_,
                param->disconnect.reason);
       // Send disconnection notification but don't free the slot yet
       this->proxy_->send_device_connection(this->address_, false, 0, param->disconnect.reason);
       break;
     }
     case ESP_GATTC_CLOSE_EVT: {
-      ESP_LOGD(TAG, "[%d] [%s] Close, reason=0x%02x, freeing slot", this->connection_index_, this->address_str_.c_str(),
+      ESP_LOGD(TAG, "[%d] [%s] Close, reason=0x%02x, freeing slot", this->connection_index_, this->address_str_,
                param->close.reason);
       // Now the GATT connection is fully closed and controller resources are freed
       // Safe to mark the connection slot as available
@@ -463,7 +462,7 @@ bool BluetoothConnection::gattc_event_handler(esp_gattc_cb_event_t event, esp_ga
       break;
     }
     case ESP_GATTC_NOTIFY_EVT: {
-      ESP_LOGV(TAG, "[%d] [%s] ESP_GATTC_NOTIFY_EVT: handle=0x%2X", this->connection_index_, this->address_str_.c_str(),
+      ESP_LOGV(TAG, "[%d] [%s] ESP_GATTC_NOTIFY_EVT: handle=0x%2X", this->connection_index_, this->address_str_,
                param->notify.handle);
       api::BluetoothGATTNotifyDataResponse resp;
       resp.address = this->address_;
@@ -502,8 +501,7 @@ esp_err_t BluetoothConnection::read_characteristic(uint16_t handle) {
     return ESP_GATT_NOT_CONNECTED;
   }
 
-  ESP_LOGV(TAG, "[%d] [%s] Reading GATT characteristic handle %d", this->connection_index_, this->address_str_.c_str(),
-           handle);
+  ESP_LOGV(TAG, "[%d] [%s] Reading GATT characteristic handle %d", this->connection_index_, this->address_str_, handle);
 
   esp_err_t err = esp_ble_gattc_read_char(this->gattc_if_, this->conn_id_, handle, ESP_GATT_AUTH_REQ_NONE);
   return this->check_and_log_error_("esp_ble_gattc_read_char", err);
@@ -515,8 +513,7 @@ esp_err_t BluetoothConnection::write_characteristic(uint16_t handle, const uint8
     this->log_gatt_not_connected_("write", "characteristic");
     return ESP_GATT_NOT_CONNECTED;
   }
-  ESP_LOGV(TAG, "[%d] [%s] Writing GATT characteristic handle %d", this->connection_index_, this->address_str_.c_str(),
-           handle);
+  ESP_LOGV(TAG, "[%d] [%s] Writing GATT characteristic handle %d", this->connection_index_, this->address_str_, handle);
 
   // ESP-IDF's API requires a non-const uint8_t* but it doesn't modify the data
   // The BTC layer immediately copies the data to its own buffer (see btc_gattc.c)
@@ -532,8 +529,7 @@ esp_err_t BluetoothConnection::read_descriptor(uint16_t handle) {
     this->log_gatt_not_connected_("read", "descriptor");
     return ESP_GATT_NOT_CONNECTED;
   }
-  ESP_LOGV(TAG, "[%d] [%s] Reading GATT descriptor handle %d", this->connection_index_, this->address_str_.c_str(),
-           handle);
+  ESP_LOGV(TAG, "[%d] [%s] Reading GATT descriptor handle %d", this->connection_index_, this->address_str_, handle);
 
   esp_err_t err = esp_ble_gattc_read_char_descr(this->gattc_if_, this->conn_id_, handle, ESP_GATT_AUTH_REQ_NONE);
   return this->check_and_log_error_("esp_ble_gattc_read_char_descr", err);
@@ -544,8 +540,7 @@ esp_err_t BluetoothConnection::write_descriptor(uint16_t handle, const uint8_t *
     this->log_gatt_not_connected_("write", "descriptor");
     return ESP_GATT_NOT_CONNECTED;
   }
-  ESP_LOGV(TAG, "[%d] [%s] Writing GATT descriptor handle %d", this->connection_index_, this->address_str_.c_str(),
-           handle);
+  ESP_LOGV(TAG, "[%d] [%s] Writing GATT descriptor handle %d", this->connection_index_, this->address_str_, handle);
 
   // ESP-IDF's API requires a non-const uint8_t* but it doesn't modify the data
   // The BTC layer immediately copies the data to its own buffer (see btc_gattc.c)
@@ -564,13 +559,13 @@ esp_err_t BluetoothConnection::notify_characteristic(uint16_t handle, bool enabl
 
   if (enable) {
     ESP_LOGV(TAG, "[%d] [%s] Registering for GATT characteristic notifications handle %d", this->connection_index_,
-             this->address_str_.c_str(), handle);
+             this->address_str_, handle);
     esp_err_t err = esp_ble_gattc_register_for_notify(this->gattc_if_, this->remote_bda_, handle);
     return this->check_and_log_error_("esp_ble_gattc_register_for_notify", err);
   }
 
   ESP_LOGV(TAG, "[%d] [%s] Unregistering for GATT characteristic notifications handle %d", this->connection_index_,
-           this->address_str_.c_str(), handle);
+           this->address_str_, handle);
   esp_err_t err = esp_ble_gattc_unregister_for_notify(this->gattc_if_, this->remote_bda_, handle);
   return this->check_and_log_error_("esp_ble_gattc_unregister_for_notify", err);
 }

esphome/components/bluetooth_proxy/bluetooth_proxy.cpp

@@ -27,11 +27,13 @@ void BluetoothProxy::setup() {
   // Capture the configured scan mode from YAML before any API changes
   this->configured_scan_active_ = this->parent_->get_scan_active();
 
-  this->parent_->add_scanner_state_callback([this](esp32_ble_tracker::ScannerState state) {
-    if (this->api_connection_ != nullptr) {
-      this->send_bluetooth_scanner_state_(state);
-    }
-  });
+  this->parent_->add_scanner_state_listener(this);
+}
+
+void BluetoothProxy::on_scanner_state(esp32_ble_tracker::ScannerState state) {
+  if (this->api_connection_ != nullptr) {
+    this->send_bluetooth_scanner_state_(state);
+  }
 }
 
 void BluetoothProxy::send_bluetooth_scanner_state_(esp32_ble_tracker::ScannerState state) {
@@ -47,12 +49,11 @@ void BluetoothProxy::send_bluetooth_scanner_state_(esp32_ble_tracker::ScannerSta
 
 void BluetoothProxy::log_connection_request_ignored_(BluetoothConnection *connection, espbt::ClientState state) {
   ESP_LOGW(TAG, "[%d] [%s] Connection request ignored, state: %s", connection->get_connection_index(),
-           connection->address_str().c_str(), espbt::client_state_to_string(state));
+           connection->address_str(), espbt::client_state_to_string(state));
 }
 
 void BluetoothProxy::log_connection_info_(BluetoothConnection *connection, const char *message) {
-  ESP_LOGI(TAG, "[%d] [%s] Connecting %s", connection->get_connection_index(), connection->address_str().c_str(),
-           message);
+  ESP_LOGI(TAG, "[%d] [%s] Connecting %s", connection->get_connection_index(), connection->address_str(), message);
 }
 
 void BluetoothProxy::log_not_connected_gatt_(const char *action, const char *type) {
@@ -186,7 +187,7 @@ void BluetoothProxy::bluetooth_device_request(const api::BluetoothDeviceRequest
       }
       if (!msg.has_address_type) {
         ESP_LOGE(TAG, "[%d] [%s] Missing address type in connect request", connection->get_connection_index(),
-                 connection->address_str().c_str());
+                 connection->address_str());
         this->send_device_connection(msg.address, false);
         return;
       }
@@ -199,7 +200,7 @@ void BluetoothProxy::bluetooth_device_request(const api::BluetoothDeviceRequest
       } else if (connection->state() == espbt::ClientState::CONNECTING) {
         if (connection->disconnect_pending()) {
           ESP_LOGW(TAG, "[%d] [%s] Connection request while pending disconnect, cancelling pending disconnect",
-                   connection->get_connection_index(), connection->address_str().c_str());
+                   connection->get_connection_index(), connection->address_str());
           connection->cancel_pending_disconnect();
           return;
         }
@@ -339,7 +340,7 @@ void BluetoothProxy::bluetooth_gatt_send_services(const api::BluetoothGATTGetSer
     return;
   }
   if (!connection->service_count_) {
-    ESP_LOGW(TAG, "[%d] [%s] No GATT services found", connection->connection_index_, connection->address_str().c_str());
+    ESP_LOGW(TAG, "[%d] [%s] No GATT services found", connection->connection_index_, connection->address_str());
     this->send_gatt_services_done(msg.address);
     return;
   }

esphome/components/bluetooth_proxy/bluetooth_proxy.h

@@ -52,7 +52,9 @@ enum BluetoothProxySubscriptionFlag : uint32_t {
   SUBSCRIPTION_RAW_ADVERTISEMENTS = 1 << 0,
 };
 
-class BluetoothProxy final : public esp32_ble_tracker::ESPBTDeviceListener, public Component {
+class BluetoothProxy final : public esp32_ble_tracker::ESPBTDeviceListener,
+                             public esp32_ble_tracker::BLEScannerStateListener,
+                             public Component {
   friend class BluetoothConnection;  // Allow connection to update connections_free_response_
  public:
   BluetoothProxy();
@@ -108,6 +110,9 @@ class BluetoothProxy final : public esp32_ble_tracker::ESPBTDeviceListener, publ
   void set_active(bool active) { this->active_ = active; }
   bool has_active() { return this->active_; }
 
+  /// BLEScannerStateListener interface
+  void on_scanner_state(esp32_ble_tracker::ScannerState state) override;
+
   uint32_t get_legacy_version() const {
     if (this->active_) {
       return LEGACY_ACTIVE_CONNECTIONS_VERSION;

esphome/components/display/display.cpp

@@ -7,7 +7,6 @@
 
 namespace esphome {
 namespace display {
-
 static const char *const TAG = "display";
 
 const Color COLOR_OFF(0, 0, 0, 0);
@@ -16,6 +15,7 @@ const Color COLOR_ON(255, 255, 255, 255);
 void Display::fill(Color color) { this->filled_rectangle(0, 0, this->get_width(), this->get_height(), color); }
 void Display::clear() { this->fill(COLOR_OFF); }
 void Display::set_rotation(DisplayRotation rotation) { this->rotation_ = rotation; }
+
 void HOT Display::line(int x1, int y1, int x2, int y2, Color color) {
   const int32_t dx = abs(x2 - x1), sx = x1 < x2 ? 1 : -1;
   const int32_t dy = -abs(y2 - y1), sy = y1 < y2 ? 1 : -1;
@@ -91,23 +91,27 @@ void HOT Display::horizontal_line(int x, int y, int width, Color color) {
   for (int i = x; i < x + width; i++)
     this->draw_pixel_at(i, y, color);
 }
+
 void HOT Display::vertical_line(int x, int y, int height, Color color) {
   // Future: Could be made more efficient by manipulating buffer directly in certain rotations.
   for (int i = y; i < y + height; i++)
     this->draw_pixel_at(x, i, color);
 }
+
 void Display::rectangle(int x1, int y1, int width, int height, Color color) {
   this->horizontal_line(x1, y1, width, color);
   this->horizontal_line(x1, y1 + height - 1, width, color);
   this->vertical_line(x1, y1, height, color);
   this->vertical_line(x1 + width - 1, y1, height, color);
 }
+
 void Display::filled_rectangle(int x1, int y1, int width, int height, Color color) {
   // Future: Use vertical_line and horizontal_line methods depending on rotation to reduce memory accesses.
   for (int i = y1; i < y1 + height; i++) {
     this->horizontal_line(x1, i, width, color);
   }
 }
+
 void HOT Display::circle(int center_x, int center_xy, int radius, Color color) {
   int dx = -radius;
   int dy = 0;
@@ -131,6 +135,7 @@ void HOT Display::circle(int center_x, int center_xy, int radius, Color color) {
     }
   } while (dx <= 0);
 }
+
 void Display::filled_circle(int center_x, int center_y, int radius, Color color) {
   int dx = -int32_t(radius);
   int dy = 0;
@@ -157,6 +162,7 @@ void Display::filled_circle(int center_x, int center_y, int radius, Color color)
     }
   } while (dx <= 0);
 }
+
 void Display::filled_ring(int center_x, int center_y, int radius1, int radius2, Color color) {
   int rmax = radius1 > radius2 ? radius1 : radius2;
   int rmin = radius1 < radius2 ? radius1 : radius2;
@@ -213,6 +219,7 @@ void Display::filled_ring(int center_x, int center_y, int radius1, int radius2,
     }
   } while (dxmax <= 0);
 }
+
 void Display::filled_gauge(int center_x, int center_y, int radius1, int radius2, int progress, Color color) {
   int rmax = radius1 > radius2 ? radius1 : radius2;
   int rmin = radius1 < radius2 ? radius1 : radius2;
@@ -228,7 +235,8 @@ void Display::filled_gauge(int center_x, int center_y, int radius1, int radius2,
     // outer dots
     this->draw_pixel_at(center_x + dxmax, center_y - dymax, color);
     this->draw_pixel_at(center_x - dxmax, center_y - dymax, color);
-    if (dymin < rmin) {  // side parts
+    if (dymin < rmin) {
+      // side parts
       int lhline_width = -(dxmax - dxmin) + 1;
       if (progress >= 50) {
         if (float(dymax) < float(-dxmax) * tan_a) {
@@ -239,7 +247,8 @@ void Display::filled_gauge(int center_x, int center_y, int radius1, int radius2,
         this->horizontal_line(center_x + dxmax, center_y - dymax, lhline_width, color);  // left
         if (!dymax)
           this->horizontal_line(center_x - dxmin, center_y, lhline_width, color);  // right horizontal border
-        if (upd_dxmax > -dxmin) {                                                  // right
+        if (upd_dxmax > -dxmin) {
+          // right
           int rhline_width = (upd_dxmax + dxmin) + 1;
           this->horizontal_line(center_x - dxmin, center_y - dymax,
                                 rhline_width > lhline_width ? lhline_width : rhline_width, color);
@@ -256,7 +265,8 @@ void Display::filled_gauge(int center_x, int center_y, int radius1, int radius2,
         if (lhline_width > 0)
           this->horizontal_line(center_x + dxmax, center_y - dymax, lhline_width, color);
       }
-    } else {  // top part
+    } else {
+      // top part
       int hline_width = 2 * (-dxmax) + 1;
       if (progress >= 50) {
         if (dymax < float(-dxmax) * tan_a) {
@@ -300,11 +310,13 @@ void Display::filled_gauge(int center_x, int center_y, int radius1, int radius2,
     }
   } while (dxmax <= 0);
 }
+
 void HOT Display::triangle(int x1, int y1, int x2, int y2, int x3, int y3, Color color) {
   this->line(x1, y1, x2, y2, color);
   this->line(x1, y1, x3, y3, color);
   this->line(x2, y2, x3, y3, color);
 }
+
 void Display::sort_triangle_points_by_y_(int *x1, int *y1, int *x2, int *y2, int *x3, int *y3) {
   if (*y1 > *y2) {
     int x_temp = *x1, y_temp = *y1;
@@ -322,6 +334,7 @@ void Display::sort_triangle_points_by_y_(int *x1, int *y1, int *x2, int *y2, int
     *x3 = x_temp, *y3 = y_temp;
   }
 }
+
 void Display::filled_flat_side_triangle_(int x1, int y1, int x2, int y2, int x3, int y3, Color color) {
   // y2 must be equal to y3 (same horizontal line)
 
@@ -333,7 +346,8 @@ void Display::filled_flat_side_triangle_(int x1, int y1, int x2, int y2, int x3,
   int s1_dy = abs(y2 - y1);
   int s1_sign_x = ((x2 - x1) >= 0) ? 1 : -1;
   int s1_sign_y = ((y2 - y1) >= 0) ? 1 : -1;
-  if (s1_dy > s1_dx) {  // swap values
+  if (s1_dy > s1_dx) {
+    // swap values
     int tmp = s1_dx;
     s1_dx = s1_dy;
     s1_dy = tmp;
@@ -349,7 +363,8 @@ void Display::filled_flat_side_triangle_(int x1, int y1, int x2, int y2, int x3,
   int s2_dy = abs(y3 - y1);
   int s2_sign_x = ((x3 - x1) >= 0) ? 1 : -1;
   int s2_sign_y = ((y3 - y1) >= 0) ? 1 : -1;
-  if (s2_dy > s2_dx) {  // swap values
+  if (s2_dy > s2_dx) {
+    // swap values
     int tmp = s2_dx;
     s2_dx = s2_dy;
     s2_dy = tmp;
@@ -402,20 +417,25 @@ void Display::filled_flat_side_triangle_(int x1, int y1, int x2, int y2, int x3,
     }
   }
 }
+
 void Display::filled_triangle(int x1, int y1, int x2, int y2, int x3, int y3, Color color) {
   // Sort the three points by y-coordinate ascending, so [x1,y1] is the topmost point
   this->sort_triangle_points_by_y_(&x1, &y1, &x2, &y2, &x3, &y3);
 
-  if (y2 == y3) {  // Check for special case of a bottom-flat triangle
+  if (y2 == y3) {
+    // Check for special case of a bottom-flat triangle
     this->filled_flat_side_triangle_(x1, y1, x2, y2, x3, y3, color);
-  } else if (y1 == y2) {  // Check for special case of a top-flat triangle
+  } else if (y1 == y2) {
+    // Check for special case of a top-flat triangle
     this->filled_flat_side_triangle_(x3, y3, x1, y1, x2, y2, color);
-  } else {  // General case: split the no-flat-side triangle in a top-flat triangle and bottom-flat triangle
+  } else {
+    // General case: split the no-flat-side triangle in a top-flat triangle and bottom-flat triangle
     int x_temp = (int) (x1 + ((float) (y2 - y1) / (float) (y3 - y1)) * (x3 - x1)), y_temp = y2;
     this->filled_flat_side_triangle_(x1, y1, x2, y2, x_temp, y_temp, color);
     this->filled_flat_side_triangle_(x3, y3, x2, y2, x_temp, y_temp, color);
   }
 }
+
 void HOT Display::get_regular_polygon_vertex(int vertex_id, int *vertex_x, int *vertex_y, int center_x, int center_y,
                                              int radius, int edges, RegularPolygonVariation variation,
                                              float rotation_degrees) {
@@ -447,7 +467,8 @@ void HOT Display::regular_polygon(int x, int y, int radius, int edges, RegularPo
       int current_vertex_x, current_vertex_y;
       get_regular_polygon_vertex(current_vertex_id, &current_vertex_x, &current_vertex_y, x, y, radius, edges,
                                  variation, rotation_degrees);
-      if (current_vertex_id > 0) {  // Start drawing after the 2nd vertex coordinates has been calculated
+      if (current_vertex_id > 0) {
+        // Start drawing after the 2nd vertex coordinates has been calculated
         if (drawing == DRAWING_FILLED) {
           this->filled_triangle(x, y, previous_vertex_x, previous_vertex_y, current_vertex_x, current_vertex_y, color);
         } else if (drawing == DRAWING_OUTLINE) {
@@ -459,21 +480,26 @@ void HOT Display::regular_polygon(int x, int y, int radius, int edges, RegularPo
     }
   }
 }
+
 void HOT Display::regular_polygon(int x, int y, int radius, int edges, RegularPolygonVariation variation, Color color,
                                   RegularPolygonDrawing drawing) {
   regular_polygon(x, y, radius, edges, variation, ROTATION_0_DEGREES, color, drawing);
 }
+
 void HOT Display::regular_polygon(int x, int y, int radius, int edges, Color color, RegularPolygonDrawing drawing) {
   regular_polygon(x, y, radius, edges, VARIATION_POINTY_TOP, ROTATION_0_DEGREES, color, drawing);
 }
+
 void Display::filled_regular_polygon(int x, int y, int radius, int edges, RegularPolygonVariation variation,
                                      float rotation_degrees, Color color) {
   regular_polygon(x, y, radius, edges, variation, rotation_degrees, color, DRAWING_FILLED);
 }
+
 void Display::filled_regular_polygon(int x, int y, int radius, int edges, RegularPolygonVariation variation,
                                      Color color) {
   regular_polygon(x, y, radius, edges, variation, ROTATION_0_DEGREES, color, DRAWING_FILLED);
 }
+
 void Display::filled_regular_polygon(int x, int y, int radius, int edges, Color color) {
   regular_polygon(x, y, radius, edges, VARIATION_POINTY_TOP, ROTATION_0_DEGREES, color, DRAWING_FILLED);
 }
@@ -584,15 +610,19 @@ void Display::get_text_bounds(int x, int y, const char *text, BaseFont *font, Te
       break;
   }
 }
+
 void Display::print(int x, int y, BaseFont *font, Color color, const char *text, Color background) {
   this->print(x, y, font, color, TextAlign::TOP_LEFT, text, background);
 }
+
 void Display::print(int x, int y, BaseFont *font, TextAlign align, const char *text) {
   this->print(x, y, font, COLOR_ON, align, text);
 }
+
 void Display::print(int x, int y, BaseFont *font, const char *text) {
   this->print(x, y, font, COLOR_ON, TextAlign::TOP_LEFT, text);
 }
+
 void Display::printf(int x, int y, BaseFont *font, Color color, Color background, TextAlign align, const char *format,
                      ...) {
   va_list arg;
@@ -600,31 +630,37 @@ void Display::printf(int x, int y, BaseFont *font, Color color, Color background
   this->vprintf_(x, y, font, color, background, align, format, arg);
   va_end(arg);
 }
+
 void Display::printf(int x, int y, BaseFont *font, Color color, TextAlign align, const char *format, ...) {
   va_list arg;
   va_start(arg, format);
   this->vprintf_(x, y, font, color, COLOR_OFF, align, format, arg);
   va_end(arg);
 }
+
 void Display::printf(int x, int y, BaseFont *font, Color color, const char *format, ...) {
   va_list arg;
   va_start(arg, format);
   this->vprintf_(x, y, font, color, COLOR_OFF, TextAlign::TOP_LEFT, format, arg);
   va_end(arg);
 }
+
 void Display::printf(int x, int y, BaseFont *font, TextAlign align, const char *format, ...) {
   va_list arg;
   va_start(arg, format);
   this->vprintf_(x, y, font, COLOR_ON, COLOR_OFF, align, format, arg);
   va_end(arg);
 }
+
 void Display::printf(int x, int y, BaseFont *font, const char *format, ...) {
   va_list arg;
   va_start(arg, format);
   this->vprintf_(x, y, font, COLOR_ON, COLOR_OFF, TextAlign::TOP_LEFT, format, arg);
   va_end(arg);
 }
+
 void Display::set_writer(display_writer_t &&writer) { this->writer_ = writer; }
+
 void Display::set_pages(std::vector<DisplayPage *> pages) {
   for (auto *page : pages)
     page->set_parent(this);
@@ -637,6 +673,7 @@ void Display::set_pages(std::vector<DisplayPage *> pages) {
   pages[pages.size() - 1]->set_next(pages[0]);
   this->show_page(pages[0]);
 }
+
 void Display::show_page(DisplayPage *page) {
   this->previous_page_ = this->page_;
   this->page_ = page;
@@ -645,8 +682,10 @@ void Display::show_page(DisplayPage *page) {
       t->process(this->previous_page_, this->page_);
   }
 }
+
 void Display::show_next_page() { this->page_->show_next(); }
 void Display::show_prev_page() { this->page_->show_prev(); }
+
 void Display::do_update_() {
   if (this->auto_clear_enabled_) {
     this->clear();
@@ -660,10 +699,12 @@ void Display::do_update_() {
   }
   this->clear_clipping_();
 }
+
 void DisplayOnPageChangeTrigger::process(DisplayPage *from, DisplayPage *to) {
   if ((this->from_ == nullptr || this->from_ == from) && (this->to_ == nullptr || this->to_ == to))
     this->trigger(from, to);
 }
+
 void Display::strftime(int x, int y, BaseFont *font, Color color, Color background, TextAlign align, const char *format,
                        ESPTime time) {
   char buffer[64];
@@ -671,15 +712,19 @@ void Display::strftime(int x, int y, BaseFont *font, Color color, Color backgrou
   if (ret > 0)
     this->print(x, y, font, color, align, buffer, background);
 }
+
 void Display::strftime(int x, int y, BaseFont *font, Color color, TextAlign align, const char *format, ESPTime time) {
   this->strftime(x, y, font, color, COLOR_OFF, align, format, time);
 }
+
 void Display::strftime(int x, int y, BaseFont *font, Color color, const char *format, ESPTime time) {
   this->strftime(x, y, font, color, COLOR_OFF, TextAlign::TOP_LEFT, format, time);
 }
+
 void Display::strftime(int x, int y, BaseFont *font, TextAlign align, const char *format, ESPTime time) {
   this->strftime(x, y, font, COLOR_ON, COLOR_OFF, align, format, time);
 }
+
 void Display::strftime(int x, int y, BaseFont *font, const char *format, ESPTime time) {
   this->strftime(x, y, font, COLOR_ON, COLOR_OFF, TextAlign::TOP_LEFT, format, time);
 }
@@ -691,6 +736,7 @@ void Display::start_clipping(Rect rect) {
   }
   this->clipping_rectangle_.push_back(rect);
 }
+
 void Display::end_clipping() {
   if (this->clipping_rectangle_.empty()) {
     ESP_LOGE(TAG, "clear: Clipping is not set.");
@@ -698,6 +744,7 @@ void Display::end_clipping() {
     this->clipping_rectangle_.pop_back();
   }
 }
+
 void Display::extend_clipping(Rect add_rect) {
   if (this->clipping_rectangle_.empty()) {
     ESP_LOGE(TAG, "add: Clipping is not set.");
@@ -705,6 +752,7 @@ void Display::extend_clipping(Rect add_rect) {
     this->clipping_rectangle_.back().extend(add_rect);
   }
 }
+
 void Display::shrink_clipping(Rect add_rect) {
   if (this->clipping_rectangle_.empty()) {
     ESP_LOGE(TAG, "add: Clipping is not set.");
@@ -712,6 +760,7 @@ void Display::shrink_clipping(Rect add_rect) {
     this->clipping_rectangle_.back().shrink(add_rect);
   }
 }
+
 Rect Display::get_clipping() const {
   if (this->clipping_rectangle_.empty()) {
     return Rect();
@@ -719,7 +768,9 @@ Rect Display::get_clipping() const {
     return this->clipping_rectangle_.back();
   }
 }
+
 void Display::clear_clipping_() { this->clipping_rectangle_.clear(); }
+
 bool Display::clip(int x, int y) {
   if (x < 0 || x >= this->get_width() || y < 0 || y >= this->get_height())
     return false;
@@ -727,6 +778,7 @@ bool Display::clip(int x, int y) {
     return false;
   return true;
 }
+
 bool Display::clamp_x_(int x, int w, int &min_x, int &max_x) {
   min_x = std::max(x, 0);
   max_x = std::min(x + w, this->get_width());
@@ -742,6 +794,7 @@ bool Display::clamp_x_(int x, int w, int &min_x, int &max_x) {
 
   return min_x < max_x;
 }
+
 bool Display::clamp_y_(int y, int h, int &min_y, int &max_y) {
   min_y = std::max(y, 0);
   max_y = std::min(y + h, this->get_height());
@@ -766,15 +819,15 @@ void Display::test_card() {
   int w = get_width(), h = get_height(), image_w, image_h;
   this->clear();
   this->show_test_card_ = false;
+  image_w = std::min(w - 20, 310);
+  image_h = std::min(h - 20, 255);
+  int shift_x = (w - image_w) / 2;
+  int shift_y = (h - image_h) / 2;
+  int line_w = (image_w - 6) / 6;
+  int image_c = image_w / 2;
   if (this->get_display_type() == DISPLAY_TYPE_COLOR) {
     Color r(255, 0, 0), g(0, 255, 0), b(0, 0, 255);
-    image_w = std::min(w - 20, 310);
-    image_h = std::min(h - 20, 255);
 
