fix scheduler heap churn with rapid timeouts

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/actions/restore-python/action.yml

@@ -17,7 +17,7 @@ runs:
   steps:
     - name: Set up Python ${{ inputs.python-version }}
       id: python
-      uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+      uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
       with:
         python-version: ${{ inputs.python-version }}
     - name: Restore Python virtual environment

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

@@ -26,7 +26,7 @@ jobs:
 
       - name: Generate a token
         id: generate-token
-        uses: actions/create-github-app-token@67018539274d69449ef7c02e8e71183d1719ab42 # v2
+        uses: actions/create-github-app-token@7e473efe3cb98aa54f8d4bac15400b15fad77d94 # v2
         with:
           app-id: ${{ secrets.ESPHOME_GITHUB_APP_ID }}
           private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}

.github/workflows/ci-api-proto.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: "3.11"
 

.github/workflows/ci-clang-tidy-hash.yml

@@ -24,7 +24,7 @@ jobs:
         uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
 
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: "3.11"
 

.github/workflows/ci-docker.yml

@@ -45,7 +45,7 @@ jobs:
     steps:
       - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: "3.11"
       - name: Set up Docker Buildx

.github/workflows/ci.yml

@@ -42,7 +42,7 @@ jobs:
         run: echo key="${{ hashFiles('requirements.txt', 'requirements_test.txt', '.pre-commit-config.yaml') }}" >> $GITHUB_OUTPUT
       - name: Set up Python ${{ env.DEFAULT_PYTHON }}
         id: python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: ${{ env.DEFAULT_PYTHON }}
       - name: Restore Python virtual environment
@@ -240,7 +240,7 @@ jobs:
         uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: Set up Python 3.13
         id: python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: "3.13"
       - name: Restore Python virtual environment

.github/workflows/codeql.yml

@@ -58,7 +58,7 @@ jobs:
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
-        uses: github/codeql-action/init@e12f0178983d466f2f6028f5cc7a6d786fd97f4b # v4.31.4
+        uses: github/codeql-action/init@fdbfb4d2750291e159f0156def62b853c2798ca2 # v4.31.5
         with:
           languages: ${{ matrix.language }}
           build-mode: ${{ matrix.build-mode }}
@@ -86,6 +86,6 @@ jobs:
           exit 1
 
       - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@e12f0178983d466f2f6028f5cc7a6d786fd97f4b # v4.31.4
+        uses: github/codeql-action/analyze@fdbfb4d2750291e159f0156def62b853c2798ca2 # v4.31.5
         with:
           category: "/language:${{matrix.language}}"

.github/workflows/release.yml

@@ -62,7 +62,7 @@ jobs:
     steps:
       - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: "3.x"
       - name: Build
@@ -94,7 +94,7 @@ jobs:
     steps:
       - uses: actions/checkout@1af3b93b6815bc44a9784bd300feb67ff0d1eeb3 # v6.0.0
       - name: Set up Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: "3.11"
 

.github/workflows/sync-device-classes.yml

@@ -22,7 +22,7 @@ jobs:
           path: lib/home-assistant
 
       - name: Setup Python
-        uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
+        uses: actions/setup-python@83679a892e2d95755f2dac6acb0bfd1e9ac5d548 # v6.1.0
         with:
           python-version: 3.13
 
@@ -41,7 +41,7 @@ jobs:
           python script/run-in-env.py pre-commit run --all-files
 
       - name: Commit changes
-        uses: peter-evans/create-pull-request@271a8d0340265f705b14b6d32b9829c1cb33d45e # v7.0.8
+        uses: peter-evans/create-pull-request@84ae59a2cdc2258d6fa0732dd66352dddae2a412 # v7.0.9
         with:
           commit-message: "Synchronise Device Classes from Home Assistant"
           committer: esphomebot <esphome@openhomefoundation.org>

CODEOWNERS

@@ -72,6 +72,7 @@ esphome/components/bl0942/* @dbuezas @dwmw2
 esphome/components/ble_client/* @buxtronix @clydebarrow
 esphome/components/ble_nus/* @tomaszduda23
 esphome/components/bluetooth_proxy/* @bdraco @jesserockz
+esphome/components/bm8563/* @abmantis
 esphome/components/bme280_base/* @esphome/core
 esphome/components/bme280_spi/* @apbodrov
 esphome/components/bme680_bsec/* @trvrnrth
@@ -483,6 +484,7 @@ esphome/components/template/datetime/* @rfdarter
 esphome/components/template/event/* @nohat
 esphome/components/template/fan/* @ssieb
 esphome/components/text/* @mauritskorse
+esphome/components/thermopro_ble/* @sittner
 esphome/components/thermostat/* @kbx81
 esphome/components/time/* @esphome/core
 esphome/components/tinyusb/* @kbx81

esphome/__main__.py

@@ -1319,7 +1319,7 @@ def parse_args(argv):
         "clean-all", help="Clean all build and platform files."
     )
     parser_clean_all.add_argument(
-        "configuration", help="Your YAML configuration directory.", nargs="*"
+        "configuration", help="Your YAML file or configuration directory.", nargs="*"
     )
 
     parser_dashboard = subparsers.add_parser(

esphome/components/absolute_humidity/absolute_humidity.cpp

@@ -87,7 +87,7 @@ void AbsoluteHumidityComponent::loop() {
       break;
     default:
       this->publish_state(NAN);
-      this->status_set_error("Invalid saturation vapor pressure equation selection!");
+      this->status_set_error(LOG_STR("Invalid saturation vapor pressure equation selection!"));
       return;
   }
   ESP_LOGD(TAG, "Saturation vapor pressure %f kPa", es);

esphome/components/aht10/aht10.cpp

@@ -83,7 +83,7 @@ void AHT10Component::setup() {
 void AHT10Component::restart_read_() {
   if (this->read_count_ == AHT10_ATTEMPTS) {
     this->read_count_ = 0;
-    this->status_set_error("Reading timed out");
+    this->status_set_error(LOG_STR("Reading timed out"));
     return;
   }
   this->read_count_++;

esphome/components/api/__init__.py

@@ -85,6 +85,7 @@ CONF_HOMEASSISTANT_SERVICES = "homeassistant_services"
 CONF_HOMEASSISTANT_STATES = "homeassistant_states"
 CONF_LISTEN_BACKLOG = "listen_backlog"
 CONF_MAX_SEND_QUEUE = "max_send_queue"
+CONF_STATE_SUBSCRIPTION_ONLY = "state_subscription_only"
 
 
 def validate_encryption_key(value):
@@ -260,9 +261,9 @@ async def to_code(config):
         cg.add(var.set_max_connections(config[CONF_MAX_CONNECTIONS]))
     cg.add_define("API_MAX_SEND_QUEUE", config[CONF_MAX_SEND_QUEUE])
 
-    # Set USE_API_SERVICES if any services are enabled
+    # Set USE_API_USER_DEFINED_ACTIONS if any services are enabled
     if config.get(CONF_ACTIONS) or config[CONF_CUSTOM_SERVICES]:
-        cg.add_define("USE_API_SERVICES")
+        cg.add_define("USE_API_USER_DEFINED_ACTIONS")
 
     # Set USE_API_CUSTOM_SERVICES if external components need dynamic service registration
     if config[CONF_CUSTOM_SERVICES]:
@@ -537,9 +538,24 @@ async def homeassistant_tag_scanned_to_code(config, action_id, template_arg, arg
     return var
 
 
-@automation.register_condition("api.connected", APIConnectedCondition, {})
+API_CONNECTED_CONDITION_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(): cv.use_id(APIServer),
+        cv.Optional(CONF_STATE_SUBSCRIPTION_ONLY, default=False): cv.templatable(
+            cv.boolean
+        ),
+    }
+)
+
+
+@automation.register_condition(
+    "api.connected", APIConnectedCondition, API_CONNECTED_CONDITION_SCHEMA
+)
 async def api_connected_to_code(config, condition_id, template_arg, args):
-    return cg.new_Pvariable(condition_id, template_arg)
+    var = cg.new_Pvariable(condition_id, template_arg)
+    templ = await cg.templatable(config[CONF_STATE_SUBSCRIPTION_ONLY], args, cg.bool_)
+    cg.add(var.set_state_subscription_only(templ))
+    return var
 
 
 def FILTER_SOURCE_FILES() -> list[str]:

esphome/components/api/api.proto

@@ -518,7 +518,7 @@ message ListEntitiesLightResponse {
   bool legacy_supports_color_temperature = 8 [deprecated=true];
   float min_mireds = 9;
   float max_mireds = 10;
-  repeated string effects = 11;
+  repeated string effects = 11 [(container_pointer_no_template) = "FixedVector<const char *>"];
   bool disabled_by_default = 13;
   string icon = 14 [(field_ifdef) = "USE_ENTITY_ICON"];
   EntityCategory entity_category = 15;
@@ -855,21 +855,21 @@ enum ServiceArgType {
   SERVICE_ARG_TYPE_STRING_ARRAY = 7;
 }
 message ListEntitiesServicesArgument {
-  option (ifdef) = "USE_API_SERVICES";
+  option (ifdef) = "USE_API_USER_DEFINED_ACTIONS";
   string name = 1;
   ServiceArgType type = 2;
 }
 message ListEntitiesServicesResponse {
   option (id) = 41;
   option (source) = SOURCE_SERVER;
-  option (ifdef) = "USE_API_SERVICES";
+  option (ifdef) = "USE_API_USER_DEFINED_ACTIONS";
 