-    int shift_x = (w - image_w) / 2;
-    int shift_y = (h - image_h) / 2;
-    int line_w = (image_w - 6) / 6;
-    int image_c = image_w / 2;
     for (auto i = 0; i != image_h; i++) {
       int c = esp_scale(i, image_h);
       this->horizontal_line(shift_x + 0, shift_y + i, line_w, r.fade_to_white(c));
@@ -786,26 +839,26 @@ void Display::test_card() {
       this->horizontal_line(shift_x + image_w - (line_w * 2), shift_y + i, line_w, b.fade_to_white(c));
       this->horizontal_line(shift_x + image_w - line_w, shift_y + i, line_w, b.fade_to_black(c));
     }
-    this->rectangle(shift_x, shift_y, image_w, image_h, Color(127, 127, 0));
+  }
+  this->rectangle(shift_x, shift_y, image_w, image_h, Color(127, 127, 0));
 
-    uint16_t shift_r = shift_x + line_w - (8 * 3);
-    uint16_t shift_g = shift_x + image_c - (8 * 3);
-    uint16_t shift_b = shift_x + image_w - line_w - (8 * 3);
-    shift_y = h / 2 - (8 * 3);
-    for (auto i = 0; i < 8; i++) {
-      uint8_t ftr = progmem_read_byte(&TESTCARD_FONT[0][i]);
-      uint8_t ftg = progmem_read_byte(&TESTCARD_FONT[1][i]);
-      uint8_t ftb = progmem_read_byte(&TESTCARD_FONT[2][i]);
-      for (auto k = 0; k < 8; k++) {
-        if ((ftr & (1 << k)) != 0) {
-          this->filled_rectangle(shift_r + (i * 6), shift_y + (k * 6), 6, 6, COLOR_OFF);
-        }
-        if ((ftg & (1 << k)) != 0) {
-          this->filled_rectangle(shift_g + (i * 6), shift_y + (k * 6), 6, 6, COLOR_OFF);
-        }
-        if ((ftb & (1 << k)) != 0) {
-          this->filled_rectangle(shift_b + (i * 6), shift_y + (k * 6), 6, 6, COLOR_OFF);
-        }
+  uint16_t shift_r = shift_x + line_w - (8 * 3);
+  uint16_t shift_g = shift_x + image_c - (8 * 3);
+  uint16_t shift_b = shift_x + image_w - line_w - (8 * 3);
+  shift_y = h / 2 - (8 * 3);
+  for (auto i = 0; i < 8; i++) {
+    uint8_t ftr = progmem_read_byte(&TESTCARD_FONT[0][i]);
+    uint8_t ftg = progmem_read_byte(&TESTCARD_FONT[1][i]);
+    uint8_t ftb = progmem_read_byte(&TESTCARD_FONT[2][i]);
+    for (auto k = 0; k < 8; k++) {
+      if ((ftr & (1 << k)) != 0) {
+        this->filled_rectangle(shift_r + (i * 6), shift_y + (k * 6), 6, 6, COLOR_OFF);
+      }
+      if ((ftg & (1 << k)) != 0) {
+        this->filled_rectangle(shift_g + (i * 6), shift_y + (k * 6), 6, 6, COLOR_OFF);
+      }
+      if ((ftb & (1 << k)) != 0) {
+        this->filled_rectangle(shift_b + (i * 6), shift_y + (k * 6), 6, 6, COLOR_OFF);
       }
     }
   }
@@ -818,7 +871,9 @@ void Display::test_card() {
 }
 
 DisplayPage::DisplayPage(display_writer_t writer) : writer_(std::move(writer)) {}
+
 void DisplayPage::show() { this->parent_->show_page(this); }
+
 void DisplayPage::show_next() {
   if (this->next_ == nullptr) {
     ESP_LOGE(TAG, "no next page");
@@ -826,6 +881,7 @@ void DisplayPage::show_next() {
   }
   this->next_->show();
 }
+
 void DisplayPage::show_prev() {
   if (this->prev_ == nullptr) {
     ESP_LOGE(TAG, "no previous page");
@@ -833,6 +889,7 @@ void DisplayPage::show_prev() {
   }
   this->prev_->show();
 }
+
 void DisplayPage::set_parent(Display *parent) { this->parent_ = parent; }
 void DisplayPage::set_prev(DisplayPage *prev) { this->prev_ = prev; }
 void DisplayPage::set_next(DisplayPage *next) { this->next_ = next; }
@@ -868,6 +925,5 @@ const LogString *text_align_to_string(TextAlign textalign) {
       return LOG_STR("UNKNOWN");
   }
 }
-
 }  // namespace display
 }  // namespace esphome

esphome/components/epaper_spi/display.py

@@ -4,8 +4,10 @@ import pkgutil
 from esphome import core, pins
 import esphome.codegen as cg
 from esphome.components import display, spi
+from esphome.components.display import CONF_SHOW_TEST_CARD, validate_rotation
 from esphome.components.mipi import flatten_sequence, map_sequence
 import esphome.config_validation as cv
+from esphome.config_validation import update_interval
 from esphome.const import (
     CONF_BUSY_PIN,
     CONF_CS_PIN,
@@ -13,15 +15,25 @@ from esphome.const import (
     CONF_DC_PIN,
     CONF_DIMENSIONS,
     CONF_ENABLE_PIN,
+    CONF_FULL_UPDATE_EVERY,
     CONF_HEIGHT,
     CONF_ID,
     CONF_INIT_SEQUENCE,
     CONF_LAMBDA,
+    CONF_MIRROR_X,
+    CONF_MIRROR_Y,
     CONF_MODEL,
+    CONF_PAGES,
     CONF_RESET_DURATION,
     CONF_RESET_PIN,
+    CONF_ROTATION,
+    CONF_SWAP_XY,
+    CONF_TRANSFORM,
+    CONF_UPDATE_INTERVAL,
     CONF_WIDTH,
 )
+from esphome.cpp_generator import RawExpression
+from esphome.final_validate import full_config
 
 from . import models
 
@@ -32,8 +44,9 @@ CONF_INIT_SEQUENCE_ID = "init_sequence_id"
 
 epaper_spi_ns = cg.esphome_ns.namespace("epaper_spi")
 EPaperBase = epaper_spi_ns.class_(
-    "EPaperBase", cg.PollingComponent, spi.SPIDevice, display.DisplayBuffer
+    "EPaperBase", cg.PollingComponent, spi.SPIDevice, display.Display
 )
+Transform = epaper_spi_ns.enum("Transform")
 
 EPaperSpectraE6 = epaper_spi_ns.class_("EPaperSpectraE6", EPaperBase)
 EPaper7p3InSpectraE6 = epaper_spi_ns.class_("EPaper7p3InSpectraE6", EPaperSpectraE6)
@@ -52,6 +65,8 @@ DIMENSION_SCHEMA = cv.Schema(
     }
 )
 
+TRANSFORM_OPTIONS = {CONF_MIRROR_X, CONF_MIRROR_Y, CONF_SWAP_XY}
+
 
 def model_schema(config):
     model = MODELS[config[CONF_MODEL]]
@@ -73,7 +88,18 @@ def model_schema(config):
         )
         .extend(
             {
+                cv.Optional(CONF_ROTATION, default=0): validate_rotation,
                 cv.Required(CONF_MODEL): cv.one_of(model.name, upper=True),
+                cv.Optional(
+                    CONF_UPDATE_INTERVAL, default=cv.UNDEFINED
+                ): update_interval,
+                cv.Optional(CONF_TRANSFORM): cv.Schema(
+                    {
+                        cv.Required(CONF_MIRROR_X): cv.boolean,
+                        cv.Required(CONF_MIRROR_Y): cv.boolean,
+                    }
+                ),
+                cv.Optional(CONF_FULL_UPDATE_EVERY, default=1): cv.int_range(1, 255),
                 model.option(CONF_DC_PIN, fallback=None): pins.gpio_output_pin_schema,
                 cv.GenerateID(): cv.declare_id(class_name),
                 cv.GenerateID(CONF_INIT_SEQUENCE_ID): cv.declare_id(cg.uint8),
@@ -111,9 +137,29 @@ def customise_schema(config):
 
 CONFIG_SCHEMA = customise_schema
 
-FINAL_VALIDATE_SCHEMA = spi.final_validate_device_schema(
-    "epaper_spi", require_miso=False, require_mosi=True
-)
+
+def _final_validate(config):
+    spi.final_validate_device_schema(
+        "epaper_spi", require_miso=False, require_mosi=True
+    )(config)
+
+    global_config = full_config.get()
+    from esphome.components.lvgl import DOMAIN as LVGL_DOMAIN
+
+    if CONF_LAMBDA not in config and CONF_PAGES not in config:
+        if LVGL_DOMAIN in global_config:
+            if CONF_UPDATE_INTERVAL not in config:
+                config[CONF_UPDATE_INTERVAL] = update_interval("never")
+        else:
+            # If no drawing methods are configured, and LVGL is not enabled, show a test card
+            config[CONF_SHOW_TEST_CARD] = True
+            config[CONF_UPDATE_INTERVAL] = core.TimePeriod(
+                seconds=60
+            ).total_milliseconds
+    return config
+
+
+FINAL_VALIDATE_SCHEMA = _final_validate
 
 
 async def to_code(config):
@@ -137,7 +183,9 @@ async def to_code(config):
         init_sequence_length,
     )
 
-    await display.register_display(var, config)
+    # Rotation is handled by setting the transform
+    display_config = {k: v for k, v in config.items() if k != CONF_ROTATION}
+    await display.register_display(var, display_config)
     await spi.register_spi_device(var, config)
 
     dc = await cg.gpio_pin_expression(config[CONF_DC_PIN])
@@ -148,11 +196,35 @@ async def to_code(config):
             config[CONF_LAMBDA], [(display.DisplayRef, "it")], return_type=cg.void
         )
         cg.add(var.set_writer(lambda_))
-    if CONF_RESET_PIN in config:
-        reset = await cg.gpio_pin_expression(config[CONF_RESET_PIN])
+    if reset_pin := config.get(CONF_RESET_PIN):
+        reset = await cg.gpio_pin_expression(reset_pin)
         cg.add(var.set_reset_pin(reset))
-    if CONF_BUSY_PIN in config:
-        busy = await cg.gpio_pin_expression(config[CONF_BUSY_PIN])
+    if busy_pin := config.get(CONF_BUSY_PIN):
+        busy = await cg.gpio_pin_expression(busy_pin)
         cg.add(var.set_busy_pin(busy))
+    cg.add(var.set_full_update_every(config[CONF_FULL_UPDATE_EVERY]))
     if CONF_RESET_DURATION in config:
         cg.add(var.set_reset_duration(config[CONF_RESET_DURATION]))
+    if transform := config.get(CONF_TRANSFORM):
+        transform[CONF_SWAP_XY] = False
+    else:
+        transform = {x: model.get_default(x, False) for x in TRANSFORM_OPTIONS}
+    rotation = config[CONF_ROTATION]
+    if rotation == 180:
+        transform[CONF_MIRROR_X] = not transform[CONF_MIRROR_X]
+        transform[CONF_MIRROR_Y] = not transform[CONF_MIRROR_Y]
+    elif rotation == 90:
+        transform[CONF_SWAP_XY] = not transform[CONF_SWAP_XY]
+        transform[CONF_MIRROR_X] = not transform[CONF_MIRROR_X]
+    elif rotation == 270:
+        transform[CONF_SWAP_XY] = not transform[CONF_SWAP_XY]
+        transform[CONF_MIRROR_Y] = not transform[CONF_MIRROR_Y]
+    transform_str = "|".join(
+        {
+            str(getattr(Transform, x.upper()))
+            for x in TRANSFORM_OPTIONS
+            if transform.get(x)
+        }
+    )
+    if transform_str:
+        cg.add(var.set_transform(RawExpression(transform_str)))

esphome/components/epaper_spi/epaper_spi.cpp

@@ -9,9 +9,8 @@ namespace esphome::epaper_spi {
 static const char *const TAG = "epaper_spi";
 
 static constexpr const char *const EPAPER_STATE_STRINGS[] = {
-    "IDLE",        "UPDATE",     "RESET",         "RESET_END",
-
-    "SHOULD_WAIT", "INITIALISE", "TRANSFER_DATA", "POWER_ON",  "REFRESH_SCREEN", "POWER_OFF", "DEEP_SLEEP",
+    "IDLE",          "UPDATE",   "RESET",          "RESET_END", "SHOULD_WAIT", "INITIALISE",
+    "TRANSFER_DATA", "POWER_ON", "REFRESH_SCREEN", "POWER_OFF", "DEEP_SLEEP",
 };
 
 const char *EPaperBase::epaper_state_to_string_() {
@@ -69,8 +68,8 @@ void EPaperBase::data(uint8_t value) {
 // The command is the first byte, length is the length of data only in the second byte, followed by the data.
 // [COMMAND, LENGTH, DATA...]
 void EPaperBase::cmd_data(uint8_t command, const uint8_t *ptr, size_t length) {
-  ESP_LOGVV(TAG, "Command: 0x%02X, Length: %d, Data: %s", command, length,
-            format_hex_pretty(ptr, length, '.', false).c_str());
+  ESP_LOGV(TAG, "Command: 0x%02X, Length: %d, Data: %s", command, length,
+           format_hex_pretty(ptr, length, '.', false).c_str());
 
   this->dc_pin_->digital_write(false);
   this->enable();
@@ -89,7 +88,7 @@ bool EPaperBase::is_idle_() const {
   return !this->busy_pin_->digital_read();
 }
 
-bool EPaperBase::reset_() const {
+bool EPaperBase::reset() {
   if (this->reset_pin_ != nullptr) {
     if (this->state_ == EPaperState::RESET) {
       this->reset_pin_->digital_write(false);
@@ -105,16 +104,16 @@ void EPaperBase::update() {
     ESP_LOGE(TAG, "Display already in state %s", epaper_state_to_string_());
     return;
   }
-  this->set_state_(EPaperState::RESET);
+  this->set_state_(EPaperState::UPDATE);
   this->enable_loop();
+#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_DEBUG
+  this->update_start_time_ = millis();
+#endif
 }
 
 void EPaperBase::wait_for_idle_(bool should_wait) {
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
-  if (should_wait) {
-    this->waiting_for_idle_start_ = millis();
-    this->waiting_for_idle_last_print_ = this->waiting_for_idle_start_;
-  }
+  this->waiting_for_idle_start_ = millis();
 #endif
   this->waiting_for_idle_ = should_wait;
 }
@@ -138,7 +137,9 @@ void EPaperBase::loop() {
   if (this->waiting_for_idle_) {
     if (this->is_idle_()) {
       this->waiting_for_idle_ = false;
-      ESP_LOGV(TAG, "Screen now idle after %u ms", (unsigned) (millis() - this->waiting_for_idle_start_));
+#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
+      ESP_LOGV(TAG, "Screen was busy for %u ms", (unsigned) (millis() - this->waiting_for_idle_start_));
+#endif
     } else {
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
       if (now - this->waiting_for_idle_last_print_ >= 1000) {
@@ -164,23 +165,27 @@ void EPaperBase::process_state_() {
   ESP_LOGV(TAG, "Process state entered in state %s", epaper_state_to_string_());
   switch (this->state_) {
     default:
-      ESP_LOGD(TAG, "Display is in unhandled state %s", epaper_state_to_string_());
-      this->disable_loop();
+      ESP_LOGE(TAG, "Display is in unhandled state %s", epaper_state_to_string_());
+      this->set_state_(EPaperState::IDLE);
       break;
     case EPaperState::IDLE:
       this->disable_loop();
       break;
     case EPaperState::RESET:
     case EPaperState::RESET_END:
-      if (this->reset_()) {
-        this->set_state_(EPaperState::UPDATE);
+      if (this->reset()) {
+        this->set_state_(EPaperState::INITIALISE);
       } else {
-        this->set_state_(EPaperState::RESET_END);
+        this->set_state_(EPaperState::RESET_END, this->reset_duration_);
       }
       break;
     case EPaperState::UPDATE:
       this->do_update_();  // Calls ESPHome (current page) lambda
-      this->set_state_(EPaperState::INITIALISE);
+      if (this->x_high_ < this->x_low_ || this->y_high_ < this->y_low_) {
+        this->set_state_(EPaperState::IDLE);
+        return;
+      }
+      this->set_state_(EPaperState::RESET);
       break;
     case EPaperState::INITIALISE:
       this->initialise_();
@@ -190,6 +195,10 @@ void EPaperBase::process_state_() {
       if (!this->transfer_data()) {
         return;  // Not done yet, come back next loop
       }
+      this->x_low_ = this->width_;
+      this->x_high_ = 0;
+      this->y_low_ = this->height_;
+      this->y_high_ = 0;
       this->set_state_(EPaperState::POWER_ON);
       break;
     case EPaperState::POWER_ON:
@@ -197,7 +206,8 @@ void EPaperBase::process_state_() {
       this->set_state_(EPaperState::REFRESH_SCREEN);
       break;
     case EPaperState::REFRESH_SCREEN:
-      this->refresh_screen();
+      this->refresh_screen(this->update_count_ != 0);
+      this->update_count_ = (this->update_count_ + 1) % this->full_update_every_;
       this->set_state_(EPaperState::POWER_OFF);
       break;
     case EPaperState::POWER_OFF:
@@ -207,6 +217,7 @@ void EPaperBase::process_state_() {
     case EPaperState::DEEP_SLEEP:
       this->deep_sleep();
       this->set_state_(EPaperState::IDLE);
+      ESP_LOGD(TAG, "Display update took %" PRIu32 " ms", millis() - this->update_start_time_);
       break;
   }
 }
@@ -222,6 +233,9 @@ void EPaperBase::set_state_(EPaperState state, uint16_t delay) {
   }
   ESP_LOGV(TAG, "Enter state %s, delay %u, wait_for_idle=%s", this->epaper_state_to_string_(), delay,
            TRUEFALSE(this->waiting_for_idle_));
+  if (state == EPaperState::IDLE) {
+    this->disable_loop();
+  }
 }
 
 void EPaperBase::start_command_() {
@@ -260,20 +274,73 @@ void EPaperBase::initialise_() {
         this->mark_failed();
         return;
       }
-      ESP_LOGV(TAG, "Command %02X, length %d", cmd, num_args);
       this->cmd_data(cmd, sequence + index, num_args);
       index += num_args;
     }
   }
 }
 
+/**
+ * Check and rotate coordinates based on the transform flags.
+ * @param x
+ * @param y
+ * @return false if the coordinates are out of bounds
+ */
+bool EPaperBase::rotate_coordinates_(int &x, int &y) const {
+  if (!this->get_clipping().inside(x, y))
+    return false;
+  if (this->transform_ & SWAP_XY)
+    std::swap(x, y);
+  if (this->transform_ & MIRROR_X)
+    x = this->width_ - x - 1;
+  if (this->transform_ & MIRROR_Y)
+    y = this->height_ - y - 1;
+  if (x >= this->width_ || y >= this->height_ || x < 0 || y < 0)
+    return false;
+  return true;
+}
+
+/**
+ *  Default implementation for monochrome displays where 8 pixels are packed to a byte.
+ * @param x
+ * @param y
+ * @param color
+ */
+void HOT EPaperBase::draw_pixel_at(int x, int y, Color color) {
+  if (!rotate_coordinates_(x, y))
+    return;
+  const size_t pixel_position = y * this->width_ + x;
+  const size_t byte_position = pixel_position / 8;
+  const uint8_t bit_position = pixel_position % 8;
+  const uint8_t pixel_bit = 0x80 >> bit_position;
+  const auto original = this->buffer_[byte_position];
+  if ((color_to_bit(color) == 0)) {
+    this->buffer_[byte_position] = original & ~pixel_bit;
+  } else {
+    this->buffer_[byte_position] = original | pixel_bit;
+  }
+  this->x_low_ = clamp_at_most(this->x_low_, x);
+  this->x_high_ = clamp_at_least(this->x_high_, x + 1);
+  this->y_low_ = clamp_at_most(this->y_low_, y);
+  this->y_high_ = clamp_at_least(this->y_high_, y + 1);
+}
+
 void EPaperBase::dump_config() {
   LOG_DISPLAY("", "E-Paper SPI", this);
   ESP_LOGCONFIG(TAG, "  Model: %s", this->name_);
   LOG_PIN("  Reset Pin: ", this->reset_pin_);
   LOG_PIN("  DC Pin: ", this->dc_pin_);
   LOG_PIN("  Busy Pin: ", this->busy_pin_);
+  LOG_PIN("  CS Pin: ", this->cs_);
   LOG_UPDATE_INTERVAL(this);
+  ESP_LOGCONFIG(TAG,
+                "  SPI Data Rate: %uMHz\n"
+                "  Full update every: %d\n"
+                "  Swap X/Y: %s\n"
+                "  Mirror X: %s\n"
+                "  Mirror Y: %s",
+                (unsigned) (this->data_rate_ / 1000000), this->full_update_every_, YESNO(this->transform_ & SWAP_XY),
+                YESNO(this->transform_ & MIRROR_X), YESNO(this->transform_ & MIRROR_Y));
 }
 
 }  // namespace esphome::epaper_spi

esphome/components/epaper_spi/epaper_spi.h

@@ -5,8 +5,6 @@
 #include "esphome/components/split_buffer/split_buffer.h"
 #include "esphome/core/component.h"
 
-#include <queue>
-
 namespace esphome::epaper_spi {
 using namespace display;
 
@@ -25,10 +23,16 @@ enum class EPaperState : uint8_t {
   DEEP_SLEEP,      // deep sleep the display
 };
 
-static constexpr uint8_t MAX_TRANSFER_TIME = 10;  // Transfer in 10ms blocks to allow the loop to run
+static constexpr uint8_t NONE = 0;
+static constexpr uint8_t MIRROR_X = 1;
+static constexpr uint8_t MIRROR_Y = 2;
+static constexpr uint8_t SWAP_XY = 4;
+
+static constexpr uint32_t MAX_TRANSFER_TIME = 10;  // Transfer in 10ms blocks to allow the loop to run
+static constexpr size_t MAX_TRANSFER_SIZE = 128;
 static constexpr uint8_t DELAY_FLAG = 0xFF;
 
-class EPaperBase : public DisplayBuffer,
+class EPaperBase : public Display,
                    public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW, spi::CLOCK_PHASE_LEADING,
                                          spi::DATA_RATE_2MHZ> {
  public:
@@ -45,6 +49,8 @@ class EPaperBase : public DisplayBuffer,
   void set_reset_pin(GPIOPin *reset) { this->reset_pin_ = reset; }
   void set_busy_pin(GPIOPin *busy) { this->busy_pin_ = busy; }
   void set_reset_duration(uint32_t reset_duration) { this->reset_duration_ = reset_duration; }
+  void set_transform(uint8_t transform) { this->transform_ = transform; }
+  void set_full_update_every(uint8_t full_update_every) { this->full_update_every_ = full_update_every; }
   void dump_config() override;
 
   void command(uint8_t value);
@@ -60,20 +66,47 @@ class EPaperBase : public DisplayBuffer,
 
   DisplayType get_display_type() override { return this->display_type_; };
 
+  // Default implementations for monochrome displays
+  static uint8_t color_to_bit(Color color) {
+    // It's always a shade of gray. Map to BLACK or WHITE.
+    // We split the luminance at a suitable point
+    if ((static_cast<int>(color.r) + color.g + color.b) > 512) {
+      return 1;
+    }
+    return 0;
+  }
+  void fill(Color color) override {
+    auto pixel_color = color_to_bit(color) ? 0xFF : 0x00;
+
+    // We store 8 pixels per byte
+    this->buffer_.fill(pixel_color);
+    this->x_high_ = this->width_;
+    this->y_high_ = this->height_;
+    this->x_low_ = 0;
+    this->y_low_ = 0;
+  }
+
+  void clear() override {
+    // clear buffer to white, just like real paper.
+    this->fill(COLOR_ON);
+  }
+
  protected:
   int get_height_internal() override { return this->height_; };
   int get_width_internal() override { return this->width_; };
+  int get_width() override { return this->transform_ & SWAP_XY ? this->height_ : this->width_; }
+  int get_height() override { return this->transform_ & SWAP_XY ? this->width_ : this->height_; }
+  void draw_pixel_at(int x, int y, Color color) override;
   void process_state_();
 
   const char *epaper_state_to_string_();
   bool is_idle_() const;
   void setup_pins_() const;
-  bool reset_() const;
+  virtual bool reset();
   void initialise_();
   void wait_for_idle_(bool should_wait);
   bool init_buffer_(size_t buffer_length);
-
-  virtual int get_width_controller() { return this->get_width_internal(); };
+  bool rotate_coordinates_(int &x, int &y) const;
 
   /**
    * Methods that must be implemented by concrete classes to control the display
@@ -86,7 +119,7 @@ class EPaperBase : public DisplayBuffer,
   /**
    * Refresh the screen after data transfer
    */
-  virtual void refresh_screen() = 0;
+  virtual void refresh_screen(bool partial) = 0;
 
   /**
    * Power the display on
@@ -118,24 +151,31 @@ class EPaperBase : public DisplayBuffer,
   DisplayType display_type_;
 
   size_t buffer_length_{};
-  size_t current_data_index_{0};  // used by data transfer to track progress
-  uint32_t reset_duration_{200};
-#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
-  uint32_t transfer_start_time_{};
-  uint32_t waiting_for_idle_last_print_{0};
-  uint32_t waiting_for_idle_start_{0};
-#endif
-
+  size_t current_data_index_{};  // used by data transfer to track progress
+  split_buffer::SplitBuffer buffer_{};
   GPIOPin *dc_pin_{};
   GPIOPin *busy_pin_{};
   GPIOPin *reset_pin_{};
+  bool waiting_for_idle_{};
+  uint32_t delay_until_{};
+  uint8_t transform_{};
+  uint8_t update_count_{};
+  // these values represent the bounds of the updated buffer. Note that x_high and y_high
+  // point to the pixel past the last one updated, i.e. may range up to width/height.
+  uint16_t x_low_{}, y_low_{}, x_high_{}, y_high_{};
 
-  bool waiting_for_idle_{false};
-  uint32_t delay_until_{0};
-
-  split_buffer::SplitBuffer buffer_;
+#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
+  uint32_t waiting_for_idle_last_print_{};
+  uint32_t waiting_for_idle_start_{};
+#endif
+#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_DEBUG
+  uint32_t update_start_time_{};
+#endif
 
+  // properties with specific initialisers go last
   EPaperState state_{EPaperState::IDLE};
+  uint32_t reset_duration_{10};
+  uint8_t full_update_every_{1};
 };
 
 }  // namespace esphome::epaper_spi

esphome/components/epaper_spi/epaper_spi_spectra_e6.cpp

@@ -6,7 +6,6 @@
 
 namespace esphome::epaper_spi {
 static constexpr const char *const TAG = "epaper_spi.6c";
-static constexpr size_t MAX_TRANSFER_SIZE = 128;
 static constexpr unsigned char GRAY_THRESHOLD = 50;
 
 enum E6Color {
@@ -75,24 +74,24 @@ static uint8_t color_to_hex(Color color) {
 }
 
 void EPaperSpectraE6::power_on() {
-  ESP_LOGD(TAG, "Power on");
+  ESP_LOGV(TAG, "Power on");
   this->command(0x04);
 }
 
 void EPaperSpectraE6::power_off() {
-  ESP_LOGD(TAG, "Power off");
+  ESP_LOGV(TAG, "Power off");
   this->command(0x02);
   this->data(0x00);
 }
 
-void EPaperSpectraE6::refresh_screen() {
-  ESP_LOGD(TAG, "Refresh");
+void EPaperSpectraE6::refresh_screen(bool partial) {
+  ESP_LOGV(TAG, "Refresh");
   this->command(0x12);
   this->data(0x00);
 }
 
 void EPaperSpectraE6::deep_sleep() {
-  ESP_LOGD(TAG, "Deep sleep");
+  ESP_LOGV(TAG, "Deep sleep");
   this->command(0x07);
   this->data(0xA5);
 }
@@ -109,12 +108,11 @@ void EPaperSpectraE6::clear() {
   this->fill(COLOR_ON);
 }
 