   string name = 1;
   fixed32 key = 2;
   repeated ListEntitiesServicesArgument args = 3 [(fixed_vector) = true];
 }
 message ExecuteServiceArgument {
-  option (ifdef) = "USE_API_SERVICES";
+  option (ifdef) = "USE_API_USER_DEFINED_ACTIONS";
   bool bool_ = 1;
   int32 legacy_int = 2;
   float float_ = 3;
@@ -885,7 +885,7 @@ message ExecuteServiceRequest {
   option (id) = 42;
   option (source) = SOURCE_CLIENT;
   option (no_delay) = true;
-  option (ifdef) = "USE_API_SERVICES";
+  option (ifdef) = "USE_API_USER_DEFINED_ACTIONS";
 
   fixed32 key = 1;
   repeated ExecuteServiceArgument args = 2 [(fixed_vector) = true];

esphome/components/api/api_connection.cpp

@@ -90,8 +90,8 @@ static const int CAMERA_STOP_STREAM = 5000;
 APIConnection::APIConnection(std::unique_ptr<socket::Socket> sock, APIServer *parent)
     : parent_(parent), initial_state_iterator_(this), list_entities_iterator_(this) {
 #if defined(USE_API_PLAINTEXT) && defined(USE_API_NOISE)
-  auto noise_ctx = parent->get_noise_ctx();
-  if (noise_ctx->has_psk()) {
+  auto &noise_ctx = parent->get_noise_ctx();
+  if (noise_ctx.has_psk()) {
     this->helper_ =
         std::unique_ptr<APIFrameHelper>{new APINoiseFrameHelper(std::move(sock), noise_ctx, &this->client_info_)};
   } else {
@@ -484,12 +484,16 @@ uint16_t APIConnection::try_send_light_info(EntityBase *entity, APIConnection *c
     msg.min_mireds = traits.get_min_mireds();
     msg.max_mireds = traits.get_max_mireds();
   }
+  FixedVector<const char *> effects_list;
   if (light->supports_effects()) {
-    msg.effects.emplace_back("None");
-    for (auto *effect : light->get_effects()) {
-      msg.effects.emplace_back(effect->get_name());
+    auto &light_effects = light->get_effects();
+    effects_list.init(light_effects.size() + 1);
+    effects_list.push_back("None");
+    for (auto *effect : light_effects) {
+      effects_list.push_back(effect->get_name());
     }
   }
+  msg.effects = &effects_list;
   return fill_and_encode_entity_info(light, msg, ListEntitiesLightResponse::MESSAGE_TYPE, conn, remaining_size,
                                      is_single);
 }
@@ -1451,8 +1455,11 @@ bool APIConnection::send_device_info_response(const DeviceInfoRequest &msg) {
 #ifdef USE_AREAS
   resp.set_suggested_area(StringRef(App.get_area()));
 #endif
-  // mac_address must store temporary string - will be valid during send_message call
-  std::string mac_address = get_mac_address_pretty();
+  // Stack buffer for MAC address (XX:XX:XX:XX:XX:XX\0 = 18 bytes)
+  char mac_address[18];
+  uint8_t mac[6];
+  get_mac_address_raw(mac);
+  format_mac_addr_upper(mac, mac_address);
   resp.set_mac_address(StringRef(mac_address));
 
   resp.set_esphome_version(ESPHOME_VERSION_REF);
@@ -1493,8 +1500,9 @@ bool APIConnection::send_device_info_response(const DeviceInfoRequest &msg) {
 #endif
 #ifdef USE_BLUETOOTH_PROXY
   resp.bluetooth_proxy_feature_flags = bluetooth_proxy::global_bluetooth_proxy->get_feature_flags();
-  // bt_mac must store temporary string - will be valid during send_message call
-  std::string bluetooth_mac = bluetooth_proxy::global_bluetooth_proxy->get_bluetooth_mac_address_pretty();
+  // Stack buffer for Bluetooth MAC address (XX:XX:XX:XX:XX:XX\0 = 18 bytes)
+  char bluetooth_mac[18];
+  bluetooth_proxy::global_bluetooth_proxy->get_bluetooth_mac_address_pretty(bluetooth_mac);
   resp.set_bluetooth_mac_address(StringRef(bluetooth_mac));
 #endif
 #ifdef USE_VOICE_ASSISTANT
@@ -1541,7 +1549,7 @@ void APIConnection::on_home_assistant_state_response(const HomeAssistantStateRes
   }
 }
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 void APIConnection::execute_service(const ExecuteServiceRequest &msg) {
   bool found = false;
   for (auto *service : this->parent_->get_user_services()) {

esphome/components/api/api_connection.h

@@ -221,7 +221,7 @@ class APIConnection final : public APIServerConnection {
 #ifdef USE_API_HOMEASSISTANT_STATES
   void subscribe_home_assistant_states(const SubscribeHomeAssistantStatesRequest &msg) override;
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   void execute_service(const ExecuteServiceRequest &msg) override;
 #endif
 #ifdef USE_API_NOISE

esphome/components/api/api_frame_helper.h

@@ -84,9 +84,7 @@ class APIFrameHelper {
  public:
   APIFrameHelper() = default;
   explicit APIFrameHelper(std::unique_ptr<socket::Socket> socket, const ClientInfo *client_info)
-      : socket_owned_(std::move(socket)), client_info_(client_info) {
-    socket_ = socket_owned_.get();
-  }
+      : socket_(std::move(socket)), client_info_(client_info) {}
   virtual ~APIFrameHelper() = default;
   virtual APIError init() = 0;
   virtual APIError loop();
@@ -149,9 +147,8 @@ class APIFrameHelper {
   APIError write_raw_(const struct iovec *iov, int iovcnt, socket::Socket *socket, std::vector<uint8_t> &tx_buf,
                       const std::string &info, StateEnum &state, StateEnum failed_state);
 