-void HOT EPaperSpectraE6::draw_absolute_pixel_internal(int x, int y, Color color) {
-  if (x >= this->width_ || y >= this->height_ || x < 0 || y < 0)
+void HOT EPaperSpectraE6::draw_pixel_at(int x, int y, Color color) {
+  if (!this->rotate_coordinates_(x, y))
     return;
-
   auto pixel_bits = color_to_hex(color);
-  uint32_t pixel_position = x + y * this->get_width_controller();
+  uint32_t pixel_position = x + y * this->get_width_internal();
   uint32_t byte_position = pixel_position / 2;
   auto original = this->buffer_[byte_position];
   if ((pixel_position & 1) != 0) {
@@ -128,10 +126,6 @@ bool HOT EPaperSpectraE6::transfer_data() {
   const uint32_t start_time = App.get_loop_component_start_time();
   const size_t buffer_length = this->buffer_length_;
   if (this->current_data_index_ == 0) {
-#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
-    this->transfer_start_time_ = millis();
-#endif
-    ESP_LOGV(TAG, "Start sending data at %ums", (unsigned) millis());
     this->command(0x10);
   }
 
@@ -160,7 +154,6 @@ bool HOT EPaperSpectraE6::transfer_data() {
     this->end_data_();
   }
   this->current_data_index_ = 0;
-  ESP_LOGV(TAG, "Sent data in %" PRIu32 " ms", millis() - this->transfer_start_time_);
   return true;
 }
 }  // namespace esphome::epaper_spi

esphome/components/epaper_spi/epaper_spi_spectra_e6.h

@@ -16,11 +16,11 @@ class EPaperSpectraE6 : public EPaperBase {
   void clear() override;
 
  protected:
-  void refresh_screen() override;
+  void refresh_screen(bool partial) override;
   void power_on() override;
   void power_off() override;
   void deep_sleep() override;
-  void draw_absolute_pixel_internal(int x, int y, Color color) override;
+  void draw_pixel_at(int x, int y, Color color) override;
 
   bool transfer_data() override;
 };

esphome/components/epaper_spi/epaper_spi_ssd1677.cpp

@@ -0,0 +1,86 @@
+#include "epaper_spi_ssd1677.h"
+
+#include <algorithm>
+
+#include "esphome/core/log.h"
+
+namespace esphome::epaper_spi {
+static constexpr const char *const TAG = "epaper_spi.ssd1677";
+
+void EPaperSSD1677::refresh_screen(bool partial) {
+  ESP_LOGV(TAG, "Refresh screen");
+  this->command(0x22);
+  this->data(partial ? 0xFF : 0xF7);
+  this->command(0x20);
+}
+
+void EPaperSSD1677::deep_sleep() {
+  ESP_LOGV(TAG, "Deep sleep");
+  this->command(0x10);
+}
+
+bool EPaperSSD1677::reset() {
+  if (EPaperBase::reset()) {
+    this->command(0x12);
+    return true;
+  }
+  return false;
+}
+
+bool HOT EPaperSSD1677::transfer_data() {
+  auto start_time = millis();
+  if (this->current_data_index_ == 0) {
+    uint8_t data[4]{};
+    // round to byte boundaries
+    this->x_low_ &= ~7;
+    this->y_low_ &= ~7;
+    this->x_high_ += 7;
+    this->x_high_ &= ~7;
+    this->y_high_ += 7;
+    this->y_high_ &= ~7;
+    data[0] = this->x_low_;
+    data[1] = this->x_low_ / 256;
+    data[2] = this->x_high_ - 1;
+    data[3] = (this->x_high_ - 1) / 256;
+    cmd_data(0x4E, data, 2);
+    cmd_data(0x44, data, sizeof(data));
+    data[0] = this->y_low_;
+    data[1] = this->y_low_ / 256;
+    data[2] = this->y_high_ - 1;
+    data[3] = (this->y_high_ - 1) / 256;
+    cmd_data(0x4F, data, 2);
+    this->cmd_data(0x45, data, sizeof(data));
+    // for monochrome, we still need to clear the red data buffer at least once to prevent it
+    // causing dirty pixels after partial refresh.
+    this->command(this->send_red_ ? 0x26 : 0x24);
+    this->current_data_index_ = this->y_low_;  // actually current line
+  }
+  size_t row_length = (this->x_high_ - this->x_low_) / 8;
+  FixedVector<uint8_t> bytes_to_send{};
+  bytes_to_send.init(row_length);
+  ESP_LOGV(TAG, "Writing bytes at line %zu at %ums", this->current_data_index_, (unsigned) millis());
+  this->start_data_();
+  while (this->current_data_index_ != this->y_high_) {
+    size_t data_idx = (this->current_data_index_ * this->width_ + this->x_low_) / 8;
+    for (size_t i = 0; i != row_length; i++) {
+      bytes_to_send[i] = this->send_red_ ? 0 : this->buffer_[data_idx++];
+    }
+    ++this->current_data_index_;
+    this->write_array(&bytes_to_send.front(), row_length);  // NOLINT
+    if (millis() - start_time > MAX_TRANSFER_TIME) {
+      // Let the main loop run and come back next loop
+      this->end_data_();
+      return false;
+    }
+  }
+
+  this->end_data_();
+  this->current_data_index_ = 0;
+  if (this->send_red_) {
+    this->send_red_ = false;
+    return false;
+  }
+  return true;
+}
+
+}  // namespace esphome::epaper_spi

esphome/components/epaper_spi/epaper_spi_ssd1677.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include "epaper_spi.h"
+
+namespace esphome::epaper_spi {
+
+class EPaperSSD1677 : public EPaperBase {
+ public:
+  EPaperSSD1677(const char *name, uint16_t width, uint16_t height, const uint8_t *init_sequence,
+                size_t init_sequence_length)
+      : EPaperBase(name, width, height, init_sequence, init_sequence_length, DISPLAY_TYPE_BINARY) {
+    this->buffer_length_ = width * height / 8;  // 8 pixels per byte
+  }
+
+ protected:
+  void refresh_screen(bool partial) override;
+  void power_on() override {}
+  void power_off() override{};
+  void deep_sleep() override;
+  bool reset() override;
+  bool transfer_data() override;
+  bool send_red_{true};
+};
+
+}  // namespace esphome::epaper_spi

esphome/components/epaper_spi/models/ssd1677.py

@@ -0,0 +1,42 @@
+from esphome.const import CONF_DATA_RATE
+
+from . import EpaperModel
+
+
+class SSD1677(EpaperModel):
+    def __init__(self, name, class_name="EPaperSSD1677", **kwargs):
+        if CONF_DATA_RATE not in kwargs:
+            kwargs[CONF_DATA_RATE] = "20MHz"
+        super().__init__(name, class_name, **kwargs)
+
+    # fmt: off
+    def get_init_sequence(self, config: dict):
+        width, _height = self.get_dimensions(config)
+        return (
+            (0x18, 0x80),    # Select internal Temp sensor
+            (0x0C, 0xAE, 0xC7, 0xC3, 0xC0, 0x80),  # inrush current level 2
+            (0x01, (width - 1) % 256, (width - 1) // 256, 0x02),    # Set column gate limit
+            (0x3C, 0x01),    # Set border waveform
+            (0x11, 3),      # Set transform
+        )
+
+
+ssd1677 = SSD1677("ssd1677")
+
+ssd1677.extend(
+    "seeed-ee04-mono-4.26",
+    width=800,
+    height=480,
+    mirror_x=True,
+    cs_pin=44,
+    dc_pin=10,
+    reset_pin=38,
+    busy_pin={
+        "number": 4,
+        "inverted": False,
+        "mode": {
+            "input": True,
+            "pulldown": True,
+        },
+    },
+)

esphome/components/esp32/__init__.py

@@ -37,6 +37,7 @@ from esphome.const import (
     __version__,
 )
 from esphome.core import CORE, HexInt, TimePeriod
+from esphome.coroutine import CoroPriority, coroutine_with_priority
 import esphome.final_validate as fv
 from esphome.helpers import copy_file_if_changed, write_file_if_changed
 from esphome.types import ConfigType
@@ -262,15 +263,32 @@ def add_idf_component(
             "deprecated and will be removed in ESPHome 2026.1. If you are seeing this, report "
             "an issue to the external_component author and ask them to update it."
         )
+    components_registry = CORE.data[KEY_ESP32][KEY_COMPONENTS]
     if components:
         for comp in components:
-            CORE.data[KEY_ESP32][KEY_COMPONENTS][comp] = {
+            existing = components_registry.get(comp)
+            if existing and existing.get(KEY_REF) != ref:
+                _LOGGER.warning(
+                    "IDF component %s version conflict %s replaced by %s",
+                    comp,
+                    existing.get(KEY_REF),
+                    ref,
+                )
+            components_registry[comp] = {
                 KEY_REPO: repo,
                 KEY_REF: ref,
                 KEY_PATH: f"{path}/{comp}" if path else comp,
             }
     else:
-        CORE.data[KEY_ESP32][KEY_COMPONENTS][name] = {
+        existing = components_registry.get(name)
+        if existing and existing.get(KEY_REF) != ref:
+            _LOGGER.warning(
+                "IDF component %s version conflict %s replaced by %s",
+                name,
+                existing.get(KEY_REF),
+                ref,
+            )
+        components_registry[name] = {
             KEY_REPO: repo,
             KEY_REF: ref,
             KEY_PATH: path,
@@ -592,6 +610,14 @@ def require_vfs_dir() -> None:
     CORE.data[KEY_VFS_DIR_REQUIRED] = True
 
 
+def _parse_idf_component(value: str) -> ConfigType:
+    """Parse IDF component shorthand syntax like 'owner/component^version'"""
+    if "^" not in value:
+        raise cv.Invalid(f"Invalid IDF component shorthand '{value}'")
+    name, ref = value.split("^", 1)
+    return {CONF_NAME: name, CONF_REF: ref}
+
+
 def _validate_idf_component(config: ConfigType) -> ConfigType:
     """Validate IDF component config and warn about deprecated options."""
     if CONF_REFRESH in config:
@@ -659,14 +685,19 @@ FRAMEWORK_SCHEMA = cv.Schema(
         ),
         cv.Optional(CONF_COMPONENTS, default=[]): cv.ensure_list(
             cv.All(
-                cv.Schema(
-                    {
-                        cv.Required(CONF_NAME): cv.string_strict,
-                        cv.Optional(CONF_SOURCE): cv.git_ref,
-                        cv.Optional(CONF_REF): cv.string,
-                        cv.Optional(CONF_PATH): cv.string,
-                        cv.Optional(CONF_REFRESH): cv.All(cv.string, cv.source_refresh),
-                    }
+                cv.Any(
+                    cv.All(cv.string_strict, _parse_idf_component),
+                    cv.Schema(
+                        {
+                            cv.Required(CONF_NAME): cv.string_strict,
+                            cv.Optional(CONF_SOURCE): cv.git_ref,
+                            cv.Optional(CONF_REF): cv.string,
+                            cv.Optional(CONF_PATH): cv.string,
+                            cv.Optional(CONF_REFRESH): cv.All(
+                                cv.string, cv.source_refresh
+                            ),
+                        }
+                    ),
                 ),
                 _validate_idf_component,
             )
@@ -851,6 +882,18 @@ def _configure_lwip_max_sockets(conf: dict) -> None:
     add_idf_sdkconfig_option("CONFIG_LWIP_MAX_SOCKETS", max_sockets)
 
 
+@coroutine_with_priority(CoroPriority.FINAL)
+async def _add_yaml_idf_components(components: list[ConfigType]):
+    """Add IDF components from YAML config with final priority to override code-added components."""
+    for component in components:
+        add_idf_component(
+            name=component[CONF_NAME],
+            repo=component.get(CONF_SOURCE),
+            ref=component.get(CONF_REF),
+            path=component.get(CONF_PATH),
+        )
+
+
 async def to_code(config):
     cg.add_platformio_option("board", config[CONF_BOARD])
     cg.add_platformio_option("board_upload.flash_size", config[CONF_FLASH_SIZE])
@@ -1097,13 +1140,10 @@ async def to_code(config):
     for name, value in conf[CONF_SDKCONFIG_OPTIONS].items():
         add_idf_sdkconfig_option(name, RawSdkconfigValue(value))
 
-    for component in conf[CONF_COMPONENTS]:
-        add_idf_component(
-            name=component[CONF_NAME],
-            repo=component.get(CONF_SOURCE),
-            ref=component.get(CONF_REF),
-            path=component.get(CONF_PATH),
-        )
+    # Components from YAML are added in a separate coroutine with FINAL priority
+    # Schedule it to run after all other components
+    if conf[CONF_COMPONENTS]:
+        CORE.add_job(_add_yaml_idf_components, conf[CONF_COMPONENTS])
 
 
 APP_PARTITION_SIZES = {

esphome/components/esp32_ble_client/ble_characteristic.cpp

@@ -38,7 +38,7 @@ void BLECharacteristic::parse_descriptors() {
     }
     if (status != ESP_GATT_OK) {
       ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_get_all_descr error, status=%d",
-               this->service->client->get_connection_index(), this->service->client->address_str().c_str(), status);
+               this->service->client->get_connection_index(), this->service->client->address_str(), status);
       break;
     }
     if (count == 0) {
@@ -51,7 +51,7 @@ void BLECharacteristic::parse_descriptors() {
     desc->characteristic = this;
     this->descriptors.push_back(desc);
     ESP_LOGV(TAG, "[%d] [%s]    descriptor %s, handle 0x%x", this->service->client->get_connection_index(),
-             this->service->client->address_str().c_str(), desc->uuid.to_string().c_str(), desc->handle);
+             this->service->client->address_str(), desc->uuid.to_string().c_str(), desc->handle);
     offset++;
   }
 }
@@ -84,7 +84,7 @@ esp_err_t BLECharacteristic::write_value(uint8_t *new_val, int16_t new_val_size,
                                          new_val, write_type, ESP_GATT_AUTH_REQ_NONE);
   if (status) {
     ESP_LOGW(TAG, "[%d] [%s] Error sending write value to BLE gattc server, status=%d",
-             this->service->client->get_connection_index(), this->service->client->address_str().c_str(), status);
+             this->service->client->get_connection_index(), this->service->client->address_str(), status);
   }
   return status;
 }

esphome/components/esp32_ble_client/ble_client_base.cpp

@@ -41,7 +41,7 @@ void BLEClientBase::setup() {
 }
 
 void BLEClientBase::set_state(espbt::ClientState st) {
-  ESP_LOGV(TAG, "[%d] [%s] Set state %d", this->connection_index_, this->address_str_.c_str(), (int) st);
+  ESP_LOGV(TAG, "[%d] [%s] Set state %d", this->connection_index_, this->address_str_, (int) st);
   ESPBTClient::set_state(st);
 }
 
@@ -71,7 +71,7 @@ void BLEClientBase::dump_config() {
   ESP_LOGCONFIG(TAG,
                 "  Address: %s\n"
                 "  Auto-Connect: %s",
-                this->address_str().c_str(), TRUEFALSE(this->auto_connect_));
+                this->address_str(), TRUEFALSE(this->auto_connect_));
   ESP_LOGCONFIG(TAG, "  State: %s", espbt::client_state_to_string(this->state()));
   if (this->status_ == ESP_GATT_NO_RESOURCES) {
     ESP_LOGE(TAG, "  Failed due to no resources. Try to reduce number of BLE clients in config.");
@@ -104,12 +104,11 @@ void BLEClientBase::connect() {
   // Prevent duplicate connection attempts
   if (this->state_ == espbt::ClientState::CONNECTING || this->state_ == espbt::ClientState::CONNECTED ||
       this->state_ == espbt::ClientState::ESTABLISHED) {
-    ESP_LOGW(TAG, "[%d] [%s] Connection already in progress, state=%s", this->connection_index_,
-             this->address_str_.c_str(), espbt::client_state_to_string(this->state_));
+    ESP_LOGW(TAG, "[%d] [%s] Connection already in progress, state=%s", this->connection_index_, this->address_str_,
+             espbt::client_state_to_string(this->state_));
     return;
   }
-  ESP_LOGI(TAG, "[%d] [%s] 0x%02x Connecting", this->connection_index_, this->address_str_.c_str(),
-           this->remote_addr_type_);
+  ESP_LOGI(TAG, "[%d] [%s] 0x%02x Connecting", this->connection_index_, this->address_str_, this->remote_addr_type_);
   this->paired_ = false;
   // Enable loop for state processing
   this->enable_loop();
@@ -135,13 +134,13 @@ esp_err_t BLEClientBase::pair() { return esp_ble_set_encryption(this->remote_bda
 
 void BLEClientBase::disconnect() {
   if (this->state_ == espbt::ClientState::IDLE || this->state_ == espbt::ClientState::DISCONNECTING) {
-    ESP_LOGI(TAG, "[%d] [%s] Disconnect requested, but already %s", this->connection_index_, this->address_str_.c_str(),
+    ESP_LOGI(TAG, "[%d] [%s] Disconnect requested, but already %s", this->connection_index_, this->address_str_,
              espbt::client_state_to_string(this->state_));
     return;
   }
   if (this->state_ == espbt::ClientState::CONNECTING || this->conn_id_ == UNSET_CONN_ID) {
     ESP_LOGD(TAG, "[%d] [%s] Disconnect before connected, disconnect scheduled", this->connection_index_,
-             this->address_str_.c_str());
+             this->address_str_);
     this->want_disconnect_ = true;
     return;
   }
@@ -150,8 +149,7 @@ void BLEClientBase::disconnect() {
 
 void BLEClientBase::unconditional_disconnect() {
   // Disconnect without checking the state.
-  ESP_LOGI(TAG, "[%d] [%s] Disconnecting (conn_id: %d).", this->connection_index_, this->address_str_.c_str(),
-           this->conn_id_);
+  ESP_LOGI(TAG, "[%d] [%s] Disconnecting (conn_id: %d).", this->connection_index_, this->address_str_, this->conn_id_);
   if (this->state_ == espbt::ClientState::DISCONNECTING) {
     this->log_error_("Already disconnecting");
     return;
@@ -192,24 +190,23 @@ void BLEClientBase::release_services() {
 }
 
 void BLEClientBase::log_event_(const char *name) {
-  ESP_LOGD(TAG, "[%d] [%s] %s", this->connection_index_, this->address_str_.c_str(), name);
+  ESP_LOGD(TAG, "[%d] [%s] %s", this->connection_index_, this->address_str_, name);
 }
 
 void BLEClientBase::log_gattc_event_(const char *name) {
-  ESP_LOGD(TAG, "[%d] [%s] ESP_GATTC_%s_EVT", this->connection_index_, this->address_str_.c_str(), name);
+  ESP_LOGD(TAG, "[%d] [%s] ESP_GATTC_%s_EVT", this->connection_index_, this->address_str_, name);
 }
 
 void BLEClientBase::log_gattc_warning_(const char *operation, esp_gatt_status_t status) {
-  ESP_LOGW(TAG, "[%d] [%s] %s error, status=%d", this->connection_index_, this->address_str_.c_str(), operation,
-           status);
+  ESP_LOGW(TAG, "[%d] [%s] %s error, status=%d", this->connection_index_, this->address_str_, operation, status);
 }
 
 void BLEClientBase::log_gattc_warning_(const char *operation, esp_err_t err) {
-  ESP_LOGW(TAG, "[%d] [%s] %s error, status=%d", this->connection_index_, this->address_str_.c_str(), operation, err);
+  ESP_LOGW(TAG, "[%d] [%s] %s error, status=%d", this->connection_index_, this->address_str_, operation, err);
 }
 
 void BLEClientBase::log_connection_params_(const char *param_type) {
-  ESP_LOGD(TAG, "[%d] [%s] %s conn params", this->connection_index_, this->address_str_.c_str(), param_type);
+  ESP_LOGD(TAG, "[%d] [%s] %s conn params", this->connection_index_, this->address_str_, param_type);
 }
 
 void BLEClientBase::handle_connection_result_(esp_err_t ret) {
@@ -220,15 +217,15 @@ void BLEClientBase::handle_connection_result_(esp_err_t ret) {
 }
 
 void BLEClientBase::log_error_(const char *message) {
-  ESP_LOGE(TAG, "[%d] [%s] %s", this->connection_index_, this->address_str_.c_str(), message);
+  ESP_LOGE(TAG, "[%d] [%s] %s", this->connection_index_, this->address_str_, message);
 }
 
 void BLEClientBase::log_error_(const char *message, int code) {
-  ESP_LOGE(TAG, "[%d] [%s] %s=%d", this->connection_index_, this->address_str_.c_str(), message, code);
+  ESP_LOGE(TAG, "[%d] [%s] %s=%d", this->connection_index_, this->address_str_, message, code);
 }
 
 void BLEClientBase::log_warning_(const char *message) {
-  ESP_LOGW(TAG, "[%d] [%s] %s", this->connection_index_, this->address_str_.c_str(), message);
+  ESP_LOGW(TAG, "[%d] [%s] %s", this->connection_index_, this->address_str_, message);
 }
 
 void BLEClientBase::update_conn_params_(uint16_t min_interval, uint16_t max_interval, uint16_t latency,
@@ -264,13 +261,13 @@ bool BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_
   if (event != ESP_GATTC_REG_EVT && esp_gattc_if != ESP_GATT_IF_NONE && esp_gattc_if != this->gattc_if_)
     return false;
 
-  ESP_LOGV(TAG, "[%d] [%s] gattc_event_handler: event=%d gattc_if=%d", this->connection_index_,
-           this->address_str_.c_str(), event, esp_gattc_if);
+  ESP_LOGV(TAG, "[%d] [%s] gattc_event_handler: event=%d gattc_if=%d", this->connection_index_, this->address_str_,
+           event, esp_gattc_if);
 
   switch (event) {
     case ESP_GATTC_REG_EVT: {
       if (param->reg.status == ESP_GATT_OK) {
-        ESP_LOGV(TAG, "[%d] [%s] gattc registered app id %d", this->connection_index_, this->address_str_.c_str(),
+        ESP_LOGV(TAG, "[%d] [%s] gattc registered app id %d", this->connection_index_, this->address_str_,
                  this->app_id);
         this->gattc_if_ = esp_gattc_if;
       } else {
@@ -292,7 +289,7 @@ bool BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_
       // arriving after we've already transitioned to IDLE state.
       if (this->state_ == espbt::ClientState::IDLE) {
         ESP_LOGD(TAG, "[%d] [%s] ESP_GATTC_OPEN_EVT in IDLE state (status=%d), ignoring", this->connection_index_,
-                 this->address_str_.c_str(), param->open.status);
+                 this->address_str_, param->open.status);
         break;
       }
 
@@ -301,7 +298,7 @@ bool BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_
         // because it means we have a bad assumption about how the
         // ESP BT stack works.
         ESP_LOGE(TAG, "[%d] [%s] ESP_GATTC_OPEN_EVT in %s state (status=%d)", this->connection_index_,
-                 this->address_str_.c_str(), espbt::client_state_to_string(this->state_), param->open.status);
+                 this->address_str_, espbt::client_state_to_string(this->state_), param->open.status);
       }
       if (param->open.status != ESP_GATT_OK && param->open.status != ESP_GATT_ALREADY_OPEN) {
         this->log_gattc_warning_("Connection open", param->open.status);
@@ -318,7 +315,7 @@ bool BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_
       }
       // MTU negotiation already started in ESP_GATTC_CONNECT_EVT
       this->set_state(espbt::ClientState::CONNECTED);
-      ESP_LOGI(TAG, "[%d] [%s] Connection open", this->connection_index_, this->address_str_.c_str());
+      ESP_LOGI(TAG, "[%d] [%s] Connection open", this->connection_index_, this->address_str_);
       if (this->connection_type_ == espbt::ConnectionType::V3_WITH_CACHE) {
         // Cached connections already connected with medium parameters, no update needed
         // only set our state, subclients might have more stuff to do yet.
@@ -354,8 +351,8 @@ bool BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_
           this->state_ == espbt::ClientState::CONNECTED) {
         this->log_warning_("Remote closed during discovery");
       } else {
-        ESP_LOGD(TAG, "[%d] [%s] ESP_GATTC_DISCONNECT_EVT, reason 0x%02x", this->connection_index_,
-                 this->address_str_.c_str(), param->disconnect.reason);
+        ESP_LOGD(TAG, "[%d] [%s] ESP_GATTC_DISCONNECT_EVT, reason 0x%02x", this->connection_index_, this->address_str_,
+                 param->disconnect.reason);
       }
       this->release_services();
       this->set_state(espbt::ClientState::IDLE);
@@ -366,12 +363,12 @@ bool BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_
       if (this->conn_id_ != param->cfg_mtu.conn_id)
         return false;
       if (param->cfg_mtu.status != ESP_GATT_OK) {
-        ESP_LOGW(TAG, "[%d] [%s] cfg_mtu failed, mtu %d, status %d", this->connection_index_,
-                 this->address_str_.c_str(), param->cfg_mtu.mtu, param->cfg_mtu.status);
+        ESP_LOGW(TAG, "[%d] [%s] cfg_mtu failed, mtu %d, status %d", this->connection_index_, this->address_str_,
+                 param->cfg_mtu.mtu, param->cfg_mtu.status);
         // No state change required here - disconnect event will follow if needed.
         break;
       }
-      ESP_LOGD(TAG, "[%d] [%s] cfg_mtu status %d, mtu %d", this->connection_index_, this->address_str_.c_str(),
+      ESP_LOGD(TAG, "[%d] [%s] cfg_mtu status %d, mtu %d", this->connection_index_, this->address_str_,
                param->cfg_mtu.status, param->cfg_mtu.mtu);
       this->mtu_ = param->cfg_mtu.mtu;
       break;
@@ -415,14 +412,14 @@ bool BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_
       } else if (this->connection_type_ != espbt::ConnectionType::V3_WITH_CACHE) {
 #ifdef USE_ESP32_BLE_DEVICE
         for (auto &svc : this->services_) {
-          ESP_LOGV(TAG, "[%d] [%s] Service UUID: %s", this->connection_index_, this->address_str_.c_str(),
+          ESP_LOGV(TAG, "[%d] [%s] Service UUID: %s", this->connection_index_, this->address_str_,
                    svc->uuid.to_string().c_str());
-          ESP_LOGV(TAG, "[%d] [%s]  start_handle: 0x%x  end_handle: 0x%x", this->connection_index_,
-                   this->address_str_.c_str(), svc->start_handle, svc->end_handle);
+          ESP_LOGV(TAG, "[%d] [%s]  start_handle: 0x%x  end_handle: 0x%x", this->connection_index_, this->address_str_,
+                   svc->start_handle, svc->end_handle);
         }
 #endif
       }
-      ESP_LOGI(TAG, "[%d] [%s] Service discovery complete", this->connection_index_, this->address_str_.c_str());
+      ESP_LOGI(TAG, "[%d] [%s] Service discovery complete", this->connection_index_, this->address_str_);
       this->state_ = espbt::ClientState::ESTABLISHED;
       break;
     }
@@ -503,7 +500,7 @@ bool BLEClientBase::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_
 
     default:
       // ideally would check all other events for matching conn_id
-      ESP_LOGD(TAG, "[%d] [%s] Event %d", this->connection_index_, this->address_str_.c_str(), event);
+      ESP_LOGD(TAG, "[%d] [%s] Event %d", this->connection_index_, this->address_str_, event);
       break;
   }
   return true;
@@ -520,7 +517,7 @@ void BLEClientBase::gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_
     case ESP_GAP_BLE_SEC_REQ_EVT:
       if (!this->check_addr(param->ble_security.auth_cmpl.bd_addr))
         return;
-      ESP_LOGV(TAG, "[%d] [%s] ESP_GAP_BLE_SEC_REQ_EVT %x", this->connection_index_, this->address_str_.c_str(), event);
+      ESP_LOGV(TAG, "[%d] [%s] ESP_GAP_BLE_SEC_REQ_EVT %x", this->connection_index_, this->address_str_, event);
       esp_ble_gap_security_rsp(param->ble_security.ble_req.bd_addr, true);
       break;
     // This event is sent once authentication has completed
@@ -529,13 +526,13 @@ void BLEClientBase::gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_
         return;
       esp_bd_addr_t bd_addr;
       memcpy(bd_addr, param->ble_security.auth_cmpl.bd_addr, sizeof(esp_bd_addr_t));
-      ESP_LOGI(TAG, "[%d] [%s] auth complete addr: %s", this->connection_index_, this->address_str_.c_str(),
+      ESP_LOGI(TAG, "[%d] [%s] auth complete addr: %s", this->connection_index_, this->address_str_,
                format_hex(bd_addr, 6).c_str());
       if (!param->ble_security.auth_cmpl.success) {
         this->log_error_("auth fail reason", param->ble_security.auth_cmpl.fail_reason);
       } else {
         this->paired_ = true;
-        ESP_LOGD(TAG, "[%d] [%s] auth success type = %d mode = %d", this->connection_index_, this->address_str_.c_str(),
+        ESP_LOGD(TAG, "[%d] [%s] auth success type = %d mode = %d", this->connection_index_, this->address_str_,
                  param->ble_security.auth_cmpl.addr_type, param->ble_security.auth_cmpl.auth_mode);
       }
       break;
@@ -598,7 +595,7 @@ float BLEClientBase::parse_char_value(uint8_t *value, uint16_t length) {
       }
   }
   ESP_LOGW(TAG, "[%d] [%s] Cannot parse characteristic value of type 0x%x length %d", this->connection_index_,
-           this->address_str_.c_str(), value[0], length);
+           this->address_str_, value[0], length);
   return NAN;
 }
 

esphome/components/esp32_ble_client/ble_client_base.h

@@ -10,7 +10,6 @@
 #endif
 
 #include <array>
-#include <string>
 #include <vector>
 
 #include <esp_bt_defs.h>
@@ -23,6 +22,7 @@ namespace esphome::esp32_ble_client {
 namespace espbt = esphome::esp32_ble_tracker;
 
 static const int UNSET_CONN_ID = 0xFFFF;
+static constexpr size_t MAC_ADDR_STR_LEN = 18;  // "AA:BB:CC:DD:EE:FF\0"
 
 class BLEClientBase : public espbt::ESPBTClient, public Component {
  public:
@@ -58,14 +58,12 @@ class BLEClientBase : public espbt::ESPBTClient, public Component {
     this->remote_bda_[4] = (address >> 8) & 0xFF;
     this->remote_bda_[5] = (address >> 0) & 0xFF;
     if (address == 0) {
-      this->address_str_ = "";
+      this->address_str_[0] = '\0';
     } else {
-      char buf[18];
-      format_mac_addr_upper(this->remote_bda_, buf);
-      this->address_str_ = buf;
+      format_mac_addr_upper(this->remote_bda_, this->address_str_);
     }
   }
-  const std::string &address_str() const { return this->address_str_; }
+  const char *address_str() const { return this->address_str_; }
 