-  // Pointers first (4 bytes each)
-  socket::Socket *socket_{nullptr};
-  std::unique_ptr<socket::Socket> socket_owned_;
+  // Socket ownership (4 bytes on 32-bit, 8 bytes on 64-bit)
+  std::unique_ptr<socket::Socket> socket_;
 
   // Common state enum for all frame helpers
   // Note: Not all states are used by all implementations

esphome/components/api/api_frame_helper_noise.cpp

@@ -239,12 +239,13 @@ APIError APINoiseFrameHelper::state_action_() {
   }
   if (state_ == State::SERVER_HELLO) {
     // send server hello
+    constexpr size_t mac_len = 13;  // 12 hex chars + null terminator
     const std::string &name = App.get_name();
-    const std::string &mac = get_mac_address();
+    char mac[mac_len];
+    get_mac_address_into_buffer(mac);
 
     // Calculate positions and sizes
     size_t name_len = name.size() + 1;  // including null terminator
-    size_t mac_len = mac.size() + 1;    // including null terminator
     size_t name_offset = 1;
     size_t mac_offset = name_offset + name_len;
     size_t total_size = 1 + name_len + mac_len;
@@ -257,7 +258,7 @@ APIError APINoiseFrameHelper::state_action_() {
     // node name, terminated by null byte
     std::memcpy(msg.get() + name_offset, name.c_str(), name_len);
     // node mac, terminated by null byte
-    std::memcpy(msg.get() + mac_offset, mac.c_str(), mac_len);
+    std::memcpy(msg.get() + mac_offset, mac, mac_len);
 
     aerr = write_frame_(msg.get(), total_size);
     if (aerr != APIError::OK)
@@ -527,7 +528,7 @@ APIError APINoiseFrameHelper::init_handshake_() {
   if (aerr != APIError::OK)
     return aerr;
 
-  const auto &psk = ctx_->get_psk();
+  const auto &psk = this->ctx_.get_psk();
   err = noise_handshakestate_set_pre_shared_key(handshake_, psk.data(), psk.size());
   aerr = handle_noise_error_(err, LOG_STR("noise_handshakestate_set_pre_shared_key"),
                              APIError::HANDSHAKESTATE_SETUP_FAILED);

esphome/components/api/api_frame_helper_noise.h

@@ -9,9 +9,8 @@ namespace esphome::api {
 
 class APINoiseFrameHelper final : public APIFrameHelper {
  public:
-  APINoiseFrameHelper(std::unique_ptr<socket::Socket> socket, std::shared_ptr<APINoiseContext> ctx,
-                      const ClientInfo *client_info)
-      : APIFrameHelper(std::move(socket), client_info), ctx_(std::move(ctx)) {
+  APINoiseFrameHelper(std::unique_ptr<socket::Socket> socket, APINoiseContext &ctx, const ClientInfo *client_info)
+      : APIFrameHelper(std::move(socket), client_info), ctx_(ctx) {
     // Noise header structure:
     // Pos 0: indicator (0x01)
     // Pos 1-2: encrypted payload size (16-bit big-endian)
@@ -41,8 +40,8 @@ class APINoiseFrameHelper final : public APIFrameHelper {
   NoiseCipherState *send_cipher_{nullptr};
   NoiseCipherState *recv_cipher_{nullptr};
 
-  // Shared pointer (8 bytes on 32-bit = 4 bytes control block pointer + 4 bytes object pointer)
-  std::shared_ptr<APINoiseContext> ctx_;
+  // Reference to noise context (4 bytes on 32-bit)
+  APINoiseContext &ctx_;
 
   // Vector (12 bytes on 32-bit)
   std::vector<uint8_t> prologue_;

esphome/components/api/api_pb2.cpp

@@ -476,8 +476,8 @@ void ListEntitiesLightResponse::encode(ProtoWriteBuffer buffer) const {
   }
   buffer.encode_float(9, this->min_mireds);
   buffer.encode_float(10, this->max_mireds);
-  for (auto &it : this->effects) {
-    buffer.encode_string(11, it, true);
+  for (const char *it : *this->effects) {
+    buffer.encode_string(11, it, strlen(it), true);
   }
   buffer.encode_bool(13, this->disabled_by_default);
 #ifdef USE_ENTITY_ICON
@@ -499,9 +499,9 @@ void ListEntitiesLightResponse::calculate_size(ProtoSize &size) const {
   }
   size.add_float(1, this->min_mireds);
   size.add_float(1, this->max_mireds);
-  if (!this->effects.empty()) {
-    for (const auto &it : this->effects) {
-      size.add_length_force(1, it.size());
+  if (!this->effects->empty()) {
+    for (const char *it : *this->effects) {
+      size.add_length_force(1, strlen(it));
     }
   }
   size.add_bool(1, this->disabled_by_default);
@@ -995,7 +995,7 @@ bool GetTimeResponse::decode_32bit(uint32_t field_id, Proto32Bit value) {
   }
   return true;
 }
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 void ListEntitiesServicesArgument::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_string(1, this->name_ref_);
   buffer.encode_uint32(2, static_cast<uint32_t>(this->type));

esphome/components/api/api_pb2.h

@@ -63,7 +63,7 @@ enum LogLevel : uint32_t {
   LOG_LEVEL_VERBOSE = 6,
   LOG_LEVEL_VERY_VERBOSE = 7,
 };
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 enum ServiceArgType : uint32_t {
   SERVICE_ARG_TYPE_BOOL = 0,
   SERVICE_ARG_TYPE_INT = 1,
@@ -793,7 +793,7 @@ class ListEntitiesLightResponse final : public InfoResponseProtoMessage {
   const light::ColorModeMask *supported_color_modes{};
   float min_mireds{0.0f};
   float max_mireds{0.0f};
-  std::vector<std::string> effects{};
+  const FixedVector<const char *> *effects{};
   void encode(ProtoWriteBuffer buffer) const override;
   void calculate_size(ProtoSize &size) const override;
 #ifdef HAS_PROTO_MESSAGE_DUMP
@@ -1239,7 +1239,7 @@ class GetTimeResponse final : public ProtoDecodableMessage {
   bool decode_32bit(uint32_t field_id, Proto32Bit value) override;
   bool decode_length(uint32_t field_id, ProtoLengthDelimited value) override;
 };
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 class ListEntitiesServicesArgument final : public ProtoMessage {
  public:
   StringRef name_ref_{};

esphome/components/api/api_pb2_dump.cpp

@@ -206,7 +206,7 @@ template<> const char *proto_enum_to_string<enums::LogLevel>(enums::LogLevel val
       return "UNKNOWN";
   }
 }
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 template<> const char *proto_enum_to_string<enums::ServiceArgType>(enums::ServiceArgType value) {
   switch (value) {
     case enums::SERVICE_ARG_TYPE_BOOL:
@@ -924,7 +924,7 @@ void ListEntitiesLightResponse::dump_to(std::string &out) const {
   }
   dump_field(out, "min_mireds", this->min_mireds);
   dump_field(out, "max_mireds", this->max_mireds);
-  for (const auto &it : this->effects) {
+  for (const auto &it : *this->effects) {
     dump_field(out, "effects", it, 4);
   }
   dump_field(out, "disabled_by_default", this->disabled_by_default);
@@ -1177,7 +1177,7 @@ void GetTimeResponse::dump_to(std::string &out) const {
   out.append(format_hex_pretty(this->timezone, this->timezone_len));
   out.append("\n");
 }
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 void ListEntitiesServicesArgument::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "ListEntitiesServicesArgument");
   dump_field(out, "name", this->name_ref_);

esphome/components/api/api_pb2_service.cpp

@@ -193,7 +193,7 @@ void APIServerConnectionBase::read_message(uint32_t msg_size, uint32_t msg_type,
       break;
     }
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
     case ExecuteServiceRequest::MESSAGE_TYPE: {
       ExecuteServiceRequest msg;
       msg.decode(msg_data, msg_size);
@@ -670,7 +670,7 @@ void APIServerConnection::on_subscribe_home_assistant_states_request(const Subsc
   this->subscribe_home_assistant_states(msg);
 }
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 void APIServerConnection::on_execute_service_request(const ExecuteServiceRequest &msg) { this->execute_service(msg); }
 #endif
 #ifdef USE_API_NOISE

esphome/components/api/api_pb2_service.h

@@ -79,7 +79,7 @@ class APIServerConnectionBase : public ProtoService {
 
   virtual void on_get_time_response(const GetTimeResponse &value){};
 
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   virtual void on_execute_service_request(const ExecuteServiceRequest &value){};
 #endif
 