 #ifdef USE_ESP32_BLE_DEVICE
   BLEService *get_service(espbt::ESPBTUUID uuid);
@@ -104,7 +102,6 @@ class BLEClientBase : public espbt::ESPBTClient, public Component {
   uint64_t address_{0};
 
   // Group 2: Container types (grouped for memory optimization)
-  std::string address_str_{};
 #ifdef USE_ESP32_BLE_DEVICE
   std::vector<BLEService *> services_;
 #endif
@@ -113,8 +110,9 @@ class BLEClientBase : public espbt::ESPBTClient, public Component {
   int gattc_if_;
   esp_gatt_status_t status_{ESP_GATT_OK};
 
-  // Group 4: Arrays (6 bytes)
-  esp_bd_addr_t remote_bda_;
+  // Group 4: Arrays
+  char address_str_[MAC_ADDR_STR_LEN]{};  // 18 bytes: "AA:BB:CC:DD:EE:FF\0"
+  esp_bd_addr_t remote_bda_;              // 6 bytes
 
   // Group 5: 2-byte types
   uint16_t conn_id_{UNSET_CONN_ID};

esphome/components/esp32_ble_client/ble_service.cpp

@@ -51,7 +51,7 @@ void BLEService::parse_characteristics() {
     }
     if (status != ESP_GATT_OK) {
       ESP_LOGW(TAG, "[%d] [%s] esp_ble_gattc_get_all_char error, status=%d", this->client->get_connection_index(),
-               this->client->address_str().c_str(), status);
+               this->client->address_str(), status);
       break;
     }
     if (count == 0) {
@@ -65,7 +65,7 @@ void BLEService::parse_characteristics() {
     characteristic->service = this;
     this->characteristics.push_back(characteristic);
     ESP_LOGV(TAG, "[%d] [%s]  characteristic %s, handle 0x%x, properties 0x%x", this->client->get_connection_index(),
-             this->client->address_str().c_str(), characteristic->uuid.to_string().c_str(), characteristic->handle,
+             this->client->address_str(), characteristic->uuid.to_string().c_str(), characteristic->handle,
              characteristic->properties);
     offset++;
   }

esphome/components/esp32_ble_tracker/esp32_ble_tracker.cpp

@@ -373,7 +373,9 @@ void ESP32BLETracker::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_i
 
 void ESP32BLETracker::set_scanner_state_(ScannerState state) {
   this->scanner_state_ = state;
-  this->scanner_state_callbacks_.call(state);
+  for (auto *listener : this->scanner_state_listeners_) {
+    listener->on_scanner_state(state);
+  }
 }
 
 #ifdef USE_ESP32_BLE_DEVICE

esphome/components/esp32_ble_tracker/esp32_ble_tracker.h

@@ -180,6 +180,16 @@ enum class ScannerState {
   STOPPING,
 };
 
+/** Listener interface for BLE scanner state changes.
+ *
+ * Components can implement this interface to receive scanner state updates
+ * without the overhead of std::function callbacks.
+ */
+class BLEScannerStateListener {
+ public:
+  virtual void on_scanner_state(ScannerState state) = 0;
+};
+
 // Helper function to convert ClientState to string
 const char *client_state_to_string(ClientState state);
 
@@ -264,8 +274,9 @@ class ESP32BLETracker : public Component,
   void gap_scan_event_handler(const BLEScanResult &scan_result) override;
   void ble_before_disabled_event_handler() override;
 
-  void add_scanner_state_callback(std::function<void(ScannerState)> &&callback) {
-    this->scanner_state_callbacks_.add(std::move(callback));
+  /// Add a listener for scanner state changes
+  void add_scanner_state_listener(BLEScannerStateListener *listener) {
+    this->scanner_state_listeners_.push_back(listener);
   }
   ScannerState get_scanner_state() const { return this->scanner_state_; }
 
@@ -322,14 +333,14 @@ class ESP32BLETracker : public Component,
     return counts;
   }
 
-  // Group 1: Large objects (12+ bytes) - vectors and callback manager
+  // Group 1: Large objects (12+ bytes) - vectors
 #ifdef ESPHOME_ESP32_BLE_TRACKER_LISTENER_COUNT
   StaticVector<ESPBTDeviceListener *, ESPHOME_ESP32_BLE_TRACKER_LISTENER_COUNT> listeners_;
 #endif
 #ifdef ESPHOME_ESP32_BLE_TRACKER_CLIENT_COUNT
   StaticVector<ESPBTClient *, ESPHOME_ESP32_BLE_TRACKER_CLIENT_COUNT> clients_;
 #endif
-  CallbackManager<void(ScannerState)> scanner_state_callbacks_;
+  std::vector<BLEScannerStateListener *> scanner_state_listeners_;
 #ifdef USE_ESP32_BLE_DEVICE
   /// Vector of addresses that have already been printed in print_bt_device_info
   std::vector<uint64_t> already_discovered_;

esphome/components/esp32_hosted/update/esp32_hosted_update.cpp

@@ -22,6 +22,11 @@ constexpr size_t CHUNK_SIZE = 1500;
 void Esp32HostedUpdate::setup() {
   this->update_info_.title = "ESP32 Hosted Coprocessor";
 
+  // if wifi is not present, connect to the coprocessor
+#ifndef USE_WIFI
+  esp_hosted_connect_to_slave();  // NOLINT
+#endif
+
   // get coprocessor version
   esp_hosted_coprocessor_fwver_t ver_info;
   if (esp_hosted_get_coprocessor_fwversion(&ver_info) == ESP_OK) {

esphome/components/espnow/espnow_component.cpp

@@ -10,6 +10,7 @@
 
 #include <esp_event.h>
 #include <esp_mac.h>
+#include <esp_netif.h>
 #include <esp_now.h>
 #include <esp_random.h>
 #include <esp_wifi.h>
@@ -157,6 +158,12 @@ bool ESPNowComponent::is_wifi_enabled() {
 }
 
 void ESPNowComponent::setup() {
+#ifndef USE_WIFI
+  // Initialize LwIP stack for wake_loop_threadsafe() socket support
+  // When WiFi component is present, it handles esp_netif_init()
+  ESP_ERROR_CHECK(esp_netif_init());
+#endif
+
   if (this->enable_on_boot_) {
     this->enable_();
   } else {

esphome/components/inkplate/display.py

@@ -6,10 +6,12 @@ import esphome.config_validation as cv
 from esphome.const import (
     CONF_FULL_UPDATE_EVERY,
     CONF_ID,
+    CONF_IGNORE_STRAPPING_WARNING,
     CONF_LAMBDA,
     CONF_MIRROR_X,
     CONF_MIRROR_Y,
     CONF_MODEL,
+    CONF_NUMBER,
     CONF_OE_PIN,
     CONF_PAGES,
     CONF_TRANSFORM,
@@ -101,14 +103,21 @@ CONFIG_SCHEMA = cv.All(
             cv.Required(CONF_SPV_PIN): pins.gpio_output_pin_schema,
             cv.Required(CONF_VCOM_PIN): pins.gpio_output_pin_schema,
             cv.Required(CONF_WAKEUP_PIN): pins.gpio_output_pin_schema,
-            cv.Optional(CONF_CL_PIN, default=0): pins.internal_gpio_output_pin_schema,
-            cv.Optional(CONF_LE_PIN, default=2): pins.internal_gpio_output_pin_schema,
+            cv.Optional(
+                CONF_CL_PIN,
+                default={CONF_NUMBER: 0, CONF_IGNORE_STRAPPING_WARNING: True},
+            ): pins.internal_gpio_output_pin_schema,
+            cv.Optional(
+                CONF_LE_PIN,
+                default={CONF_NUMBER: 2, CONF_IGNORE_STRAPPING_WARNING: True},
+            ): pins.internal_gpio_output_pin_schema,
             # Data pins
             cv.Optional(
                 CONF_DISPLAY_DATA_0_PIN, default=4
             ): pins.internal_gpio_output_pin_schema,
             cv.Optional(
-                CONF_DISPLAY_DATA_1_PIN, default=5
+                CONF_DISPLAY_DATA_1_PIN,
+                default={CONF_NUMBER: 5, CONF_IGNORE_STRAPPING_WARNING: True},
             ): pins.internal_gpio_output_pin_schema,
             cv.Optional(
                 CONF_DISPLAY_DATA_2_PIN, default=18

esphome/components/light/light_json_schema.cpp

@@ -7,30 +7,29 @@ namespace esphome::light {
 
 // See https://www.home-assistant.io/integrations/light.mqtt/#json-schema for documentation on the schema
 
-// Lookup table for color mode strings
-static constexpr const char *get_color_mode_json_str(ColorMode mode) {
-  switch (mode) {
-    case ColorMode::ON_OFF:
-      return "onoff";
-    case ColorMode::BRIGHTNESS:
-      return "brightness";
-    case ColorMode::WHITE:
-      return "white";  // not supported by HA in MQTT
-    case ColorMode::COLOR_TEMPERATURE:
-      return "color_temp";
-    case ColorMode::COLD_WARM_WHITE:
-      return "cwww";  // not supported by HA
-    case ColorMode::RGB:
-      return "rgb";
-    case ColorMode::RGB_WHITE:
-      return "rgbw";
-    case ColorMode::RGB_COLOR_TEMPERATURE:
-      return "rgbct";  // not supported by HA
-    case ColorMode::RGB_COLD_WARM_WHITE:
-      return "rgbww";
-    default:
-      return nullptr;
+// Get JSON string for color mode using linear search (avoids large switch jump table)
+static const char *get_color_mode_json_str(ColorMode mode) {
+  // Parallel arrays: mode values and their corresponding strings
+  // Uses less RAM than a switch jump table on sparse enum values
+  static constexpr ColorMode MODES[] = {
+      ColorMode::ON_OFF,
+      ColorMode::BRIGHTNESS,
+      ColorMode::WHITE,
+      ColorMode::COLOR_TEMPERATURE,
+      ColorMode::COLD_WARM_WHITE,
+      ColorMode::RGB,
+      ColorMode::RGB_WHITE,
+      ColorMode::RGB_COLOR_TEMPERATURE,
+      ColorMode::RGB_COLD_WARM_WHITE,
+  };
+  static constexpr const char *STRINGS[] = {
+      "onoff", "brightness", "white", "color_temp", "cwww", "rgb", "rgbw", "rgbct", "rgbww",
+  };
+  for (size_t i = 0; i < sizeof(MODES) / sizeof(MODES[0]); i++) {
+    if (MODES[i] == mode)
+      return STRINGS[i];
   }
+  return nullptr;
 }
 
 void LightJSONSchema::dump_json(LightState &state, JsonObject root) {

esphome/components/logger/__init__.py

@@ -406,6 +406,8 @@ async def to_code(config):
             conf,
         )
 
+    CORE.add_job(final_step)
+
 
 def validate_printf(value):
     # https://stackoverflow.com/questions/30011379/how-can-i-parse-a-c-format-string-in-python
@@ -506,3 +508,24 @@ FILTER_SOURCE_FILES = filter_source_files_from_platform(
         },
     }
 )
+
+# Keys for CORE.data storage
+DOMAIN = "logger"
+KEY_LEVEL_LISTENERS = "level_listeners"
+
+
+def request_logger_level_listeners() -> None:
+    """Request that logger level listeners be compiled in.
+
+    Components that need to be notified about log level changes should call this
+    function during their code generation. This enables the add_level_listener()
+    method and compiles in the listener vector.
+    """
+    CORE.data.setdefault(DOMAIN, {})[KEY_LEVEL_LISTENERS] = True
+
+
+@coroutine_with_priority(CoroPriority.FINAL)
+async def final_step():
+    """Final code generation step to configure optional logger features."""
+    if CORE.data.get(DOMAIN, {}).get(KEY_LEVEL_LISTENERS, False):
+        cg.add_define("USE_LOGGER_LEVEL_LISTENERS")

esphome/components/logger/logger.cpp

@@ -140,8 +140,9 @@ void Logger::log_vprintf_(uint8_t level, const char *tag, int line, const __Flas
   uint16_t msg_length =
       this->tx_buffer_at_ - msg_start;  // Don't subtract 1 - tx_buffer_at_ is already at the null terminator position
 
-  // Callbacks get message first (before console write)
-  this->log_callback_.call(level, tag, this->tx_buffer_ + msg_start, msg_length);
+  // Listeners get message first (before console write)
+  for (auto *listener : this->log_listeners_)
+    listener->on_log(level, tag, this->tx_buffer_ + msg_start, msg_length);
 
   // Write to console starting at the msg_start
   this->write_tx_buffer_to_console_(msg_start, &msg_length);
@@ -203,7 +204,8 @@ void Logger::process_messages_() {
       this->write_footer_to_buffer_(this->tx_buffer_, &this->tx_buffer_at_, this->tx_buffer_size_);
       this->tx_buffer_[this->tx_buffer_at_] = '\0';
       size_t msg_len = this->tx_buffer_at_;  // We already know the length from tx_buffer_at_
-      this->log_callback_.call(message->level, message->tag, this->tx_buffer_, msg_len);
+      for (auto *listener : this->log_listeners_)
+        listener->on_log(message->level, message->tag, this->tx_buffer_, msg_len);
       // At this point all the data we need from message has been transferred to the tx_buffer
       // so we can release the message to allow other tasks to use it as soon as possible.
       this->log_buffer_->release_message_main_loop(received_token);
@@ -231,9 +233,6 @@ void Logger::set_log_level(const char *tag, uint8_t log_level) { this->log_level
 UARTSelection Logger::get_uart() const { return this->uart_; }
 #endif
 
-void Logger::add_on_log_callback(std::function<void(uint8_t, const char *, const char *, size_t)> &&callback) {
-  this->log_callback_.add(std::move(callback));
-}
 float Logger::get_setup_priority() const { return setup_priority::BUS + 500.0f; }
 
 #ifdef USE_STORE_LOG_STR_IN_FLASH
@@ -289,7 +288,10 @@ void Logger::set_log_level(uint8_t level) {
     ESP_LOGW(TAG, "Cannot set log level higher than pre-compiled %s", LOG_STR_ARG(LOG_LEVELS[ESPHOME_LOG_LEVEL]));
   }
   this->current_level_ = level;
-  this->level_callback_.call(level);
+#ifdef USE_LOGGER_LEVEL_LISTENERS
+  for (auto *listener : this->level_listeners_)
+    listener->on_log_level_change(level);
+#endif
 }
 
 Logger *global_logger = nullptr;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)

esphome/components/logger/logger.h

@@ -36,6 +36,52 @@ struct device;
 
 namespace esphome::logger {
 
+/** Interface for receiving log messages without std::function overhead.
+ *
+ * Components can implement this interface instead of using lambdas with std::function
+ * to reduce flash usage from std::function type erasure machinery.
+ *
+ * Usage:
+ *   class MyComponent : public Component, public LogListener {
+ *    public:
+ *     void setup() override {
+ *       if (logger::global_logger != nullptr)
+ *         logger::global_logger->add_log_listener(this);
+ *     }
+ *     void on_log(uint8_t level, const char *tag, const char *message, size_t message_len) override {
+ *       // Handle log message
+ *     }
+ *   };
+ */
+class LogListener {
+ public:
+  virtual void on_log(uint8_t level, const char *tag, const char *message, size_t message_len) = 0;
+};
+
+#ifdef USE_LOGGER_LEVEL_LISTENERS
+/** Interface for receiving log level changes without std::function overhead.
+ *
+ * Components can implement this interface instead of using lambdas with std::function
+ * to reduce flash usage from std::function type erasure machinery.
+ *
+ * Usage:
+ *   class MyComponent : public Component, public LoggerLevelListener {
+ *    public:
+ *     void setup() override {
+ *       if (logger::global_logger != nullptr)
+ *         logger::global_logger->add_logger_level_listener(this);
+ *     }
+ *     void on_log_level_change(uint8_t level) override {
+ *       // Handle log level change
+ *     }
+ *   };
+ */
+class LoggerLevelListener {
+ public:
+  virtual void on_log_level_change(uint8_t level) = 0;
+};
+#endif
+
 #ifdef USE_LOGGER_RUNTIME_TAG_LEVELS
 // Comparison function for const char* keys in log_levels_ map
 struct CStrCompare {
@@ -168,11 +214,13 @@ class Logger : public Component {
 
   inline uint8_t level_for(const char *tag);
 
-  /// Register a callback that will be called for every log message sent
-  void add_on_log_callback(std::function<void(uint8_t, const char *, const char *, size_t)> &&callback);
+  /// Register a log listener to receive log messages
+  void add_log_listener(LogListener *listener) { this->log_listeners_.push_back(listener); }
 
-  // add a listener for log level changes
-  void add_listener(std::function<void(uint8_t)> &&callback) { this->level_callback_.add(std::move(callback)); }
+#ifdef USE_LOGGER_LEVEL_LISTENERS
+  /// Register a listener for log level changes
+  void add_level_listener(LoggerLevelListener *listener) { this->level_listeners_.push_back(listener); }
+#endif
 
   float get_setup_priority() const override;
 
@@ -240,7 +288,7 @@ class Logger : public Component {
     }
   }
 
-  // Helper to format and send a log message to both console and callbacks
+  // Helper to format and send a log message to both console and listeners
   inline void HOT log_message_to_buffer_and_send_(uint8_t level, const char *tag, int line, const char *format,
                                                   va_list args) {
     // Format to tx_buffer and prepare for output
@@ -248,8 +296,9 @@ class Logger : public Component {
     this->format_log_to_buffer_with_terminator_(level, tag, line, format, args, this->tx_buffer_, &this->tx_buffer_at_,
                                                 this->tx_buffer_size_);
 
-    // Callbacks get message WITHOUT newline (for API/MQTT/syslog)
-    this->log_callback_.call(level, tag, this->tx_buffer_, this->tx_buffer_at_);
+    // Listeners get message WITHOUT newline (for API/MQTT/syslog)
+    for (auto *listener : this->log_listeners_)
+      listener->on_log(level, tag, this->tx_buffer_, this->tx_buffer_at_);
 
     // Console gets message WITH newline (if platform needs it)
     this->write_tx_buffer_to_console_();
@@ -301,8 +350,10 @@ class Logger : public Component {
 #ifdef USE_LOGGER_RUNTIME_TAG_LEVELS
   std::map<const char *, uint8_t, CStrCompare> log_levels_{};
 #endif
-  CallbackManager<void(uint8_t, const char *, const char *, size_t)> log_callback_{};
-  CallbackManager<void(uint8_t)> level_callback_{};
+  std::vector<LogListener *> log_listeners_;  // Log message listeners (API, MQTT, syslog, etc.)
+#ifdef USE_LOGGER_LEVEL_LISTENERS
+  std::vector<LoggerLevelListener *> level_listeners_;  // Log level change listeners
+#endif
 #ifdef USE_ESPHOME_TASK_LOG_BUFFER
   std::unique_ptr<logger::TaskLogBuffer> log_buffer_;  // Will be initialized with init_log_buffer
 #endif
@@ -496,15 +547,15 @@ class Logger : public Component {
 };
 extern Logger *global_logger;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 
-class LoggerMessageTrigger : public Trigger<uint8_t, const char *, const char *> {
+class LoggerMessageTrigger : public Trigger<uint8_t, const char *, const char *>, public LogListener {
  public:
-  explicit LoggerMessageTrigger(Logger *parent, uint8_t level) {
-    this->level_ = level;
-    parent->add_on_log_callback([this](uint8_t level, const char *tag, const char *message, size_t message_len) {
-      if (level <= this->level_) {
-        this->trigger(level, tag, message);
-      }
-    });
+  explicit LoggerMessageTrigger(Logger *parent, uint8_t level) : level_(level) { parent->add_log_listener(this); }
+
+  void on_log(uint8_t level, const char *tag, const char *message, size_t message_len) override {
+    (void) message_len;
+    if (level <= this->level_) {
+      this->trigger(level, tag, message);
+    }
   }
 
  protected:

esphome/components/logger/select/__init__.py

@@ -5,7 +5,13 @@ from esphome.const import CONF_LEVEL, CONF_LOGGER, ENTITY_CATEGORY_CONFIG, ICON_
 from esphome.core import CORE
 from esphome.cpp_helpers import register_component, register_parented
 
-from .. import CONF_LOGGER_ID, LOG_LEVELS, Logger, logger_ns
+from .. import (
+    CONF_LOGGER_ID,
+    LOG_LEVELS,
+    Logger,
+    logger_ns,
+    request_logger_level_listeners,
+)
 
 CODEOWNERS = ["@clydebarrow"]
 
@@ -21,6 +27,7 @@ CONFIG_SCHEMA = select.select_schema(
 
 
 async def to_code(config):
+    request_logger_level_listeners()
     parent = await cg.get_variable(config[CONF_LOGGER_ID])
     levels = list(LOG_LEVELS)
     index = levels.index(CORE.data[CONF_LOGGER][CONF_LEVEL])

esphome/components/logger/select/logger_level_select.cpp

@@ -2,7 +2,7 @@
 
 namespace esphome::logger {
 
-void LoggerLevelSelect::publish_state(int level) {
+void LoggerLevelSelect::on_log_level_change(uint8_t level) {
   auto index = level_to_index(level);
   if (!this->has_index(index))
     return;
@@ -10,8 +10,8 @@ void LoggerLevelSelect::publish_state(int level) {
 }
 
 void LoggerLevelSelect::setup() {
-  this->parent_->add_listener([this](int level) { this->publish_state(level); });
-  this->publish_state(this->parent_->get_log_level());
+  this->parent_->add_level_listener(this);
+  this->on_log_level_change(this->parent_->get_log_level());
 }
 
 void LoggerLevelSelect::control(size_t index) { this->parent_->set_log_level(index_to_level(index)); }

esphome/components/logger/select/logger_level_select.h

@@ -5,12 +5,17 @@
 #include "esphome/components/logger/logger.h"
 
 namespace esphome::logger {
-class LoggerLevelSelect : public Component, public select::Select, public Parented<Logger> {
+class LoggerLevelSelect final : public Component,
+                                public select::Select,
+                                public Parented<Logger>,
+                                public LoggerLevelListener {
  public:
-  void publish_state(int level);
   void setup() override;
   void control(size_t index) override;
 
+  // LoggerLevelListener interface
+  void on_log_level_change(uint8_t level) override;
+
  protected:
   // Convert log level to option index (skip CONFIG at level 4)
   static uint8_t level_to_index(uint8_t level) { return (level > ESPHOME_LOG_LEVEL_CONFIG) ? level - 1 : level; }

esphome/components/lvgl/__init__.py

@@ -108,7 +108,7 @@ LV_CONF_H_FORMAT = """\
 
 
 def generate_lv_conf_h():
-    definitions = [as_macro(m, v) for m, v in df.lv_defines.items()]
+    definitions = [as_macro(m, v) for m, v in df.get_data(df.KEY_LV_DEFINES).items()]
     definitions.sort()
     return LV_CONF_H_FORMAT.format("\n".join(definitions))
 
@@ -140,11 +140,11 @@ def multi_conf_validate(configs: list[dict]):
                 )
 
 
-def final_validation(configs):
-    if len(configs) != 1:
-        multi_conf_validate(configs)
+def final_validation(config_list):
+    if len(config_list) != 1:
+        multi_conf_validate(config_list)
     global_config = full_config.get()
-    for config in configs:
+    for config in config_list:
         if (pages := config.get(CONF_PAGES)) and all(p[df.CONF_SKIP] for p in pages):
             raise cv.Invalid("At least one page must not be skipped")
         for display_id in config[df.CONF_DISPLAYS]:
@@ -190,6 +190,14 @@ def final_validation(configs):
                 raise cv.Invalid(
                     f"Widget '{w}' does not have any dynamic properties to refresh",
                 )
+        # Do per-widget type final validation for update actions
+        for widget_type, update_configs in df.get_data(df.KEY_UPDATED_WIDGETS).items():
+            for conf in update_configs:
+                for id_conf in conf.get(CONF_ID, ()):
+                    name = id_conf[CONF_ID]
+                    path = global_config.get_path_for_id(name)
+                    widget_conf = global_config.get_config_for_path(path[:-1])
+                    widget_type.final_validate(name, conf, widget_conf, path[1:])
 
 
 async def to_code(configs):
@@ -276,6 +284,7 @@ async def to_code(configs):
             config[df.CONF_FULL_REFRESH],
             config[CONF_DRAW_ROUNDING],
             config[df.CONF_RESUME_ON_INPUT],
+            config[df.CONF_UPDATE_WHEN_DISPLAY_IDLE],
         )
         await cg.register_component(lv_component, config)
         Widget.create(config[CONF_ID], lv_component, LvScrActType(), config)
@@ -373,6 +382,9 @@ LVGL_SCHEMA = cv.All(
                     df.CONF_DEFAULT_FONT, default="montserrat_14"
                 ): lvalid.lv_font,
                 cv.Optional(df.CONF_FULL_REFRESH, default=False): cv.boolean,
+                cv.Optional(
+                    df.CONF_UPDATE_WHEN_DISPLAY_IDLE, default=False
+                ): cv.boolean,
                 cv.Optional(CONF_DRAW_ROUNDING, default=2): cv.positive_int,
                 cv.Optional(CONF_BUFFER_SIZE, default=0): cv.percentage,
                 cv.Optional(CONF_LOG_LEVEL, default="WARN"): cv.one_of(

esphome/components/lvgl/defines.py

@@ -9,7 +9,7 @@ from typing import TYPE_CHECKING, Any
 
 from esphome import codegen as cg, config_validation as cv
 from esphome.const import CONF_ITEMS
-from esphome.core import ID, Lambda
+from esphome.core import CORE, ID, Lambda
 from esphome.cpp_generator import LambdaExpression, MockObj
 from esphome.cpp_types import uint32
 from esphome.schema_extractors import SCHEMA_EXTRACT, schema_extractor
@@ -20,11 +20,27 @@ from .helpers import requires_component
 LOGGER = logging.getLogger(__name__)
 lvgl_ns = cg.esphome_ns.namespace("lvgl")
 