@@ -239,7 +239,7 @@ class APIServerConnection : public APIServerConnectionBase {
 #ifdef USE_API_HOMEASSISTANT_STATES
   virtual void subscribe_home_assistant_states(const SubscribeHomeAssistantStatesRequest &msg) = 0;
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   virtual void execute_service(const ExecuteServiceRequest &msg) = 0;
 #endif
 #ifdef USE_API_NOISE
@@ -368,7 +368,7 @@ class APIServerConnection : public APIServerConnectionBase {
 #ifdef USE_API_HOMEASSISTANT_STATES
   void on_subscribe_home_assistant_states_request(const SubscribeHomeAssistantStatesRequest &msg) override;
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   void on_execute_service_request(const ExecuteServiceRequest &msg) override;
 #endif
 #ifdef USE_API_NOISE

esphome/components/api/api_server.cpp

@@ -227,8 +227,8 @@ void APIServer::dump_config() {
                 "  Max connections: %u",
                 network::get_use_address(), this->port_, this->listen_backlog_, this->max_connections_);
 #ifdef USE_API_NOISE
-  ESP_LOGCONFIG(TAG, "  Noise encryption: %s", YESNO(this->noise_ctx_->has_psk()));
-  if (!this->noise_ctx_->has_psk()) {
+  ESP_LOGCONFIG(TAG, "  Noise encryption: %s", YESNO(this->noise_ctx_.has_psk()));
+  if (!this->noise_ctx_.has_psk()) {
     ESP_LOGCONFIG(TAG, "  Supports encryption: YES");
   }
 #else
@@ -493,7 +493,7 @@ bool APIServer::save_noise_psk(psk_t psk, bool make_active) {
   ESP_LOGW(TAG, "Key set in YAML");
   return false;
 #else
-  auto &old_psk = this->noise_ctx_->get_psk();
+  auto &old_psk = this->noise_ctx_.get_psk();
   if (std::equal(old_psk.begin(), old_psk.end(), psk.begin())) {
     ESP_LOGW(TAG, "New PSK matches old");
     return true;
@@ -528,7 +528,18 @@ void APIServer::request_time() {
 }
 #endif
 
-bool APIServer::is_connected() const { return !this->clients_.empty(); }
+bool APIServer::is_connected(bool state_subscription_only) const {
+  if (!state_subscription_only) {
+    return !this->clients_.empty();
+  }
+
+  for (const auto &client : this->clients_) {
+    if (client->flags_.state_subscription) {
+      return true;
+    }
+  }
+  return false;
+}
 
 void APIServer::on_shutdown() {
   this->shutting_down_ = true;

esphome/components/api/api_server.h

@@ -12,7 +12,7 @@
 #include "esphome/core/log.h"
 #include "list_entities.h"
 #include "subscribe_state.h"
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 #include "user_services.h"
 #endif
 
@@ -54,8 +54,8 @@ class APIServer : public Component, public Controller {
 #ifdef USE_API_NOISE
   bool save_noise_psk(psk_t psk, bool make_active = true);
   bool clear_noise_psk(bool make_active = true);
-  void set_noise_psk(psk_t psk) { noise_ctx_->set_psk(psk); }
-  std::shared_ptr<APINoiseContext> get_noise_ctx() { return noise_ctx_; }
+  void set_noise_psk(psk_t psk) { this->noise_ctx_.set_psk(psk); }
+  APINoiseContext &get_noise_ctx() { return this->noise_ctx_; }
 #endif  // USE_API_NOISE
 
   void handle_disconnect(APIConnection *conn);
@@ -124,7 +124,7 @@ class APIServer : public Component, public Controller {
 #endif  // USE_API_HOMEASSISTANT_ACTION_RESPONSES_JSON
 #endif  // USE_API_HOMEASSISTANT_ACTION_RESPONSES
 #endif  // USE_API_HOMEASSISTANT_SERVICES
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   void initialize_user_services(std::initializer_list<UserServiceDescriptor *> services) {
     this->user_services_.assign(services);
   }
@@ -150,7 +150,7 @@ class APIServer : public Component, public Controller {
   void on_zwave_proxy_request(const esphome::api::ProtoMessage &msg);
 #endif
 
-  bool is_connected() const;
+  bool is_connected(bool state_subscription_only = false) const;
 
 #ifdef USE_API_HOMEASSISTANT_STATES
   struct HomeAssistantStateSubscription {
@@ -166,7 +166,7 @@ class APIServer : public Component, public Controller {
                                 std::function<void(std::string)> f);
   const std::vector<HomeAssistantStateSubscription> &get_state_subs() const;
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   const std::vector<UserServiceDescriptor *> &get_user_services() const { return this->user_services_; }
 #endif
 
@@ -206,7 +206,7 @@ class APIServer : public Component, public Controller {
 #ifdef USE_API_HOMEASSISTANT_STATES
   std::vector<HomeAssistantStateSubscription> state_subs_;
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   std::vector<UserServiceDescriptor *> user_services_;
 #endif
 #ifdef USE_API_HOMEASSISTANT_ACTION_RESPONSES
@@ -228,7 +228,7 @@ class APIServer : public Component, public Controller {
   // 7 bytes used, 1 byte padding
 