-lv_defines = {}  # Dict of #defines to provide as build flags
+DOMAIN = "lvgl"
+KEY_LV_DEFINES = "lv_defines"
+KEY_UPDATED_WIDGETS = "updated_widgets"
+
+
+def get_data(key, default=None):
+    """
+    Get a data structure from the global data store by key
+    :param key: A key for the data
+    :param default: The default data - the default is an empty dict
+    :return:
+    """
+    return CORE.data.setdefault(DOMAIN, {}).setdefault(
+        key, default if default is not None else {}
+    )
 
 
 def add_define(macro, value="1"):
-    if macro in lv_defines and lv_defines[macro] != value:
+    lv_defines = get_data(KEY_LV_DEFINES)
+    value = str(value)
+    if lv_defines.setdefault(macro, value) != value:
         LOGGER.error(
             "Redefinition of %s - was %s now %s", macro, lv_defines[macro], value
         )
@@ -279,6 +295,8 @@ KEYBOARD_MODES = LvConstant(
 )
 ROLLER_MODES = LvConstant("LV_ROLLER_MODE_", "NORMAL", "INFINITE")
 TILE_DIRECTIONS = DIRECTIONS.extend("HOR", "VER", "ALL")
+SCROLL_DIRECTIONS = TILE_DIRECTIONS.extend("NONE")
+SNAP_DIRECTIONS = LvConstant("LV_SCROLL_SNAP_", "NONE", "START", "END", "CENTER")
 CHILD_ALIGNMENTS = LvConstant(
     "LV_ALIGN_",
     "TOP_LEFT",
@@ -511,6 +529,9 @@ CONF_ROLLOVER = "rollover"
 CONF_ROOT_BACK_BTN = "root_back_btn"
 CONF_SCALE_LINES = "scale_lines"
 CONF_SCROLLBAR_MODE = "scrollbar_mode"
+CONF_SCROLL_DIR = "scroll_dir"
+CONF_SCROLL_SNAP_X = "scroll_snap_x"
+CONF_SCROLL_SNAP_Y = "scroll_snap_y"
 CONF_SELECTED_INDEX = "selected_index"
 CONF_SELECTED_TEXT = "selected_text"
 CONF_SHOW_SNOW = "show_snow"
@@ -537,6 +558,7 @@ CONF_TOUCHSCREENS = "touchscreens"
 CONF_TRANSPARENCY_KEY = "transparency_key"
 CONF_THEME = "theme"
 CONF_UPDATE_ON_RELEASE = "update_on_release"
+CONF_UPDATE_WHEN_DISPLAY_IDLE = "update_when_display_idle"
 CONF_VISIBLE_ROW_COUNT = "visible_row_count"
 CONF_WIDGET = "widget"
 CONF_WIDGETS = "widgets"

esphome/components/lvgl/layout.py

@@ -172,10 +172,14 @@ class DirectionalLayout(FlexLayout):
 
     def validate(self, config):
         assert config[CONF_LAYOUT].lower() == self.direction
-        config[CONF_LAYOUT] = {
+        layout = {
             **FLEX_HV_STYLE,
             CONF_FLEX_FLOW: "LV_FLEX_FLOW_" + self.flow.upper(),
         }
+        if pad_all := config.get("pad_all"):
+            layout[CONF_PAD_ROW] = pad_all
+            layout[CONF_PAD_COLUMN] = pad_all
+        config[CONF_LAYOUT] = layout
         return config
 
 

esphome/components/lvgl/lv_validation.py

@@ -40,7 +40,7 @@ from .helpers import (
     lv_fonts_used,
     requires_component,
 )
-from .types import lv_font_t, lv_gradient_t
+from .types import lv_gradient_t
 
 opacity_consts = LvConstant("LV_OPA_", "TRANSP", "COVER")
 
@@ -498,7 +498,9 @@ class LvFont(LValidator):
             esphome_fonts_used.add(fontval)
             return requires_component("font")(fontval)
 
-        super().__init__(validator, lv_font_t)
+        # Use font::Font* as return type for lambdas returning ESPHome fonts
+        # The inline overloads in lvgl_esphome.h handle conversion to lv_font_t*
+        super().__init__(validator, Font.operator("ptr"))
 
     async def process(self, value, args=()):
         if is_lv_font(value):

esphome/components/lvgl/lvgl_esphome.cpp

@@ -106,6 +106,7 @@ void LvglComponent::dump_config() {
                 this->disp_drv_.hor_res, this->disp_drv_.ver_res, 100 / this->buffer_frac_, this->rotation,
                 (int) this->draw_rounding);
 }
+
 void LvglComponent::set_paused(bool paused, bool show_snow) {
   this->paused_ = paused;
   this->show_snow_ = show_snow;
@@ -124,32 +125,38 @@ void LvglComponent::esphome_lvgl_init() {
   lv_update_event = static_cast<lv_event_code_t>(lv_event_register_id());
   lv_api_event = static_cast<lv_event_code_t>(lv_event_register_id());
 }
+
 void LvglComponent::add_event_cb(lv_obj_t *obj, event_callback_t callback, lv_event_code_t event) {
   lv_obj_add_event_cb(obj, callback, event, nullptr);
 }
+
 void LvglComponent::add_event_cb(lv_obj_t *obj, event_callback_t callback, lv_event_code_t event1,
                                  lv_event_code_t event2) {
   add_event_cb(obj, callback, event1);
   add_event_cb(obj, callback, event2);
 }
+
 void LvglComponent::add_event_cb(lv_obj_t *obj, event_callback_t callback, lv_event_code_t event1,
                                  lv_event_code_t event2, lv_event_code_t event3) {
   add_event_cb(obj, callback, event1);
   add_event_cb(obj, callback, event2);
   add_event_cb(obj, callback, event3);
 }
+
 void LvglComponent::add_page(LvPageType *page) {
   this->pages_.push_back(page);
   page->set_parent(this);
   lv_disp_set_default(this->disp_);
   page->setup(this->pages_.size() - 1);
 }
+
 void LvglComponent::show_page(size_t index, lv_scr_load_anim_t anim, uint32_t time) {
   if (index >= this->pages_.size())
     return;
   this->current_page_ = index;
   lv_scr_load_anim(this->pages_[this->current_page_]->obj, anim, time, 0, false);
 }
+
 void LvglComponent::show_next_page(lv_scr_load_anim_t anim, uint32_t time) {
   if (this->pages_.empty() || (this->current_page_ == this->pages_.size() - 1 && !this->page_wrap_))
     return;
@@ -158,6 +165,7 @@ void LvglComponent::show_next_page(lv_scr_load_anim_t anim, uint32_t time) {
   } while (this->pages_[this->current_page_]->skip);  // skip empty pages()
   this->show_page(this->current_page_, anim, time);
 }
+
 void LvglComponent::show_prev_page(lv_scr_load_anim_t anim, uint32_t time) {
   if (this->pages_.empty() || (this->current_page_ == 0 && !this->page_wrap_))
     return;
@@ -166,8 +174,10 @@ void LvglComponent::show_prev_page(lv_scr_load_anim_t anim, uint32_t time) {
   } while (this->pages_[this->current_page_]->skip);  // skip empty pages()
   this->show_page(this->current_page_, anim, time);
 }
+
 size_t LvglComponent::get_current_page() const { return this->current_page_; }
 bool LvPageType::is_showing() const { return this->parent_->get_current_page() == this->index; }
+
 void LvglComponent::draw_buffer_(const lv_area_t *area, lv_color_t *ptr) {
   auto width = lv_area_get_width(area);
   auto height = lv_area_get_height(area);
@@ -222,7 +232,7 @@ void LvglComponent::draw_buffer_(const lv_area_t *area, lv_color_t *ptr) {
 }
 
 void LvglComponent::flush_cb_(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p) {
-  if (!this->paused_) {
+  if (!this->is_paused()) {
     auto now = millis();
     this->draw_buffer_(area, color_p);
     ESP_LOGVV(TAG, "flush_cb, area=%d/%d, %d/%d took %dms", area->x1, area->y1, lv_area_get_width(area),
@@ -230,6 +240,7 @@ void LvglComponent::flush_cb_(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv
   }
   lv_disp_flush_ready(disp_drv);
 }
+
 IdleTrigger::IdleTrigger(LvglComponent *parent, TemplatableValue<uint32_t> timeout) : timeout_(std::move(timeout)) {
   parent->add_on_idle_callback([this](uint32_t idle_time) {
     if (!this->is_idle_ && idle_time > this->timeout_.value()) {
@@ -377,6 +388,27 @@ void LvKeyboardType::set_obj(lv_obj_t *lv_obj) {
 }
 #endif  // USE_LVGL_KEYBOARD
 
+void LvglComponent::draw_end_() {
+  if (this->draw_end_callback_ != nullptr)
+    this->draw_end_callback_->trigger();
+  if (this->update_when_display_idle_) {
+    for (auto *disp : this->displays_)
+      disp->update();
+  }
+}
+
+bool LvglComponent::is_paused() const {
+  if (this->paused_)
+    return true;
+  if (this->update_when_display_idle_) {
+    for (auto *disp : this->displays_) {
+      if (!disp->is_idle())
+        return true;
+    }
+  }
+  return false;
+}
+
 void LvglComponent::write_random_() {
   int iterations = 6 - lv_disp_get_inactive_time(this->disp_) / 60000;
   if (iterations <= 0)
@@ -426,12 +458,13 @@ void LvglComponent::write_random_() {
  *                         presses a key or clicks on the screen.
  */
 LvglComponent::LvglComponent(std::vector<display::Display *> displays, float buffer_frac, bool full_refresh,
-                             int draw_rounding, bool resume_on_input)
+                             int draw_rounding, bool resume_on_input, bool update_when_display_idle)
     : draw_rounding(draw_rounding),
       displays_(std::move(displays)),
       buffer_frac_(buffer_frac),
       full_refresh_(full_refresh),
-      resume_on_input_(resume_on_input) {
+      resume_on_input_(resume_on_input),
+      update_when_display_idle_(update_when_display_idle) {
   lv_disp_draw_buf_init(&this->draw_buf_, nullptr, nullptr, 0);
   lv_disp_drv_init(&this->disp_drv_);
   this->disp_drv_.draw_buf = &this->draw_buf_;
@@ -487,7 +520,7 @@ void LvglComponent::setup() {
   if (this->draw_start_callback_ != nullptr) {
     this->disp_drv_.render_start_cb = render_start_cb;
   }
-  if (this->draw_end_callback_ != nullptr) {
+  if (this->draw_end_callback_ != nullptr || this->update_when_display_idle_) {
     this->disp_drv_.monitor_cb = monitor_cb;
   }
 #if LV_USE_LOG
@@ -509,14 +542,15 @@ void LvglComponent::setup() {
 
 void LvglComponent::update() {
   // update indicators
-  if (this->paused_) {
+  if (this->is_paused()) {
     return;
   }
   this->idle_callbacks_.call(lv_disp_get_inactive_time(this->disp_));
 }
+
 void LvglComponent::loop() {
-  if (this->paused_) {
-    if (this->show_snow_)
+  if (this->is_paused()) {
+    if (this->paused_ && this->show_snow_)
       this->write_random_();
   } else {
     lv_timer_handler_run_in_period(5);

esphome/components/lvgl/lvgl_esphome.h

@@ -151,7 +151,7 @@ class LvglComponent : public PollingComponent {
 
  public:
   LvglComponent(std::vector<display::Display *> displays, float buffer_frac, bool full_refresh, int draw_rounding,
-                bool resume_on_input);
+                bool resume_on_input, bool update_when_display_idle);
   static void static_flush_cb(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p);
 
   float get_setup_priority() const override { return setup_priority::PROCESSOR; }
@@ -171,7 +171,9 @@ class LvglComponent : public PollingComponent {
   // @param paused If true, pause the display. If false, resume the display.
   // @param show_snow If true, show the snow effect when paused.
   void set_paused(bool paused, bool show_snow);
-  bool is_paused() const { return this->paused_; }
+
+  // Returns true if the display is explicitly paused, or a blocking display update is in progress.
+  bool is_paused() const;
   // If the display is paused and we have resume_on_input_ set to true, resume the display.
   void maybe_wakeup() {
     if (this->paused_ && this->resume_on_input_) {
@@ -210,10 +212,10 @@ class LvglComponent : public PollingComponent {
   void set_draw_end_trigger(Trigger<> *trigger) { this->draw_end_callback_ = trigger; }
 
  protected:
-  // these functions are never called unless the callbacks are non-null since the
-  // LVGL callbacks that call them are not set unless the start/end callbacks are non-null
+  void draw_end_();
+  // Not checking for non-null callback since the
+  // LVGL callback that calls it is not set in that case
   void draw_start_() const { this->draw_start_callback_->trigger(); }
-  void draw_end_() const { this->draw_end_callback_->trigger(); }
 
   void write_random_();
   void draw_buffer_(const lv_area_t *area, lv_color_t *ptr);
@@ -222,6 +224,7 @@ class LvglComponent : public PollingComponent {
   size_t buffer_frac_{1};
   bool full_refresh_{};
   bool resume_on_input_{};
+  bool update_when_display_idle_{};
 
   lv_disp_draw_buf_t draw_buf_{};
   lv_disp_drv_t disp_drv_{};

esphome/components/lvgl/schemas.py

@@ -1,6 +1,9 @@
+from collections.abc import Callable
+
 from esphome import config_validation as cv
 from esphome.automation import Trigger, validate_automation
 from esphome.components.time import RealTimeClock
+from esphome.config_validation import prepend_path
 from esphome.const import (
     CONF_ARGS,
     CONF_FORMAT,
@@ -19,7 +22,14 @@ from esphome.core import TimePeriod
 from esphome.core.config import StartupTrigger
 
 from . import defines as df, lv_validation as lvalid
-from .defines import CONF_TIME_FORMAT, LV_GRAD_DIR
+from .defines import (
+    CONF_SCROLL_DIR,
+    CONF_SCROLL_SNAP_X,
+    CONF_SCROLL_SNAP_Y,
+    CONF_SCROLLBAR_MODE,
+    CONF_TIME_FORMAT,
+    LV_GRAD_DIR,
+)
 from .helpers import CONF_IF_NAN, requires_component, validate_printf
 from .layout import (
     FLEX_OBJ_SCHEMA,
@@ -233,9 +243,19 @@ STYLE_SCHEMA = cv.Schema({cv.Optional(k): v for k, v in STYLE_PROPS.items()}).ex
         cv.Optional(df.CONF_SCROLLBAR_MODE): df.LvConstant(
             "LV_SCROLLBAR_MODE_", "OFF", "ON", "ACTIVE", "AUTO"
         ).one_of,
+        cv.Optional(CONF_SCROLL_DIR): df.SCROLL_DIRECTIONS.one_of,
+        cv.Optional(CONF_SCROLL_SNAP_X): df.SNAP_DIRECTIONS.one_of,
+        cv.Optional(CONF_SCROLL_SNAP_Y): df.SNAP_DIRECTIONS.one_of,
     }
 )
 
+OBJ_PROPERTIES = {
+    CONF_SCROLL_SNAP_X,
+    CONF_SCROLL_SNAP_Y,
+    CONF_SCROLL_DIR,
+    CONF_SCROLLBAR_MODE,
+}
+
 # Also allow widget specific properties for use in style definitions
 FULL_STYLE_SCHEMA = STYLE_SCHEMA.extend(
     {
@@ -293,19 +313,36 @@ def automation_schema(typ: LvType):
     }
 
 
-def base_update_schema(widget_type, parts):
+def _update_widget(widget_type: WidgetType) -> Callable[[dict], dict]:
     """
-    Create a schema for updating a widgets style properties, states and flags
+    During validation of update actions, create a map of action types to affected widgets
+    for use in final validation.
+    :param widget_type:
+    :return:
+    """
+
+    def validator(value: dict) -> dict:
+        df.get_data(df.KEY_UPDATED_WIDGETS).setdefault(widget_type, []).append(value)
+        return value
+
+    return validator
+
+
+def base_update_schema(widget_type: WidgetType | LvType, parts):
+    """
+    Create a schema for updating a widget's style properties, states and flags.
     :param widget_type: The type of the ID
     :param parts:  The allowable parts to specify
     :return:
     """
-    return part_schema(parts).extend(
+
+    w_type = widget_type.w_type if isinstance(widget_type, WidgetType) else widget_type
+    schema = part_schema(parts).extend(
         {
             cv.Required(CONF_ID): cv.ensure_list(
                 cv.maybe_simple_value(
                     {
-                        cv.Required(CONF_ID): cv.use_id(widget_type),
+                        cv.Required(CONF_ID): cv.use_id(w_type),
                     },
                     key=CONF_ID,
                 )
@@ -314,11 +351,9 @@ def base_update_schema(widget_type, parts):
         }
     )
 
-
-def create_modify_schema(widget_type):
-    return base_update_schema(widget_type.w_type, widget_type.parts).extend(
-        widget_type.modify_schema
-    )
+    if isinstance(widget_type, WidgetType):
+        schema.add_extra(_update_widget(widget_type))
+    return schema
 
 
 def obj_schema(widget_type: WidgetType):
@@ -422,7 +457,10 @@ def any_widget_schema(extras=None):
     def validator(value):
         if isinstance(value, dict):
             # Convert to list
+            is_dict = True
             value = [{k: v} for k, v in value.items()]
+        else:
+            is_dict = False
         if not isinstance(value, list):
             raise cv.Invalid("Expected a list of widgets")
         result = []
@@ -443,7 +481,9 @@ def any_widget_schema(extras=None):
                 )
             # Apply custom validation
             value = widget_type.validate(value or {})
-            result.append({key: container_validator(value)})
+            path = [key] if is_dict else [index, key]
+            with prepend_path(path):
+                result.append({key: container_validator(value)})
         return result
 
     return validator

esphome/components/lvgl/types.py

@@ -152,18 +152,18 @@ class WidgetType:
 
         # Local import to avoid circular import
         from .automation import update_to_code
-        from .schemas import WIDGET_TYPES, create_modify_schema
+        from .schemas import WIDGET_TYPES, base_update_schema
 
         if not is_mock:
             if self.name in WIDGET_TYPES:
                 raise EsphomeError(f"Duplicate definition of widget type '{self.name}'")
             WIDGET_TYPES[self.name] = self
 
-            # Register the update action automatically
+            # Register the update action automatically, adding widget-specific properties
             register_action(
                 f"lvgl.{self.name}.update",
                 ObjUpdateAction,
-                create_modify_schema(self),
+                base_update_schema(self, self.parts).extend(self.modify_schema),
             )(update_to_code)
 
     @property
@@ -182,7 +182,6 @@ class WidgetType:
         Generate code for a given widget
         :param w: The widget
         :param config: Its configuration
-        :return: Generated code as a list of text lines
         """
 
     async def obj_creator(self, parent: MockObjClass, config: dict):
@@ -228,6 +227,15 @@ class WidgetType:
         """
         return value
 
+    def final_validate(self, widget, update_config, widget_config, path):
+        """
+        Allow final validation for a given widget type update action
+        :param widget: A widget
+        :param update_config: The configuration for the update action
+        :param widget_config: The configuration for the widget itself
+        :param path: The path to the widget, for error reporting
+        """
+
 
 class NumberType(WidgetType):
     def get_max(self, config: dict):

esphome/components/lvgl/widgets/__init__.py

@@ -21,7 +21,6 @@ from ..defines import (
     CONF_MAIN,
     CONF_PAD_COLUMN,
     CONF_PAD_ROW,
-    CONF_SCROLLBAR_MODE,
     CONF_STYLES,
     CONF_WIDGETS,
     OBJ_FLAGS,
@@ -45,7 +44,7 @@ from ..lvcode import (
     lv_obj,
     lv_Pvariable,
 )
-from ..schemas import ALL_STYLES, STYLE_REMAP, WIDGET_TYPES
+from ..schemas import ALL_STYLES, OBJ_PROPERTIES, STYLE_REMAP, WIDGET_TYPES
 from ..types import LV_STATE, LvType, WidgetType, lv_coord_t, lv_obj_t, lv_obj_t_ptr
 
 EVENT_LAMB = "event_lamb__"
@@ -383,7 +382,7 @@ async def set_obj_properties(w: Widget, config):
         clrs = join_enums(flag_clr, "LV_OBJ_FLAG_")
         w.clear_flag(clrs)
     for key, value in lambs.items():
-        lamb = await cg.process_lambda(value, [], return_type=cg.bool_)
+        lamb = await cg.process_lambda(value, [], capture="=", return_type=cg.bool_)
         flag = f"LV_OBJ_FLAG_{key.upper()}"
         with LvConditional(call_lambda(lamb)) as cond:
             w.add_flag(flag)
@@ -408,13 +407,14 @@ async def set_obj_properties(w: Widget, config):
             clears = join_enums(clears, "LV_STATE_")
             w.clear_state(clears)
         for key, value in lambs.items():
-            lamb = await cg.process_lambda(value, [], return_type=cg.bool_)
+            lamb = await cg.process_lambda(value, [], capture="=", return_type=cg.bool_)
             state = f"LV_STATE_{key.upper()}"
             with LvConditional(call_lambda(lamb)) as cond:
                 w.add_state(state)
                 cond.else_()
                 w.clear_state(state)
-    await w.set_property(CONF_SCROLLBAR_MODE, config, lv_name="obj")
+    for property in OBJ_PROPERTIES:
+        await w.set_property(property, config, lv_name="obj")
 
 
 async def add_widgets(parent: Widget, config: dict):

esphome/components/lvgl/widgets/button.py

@@ -1,20 +1,52 @@
-from esphome.const import CONF_BUTTON
+from esphome import config_validation as cv
+from esphome.const import CONF_BUTTON, CONF_TEXT
+from esphome.cpp_generator import MockObj
 
-from ..defines import CONF_MAIN
+from ..defines import CONF_MAIN, CONF_WIDGETS
+from ..helpers import add_lv_use
+from ..lv_validation import lv_text
+from ..lvcode import lv, lv_expr
+from ..schemas import TEXT_SCHEMA
 from ..types import LvBoolean, WidgetType
+from . import Widget
+from .label import label_spec
 
 lv_button_t = LvBoolean("lv_btn_t")
 
 
 class ButtonType(WidgetType):
     def __init__(self):
-        super().__init__(CONF_BUTTON, lv_button_t, (CONF_MAIN,), lv_name="btn")
+        super().__init__(
+            CONF_BUTTON, lv_button_t, (CONF_MAIN,), schema=TEXT_SCHEMA, lv_name="btn"
+        )
+
+    def validate(self, value):
+        if CONF_TEXT in value:
+            if CONF_WIDGETS in value:
+                raise cv.Invalid("Cannot use both text and widgets in a button")
+            add_lv_use("label")
+        return value
 
     def get_uses(self):
         return ("btn",)
 
-    async def to_code(self, w, config):
-        return []
+    def on_create(self, var: MockObj, config: dict):
+        if CONF_TEXT in config:
+            lv.label_create(var)
+        return var
+
+    async def to_code(self, w: Widget, config):
+        if text := config.get(CONF_TEXT):
+            label_widget = Widget.create(
+                None, lv_expr.obj_get_child(w.obj, 0), label_spec
+            )
+            await label_widget.set_property(CONF_TEXT, await lv_text.process(text))
+
+    def final_validate(self, widget, update_config, widget_config, path):
+        if CONF_TEXT in update_config and CONF_TEXT not in widget_config:
+            raise cv.Invalid(
+                "Button must have 'text:' configured to allow updating text", path
+            )
 
 
 button_spec = ButtonType()

esphome/components/lvgl/widgets/line.py

@@ -6,7 +6,7 @@ from esphome.core import Lambda
 from ..defines import CONF_MAIN, call_lambda
 from ..lvcode import lv_add
 from ..schemas import point_schema
-from ..types import LvCompound, LvType
+from ..types import LvCompound, LvType, lv_coord_t
 from . import Widget, WidgetType
 
 CONF_LINE = "line"
@@ -23,9 +23,7 @@ LINE_SCHEMA = {
 
 async def process_coord(coord):
     if isinstance(coord, Lambda):
-        coord = call_lambda(
-            await cg.process_lambda(coord, [], return_type="lv_coord_t")
-        )
+        coord = call_lambda(await cg.process_lambda(coord, [], return_type=lv_coord_t))
         if not coord.endswith("()"):
             coord = f"static_cast<lv_coord_t>({coord})"
         return cg.RawExpression(coord)

esphome/components/mqtt/mqtt_client.cpp

@@ -57,15 +57,7 @@ void MQTTClientComponent::setup() {
   });
 #ifdef USE_LOGGER
   if (this->is_log_message_enabled() && logger::global_logger != nullptr) {
-    logger::global_logger->add_on_log_callback(
-        [this](int level, const char *tag, const char *message, size_t message_len) {
-          if (level <= this->log_level_ && this->is_connected()) {
-            this->publish({.topic = this->log_message_.topic,
-                           .payload = std::string(message, message_len),
-                           .qos = this->log_message_.qos,
-                           .retain = this->log_message_.retain});
-          }
-        });
+    logger::global_logger->add_log_listener(this);
   }
 #endif
 
@@ -148,6 +140,18 @@ void MQTTClientComponent::send_device_info_() {
   // NOLINTEND(clang-analyzer-cplusplus.NewDeleteLeaks)
 }
 
+#ifdef USE_LOGGER
+void MQTTClientComponent::on_log(uint8_t level, const char *tag, const char *message, size_t message_len) {
+  (void) tag;
+  if (level <= this->log_level_ && this->is_connected()) {
+    this->publish({.topic = this->log_message_.topic,
+                   .payload = std::string(message, message_len),
+                   .qos = this->log_message_.qos,
+                   .retain = this->log_message_.retain});
+  }
+}
+#endif
+
 void MQTTClientComponent::dump_config() {
   ESP_LOGCONFIG(TAG,
                 "MQTT:\n"

esphome/components/mqtt/mqtt_client.h

@@ -10,6 +10,9 @@
 #include "esphome/core/component.h"
 #include "esphome/core/helpers.h"
 #include "esphome/core/log.h"
+#ifdef USE_LOGGER
+#include "esphome/components/logger/logger.h"
+#endif
 #if defined(USE_ESP32)
 #include "mqtt_backend_esp32.h"
 #elif defined(USE_ESP8266)
@@ -97,7 +100,12 @@ enum MQTTClientState {
 
 class MQTTComponent;
 
-class MQTTClientComponent : public Component {
+class MQTTClientComponent : public Component
+#ifdef USE_LOGGER
+    ,
+                            public logger::LogListener
+#endif
+{
  public:
   MQTTClientComponent();
 
@@ -238,6 +246,10 @@ class MQTTClientComponent : public Component {
   /// MQTT client setup priority
   float get_setup_priority() const override;
 
+#ifdef USE_LOGGER
+  void on_log(uint8_t level, const char *tag, const char *message, size_t message_len) override;
+#endif
+
   void on_message(const std::string &topic, const std::string &payload);
 
   bool can_proceed() override;

esphome/components/packages/__init__.py

@@ -1,7 +1,9 @@
+import logging
 from pathlib import Path
 
 from esphome import git, yaml_util
-from esphome.config_helpers import merge_config
+from esphome.components.substitutions.jinja import has_jinja
+from esphome.config_helpers import Remove, merge_config
 import esphome.config_validation as cv
 from esphome.const import (
     CONF_ESPHOME,
@@ -20,18 +22,46 @@ from esphome.const import (
 )
 from esphome.core import EsphomeError
 
+_LOGGER = logging.getLogger(__name__)
+
 DOMAIN = CONF_PACKAGES
 
 
-def validate_git_package(config: dict):
-    if CONF_URL not in config:
-        return config
-    config = BASE_SCHEMA(config)
-    new_config = config
+def valid_package_contents(package_config: dict):
+    """Validates that a package_config that will be merged looks as much as possible to a valid config
+    to fail early on obvious mistakes."""
+    if isinstance(package_config, dict):
+        if CONF_URL in package_config:
+            # If a URL key is found, then make sure the config conforms to a remote package schema:
+            return REMOTE_PACKAGE_SCHEMA(package_config)
+
+        # Validate manually since Voluptuous would regenerate dicts and lose metadata
+        # such as ESPHomeDataBase
+        for k, v in package_config.items():
+            if not isinstance(k, str):
+                raise cv.Invalid("Package content keys must be strings")
+            if isinstance(v, (dict, list, Remove)):
+                continue  # e.g. script: [], psram: !remove, logger: {level: debug}
+            if v is None:
+                continue  # e.g. web_server:
+            if isinstance(v, str) and has_jinja(v):
+                # e.g: remote package shorthand:
+                # package_name: github://esphome/repo/file.yaml@${ branch }
+                continue
+
+            raise cv.Invalid("Invalid component content in package definition")
+        return package_config
+
+    raise cv.Invalid("Package contents must be a dict")
+
+
+def expand_file_to_files(config: dict):
     if CONF_FILE in config:
+        new_config = config
         new_config[CONF_FILES] = [config[CONF_FILE]]
         del new_config[CONF_FILE]
-    return new_config
+        return new_config
+    return config
 
 
 def validate_yaml_filename(value):
@@ -45,7 +75,7 @@ def validate_yaml_filename(value):
 
 def validate_source_shorthand(value):
     if not isinstance(value, str):
-        raise cv.Invalid("Shorthand only for strings")
+        raise cv.Invalid("Git URL shorthand only for strings")
 
     git_file = git.GitFile.from_shorthand(value)
 
@@ -56,10 +86,17 @@ def validate_source_shorthand(value):
     if git_file.ref:
         conf[CONF_REF] = git_file.ref
 
-    return BASE_SCHEMA(conf)
+    return REMOTE_PACKAGE_SCHEMA(conf)
 
 
-BASE_SCHEMA = cv.All(
+def deprecate_single_package(config):
+    _LOGGER.warning(
+        "Including a single package under `packages:` is deprecated. Use a list instead."
+    )
+    return config
+
+
+REMOTE_PACKAGE_SCHEMA = cv.All(
     cv.Schema(
         {
             cv.Required(CONF_URL): cv.url,
@@ -90,23 +127,30 @@ BASE_SCHEMA = cv.All(
         }
     ),
     cv.has_at_least_one_key(CONF_FILE, CONF_FILES),
+    expand_file_to_files,
 )
 
-PACKAGE_SCHEMA = cv.All(
-    cv.Any(validate_source_shorthand, BASE_SCHEMA, dict), validate_git_package
+PACKAGE_SCHEMA = cv.Any(  # A package definition is either:
+    validate_source_shorthand,  # A git URL shorthand string that expands to a remote package schema, or
+    REMOTE_PACKAGE_SCHEMA,  # a valid remote package schema, or
+    valid_package_contents,  # Something that at least looks like an actual package, e.g. {wifi:{ssid: xxx}}
+    # which will have to be fully validated later as per each component's schema.
 )
 
-CONFIG_SCHEMA = cv.Any(
+CONFIG_SCHEMA = cv.Any(  # under `packages:` we can have either:
     cv.Schema(
         {
-            str: PACKAGE_SCHEMA,
+            str: PACKAGE_SCHEMA,  # a named dict of package definitions, or
         }
     ),
-    [PACKAGE_SCHEMA],
+    [PACKAGE_SCHEMA],  # a list of package definitions, or
+    cv.All(  # a single package definition (deprecated)
+        cv.ensure_list(PACKAGE_SCHEMA), deprecate_single_package
+    ),
 )
 
 
-def _process_base_package(config: dict, skip_update: bool = False) -> dict:
+def _process_remote_package(config: dict, skip_update: bool = False) -> dict:
     # When skip_update is True, use NEVER_REFRESH to prevent updates
     actual_refresh = git.NEVER_REFRESH if skip_update else config[CONF_REFRESH]
     repo_dir, revert = git.clone_or_update(
@@ -185,7 +229,7 @@ def _process_base_package(config: dict, skip_update: bool = False) -> dict:
 def _process_package(package_config, config, skip_update: bool = False):
     recursive_package = package_config
     if CONF_URL in package_config:
-        package_config = _process_base_package(package_config, skip_update)
+        package_config = _process_remote_package(package_config, skip_update)
     if isinstance(package_config, dict):
         recursive_package = do_packages_pass(package_config, skip_update)
     return merge_config(recursive_package, config)

esphome/components/prometheus/prometheus_handler.cpp

@@ -141,6 +141,24 @@ void PrometheusHandler::add_friendly_name_label_(AsyncResponseStream *stream, st
   }
 }
 
+#ifdef USE_ESP8266
+void PrometheusHandler::print_metric_labels_(AsyncResponseStream *stream, const __FlashStringHelper *metric_name,
+                                             EntityBase *obj, std::string &area, std::string &node,
+                                             std::string &friendly_name) {
+#else
+void PrometheusHandler::print_metric_labels_(AsyncResponseStream *stream, const char *metric_name, EntityBase *obj,
+                                             std::string &area, std::string &node, std::string &friendly_name) {
+#endif
+  stream->print(metric_name);
+  stream->print(ESPHOME_F("{id=\""));
+  stream->print(relabel_id_(obj).c_str());
+  add_area_label_(stream, area);
+  add_node_label_(stream, node);
+  add_friendly_name_label_(stream, friendly_name);
+  stream->print(ESPHOME_F("\",name=\""));
+  stream->print(relabel_name_(obj).c_str());
+}
+
 // Type-specific implementation
 #ifdef USE_SENSOR
 void PrometheusHandler::sensor_type_(AsyncResponseStream *stream) {
@@ -303,13 +321,7 @@ void PrometheusHandler::light_row_(AsyncResponseStream *stream, light::LightStat
   if (obj->is_internal() && !this->include_internal_)
     return;
   // State
-  stream->print(ESPHOME_F("esphome_light_state{id=\""));
-  stream->print(relabel_id_(obj).c_str());
-  add_area_label_(stream, area);
-  add_node_label_(stream, node);
-  add_friendly_name_label_(stream, friendly_name);
-  stream->print(ESPHOME_F("\",name=\""));
-  stream->print(relabel_name_(obj).c_str());
+  print_metric_labels_(stream, ESPHOME_F("esphome_light_state"), obj, area, node, friendly_name);
   stream->print(ESPHOME_F("\"} "));
   stream->print(obj->remote_values.is_on());
   stream->print(ESPHOME_F("\n"));
@@ -318,78 +330,45 @@ void PrometheusHandler::light_row_(AsyncResponseStream *stream, light::LightStat
   float brightness, r, g, b, w;
   color.as_brightness(&brightness);
   color.as_rgbw(&r, &g, &b, &w);
-  stream->print(ESPHOME_F("esphome_light_color{id=\""));
-  stream->print(relabel_id_(obj).c_str());
-  add_area_label_(stream, area);
-  add_node_label_(stream, node);
-  add_friendly_name_label_(stream, friendly_name);
-  stream->print(ESPHOME_F("\",name=\""));
-  stream->print(relabel_name_(obj).c_str());
-  stream->print(ESPHOME_F("\",channel=\"brightness\"} "));
-  stream->print(brightness);
-  stream->print(ESPHOME_F("\n"));
-  stream->print(ESPHOME_F("esphome_light_color{id=\""));
-  stream->print(relabel_id_(obj).c_str());
-  add_area_label_(stream, area);
-  add_node_label_(stream, node);
-  add_friendly_name_label_(stream, friendly_name);
-  stream->print(ESPHOME_F("\",name=\""));
-  stream->print(relabel_name_(obj).c_str());
-  stream->print(ESPHOME_F("\",channel=\"r\"} "));
-  stream->print(r);
-  stream->print(ESPHOME_F("\n"));
-  stream->print(ESPHOME_F("esphome_light_color{id=\""));
-  stream->print(relabel_id_(obj).c_str());
-  add_area_label_(stream, area);
-  add_node_label_(stream, node);
-  add_friendly_name_label_(stream, friendly_name);
-  stream->print(ESPHOME_F("\",name=\""));
-  stream->print(relabel_name_(obj).c_str());
-  stream->print(ESPHOME_F("\",channel=\"g\"} "));
-  stream->print(g);
-  stream->print(ESPHOME_F("\n"));
-  stream->print(ESPHOME_F("esphome_light_color{id=\""));
-  stream->print(relabel_id_(obj).c_str());
-  add_area_label_(stream, area);
-  add_node_label_(stream, node);
-  add_friendly_name_label_(stream, friendly_name);
-  stream->print(ESPHOME_F("\",name=\""));
-  stream->print(relabel_name_(obj).c_str());
-  stream->print(ESPHOME_F("\",channel=\"b\"} "));
-  stream->print(b);
-  stream->print(ESPHOME_F("\n"));
-  stream->print(ESPHOME_F("esphome_light_color{id=\""));
-  stream->print(relabel_id_(obj).c_str());
-  add_area_label_(stream, area);
-  add_node_label_(stream, node);
-  add_friendly_name_label_(stream, friendly_name);
-  stream->print(ESPHOME_F("\",name=\""));
-  stream->print(relabel_name_(obj).c_str());
-  stream->print(ESPHOME_F("\",channel=\"w\"} "));
-  stream->print(w);
-  stream->print(ESPHOME_F("\n"));
-  // Effect
-  std::string effect = obj->get_effect_name();
-  if (effect == "None") {
-    stream->print(ESPHOME_F("esphome_light_effect_active{id=\""));
-    stream->print(relabel_id_(obj).c_str());
-    add_area_label_(stream, area);
-    add_node_label_(stream, node);
-    add_friendly_name_label_(stream, friendly_name);
-    stream->print(ESPHOME_F("\",name=\""));
-    stream->print(relabel_name_(obj).c_str());
-    stream->print(ESPHOME_F("\",effect=\"None\"} 0\n"));
-  } else {
-    stream->print(ESPHOME_F("esphome_light_effect_active{id=\""));
-    stream->print(relabel_id_(obj).c_str());
-    add_area_label_(stream, area);
-    add_node_label_(stream, node);
-    add_friendly_name_label_(stream, friendly_name);
-    stream->print(ESPHOME_F("\",name=\""));
-    stream->print(relabel_name_(obj).c_str());
+  if (obj->get_traits().supports_color_capability(light::ColorCapability::BRIGHTNESS)) {
+    print_metric_labels_(stream, ESPHOME_F("esphome_light_color"), obj, area, node, friendly_name);
+    stream->print(ESPHOME_F("\",channel=\"brightness\"} "));
+    stream->print(brightness);
+    stream->print(ESPHOME_F("\n"));
+  }
+  if (obj->get_traits().supports_color_capability(light::ColorCapability::RGB)) {
+    print_metric_labels_(stream, ESPHOME_F("esphome_light_color"), obj, area, node, friendly_name);
+    stream->print(ESPHOME_F("\",channel=\"r\"} "));
+    stream->print(r);
+    stream->print(ESPHOME_F("\n"));
+    print_metric_labels_(stream, ESPHOME_F("esphome_light_color"), obj, area, node, friendly_name);
+    stream->print(ESPHOME_F("\",channel=\"g\"} "));
+    stream->print(g);
+    stream->print(ESPHOME_F("\n"));
+    print_metric_labels_(stream, ESPHOME_F("esphome_light_color"), obj, area, node, friendly_name);
+    stream->print(ESPHOME_F("\",channel=\"b\"} "));
+    stream->print(b);
+    stream->print(ESPHOME_F("\n"));
+  }
+  if (obj->get_traits().supports_color_capability(light::ColorCapability::WHITE)) {
+    print_metric_labels_(stream, ESPHOME_F("esphome_light_color"), obj, area, node, friendly_name);
+    stream->print(ESPHOME_F("\",channel=\"w\"} "));
+    stream->print(w);
+    stream->print(ESPHOME_F("\n"));
+  }
+  // Skip effect metrics if light has no effects
+  if (!obj->get_effects().empty()) {
+    // Effect
+    std::string effect = obj->get_effect_name();
+    print_metric_labels_(stream, ESPHOME_F("esphome_light_effect_active"), obj, area, node, friendly_name);
     stream->print(ESPHOME_F("\",effect=\""));
-    stream->print(effect.c_str());
-    stream->print(ESPHOME_F("\"} 1\n"));
+    // Only vary based on effect
+    if (effect == "None") {
+      stream->print(ESPHOME_F("None\"} 0\n"));
+    } else {
+      stream->print(effect.c_str());
+      stream->print(ESPHOME_F("\"} 1\n"));
+    }
   }
 }
 #endif

esphome/components/prometheus/prometheus_handler.h

@@ -66,6 +66,14 @@ class PrometheusHandler : public AsyncWebHandler, public Component {
   void add_area_label_(AsyncResponseStream *stream, std::string &area);
   void add_node_label_(AsyncResponseStream *stream, std::string &node);
   void add_friendly_name_label_(AsyncResponseStream *stream, std::string &friendly_name);
+  /// Print metric name and common labels (id, area, node, friendly_name, name)
+#ifdef USE_ESP8266
+  void print_metric_labels_(AsyncResponseStream *stream, const __FlashStringHelper *metric_name, EntityBase *obj,
+                            std::string &area, std::string &node, std::string &friendly_name);
+#else
+  void print_metric_labels_(AsyncResponseStream *stream, const char *metric_name, EntityBase *obj, std::string &area,
+                            std::string &node, std::string &friendly_name);
+#endif
 
 #ifdef USE_SENSOR
   /// Return the type for prometheus

esphome/components/pvvx_mithermometer/display/pvvx_display.cpp

@@ -14,7 +14,7 @@ void PVVXDisplay::dump_config() {
                 "  Service UUID          : %s\n"
                 "  Characteristic UUID   : %s\n"
                 "  Auto clear            : %s",
-                this->parent_->address_str().c_str(), this->service_uuid_.to_string().c_str(),
+                this->parent_->address_str(), this->service_uuid_.to_string().c_str(),
                 this->char_uuid_.to_string().c_str(), YESNO(this->auto_clear_enabled_));
 #ifdef USE_TIME
   ESP_LOGCONFIG(TAG, "  Set time on connection: %s", YESNO(this->time_ != nullptr));
@@ -28,12 +28,12 @@ void PVVXDisplay::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t
   switch (event) {
     case ESP_GATTC_OPEN_EVT:
       if (param->open.status == ESP_GATT_OK) {
-        ESP_LOGV(TAG, "[%s] Connected successfully!", this->parent_->address_str().c_str());
+        ESP_LOGV(TAG, "[%s] Connected successfully!", this->parent_->address_str());
         this->delayed_disconnect_();
       }
       break;
     case ESP_GATTC_DISCONNECT_EVT:
-      ESP_LOGV(TAG, "[%s] Disconnected", this->parent_->address_str().c_str());
+      ESP_LOGV(TAG, "[%s] Disconnected", this->parent_->address_str());
       this->connection_established_ = false;
       this->cancel_timeout("disconnect");
       this->char_handle_ = 0;
@@ -41,7 +41,7 @@ void PVVXDisplay::gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t
     case ESP_GATTC_SEARCH_CMPL_EVT: {
       auto *chr = this->parent_->get_characteristic(this->service_uuid_, this->char_uuid_);
       if (chr == nullptr) {
-        ESP_LOGW(TAG, "[%s] Characteristic not found.", this->parent_->address_str().c_str());
+        ESP_LOGW(TAG, "[%s] Characteristic not found.", this->parent_->address_str());
         break;
       }
       this->connection_established_ = true;
@@ -66,11 +66,11 @@ void PVVXDisplay::gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb
         return;
 
       if (param->ble_security.auth_cmpl.success) {
-        ESP_LOGD(TAG, "[%s] Authentication successful, performing writes.", this->parent_->address_str().c_str());
+        ESP_LOGD(TAG, "[%s] Authentication successful, performing writes.", this->parent_->address_str());
         // Now that pairing is complete, perform the pending writes
         this->sync_time_and_display_();
       } else {
-        ESP_LOGW(TAG, "[%s] Authentication failed.", this->parent_->address_str().c_str());
+        ESP_LOGW(TAG, "[%s] Authentication failed.", this->parent_->address_str());
       }
       break;
     }
@@ -89,22 +89,20 @@ void PVVXDisplay::update() {
 
 void PVVXDisplay::display() {
   if (!this->parent_->enabled) {
-    ESP_LOGD(TAG, "[%s] BLE client not enabled.  Init connection.", this->parent_->address_str().c_str());
+    ESP_LOGD(TAG, "[%s] BLE client not enabled.  Init connection.", this->parent_->address_str());
     this->parent_->set_enabled(true);
     return;
   }
   if (!this->connection_established_) {
-    ESP_LOGW(TAG, "[%s] Not connected to BLE client.  State update can not be written.",
-             this->parent_->address_str().c_str());
+    ESP_LOGW(TAG, "[%s] Not connected to BLE client.  State update can not be written.", this->parent_->address_str());
     return;
   }
   if (!this->char_handle_) {
-    ESP_LOGW(TAG, "[%s] No ble handle to BLE client.  State update can not be written.",
-             this->parent_->address_str().c_str());
+    ESP_LOGW(TAG, "[%s] No ble handle to BLE client.  State update can not be written.", this->parent_->address_str());
     return;
   }
   ESP_LOGD(TAG, "[%s] Send to display: bignum %d, smallnum: %d, cfg: 0x%02x, validity period: %u.",
-           this->parent_->address_str().c_str(), this->bignum_, this->smallnum_, this->cfg_, this->validity_period_);
+           this->parent_->address_str(), this->bignum_, this->smallnum_, this->cfg_, this->validity_period_);
   uint8_t blk[8] = {};
   blk[0] = 0x22;
   blk[1] = this->bignum_ & 0xff;
@@ -128,16 +126,16 @@ void PVVXDisplay::setcfgbit_(uint8_t bit, bool value) {
 
 void PVVXDisplay::send_to_setup_char_(uint8_t *blk, size_t size) {
   if (!this->connection_established_) {
-    ESP_LOGW(TAG, "[%s] Not connected to BLE client.", this->parent_->address_str().c_str());
+    ESP_LOGW(TAG, "[%s] Not connected to BLE client.", this->parent_->address_str());
     return;
   }
   auto status =
       esp_ble_gattc_write_char(this->parent_->get_gattc_if(), this->parent_->get_conn_id(), this->char_handle_, size,
                                blk, ESP_GATT_WRITE_TYPE_NO_RSP, ESP_GATT_AUTH_REQ_NONE);
   if (status) {
-    ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str().c_str(), status);
+    ESP_LOGW(TAG, "[%s] esp_ble_gattc_write_char failed, status=%d", this->parent_->address_str(), status);
   } else {
-    ESP_LOGV(TAG, "[%s] send %u bytes", this->parent_->address_str().c_str(), size);
+    ESP_LOGV(TAG, "[%s] send %u bytes", this->parent_->address_str(), size);
     this->delayed_disconnect_();
   }
 }
@@ -161,21 +159,21 @@ void PVVXDisplay::sync_time_() {
   if (this->time_ == nullptr)
     return;
   if (!this->connection_established_) {
-    ESP_LOGW(TAG, "[%s] Not connected to BLE client.  Time can not be synced.", this->parent_->address_str().c_str());
+    ESP_LOGW(TAG, "[%s] Not connected to BLE client.  Time can not be synced.", this->parent_->address_str());
     return;
   }
   if (!this->char_handle_) {
-    ESP_LOGW(TAG, "[%s] No ble handle to BLE client.  Time can not be synced.", this->parent_->address_str().c_str());
+    ESP_LOGW(TAG, "[%s] No ble handle to BLE client.  Time can not be synced.", this->parent_->address_str());
     return;
   }
   auto time = this->time_->now();
   if (!time.is_valid()) {
-    ESP_LOGW(TAG, "[%s] Time is not yet valid.  Time can not be synced.", this->parent_->address_str().c_str());
+    ESP_LOGW(TAG, "[%s] Time is not yet valid.  Time can not be synced.", this->parent_->address_str());
     return;
   }
   time.recalc_timestamp_utc(true);  // calculate timestamp of local time
   uint8_t blk[5] = {};
-  ESP_LOGD(TAG, "[%s] Sync time with timestamp %" PRIu64 ".", this->parent_->address_str().c_str(), time.timestamp);
+  ESP_LOGD(TAG, "[%s] Sync time with timestamp %" PRIu64 ".", this->parent_->address_str(), time.timestamp);
   blk[0] = 0x23;
   blk[1] = time.timestamp & 0xff;
   blk[2] = (time.timestamp >> 8) & 0xff;

esphome/components/script/script.h

@@ -46,14 +46,14 @@ template<typename... Ts> class Script : public ScriptLogger, public Trigger<Ts..
 
   // execute this script using a tuple that contains the arguments
   void execute_tuple(const std::tuple<Ts...> &tuple) {
-    this->execute_tuple_(tuple, typename gens<sizeof...(Ts)>::type());
+    this->execute_tuple_(tuple, std::make_index_sequence<sizeof...(Ts)>{});
   }
 
   // Internal function to give scripts readable names.
   void set_name(const LogString *name) { name_ = name; }
 
  protected:
-  template<int... S> void execute_tuple_(const std::tuple<Ts...> &tuple, seq<S...> /*unused*/) {
+  template<size_t... S> void execute_tuple_(const std::tuple<Ts...> &tuple, std::index_sequence<S...> /*unused*/) {
     this->execute(std::get<S>(tuple)...);
   }
 
@@ -157,7 +157,7 @@ template<typename... Ts> class QueueingScript : public Script<Ts...>, public Com
       const size_t queue_capacity = static_cast<size_t>(this->max_runs_ - 1);
       auto tuple_ptr = std::move(this->var_queue_[this->queue_front_]);
       this->queue_front_ = (this->queue_front_ + 1) % queue_capacity;
-      this->trigger_tuple_(*tuple_ptr, typename gens<sizeof...(Ts)>::type());
+      this->trigger_tuple_(*tuple_ptr, std::make_index_sequence<sizeof...(Ts)>{});
     }
   }
 
@@ -174,7 +174,7 @@ template<typename... Ts> class QueueingScript : public Script<Ts...>, public Com
     }
   }
 
-  template<int... S> void trigger_tuple_(const std::tuple<Ts...> &tuple, seq<S...> /*unused*/) {
+  template<size_t... S> void trigger_tuple_(const std::tuple<Ts...> &tuple, std::index_sequence<S...> /*unused*/) {
     this->trigger(std::get<S>(tuple)...);
   }
 
@@ -313,7 +313,7 @@ template<class C, typename... Ts> class ScriptWaitAction : public Action<Ts...>,
     // play_next_() can trigger more items to be queued
     if (!this->param_queue_.empty()) {
       auto &params = this->param_queue_.front();
-      this->play_next_tuple_(params, typename gens<sizeof...(Ts)>::type());
+      this->play_next_tuple_(params, std::make_index_sequence<sizeof...(Ts)>{});
       this->param_queue_.pop_front();
     } else {
       // Queue is now empty - disable loop until next play_complex
@@ -330,7 +330,7 @@ template<class C, typename... Ts> class ScriptWaitAction : public Action<Ts...>,
   }
 
  protected:
-  template<int... S> void play_next_tuple_(const std::tuple<Ts...> &tuple, seq<S...> /*unused*/) {
+  template<size_t... S> void play_next_tuple_(const std::tuple<Ts...> &tuple, std::index_sequence<S...> /*unused*/) {
     this->play_next_(std::get<S>(tuple)...);
   }
 

esphome/components/sensor/__init__.py

@@ -270,7 +270,9 @@ ThrottleFilter = sensor_ns.class_("ThrottleFilter", Filter)
 ThrottleWithPriorityFilter = sensor_ns.class_(
     "ThrottleWithPriorityFilter", ValueListFilter
 )
-TimeoutFilter = sensor_ns.class_("TimeoutFilter", Filter, cg.Component)
+TimeoutFilterBase = sensor_ns.class_("TimeoutFilterBase", Filter, cg.Component)
+TimeoutFilterLast = sensor_ns.class_("TimeoutFilterLast", TimeoutFilterBase)
+TimeoutFilterConfigured = sensor_ns.class_("TimeoutFilterConfigured", TimeoutFilterBase)
 DebounceFilter = sensor_ns.class_("DebounceFilter", Filter, cg.Component)
 HeartbeatFilter = sensor_ns.class_("HeartbeatFilter", Filter, cg.Component)
 DeltaFilter = sensor_ns.class_("DeltaFilter", Filter)
@@ -681,11 +683,16 @@ TIMEOUT_SCHEMA = cv.maybe_simple_value(
 )
 
 
-@FILTER_REGISTRY.register("timeout", TimeoutFilter, TIMEOUT_SCHEMA)
+@FILTER_REGISTRY.register("timeout", TimeoutFilterBase, TIMEOUT_SCHEMA)
 async def timeout_filter_to_code(config, filter_id):
+    filter_id = filter_id.copy()
     if config[CONF_VALUE] == "last":
+        # Use TimeoutFilterLast for "last" mode (smaller, more common - LD2450, LD2412, etc.)
+        filter_id.type = TimeoutFilterLast
         var = cg.new_Pvariable(filter_id, config[CONF_TIMEOUT])
     else:
+        # Use TimeoutFilterConfigured for configured value mode
+        filter_id.type = TimeoutFilterConfigured
         template_ = await cg.templatable(config[CONF_VALUE], [], float)
         var = cg.new_Pvariable(filter_id, config[CONF_TIMEOUT], template_)
     await cg.register_component(var, {})

esphome/components/sensor/filter.cpp

@@ -339,20 +339,43 @@ void OrFilter::initialize(Sensor *parent, Filter *next) {
   this->phi_.initialize(parent, nullptr);
 }
 
-// TimeoutFilter
-optional<float> TimeoutFilter::new_value(float value) {
-  if (this->value_.has_value()) {
-    this->set_timeout("timeout", this->time_period_, [this]() { this->output(this->value_.value().value()); });
-  } else {
-    this->set_timeout("timeout", this->time_period_, [this, value]() { this->output(value); });
+// TimeoutFilterBase - shared loop logic
+void TimeoutFilterBase::loop() {
+  // Check if timeout period has elapsed
+  // Use cached loop start time to avoid repeated millis() calls
+  const uint32_t now = App.get_loop_component_start_time();
+  if (now - this->timeout_start_time_ >= this->time_period_) {
+    // Timeout fired - get output value from derived class and output it
+    this->output(this->get_output_value());
+
+    // Disable loop until next value arrives
+    this->disable_loop();
   }
+}
+
+float TimeoutFilterBase::get_setup_priority() const { return setup_priority::HARDWARE; }
+
+// TimeoutFilterLast - "last" mode implementation
+optional<float> TimeoutFilterLast::new_value(float value) {
+  // Store the value to output when timeout fires
+  this->pending_value_ = value;
+
+  // Record when timeout started and enable loop
+  this->timeout_start_time_ = millis();
+  this->enable_loop();
+
   return value;
 }
 
-TimeoutFilter::TimeoutFilter(uint32_t time_period) : time_period_(time_period) {}
-TimeoutFilter::TimeoutFilter(uint32_t time_period, const TemplatableValue<float> &new_value)
-    : time_period_(time_period), value_(new_value) {}
-float TimeoutFilter::get_setup_priority() const { return setup_priority::HARDWARE; }
+// TimeoutFilterConfigured - configured value mode implementation
+optional<float> TimeoutFilterConfigured::new_value(float value) {
+  // Record when timeout started and enable loop
+  // Note: we don't store the incoming value since we have a configured value
+  this->timeout_start_time_ = millis();
+  this->enable_loop();
+
+  return value;
+}
 