 #ifdef USE_API_NOISE
-  std::shared_ptr<APINoiseContext> noise_ctx_ = std::make_shared<APINoiseContext>();
+  APINoiseContext noise_ctx_;
   ESPPreferenceObject noise_pref_;
 #endif  // USE_API_NOISE
 };
@@ -236,8 +236,11 @@ class APIServer : public Component, public Controller {
 extern APIServer *global_api_server;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 
 template<typename... Ts> class APIConnectedCondition : public Condition<Ts...> {
+  TEMPLATABLE_VALUE(bool, state_subscription_only)
  public:
-  bool check(const Ts &...x) override { return global_api_server->is_connected(); }
+  bool check(const Ts &...x) override {
+    return global_api_server->is_connected(this->state_subscription_only_.value(x...));
+  }
 };
 
 }  // namespace esphome::api

esphome/components/api/custom_api_device.h

@@ -3,12 +3,12 @@
 #include <map>
 #include "api_server.h"
 #ifdef USE_API
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 #include "user_services.h"
 #endif
 namespace esphome::api {
 
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 template<typename T, typename... Ts> class CustomAPIDeviceService : public UserServiceDynamic<Ts...> {
  public:
   CustomAPIDeviceService(const std::string &name, const std::array<std::string, sizeof...(Ts)> &arg_names, T *obj,
@@ -21,7 +21,7 @@ template<typename T, typename... Ts> class CustomAPIDeviceService : public UserS
   T *obj_;
   void (T::*callback_)(Ts...);
 };
-#endif  // USE_API_SERVICES
+#endif  // USE_API_USER_DEFINED_ACTIONS
 
 class CustomAPIDevice {
  public:
@@ -49,7 +49,7 @@ class CustomAPIDevice {
    * @param name The name of the service to register.
    * @param arg_names The name of the arguments for the service, must match the arguments of the function.
    */
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   template<typename T, typename... Ts>
   void register_service(void (T::*callback)(Ts...), const std::string &name,
                         const std::array<std::string, sizeof...(Ts)> &arg_names) {
@@ -90,7 +90,7 @@ class CustomAPIDevice {
    * @param callback The member function to call when the service is triggered.
    * @param name The name of the arguments for the service, must match the arguments of the function.
    */
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   template<typename T> void register_service(void (T::*callback)(), const std::string &name) {
 #ifdef USE_API_CUSTOM_SERVICES
     auto *service = new CustomAPIDeviceService<T>(name, {}, (T *) this, callback);  // NOLINT

esphome/components/api/list_entities.cpp

@@ -82,7 +82,7 @@ bool ListEntitiesIterator::on_end() { return this->client_->send_list_info_done(
 
 ListEntitiesIterator::ListEntitiesIterator(APIConnection *client) : client_(client) {}
 
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 bool ListEntitiesIterator::on_service(UserServiceDescriptor *service) {
   auto resp = service->encode_list_service_response();
   return this->client_->send_message(resp, ListEntitiesServicesResponse::MESSAGE_TYPE);

esphome/components/api/list_entities.h

@@ -43,7 +43,7 @@ class ListEntitiesIterator : public ComponentIterator {
 #ifdef USE_TEXT_SENSOR
   bool on_text_sensor(text_sensor::TextSensor *entity) override;
 #endif
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
   bool on_service(UserServiceDescriptor *service) override;
 #endif
 #ifdef USE_CAMERA

esphome/components/api/user_services.h

@@ -7,7 +7,7 @@
 #include "esphome/core/automation.h"
 #include "api_pb2.h"
 
-#ifdef USE_API_SERVICES
+#ifdef USE_API_USER_DEFINED_ACTIONS
 namespace esphome::api {
 
 class UserServiceDescriptor {
@@ -122,4 +122,4 @@ template<typename... Ts> class UserServiceTrigger : public UserServiceBase<Ts...
 };
 
 }  // namespace esphome::api
-#endif  // USE_API_SERVICES
+#endif  // USE_API_USER_DEFINED_ACTIONS

esphome/components/bh1900nux/bh1900nux.cpp

@@ -23,7 +23,7 @@ void BH1900NUXSensor::setup() {
   i2c::ErrorCode result_code =
       this->write_register(SOFT_RESET_REG, &SOFT_RESET_PAYLOAD, 1);  // Software Reset to check communication
   if (result_code != i2c::ERROR_OK) {
-    this->mark_failed(ESP_LOG_MSG_COMM_FAIL);
+    this->mark_failed(LOG_STR(ESP_LOG_MSG_COMM_FAIL));
     return;
   }
 }

esphome/components/ble_client/automation.h

@@ -122,16 +122,19 @@ template<typename... Ts> class BLEClientWriteAction : public Action<Ts...>, publ
   void play_complex(const Ts &...x) override {
     this->num_running_++;
     this->var_ = std::make_tuple(x...);
-    std::vector<uint8_t> value;
+
+    bool result;
     if (this->len_ >= 0) {
-      // Static mode: copy from flash to vector
-      value.assign(this->value_.data, this->value_.data + this->len_);
+      // Static mode: write directly from flash pointer
+      result = this->write(this->value_.data, this->len_);
     } else {
-      // Template mode: call function
-      value = this->value_.func(x...);
+      // Template mode: call function and write the vector
+      std::vector<uint8_t> value = this->value_.func(x...);
+      result = this->write(value);
     }
+
     // on write failure, continue the automation chain rather than stopping so that e.g. disconnect can work.
-    if (!write(value))
+    if (!result)
       this->play_next_(x...);
   }
 