 // DebounceFilter
 optional<float> DebounceFilter::new_value(float value) {

esphome/components/sensor/filter.h

@@ -380,18 +380,46 @@ class ThrottleWithPriorityFilter : public ValueListFilter {
   uint32_t min_time_between_inputs_;
 };
 
-class TimeoutFilter : public Filter, public Component {
+// Base class for timeout filters - contains common loop logic
+class TimeoutFilterBase : public Filter, public Component {
  public:
-  explicit TimeoutFilter(uint32_t time_period);
-  explicit TimeoutFilter(uint32_t time_period, const TemplatableValue<float> &new_value);
-
-  optional<float> new_value(float value) override;
-
+  void loop() override;
   float get_setup_priority() const override;
 
  protected:
-  uint32_t time_period_;
-  optional<TemplatableValue<float>> value_;
+  explicit TimeoutFilterBase(uint32_t time_period) : time_period_(time_period) { this->disable_loop(); }
+  virtual float get_output_value() = 0;
+
+  uint32_t time_period_;            // 4 bytes (timeout duration in ms)
+  uint32_t timeout_start_time_{0};  // 4 bytes (when the timeout was started)
+  // Total base: 8 bytes
+};
+
+// Timeout filter for "last" mode - outputs the last received value after timeout
+class TimeoutFilterLast : public TimeoutFilterBase {
+ public:
+  explicit TimeoutFilterLast(uint32_t time_period) : TimeoutFilterBase(time_period) {}
+
+  optional<float> new_value(float value) override;
+
+ protected:
+  float get_output_value() override { return this->pending_value_; }
+  float pending_value_{0};  // 4 bytes (value to output when timeout fires)
+  // Total: 8 (base) + 4 = 12 bytes + vtable ptr + Component overhead
+};
+
+// Timeout filter with configured value - evaluates TemplatableValue after timeout
+class TimeoutFilterConfigured : public TimeoutFilterBase {
+ public:
+  explicit TimeoutFilterConfigured(uint32_t time_period, const TemplatableValue<float> &new_value)
+      : TimeoutFilterBase(time_period), value_(new_value) {}
+
+  optional<float> new_value(float value) override;
+
+ protected:
+  float get_output_value() override { return this->value_.value(); }
+  TemplatableValue<float> value_;  // 16 bytes (configured output value, can be lambda)
+  // Total: 8 (base) + 16 = 24 bytes + vtable ptr + Component overhead
 };
 
 class DebounceFilter : public Filter, public Component {

esphome/components/syslog/esphome_syslog.cpp

@@ -19,11 +19,10 @@ constexpr int LOG_LEVEL_TO_SYSLOG_SEVERITY[] = {
     7   // VERY_VERBOSE
 };
 
-void Syslog::setup() {
-  logger::global_logger->add_on_log_callback(
-      [this](int level, const char *tag, const char *message, size_t message_len) {
-        this->log_(level, tag, message, message_len);
-      });
+void Syslog::setup() { logger::global_logger->add_log_listener(this); }
+
+void Syslog::on_log(uint8_t level, const char *tag, const char *message, size_t message_len) {
+  this->log_(level, tag, message, message_len);
 }
 
 void Syslog::log_(const int level, const char *tag, const char *message, size_t message_len) const {

esphome/components/syslog/esphome_syslog.h

@@ -2,16 +2,18 @@
 #include "esphome/core/component.h"
 #include "esphome/core/helpers.h"
 #include "esphome/core/log.h"
+#include "esphome/components/logger/logger.h"
 #include "esphome/components/udp/udp_component.h"
 #include "esphome/components/time/real_time_clock.h"
 
 #ifdef USE_NETWORK
 namespace esphome {
 namespace syslog {
-class Syslog : public Component, public Parented<udp::UDPComponent> {
+class Syslog : public Component, public Parented<udp::UDPComponent>, public logger::LogListener {
  public:
   Syslog(int level, time::RealTimeClock *time) : log_level_(level), time_(time) {}
   void setup() override;
+  void on_log(uint8_t level, const char *tag, const char *message, size_t message_len) override;
   void set_strip(bool strip) { this->strip_ = strip; }
   void set_facility(int facility) { this->facility_ = facility; }
 

esphome/components/thermostat/thermostat_climate.cpp

@@ -654,7 +654,7 @@ void ThermostatClimate::trigger_supplemental_action_() {
 
 void ThermostatClimate::switch_to_humidity_control_action_(HumidificationAction action) {
   // setup_complete_ helps us ensure an action is called immediately after boot
-  if ((action == this->humidification_action_) && this->setup_complete_) {
+  if ((action == this->humidification_action) && this->setup_complete_) {
     // already in target mode
     return;
   }
@@ -683,7 +683,7 @@ void ThermostatClimate::switch_to_humidity_control_action_(HumidificationAction
     this->prev_humidity_control_trigger_->stop_action();
     this->prev_humidity_control_trigger_ = nullptr;
   }
-  this->humidification_action_ = action;
+  this->humidification_action = action;
   this->prev_humidity_control_trigger_ = trig;
   if (trig != nullptr) {
     trig->trigger();
@@ -1114,7 +1114,7 @@ bool ThermostatClimate::dehumidification_required_() {
   }
   // if we get here, the current humidity is between target + hysteresis and target - hysteresis,
   //  so the action should not change
-  return this->humidification_action_ == THERMOSTAT_HUMIDITY_CONTROL_ACTION_DEHUMIDIFY;
+  return this->humidification_action == THERMOSTAT_HUMIDITY_CONTROL_ACTION_DEHUMIDIFY;
 }
 
 bool ThermostatClimate::humidification_required_() {
@@ -1127,7 +1127,7 @@ bool ThermostatClimate::humidification_required_() {
   }
   // if we get here, the current humidity is between target - hysteresis and target + hysteresis,
   //  so the action should not change
-  return this->humidification_action_ == THERMOSTAT_HUMIDITY_CONTROL_ACTION_HUMIDIFY;
+  return this->humidification_action == THERMOSTAT_HUMIDITY_CONTROL_ACTION_HUMIDIFY;
 }
 
 void ThermostatClimate::dump_preset_config_(const char *preset_name, const ThermostatClimateTargetTempConfig &config) {

esphome/components/thermostat/thermostat_climate.h

@@ -207,6 +207,9 @@ class ThermostatClimate : public climate::Climate, public Component {
   void validate_target_temperature_high();
   void validate_target_humidity();
 
+  /// The current humidification action
+  HumidificationAction humidification_action{THERMOSTAT_HUMIDITY_CONTROL_ACTION_NONE};
+
  protected:
   /// Override control to change settings of the climate device.
   void control(const climate::ClimateCall &call) override;
@@ -301,9 +304,6 @@ class ThermostatClimate : public climate::Climate, public Component {
   /// The current supplemental action
   climate::ClimateAction supplemental_action_{climate::CLIMATE_ACTION_OFF};
 
-  /// The current humidification action
-  HumidificationAction humidification_action_{THERMOSTAT_HUMIDITY_CONTROL_ACTION_NONE};
-
   /// Default standard preset to use on start up
   climate::ClimatePreset default_preset_{};
 

esphome/components/usb_uart/__init__.py

@@ -1,4 +1,5 @@
 import esphome.codegen as cg
+from esphome.components import socket
 from esphome.components.uart import (
     CONF_DATA_BITS,
     CONF_PARITY,
@@ -17,7 +18,7 @@ from esphome.const import (
 )
 from esphome.cpp_types import Component
 
-AUTO_LOAD = ["uart", "usb_host", "bytebuffer"]
+AUTO_LOAD = ["uart", "usb_host", "bytebuffer", "socket"]
 CODEOWNERS = ["@clydebarrow"]
 
 usb_uart_ns = cg.esphome_ns.namespace("usb_uart")
@@ -116,6 +117,10 @@ CONFIG_SCHEMA = cv.ensure_list(
 
 
 async def to_code(config):
+    # Enable wake_loop_threadsafe for low-latency USB data processing
+    # The USB task queues data events that need immediate processing
+    socket.require_wake_loop_threadsafe()
+
     for device in config:
         var = await register_usb_client(device)
         for index, channel in enumerate(device[CONF_CHANNELS]):

esphome/components/usb_uart/usb_uart.cpp

@@ -2,6 +2,7 @@
 #if defined(USE_ESP32_VARIANT_ESP32S2) || defined(USE_ESP32_VARIANT_ESP32S3) || defined(USE_ESP32_VARIANT_ESP32P4)
 #include "usb_uart.h"
 #include "esphome/core/log.h"
+#include "esphome/core/application.h"
 #include "esphome/components/uart/uart_debugger.h"
 
 #include <cinttypes>
@@ -262,6 +263,11 @@ void USBUartComponent::start_input(USBUartChannel *channel) {
       // Push to lock-free queue for main loop processing
       // Push always succeeds because pool size == queue size
       this->usb_data_queue_.push(chunk);
+
+      // Wake main loop immediately to process USB data instead of waiting for select() timeout
+#if defined(USE_SOCKET_SELECT_SUPPORT) && defined(USE_WAKE_LOOP_THREADSAFE)
+      App.wake_loop_threadsafe();
+#endif
     }
 
     // On success, restart input immediately from USB task for performance

esphome/components/web_server/web_server.cpp

@@ -301,12 +301,7 @@ void WebServer::setup() {
 
 #ifdef USE_LOGGER
   if (logger::global_logger != nullptr && this->expose_log_) {
-    logger::global_logger->add_on_log_callback(
-        // logs are not deferred, the memory overhead would be too large
-        [this](int level, const char *tag, const char *message, size_t message_len) {
-          (void) message_len;
-          this->events_.try_send_nodefer(message, "log", millis());
-        });
+    logger::global_logger->add_log_listener(this);
   }
 #endif
 
@@ -322,6 +317,16 @@ void WebServer::setup() {
   this->set_interval(10000, [this]() { this->events_.try_send_nodefer("", "ping", millis(), 30000); });
 }
 void WebServer::loop() { this->events_.loop(); }
+
+#ifdef USE_LOGGER
+void WebServer::on_log(uint8_t level, const char *tag, const char *message, size_t message_len) {
+  (void) level;
+  (void) tag;
+  (void) message_len;
+  this->events_.try_send_nodefer(message, "log", millis());
+}
+#endif
+
 void WebServer::dump_config() {
   ESP_LOGCONFIG(TAG,
                 "Web Server:\n"

esphome/components/web_server/web_server.h

@@ -7,6 +7,9 @@
 #include "esphome/core/component.h"
 #include "esphome/core/controller.h"
 #include "esphome/core/entity_base.h"
+#ifdef USE_LOGGER
+#include "esphome/components/logger/logger.h"
+#endif
 
 #include <functional>
 #include <list>
@@ -170,7 +173,14 @@ class DeferredUpdateEventSourceList : public std::list<DeferredUpdateEventSource
  * under the '/light/...', '/sensor/...', ... URLs. A full documentation for this API
  * can be found under https://esphome.io/web-api/index.html.
  */
-class WebServer : public Controller, public Component, public AsyncWebHandler {
+class WebServer : public Controller,
+                  public Component,
+                  public AsyncWebHandler
+#ifdef USE_LOGGER
+    ,
+                  public logger::LogListener
+#endif
+{
 #if !defined(USE_ESP32) && defined(USE_ARDUINO)
   friend class DeferredUpdateEventSourceList;
 #endif
@@ -230,6 +240,10 @@ class WebServer : public Controller, public Component, public AsyncWebHandler {
 
   void dump_config() override;
 
+#ifdef USE_LOGGER
+  void on_log(uint8_t level, const char *tag, const char *message, size_t message_len) override;
+#endif
+
   /// MQTT setup priority.
   float get_setup_priority() const override;
 

esphome/components/wifi/__init__.py

@@ -608,7 +608,7 @@ async def wifi_disable_to_code(config, action_id, template_arg, args):
 
 KEEP_SCAN_RESULTS_KEY = "wifi_keep_scan_results"
 RUNTIME_POWER_SAVE_KEY = "wifi_runtime_power_save"
-WIFI_CALLBACKS_KEY = "wifi_callbacks"
+WIFI_LISTENERS_KEY = "wifi_listeners"
 
 
 def request_wifi_scan_results():
@@ -634,15 +634,15 @@ def enable_runtime_power_save_control():
     CORE.data[RUNTIME_POWER_SAVE_KEY] = True
 
 
-def request_wifi_callbacks() -> None:
-    """Request that WiFi callbacks be compiled in.
+def request_wifi_listeners() -> None:
+    """Request that WiFi state listeners be compiled in.
 
     Components that need to be notified about WiFi state changes (IP address changes,
     scan results, connection state) should call this function during their code generation.
-    This enables the add_on_ip_state_callback(), add_on_wifi_scan_state_callback(),
-    and add_on_wifi_connect_state_callback() APIs.
+    This enables the add_ip_state_listener(), add_scan_results_listener(),
+    and add_connect_state_listener() APIs.
     """
-    CORE.data[WIFI_CALLBACKS_KEY] = True
+    CORE.data[WIFI_LISTENERS_KEY] = True
 
 
 @coroutine_with_priority(CoroPriority.FINAL)
@@ -654,8 +654,8 @@ async def final_step():
         )
     if CORE.data.get(RUNTIME_POWER_SAVE_KEY, False):
         cg.add_define("USE_WIFI_RUNTIME_POWER_SAVE")
-    if CORE.data.get(WIFI_CALLBACKS_KEY, False):
-        cg.add_define("USE_WIFI_CALLBACKS")
+    if CORE.data.get(WIFI_LISTENERS_KEY, False):
+        cg.add_define("USE_WIFI_LISTENERS")
 
 
 @automation.register_action(

esphome/components/wifi/wifi_component.cpp

@@ -1612,6 +1612,20 @@ void WiFiComponent::retry_connect() {
   }
 }
 
+#ifdef USE_RP2040
+// RP2040's mDNS library (LEAmDNS) relies on LwipIntf::stateUpCB() to restart
+// mDNS when the network interface reconnects. However, this callback is disabled
+// in the arduino-pico framework. As a workaround, we block component setup until
+// WiFi is connected, ensuring mDNS.begin() is called with an active connection.
+
+bool WiFiComponent::can_proceed() {
+  if (!this->has_sta() || this->state_ == WIFI_COMPONENT_STATE_DISABLED || this->ap_setup_) {
+    return true;
+  }
+  return this->is_connected();
+}
+#endif
+
 void WiFiComponent::set_reboot_timeout(uint32_t reboot_timeout) { this->reboot_timeout_ = reboot_timeout; }
 bool WiFiComponent::is_connected() {
   return this->state_ == WIFI_COMPONENT_STATE_STA_CONNECTED &&

esphome/components/wifi/wifi_component.h

@@ -242,6 +242,37 @@ enum WifiMinAuthMode : uint8_t {
 struct IDFWiFiEvent;
 #endif
 
+/** Listener interface for WiFi IP state changes.
+ *
+ * Components can implement this interface to receive IP address updates
+ * without the overhead of std::function callbacks.
+ */
+class WiFiIPStateListener {
+ public:
+  virtual void on_ip_state(const network::IPAddresses &ips, const network::IPAddress &dns1,
+                           const network::IPAddress &dns2) = 0;
+};
+
+/** Listener interface for WiFi scan results.
+ *
+ * Components can implement this interface to receive scan results
+ * without the overhead of std::function callbacks.
+ */
+class WiFiScanResultsListener {
+ public:
+  virtual void on_wifi_scan_results(const wifi_scan_vector_t<WiFiScanResult> &results) = 0;
+};
+
+/** Listener interface for WiFi connection state changes.
+ *
+ * Components can implement this interface to receive connection updates
+ * without the overhead of std::function callbacks.
+ */
+class WiFiConnectStateListener {
+ public:
+  virtual void on_wifi_connect_state(const std::string &ssid, const bssid_t &bssid) = 0;
+};
+
 /// This component is responsible for managing the ESP WiFi interface.
 class WiFiComponent : public Component {
  public:
@@ -284,6 +315,10 @@ class WiFiComponent : public Component {
 
   void retry_connect();
 
+#ifdef USE_RP2040
+  bool can_proceed() override;
+#endif
+
   void set_reboot_timeout(uint32_t reboot_timeout);
 
   bool is_connected();
@@ -369,26 +404,22 @@ class WiFiComponent : public Component {
 
   int32_t get_wifi_channel();
 
-#ifdef USE_WIFI_CALLBACKS
-  /// Add a callback that will be called on configuration changes (IP change, SSID change, etc.)
-  /// @param callback The callback to be called; template arguments are:
-  /// - IP addresses
-  /// - DNS address 1
-  /// - DNS address 2
-  void add_on_ip_state_callback(
-      std::function<void(network::IPAddresses, network::IPAddress, network::IPAddress)> &&callback) {
-    this->ip_state_callback_.add(std::move(callback));
+#ifdef USE_WIFI_LISTENERS
+  /** Add a listener for IP state changes.
+   * Listener receives: IP addresses, DNS address 1, DNS address 2
+   */
+  void add_ip_state_listener(WiFiIPStateListener *listener) { this->ip_state_listeners_.push_back(listener); }
+  /// Add a listener for WiFi scan results
+  void add_scan_results_listener(WiFiScanResultsListener *listener) {
+    this->scan_results_listeners_.push_back(listener);
   }
-  /// - Wi-Fi scan results
-  void add_on_wifi_scan_state_callback(std::function<void(wifi_scan_vector_t<WiFiScanResult> &)> &&callback) {
-    this->wifi_scan_state_callback_.add(std::move(callback));
+  /** Add a listener for WiFi connection state changes.
+   * Listener receives: SSID, BSSID
+   */
+  void add_connect_state_listener(WiFiConnectStateListener *listener) {
+    this->connect_state_listeners_.push_back(listener);
   }
-  /// - Wi-Fi SSID
-  /// - Wi-Fi BSSID
-  void add_on_wifi_connect_state_callback(std::function<void(std::string, wifi::bssid_t)> &&callback) {
-    this->wifi_connect_state_callback_.add(std::move(callback));
-  }
-#endif  // USE_WIFI_CALLBACKS
+#endif  // USE_WIFI_LISTENERS
 
 #ifdef USE_WIFI_RUNTIME_POWER_SAVE
   /** Request high-performance mode (no power saving) for improved WiFi latency.
@@ -546,11 +577,11 @@ class WiFiComponent : public Component {
   WiFiAP ap_;
 #endif
   optional<float> output_power_;
-#ifdef USE_WIFI_CALLBACKS
-  CallbackManager<void(network::IPAddresses, network::IPAddress, network::IPAddress)> ip_state_callback_;
-  CallbackManager<void(wifi_scan_vector_t<WiFiScanResult> &)> wifi_scan_state_callback_;
-  CallbackManager<void(std::string, wifi::bssid_t)> wifi_connect_state_callback_;
-#endif  // USE_WIFI_CALLBACKS
+#ifdef USE_WIFI_LISTENERS
+  std::vector<WiFiIPStateListener *> ip_state_listeners_;
+  std::vector<WiFiScanResultsListener *> scan_results_listeners_;
+  std::vector<WiFiConnectStateListener *> connect_state_listeners_;
+#endif  // USE_WIFI_LISTENERS
   ESPPreferenceObject pref_;
 #ifdef USE_WIFI_FAST_CONNECT
   ESPPreferenceObject fast_connect_pref_;

esphome/components/wifi/wifi_component_esp8266.cpp

@@ -513,9 +513,10 @@ void WiFiComponent::wifi_event_callback(System_Event_t *event) {
       ESP_LOGV(TAG, "Connected ssid='%s' bssid=%s channel=%u", buf, format_mac_address_pretty(it.bssid).c_str(),
                it.channel);
       s_sta_connected = true;
-#ifdef USE_WIFI_CALLBACKS
-      global_wifi_component->wifi_connect_state_callback_.call(global_wifi_component->wifi_ssid(),
-                                                               global_wifi_component->wifi_bssid());
+#ifdef USE_WIFI_LISTENERS
+      for (auto *listener : global_wifi_component->connect_state_listeners_) {
+        listener->on_wifi_connect_state(global_wifi_component->wifi_ssid(), global_wifi_component->wifi_bssid());
+      }
 #endif
       break;
     }
@@ -536,8 +537,10 @@ void WiFiComponent::wifi_event_callback(System_Event_t *event) {
       }
       s_sta_connected = false;
       s_sta_connecting = false;
-#ifdef USE_WIFI_CALLBACKS
-      global_wifi_component->wifi_connect_state_callback_.call("", bssid_t({0, 0, 0, 0, 0, 0}));
+#ifdef USE_WIFI_LISTENERS
+      for (auto *listener : global_wifi_component->connect_state_listeners_) {
+        listener->on_wifi_connect_state("", bssid_t({0, 0, 0, 0, 0, 0}));
+      }
 #endif
       break;
     }
@@ -561,10 +564,11 @@ void WiFiComponent::wifi_event_callback(System_Event_t *event) {
       ESP_LOGV(TAG, "static_ip=%s gateway=%s netmask=%s", format_ip_addr(it.ip).c_str(), format_ip_addr(it.gw).c_str(),
                format_ip_addr(it.mask).c_str());
       s_sta_got_ip = true;
-#ifdef USE_WIFI_CALLBACKS
-      global_wifi_component->ip_state_callback_.call(global_wifi_component->wifi_sta_ip_addresses(),
-                                                     global_wifi_component->get_dns_address(0),
-                                                     global_wifi_component->get_dns_address(1));
+#ifdef USE_WIFI_LISTENERS
+      for (auto *listener : global_wifi_component->ip_state_listeners_) {
+        listener->on_ip_state(global_wifi_component->wifi_sta_ip_addresses(), global_wifi_component->get_dns_address(0),
+                              global_wifi_component->get_dns_address(1));
+      }
 #endif
       break;
     }
@@ -740,8 +744,10 @@ void WiFiComponent::wifi_scan_done_callback_(void *arg, STATUS status) {
         it->is_hidden != 0);
   }
   this->scan_done_ = true;
-#ifdef USE_WIFI_CALLBACKS
-  global_wifi_component->wifi_scan_state_callback_.call(global_wifi_component->scan_result_);
+#ifdef USE_WIFI_LISTENERS
+  for (auto *listener : global_wifi_component->scan_results_listeners_) {
+    listener->on_wifi_scan_results(global_wifi_component->scan_result_);
+  }
 #endif
 }
 
@@ -878,10 +884,9 @@ network::IPAddress WiFiComponent::wifi_soft_ap_ip() {
 
 bssid_t WiFiComponent::wifi_bssid() {
   bssid_t bssid{};
-  uint8_t *raw_bssid = WiFi.BSSID();
-  if (raw_bssid != nullptr) {
-    for (size_t i = 0; i < bssid.size(); i++)
-      bssid[i] = raw_bssid[i];
+  struct station_config conf {};
+  if (wifi_station_get_config(&conf)) {
+    std::copy_n(conf.bssid, bssid.size(), bssid.begin());
   }
   return bssid;
 }

esphome/components/wifi/wifi_component_esp_idf.cpp

@@ -727,8 +727,10 @@ void WiFiComponent::wifi_process_event_(IDFWiFiEvent *data) {
     ESP_LOGV(TAG, "Connected ssid='%s' bssid=" LOG_SECRET("%s") " channel=%u, authmode=%s", buf,
              format_mac_address_pretty(it.bssid).c_str(), it.channel, get_auth_mode_str(it.authmode));
     s_sta_connected = true;
-#ifdef USE_WIFI_CALLBACKS
-    this->wifi_connect_state_callback_.call(this->wifi_ssid(), this->wifi_bssid());
+#ifdef USE_WIFI_LISTENERS
+    for (auto *listener : this->connect_state_listeners_) {
+      listener->on_wifi_connect_state(this->wifi_ssid(), this->wifi_bssid());
+    }
 #endif
 
   } else if (data->event_base == WIFI_EVENT && data->event_id == WIFI_EVENT_STA_DISCONNECTED) {
@@ -753,8 +755,10 @@ void WiFiComponent::wifi_process_event_(IDFWiFiEvent *data) {
     s_sta_connected = false;
     s_sta_connecting = false;
     error_from_callback_ = true;
-#ifdef USE_WIFI_CALLBACKS
-    this->wifi_connect_state_callback_.call("", bssid_t({0, 0, 0, 0, 0, 0}));
+#ifdef USE_WIFI_LISTENERS
+    for (auto *listener : this->connect_state_listeners_) {
+      listener->on_wifi_connect_state("", bssid_t({0, 0, 0, 0, 0, 0}));
+    }
 #endif
 
   } else if (data->event_base == IP_EVENT && data->event_id == IP_EVENT_STA_GOT_IP) {
@@ -764,8 +768,10 @@ void WiFiComponent::wifi_process_event_(IDFWiFiEvent *data) {
 #endif /* USE_NETWORK_IPV6 */
     ESP_LOGV(TAG, "static_ip=" IPSTR " gateway=" IPSTR, IP2STR(&it.ip_info.ip), IP2STR(&it.ip_info.gw));
     this->got_ipv4_address_ = true;
-#ifdef USE_WIFI_CALLBACKS
-    this->ip_state_callback_.call(this->wifi_sta_ip_addresses(), this->get_dns_address(0), this->get_dns_address(1));
+#ifdef USE_WIFI_LISTENERS
+    for (auto *listener : this->ip_state_listeners_) {
+      listener->on_ip_state(this->wifi_sta_ip_addresses(), this->get_dns_address(0), this->get_dns_address(1));
+    }
 #endif
 
 #if USE_NETWORK_IPV6
@@ -773,8 +779,10 @@ void WiFiComponent::wifi_process_event_(IDFWiFiEvent *data) {
     const auto &it = data->data.ip_got_ip6;
     ESP_LOGV(TAG, "IPv6 address=" IPV6STR, IPV62STR(it.ip6_info.ip));
     this->num_ipv6_addresses_++;
-#ifdef USE_WIFI_CALLBACKS
-    this->ip_state_callback_.call(this->wifi_sta_ip_addresses(), this->get_dns_address(0), this->get_dns_address(1));
+#ifdef USE_WIFI_LISTENERS
+    for (auto *listener : this->ip_state_listeners_) {
+      listener->on_ip_state(this->wifi_sta_ip_addresses(), this->get_dns_address(0), this->get_dns_address(1));
+    }
 #endif
 #endif /* USE_NETWORK_IPV6 */
 
@@ -815,8 +823,10 @@ void WiFiComponent::wifi_process_event_(IDFWiFiEvent *data) {
       scan_result_.emplace_back(bssid, ssid, record.primary, record.rssi, record.authmode != WIFI_AUTH_OPEN,
                                 ssid.empty());
     }
-#ifdef USE_WIFI_CALLBACKS
-    this->wifi_scan_state_callback_.call(this->scan_result_);
+#ifdef USE_WIFI_LISTENERS
+    for (auto *listener : this->scan_results_listeners_) {
+      listener->on_wifi_scan_results(this->scan_result_);
+    }
 #endif
 
   } else if (data->event_base == WIFI_EVENT && data->event_id == WIFI_EVENT_AP_START) {

esphome/components/wifi/wifi_component_libretiny.cpp

@@ -287,8 +287,10 @@ void WiFiComponent::wifi_event_callback_(esphome_wifi_event_id_t event, esphome_
       buf[it.ssid_len] = '\0';
       ESP_LOGV(TAG, "Connected ssid='%s' bssid=" LOG_SECRET("%s") " channel=%u, authmode=%s", buf,
                format_mac_address_pretty(it.bssid).c_str(), it.channel, get_auth_mode_str(it.authmode));
-#ifdef USE_WIFI_CALLBACKS
-      this->wifi_connect_state_callback_.call(this->wifi_ssid(), this->wifi_bssid());
+#ifdef USE_WIFI_LISTENERS
+      for (auto *listener : this->connect_state_listeners_) {
+        listener->on_wifi_connect_state(this->wifi_ssid(), this->wifi_bssid());
+      }
 #endif
       break;
     }
@@ -315,8 +317,10 @@ void WiFiComponent::wifi_event_callback_(esphome_wifi_event_id_t event, esphome_
       }
 
       s_sta_connecting = false;
-#ifdef USE_WIFI_CALLBACKS
-      this->wifi_connect_state_callback_.call("", bssid_t({0, 0, 0, 0, 0, 0}));
+#ifdef USE_WIFI_LISTENERS
+      for (auto *listener : this->connect_state_listeners_) {
+        listener->on_wifi_connect_state("", bssid_t({0, 0, 0, 0, 0, 0}));
+      }
 #endif
       break;
     }
@@ -339,16 +343,20 @@ void WiFiComponent::wifi_event_callback_(esphome_wifi_event_id_t event, esphome_
       ESP_LOGV(TAG, "static_ip=%s gateway=%s", format_ip4_addr(WiFi.localIP()).c_str(),
                format_ip4_addr(WiFi.gatewayIP()).c_str());
       s_sta_connecting = false;
-#ifdef USE_WIFI_CALLBACKS
-      this->ip_state_callback_.call(this->wifi_sta_ip_addresses(), this->get_dns_address(0), this->get_dns_address(1));
+#ifdef USE_WIFI_LISTENERS
+      for (auto *listener : this->ip_state_listeners_) {
+        listener->on_ip_state(this->wifi_sta_ip_addresses(), this->get_dns_address(0), this->get_dns_address(1));
+      }
 #endif
       break;
     }
     case ESPHOME_EVENT_ID_WIFI_STA_GOT_IP6: {
       // auto it = info.got_ip.ip_info;
       ESP_LOGV(TAG, "Got IPv6");
-#ifdef USE_WIFI_CALLBACKS
-      this->ip_state_callback_.call(this->wifi_sta_ip_addresses(), this->get_dns_address(0), this->get_dns_address(1));
+#ifdef USE_WIFI_LISTENERS
+      for (auto *listener : this->ip_state_listeners_) {
+        listener->on_ip_state(this->wifi_sta_ip_addresses(), this->get_dns_address(0), this->get_dns_address(1));
+      }
 #endif
       break;
     }
@@ -443,8 +451,10 @@ void WiFiComponent::wifi_scan_done_callback_() {
   }
   WiFi.scanDelete();
   this->scan_done_ = true;
-#ifdef USE_WIFI_CALLBACKS
-  this->wifi_scan_state_callback_.call(this->scan_result_);
+#ifdef USE_WIFI_LISTENERS
+  for (auto *listener : this->scan_results_listeners_) {
+    listener->on_wifi_scan_results(this->scan_result_);
+  }
 #endif
 }
 

esphome/components/wifi/wifi_component_pico_w.cpp

@@ -225,8 +225,10 @@ void WiFiComponent::wifi_loop_() {
   if (this->state_ == WIFI_COMPONENT_STATE_STA_SCANNING && !cyw43_wifi_scan_active(&cyw43_state)) {
     this->scan_done_ = true;
     ESP_LOGV(TAG, "Scan done");
-#ifdef USE_WIFI_CALLBACKS
-    this->wifi_scan_state_callback_.call(this->scan_result_);
+#ifdef USE_WIFI_LISTENERS
+    for (auto *listener : this->scan_results_listeners_) {
+      listener->on_wifi_scan_results(this->scan_result_);
+    }
 #endif
   }
 
@@ -241,16 +243,20 @@ void WiFiComponent::wifi_loop_() {
     // Just connected
     s_sta_was_connected = true;
     ESP_LOGV(TAG, "Connected");
-#ifdef USE_WIFI_CALLBACKS
-    this->wifi_connect_state_callback_.call(this->wifi_ssid(), this->wifi_bssid());
+#ifdef USE_WIFI_LISTENERS
+    for (auto *listener : this->connect_state_listeners_) {
+      listener->on_wifi_connect_state(this->wifi_ssid(), this->wifi_bssid());
+    }
 #endif
   } else if (!is_connected && s_sta_was_connected) {
     // Just disconnected
     s_sta_was_connected = false;
     s_sta_had_ip = false;
     ESP_LOGV(TAG, "Disconnected");
-#ifdef USE_WIFI_CALLBACKS
-    this->wifi_connect_state_callback_.call("", bssid_t({0, 0, 0, 0, 0, 0}));
+#ifdef USE_WIFI_LISTENERS
+    for (auto *listener : this->connect_state_listeners_) {
+      listener->on_wifi_connect_state("", bssid_t({0, 0, 0, 0, 0, 0}));
+    }
 #endif
   }
 
@@ -267,8 +273,10 @@ void WiFiComponent::wifi_loop_() {
       // Just got IP address
       s_sta_had_ip = true;
       ESP_LOGV(TAG, "Got IP address");
-#ifdef USE_WIFI_CALLBACKS
-      this->ip_state_callback_.call(this->wifi_sta_ip_addresses(), this->get_dns_address(0), this->get_dns_address(1));
+#ifdef USE_WIFI_LISTENERS
+      for (auto *listener : this->ip_state_listeners_) {
+        listener->on_ip_state(this->wifi_sta_ip_addresses(), this->get_dns_address(0), this->get_dns_address(1));
+      }
 #endif
     }
   }

esphome/components/wifi_info/text_sensor.py

@@ -61,7 +61,7 @@ CONFIG_SCHEMA = cv.Schema(
     }
 )
 
-# Keys that require WiFi callbacks
+# Keys that require WiFi listeners
 _NETWORK_INFO_KEYS = {
     CONF_SSID,
     CONF_BSSID,
@@ -79,9 +79,9 @@ async def setup_conf(config, key):
 
 
 async def to_code(config):
-    # Request WiFi callbacks for any sensor that needs them
+    # Request WiFi listeners for any sensor that needs them
     if _NETWORK_INFO_KEYS.intersection(config):
-        wifi.request_wifi_callbacks()
+        wifi.request_wifi_listeners()
 
     await setup_conf(config, CONF_SSID)
     await setup_conf(config, CONF_BSSID)

esphome/components/wifi_info/wifi_info_text_sensor.cpp

@@ -12,16 +12,12 @@ static constexpr size_t MAX_STATE_LENGTH = 255;
  * IPAddressWiFiInfo
  *******************/
 
-void IPAddressWiFiInfo::setup() {
-  wifi::global_wifi_component->add_on_ip_state_callback(
-      [this](const network::IPAddresses &ips, const network::IPAddress &dns1_ip, const network::IPAddress &dns2_ip) {
-        this->state_callback_(ips);
-      });
-}
+void IPAddressWiFiInfo::setup() { wifi::global_wifi_component->add_ip_state_listener(this); }
 
 void IPAddressWiFiInfo::dump_config() { LOG_TEXT_SENSOR("", "IP Address", this); }
 
-void IPAddressWiFiInfo::state_callback_(const network::IPAddresses &ips) {
+void IPAddressWiFiInfo::on_ip_state(const network::IPAddresses &ips, const network::IPAddress &dns1,
+                                    const network::IPAddress &dns2) {
   this->publish_state(ips[0].str());
   uint8_t sensor = 0;
   for (const auto &ip : ips) {
@@ -38,17 +34,13 @@ void IPAddressWiFiInfo::state_callback_(const network::IPAddresses &ips) {
  * DNSAddressWifiInfo
  ********************/
 
-void DNSAddressWifiInfo::setup() {
-  wifi::global_wifi_component->add_on_ip_state_callback(
-      [this](const network::IPAddresses &ips, const network::IPAddress &dns1_ip, const network::IPAddress &dns2_ip) {
-        this->state_callback_(dns1_ip, dns2_ip);
-      });
-}
+void DNSAddressWifiInfo::setup() { wifi::global_wifi_component->add_ip_state_listener(this); }
 
 void DNSAddressWifiInfo::dump_config() { LOG_TEXT_SENSOR("", "DNS Address", this); }
 
-void DNSAddressWifiInfo::state_callback_(const network::IPAddress &dns1_ip, const network::IPAddress &dns2_ip) {
-  std::string dns_results = dns1_ip.str() + " " + dns2_ip.str();
+void DNSAddressWifiInfo::on_ip_state(const network::IPAddresses &ips, const network::IPAddress &dns1,
+                                     const network::IPAddress &dns2) {
+  std::string dns_results = dns1.str() + " " + dns2.str();
   this->publish_state(dns_results);
 }
 
@@ -56,14 +48,11 @@ void DNSAddressWifiInfo::state_callback_(const network::IPAddress &dns1_ip, cons
  * ScanResultsWiFiInfo
  *********************/
 
-void ScanResultsWiFiInfo::setup() {
-  wifi::global_wifi_component->add_on_wifi_scan_state_callback(
-      [this](const wifi::wifi_scan_vector_t<wifi::WiFiScanResult> &results) { this->state_callback_(results); });
-}
+void ScanResultsWiFiInfo::setup() { wifi::global_wifi_component->add_scan_results_listener(this); }
 
 void ScanResultsWiFiInfo::dump_config() { LOG_TEXT_SENSOR("", "Scan Results", this); }
 
-void ScanResultsWiFiInfo::state_callback_(const wifi::wifi_scan_vector_t<wifi::WiFiScanResult> &results) {
+void ScanResultsWiFiInfo::on_wifi_scan_results(const wifi::wifi_scan_vector_t<wifi::WiFiScanResult> &results) {
   std::string scan_results;
   for (const auto &scan : results) {
     if (scan.get_is_hidden())
@@ -85,33 +74,30 @@ void ScanResultsWiFiInfo::state_callback_(const wifi::wifi_scan_vector_t<wifi::W
  * SSIDWiFiInfo
  **************/
 
-void SSIDWiFiInfo::setup() {
-  wifi::global_wifi_component->add_on_wifi_connect_state_callback(
-      [this](const std::string &ssid, const wifi::bssid_t &bssid) { this->state_callback_(ssid); });
-}
+void SSIDWiFiInfo::setup() { wifi::global_wifi_component->add_connect_state_listener(this); }
 
 void SSIDWiFiInfo::dump_config() { LOG_TEXT_SENSOR("", "SSID", this); }
 
-void SSIDWiFiInfo::state_callback_(const std::string &ssid) { this->publish_state(ssid); }
+void SSIDWiFiInfo::on_wifi_connect_state(const std::string &ssid, const wifi::bssid_t &bssid) {
+  this->publish_state(ssid);
+}
 
 /****************
  * BSSIDWiFiInfo
  ***************/
 
-void BSSIDWiFiInfo::setup() {
-  wifi::global_wifi_component->add_on_wifi_connect_state_callback(
-      [this](const std::string &ssid, const wifi::bssid_t &bssid) { this->state_callback_(bssid); });
-}
+void BSSIDWiFiInfo::setup() { wifi::global_wifi_component->add_connect_state_listener(this); }
 
 void BSSIDWiFiInfo::dump_config() { LOG_TEXT_SENSOR("", "BSSID", this); }
 
-void BSSIDWiFiInfo::state_callback_(const wifi::bssid_t &bssid) {
+void BSSIDWiFiInfo::on_wifi_connect_state(const std::string &ssid, const wifi::bssid_t &bssid) {
   char buf[18] = "unknown";
   if (mac_address_is_valid(bssid.data())) {
     format_mac_addr_upper(bssid.data(), buf);
   }
   this->publish_state(buf);
 }
+
 /*********************
  * MacAddressWifiInfo
  ********************/

esphome/components/wifi_info/wifi_info_text_sensor.h

@@ -9,55 +9,61 @@
 
 namespace esphome::wifi_info {
 
-class IPAddressWiFiInfo : public Component, public text_sensor::TextSensor {
+class IPAddressWiFiInfo final : public Component, public text_sensor::TextSensor, public wifi::WiFiIPStateListener {
  public:
   void setup() override;
   void dump_config() override;
   void add_ip_sensors(uint8_t index, text_sensor::TextSensor *s) { this->ip_sensors_[index] = s; }
 
+  // WiFiIPStateListener interface
+  void on_ip_state(const network::IPAddresses &ips, const network::IPAddress &dns1,
+                   const network::IPAddress &dns2) override;
+
  protected:
-  void state_callback_(const network::IPAddresses &ips);
   std::array<text_sensor::TextSensor *, 5> ip_sensors_;
 };
 
-class DNSAddressWifiInfo : public Component, public text_sensor::TextSensor {
+class DNSAddressWifiInfo final : public Component, public text_sensor::TextSensor, public wifi::WiFiIPStateListener {
  public:
   void setup() override;
   void dump_config() override;
 
- protected:
-  void state_callback_(const network::IPAddress &dns1_ip, const network::IPAddress &dns2_ip);
+  // WiFiIPStateListener interface
+  void on_ip_state(const network::IPAddresses &ips, const network::IPAddress &dns1,
+                   const network::IPAddress &dns2) override;
 };
 
-class ScanResultsWiFiInfo : public Component, public text_sensor::TextSensor {
+class ScanResultsWiFiInfo final : public Component,
+                                  public text_sensor::TextSensor,
+                                  public wifi::WiFiScanResultsListener {
  public:
   void setup() override;
   float get_setup_priority() const override { return setup_priority::AFTER_WIFI; }
   void dump_config() override;
 
- protected:
-  void state_callback_(const wifi::wifi_scan_vector_t<wifi::WiFiScanResult> &results);
+  // WiFiScanResultsListener interface
+  void on_wifi_scan_results(const wifi::wifi_scan_vector_t<wifi::WiFiScanResult> &results) override;
 };
 
-class SSIDWiFiInfo : public Component, public text_sensor::TextSensor {
+class SSIDWiFiInfo final : public Component, public text_sensor::TextSensor, public wifi::WiFiConnectStateListener {
  public:
   void setup() override;
   void dump_config() override;
 
- protected:
-  void state_callback_(const std::string &ssid);
+  // WiFiConnectStateListener interface
+  void on_wifi_connect_state(const std::string &ssid, const wifi::bssid_t &bssid) override;
 };
 
-class BSSIDWiFiInfo : public Component, public text_sensor::TextSensor {
+class BSSIDWiFiInfo final : public Component, public text_sensor::TextSensor, public wifi::WiFiConnectStateListener {
  public:
   void setup() override;
   void dump_config() override;
 
- protected:
-  void state_callback_(const wifi::bssid_t &bssid);
+  // WiFiConnectStateListener interface
+  void on_wifi_connect_state(const std::string &ssid, const wifi::bssid_t &bssid) override;
 };
 
-class MacAddressWifiInfo : public Component, public text_sensor::TextSensor {
+class MacAddressWifiInfo final : public Component, public text_sensor::TextSensor {
  public:
   void setup() override {
     char mac_s[18];

esphome/core/automation.h

@@ -11,10 +11,26 @@
 
 namespace esphome {
 
+// C++20 std::index_sequence is now used for tuple unpacking
+// Legacy seq<>/gens<> pattern deprecated but kept for backwards compatibility
 // https://stackoverflow.com/questions/7858817/unpacking-a-tuple-to-call-a-matching-function-pointer/7858971#7858971
-template<int...> struct seq {};                                       // NOLINT
-template<int N, int... S> struct gens : gens<N - 1, N - 1, S...> {};  // NOLINT
-template<int... S> struct gens<0, S...> { using type = seq<S...>; };  // NOLINT
+// Remove before 2026.6.0
+// NOLINTBEGIN(readability-identifier-naming)
+#if defined(__GNUC__) || defined(__clang__)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#endif
+
+template<int...> struct ESPDEPRECATED("Use std::index_sequence instead. Removed in 2026.6.0", "2025.12.0") seq {};
+template<int N, int... S>
+struct ESPDEPRECATED("Use std::make_index_sequence instead. Removed in 2026.6.0", "2025.12.0") gens
+    : gens<N - 1, N - 1, S...> {};
+template<int... S> struct gens<0, S...> { using type = seq<S...>; };
+
+#if defined(__GNUC__) || defined(__clang__)
+#pragma GCC diagnostic pop
+#endif
+// NOLINTEND(readability-identifier-naming)
 
 #define TEMPLATABLE_VALUE_(type, name) \
  protected: \
@@ -152,11 +168,11 @@ template<typename... Ts> class Condition {
 
   /// Call check with a tuple of values as parameter.
   bool check_tuple(const std::tuple<Ts...> &tuple) {
-    return this->check_tuple_(tuple, typename gens<sizeof...(Ts)>::type());
+    return this->check_tuple_(tuple, std::make_index_sequence<sizeof...(Ts)>{});
   }
 
  protected:
-  template<int... S> bool check_tuple_(const std::tuple<Ts...> &tuple, seq<S...> /*unused*/) {
+  template<size_t... S> bool check_tuple_(const std::tuple<Ts...> &tuple, std::index_sequence<S...> /*unused*/) {
     return this->check(std::get<S>(tuple)...);
   }
 };
@@ -231,11 +247,11 @@ template<typename... Ts> class Action {
       }
     }
   }
-  template<int... S> void play_next_tuple_(const std::tuple<Ts...> &tuple, seq<S...> /*unused*/) {
+  template<size_t... S> void play_next_tuple_(const std::tuple<Ts...> &tuple, std::index_sequence<S...> /*unused*/) {
     this->play_next_(std::get<S>(tuple)...);
   }
   void play_next_tuple_(const std::tuple<Ts...> &tuple) {
-    this->play_next_tuple_(tuple, typename gens<sizeof...(Ts)>::type());
+    this->play_next_tuple_(tuple, std::make_index_sequence<sizeof...(Ts)>{});
   }
 
   virtual void stop() {}
@@ -277,7 +293,9 @@ template<typename... Ts> class ActionList {
     if (this->actions_begin_ != nullptr)
       this->actions_begin_->play_complex(x...);
   }
-  void play_tuple(const std::tuple<Ts...> &tuple) { this->play_tuple_(tuple, typename gens<sizeof...(Ts)>::type()); }
+  void play_tuple(const std::tuple<Ts...> &tuple) {
+    this->play_tuple_(tuple, std::make_index_sequence<sizeof...(Ts)>{});
+  }
   void stop() {
     if (this->actions_begin_ != nullptr)
       this->actions_begin_->stop_complex();
@@ -298,7 +316,7 @@ template<typename... Ts> class ActionList {
   }
 
  protected:
-  template<int... S> void play_tuple_(const std::tuple<Ts...> &tuple, seq<S...> /*unused*/) {
+  template<size_t... S> void play_tuple_(const std::tuple<Ts...> &tuple, std::index_sequence<S...> /*unused*/) {
     this->play(std::get<S>(tuple)...);
   }
 

esphome/core/defines.h

@@ -51,6 +51,7 @@
 #define USE_LIGHT
 #define USE_LOCK
 #define USE_LOGGER
+#define USE_LOGGER_LEVEL_LISTENERS
 #define USE_LOGGER_RUNTIME_TAG_LEVELS
 #define USE_LVGL
 #define USE_LVGL_ANIMIMG
@@ -210,7 +211,7 @@
 #define USE_WEBSERVER_SORTING
 #define USE_WIFI_11KV_SUPPORT
 #define USE_WIFI_FAST_CONNECT
-#define USE_WIFI_CALLBACKS
+#define USE_WIFI_LISTENERS
 #define USE_WIFI_RUNTIME_POWER_SAVE
 #define USB_HOST_MAX_REQUESTS 16
 

esphome/core/scheduler.cpp

@@ -359,8 +359,7 @@ void HOT Scheduler::call(uint32_t now) {
       std::unique_ptr<SchedulerItem> item;
       {
         LockGuard guard{this->lock_};
-        item = std::move(this->items_[0]);
-        this->pop_raw_();
+        item = this->pop_raw_locked_();
       }
 
       const char *name = item->get_name();
@@ -401,7 +400,7 @@ void HOT Scheduler::call(uint32_t now) {
     // Don't run on failed components
     if (item->component != nullptr && item->component->is_failed()) {
       LockGuard guard{this->lock_};
-      this->pop_raw_();
+      this->recycle_item_(this->pop_raw_locked_());
       continue;
     }
 
@@ -414,7 +413,7 @@ void HOT Scheduler::call(uint32_t now) {
     {
       LockGuard guard{this->lock_};
       if (is_item_removed_(item.get())) {
-        this->pop_raw_();
+        this->recycle_item_(this->pop_raw_locked_());
         this->to_remove_--;
         continue;
       }
@@ -423,7 +422,7 @@ void HOT Scheduler::call(uint32_t now) {
     // Single-threaded or multi-threaded with atomics: can check without lock
     if (is_item_removed_(item.get())) {
       LockGuard guard{this->lock_};
-      this->pop_raw_();
+      this->recycle_item_(this->pop_raw_locked_());
       this->to_remove_--;
       continue;
     }
@@ -443,14 +442,14 @@ void HOT Scheduler::call(uint32_t now) {
 
     LockGuard guard{this->lock_};
 
-    auto executed_item = std::move(this->items_[0]);
     // Only pop after function call, this ensures we were reachable
     // during the function call and know if we were cancelled.
-    this->pop_raw_();
+    auto executed_item = this->pop_raw_locked_();
 
     if (executed_item->remove) {
-      // We were removed/cancelled in the function call, stop
+      // We were removed/cancelled in the function call, recycle and continue
       this->to_remove_--;
+      this->recycle_item_(std::move(executed_item));
       continue;
     }
 
@@ -497,7 +496,7 @@ size_t HOT Scheduler::cleanup_() {
     return this->items_.size();
 
   // We must hold the lock for the entire cleanup operation because:
-  // 1. We're modifying items_ (via pop_raw_) which requires exclusive access
+  // 1. We're modifying items_ (via pop_raw_locked_) which requires exclusive access
   // 2. We're decrementing to_remove_ which is also modified by other threads
   //    (though all modifications are already under lock)
   // 3. Other threads read items_ when searching for items to cancel in cancel_item_locked_()
@@ -510,17 +509,18 @@ size_t HOT Scheduler::cleanup_() {
     if (!item->remove)
       break;
     this->to_remove_--;
-    this->pop_raw_();
+    this->recycle_item_(this->pop_raw_locked_());
   }
   return this->items_.size();
 }
-void HOT Scheduler::pop_raw_() {
+std::unique_ptr<Scheduler::SchedulerItem> HOT Scheduler::pop_raw_locked_() {
   std::pop_heap(this->items_.begin(), this->items_.end(), SchedulerItem::cmp);
 
-  // Instead of destroying, recycle the item
-  this->recycle_item_(std::move(this->items_.back()));
+  // Move the item out before popping - this is the item that was at the front of the heap
+  auto item = std::move(this->items_.back());
 
   this->items_.pop_back();
+  return item;
 }
 
 // Helper to execute a scheduler item

esphome/core/scheduler.h

@@ -219,7 +219,9 @@ class Scheduler {
   // Returns the number of items remaining after cleanup
   // IMPORTANT: This method should only be called from the main thread (loop task).
   size_t cleanup_();
-  void pop_raw_();
+  // Remove and return the front item from the heap
+  // IMPORTANT: Caller must hold the scheduler lock before calling this function.
+  std::unique_ptr<SchedulerItem> pop_raw_locked_();
 
  private:
   // Helper to cancel items by name - must be called with lock held

esphome/cpp_generator.py

@@ -659,7 +659,7 @@ async def get_variable_with_full_id(id_: ID) -> tuple[ID, "MockObj"]:
 async def process_lambda(
     value: Lambda,
     parameters: TemplateArgsType,
-    capture: str = "=",
+    capture: str = "",
     return_type: SafeExpType = None,
 ) -> LambdaExpression | None:
     """Process the given lambda value into a LambdaExpression.
@@ -702,12 +702,6 @@ async def process_lambda(
             parts[i * 3 + 1] = var
         parts[i * 3 + 2] = ""
 
-    # All id() references are global variables in generated C++ code.
-    # Global variables should not be captured - they're accessible everywhere.
-    # Use empty capture instead of capture-by-value.
-    if capture == "=":
-        capture = ""
-
     if isinstance(value, ESPHomeDataBase) and value.esp_range is not None:
         location = value.esp_range.start_mark
         location.line += value.content_offset

script/api_protobuf/api_protobuf.py

@@ -2769,8 +2769,8 @@ static const char *const TAG = "api.service";
     cases = list(RECEIVE_CASES.items())
     cases.sort()
     hpp += " protected:\n"
-    hpp += "  void read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) override;\n"
-    out = f"void {class_name}::read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) {{\n"
+    hpp += "  void read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) override;\n"
+    out = f"void {class_name}::read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) {{\n"
     out += "  switch (msg_type) {\n"
     for i, (case, ifdef, message_name) in cases:
         if ifdef is not None:
@@ -2878,9 +2878,9 @@ static const char *const TAG = "api.service";
                     result += "#endif\n"
             return result
 
-        hpp_protected += "  void read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) override;\n"
+        hpp_protected += "  void read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) override;\n"
 
-        cpp += f"\nvoid {class_name}::read_message(uint32_t msg_size, uint32_t msg_type, uint8_t *msg_data) {{\n"
+        cpp += f"\nvoid {class_name}::read_message(uint32_t msg_size, uint32_t msg_type, const uint8_t *msg_data) {{\n"
         cpp += "  // Check authentication/connection requirements for messages\n"
         cpp += "  switch (msg_type) {\n"
 

tests/component_tests/packages/test_packages.py

@@ -95,7 +95,7 @@ def test_package_invalid_dict(basic_esphome, basic_wifi):
 
 
 @pytest.mark.parametrize(
-    "package",
+    "packages",
     [
         {"package1": "github://esphome/non-existant-repo/file1.yml@main"},
         {"package2": "github://esphome/non-existant-repo/file1.yml"},
@@ -107,12 +107,12 @@ def test_package_invalid_dict(basic_esphome, basic_wifi):
         ],
     ],
 )
-def test_package_shorthand(package):
-    CONFIG_SCHEMA(package)
+def test_package_shorthand(packages):
+    CONFIG_SCHEMA(packages)
 
 
 @pytest.mark.parametrize(
-    "package",
+    "packages",
     [
         # not github
         {"package1": "someplace://esphome/non-existant-repo/file1.yml@main"},
@@ -133,9 +133,9 @@ def test_package_shorthand(package):
         [3],
     ],
 )
-def test_package_invalid(package):
+def test_package_invalid(packages):
     with pytest.raises(cv.Invalid):
-        CONFIG_SCHEMA(package)
+        CONFIG_SCHEMA(packages)
 
 
 def test_package_include(basic_wifi, basic_esphome):
@@ -155,6 +155,33 @@ def test_package_include(basic_wifi, basic_esphome):
     assert actual == expected
 
 
+def test_single_package(
+    basic_esphome,
+    basic_wifi,
+    caplog: pytest.LogCaptureFixture,
+):
+    """
+    Tests the simple case where a single package is added to the top-level config as is.
+    In this test, the CONF_WIFI config is expected to be simply added to the top-level config.
+    This tests the case where the user just put packages: !include package.yaml, not
+    part of a list or mapping of packages.
+    This behavior is deprecated, the test also checks if a warning is issued.
+    """
+    config = {CONF_ESPHOME: basic_esphome, CONF_PACKAGES: {CONF_WIFI: basic_wifi}}
+
+    expected = {CONF_ESPHOME: basic_esphome, CONF_WIFI: basic_wifi}
+
+    with caplog.at_level("WARNING"):
+        actual = packages_pass(config)
+
+    assert actual == expected
+
+    assert (
+        "Including a single package under `packages:` is deprecated. Use a list instead."
+        in caplog.text
+    )
+
+
 def test_package_append(basic_wifi, basic_esphome):
     """
     Tests the case where a key is present in both a package and top-level config.

tests/components/epaper_spi/test.esp32-s3-idf.yaml

@@ -19,3 +19,8 @@ display:
 
   - platform: epaper_spi
     model: seeed-reterminal-e1002
+  - platform: epaper_spi
+    model: seeed-ee04-mono-4.26
+    # Override pins to avoid conflict with other display configs
+    busy_pin: 43
+    dc_pin: 42