@@ -144,15 +147,15 @@ template<typename... Ts> class BLEClientWriteAction : public Action<Ts...>, publ
    * errors.
    */
   // initiate the write. Return true if all went well, will be followed by a WRITE_CHAR event.
-  bool write(const std::vector<uint8_t> &value) {
+  bool write(const uint8_t *data, size_t len) {
     if (this->node_state != espbt::ClientState::ESTABLISHED) {
       esph_log_w(Automation::TAG, "Cannot write to BLE characteristic - not connected");
       return false;
     }
-    esph_log_vv(Automation::TAG, "Will write %d bytes: %s", value.size(), format_hex_pretty(value).c_str());
-    esp_err_t err = esp_ble_gattc_write_char(this->parent()->get_gattc_if(), this->parent()->get_conn_id(),
-                                             this->char_handle_, value.size(), const_cast<uint8_t *>(value.data()),
-                                             this->write_type_, ESP_GATT_AUTH_REQ_NONE);
+    esph_log_vv(Automation::TAG, "Will write %d bytes: %s", len, format_hex_pretty(data, len).c_str());
+    esp_err_t err =
+        esp_ble_gattc_write_char(this->parent()->get_gattc_if(), this->parent()->get_conn_id(), this->char_handle_, len,
+                                 const_cast<uint8_t *>(data), this->write_type_, ESP_GATT_AUTH_REQ_NONE);
     if (err != ESP_OK) {
       esph_log_e(Automation::TAG, "Error writing to characteristic: %s!", esp_err_to_name(err));
       return false;
@@ -160,6 +163,8 @@ template<typename... Ts> class BLEClientWriteAction : public Action<Ts...>, publ
     return true;
   }
 
+  bool write(const std::vector<uint8_t> &value) { return this->write(value.data(), value.size()); }
+
   void gattc_event_handler(esp_gattc_cb_event_t event, esp_gatt_if_t gattc_if,
                            esp_ble_gattc_cb_param_t *param) override {
     switch (event) {

esphome/components/bluetooth_proxy/bluetooth_proxy.h

@@ -130,11 +130,13 @@ class BluetoothProxy final : public esp32_ble_tracker::ESPBTDeviceListener, publ
     return flags;
   }
 
-  std::string get_bluetooth_mac_address_pretty() {
+  void get_bluetooth_mac_address_pretty(std::span<char, 18> output) {
     const uint8_t *mac = esp_bt_dev_get_address();
-    char buf[18];
-    format_mac_addr_upper(mac, buf);
-    return std::string(buf);
+    if (mac != nullptr) {
+      format_mac_addr_upper(mac, output.data());
+    } else {
+      output[0] = '\0';
+    }
   }
 
  protected:

esphome/components/bm8563/__init__.py

@@ -0,0 +1 @@
+CODEOWNERS = ["@abmantis"]

esphome/components/bm8563/bm8563.cpp

@@ -0,0 +1,198 @@
+#include "bm8563.h"
+#include "esphome/core/log.h"
+
+namespace esphome::bm8563 {
+
+static const char *const TAG = "bm8563";
+
+static constexpr uint8_t CONTROL_STATUS_1_REG = 0x00;
+static constexpr uint8_t CONTROL_STATUS_2_REG = 0x01;
+static constexpr uint8_t TIME_FIRST_REG = 0x02;  // Time uses reg 2, 3, 4
+static constexpr uint8_t DATE_FIRST_REG = 0x05;  // Date uses reg 5, 6, 7, 8
+static constexpr uint8_t TIMER_CONTROL_REG = 0x0E;
+static constexpr uint8_t TIMER_VALUE_REG = 0x0F;
+static constexpr uint8_t CLOCK_1_HZ = 0x82;
+static constexpr uint8_t CLOCK_1_60_HZ = 0x83;
+// Maximum duration: 255 minutes (at 1/60 Hz) = 15300 seconds
+static constexpr uint32_t MAX_TIMER_DURATION_S = 255 * 60;
+
+void BM8563::setup() {
+  if (!this->write_byte_16(CONTROL_STATUS_1_REG, 0)) {
+    this->mark_failed();
+    return;
+  }
+}
+
+void BM8563::update() { this->read_time(); }
+
+void BM8563::dump_config() {
+  ESP_LOGCONFIG(TAG, "BM8563:");
+  LOG_I2C_DEVICE(this);
+  if (this->is_failed()) {
+    ESP_LOGE(TAG, ESP_LOG_MSG_COMM_FAIL);
+  }
+}
+
+void BM8563::start_timer(uint32_t duration_s) {
+  this->clear_irq_();
+  this->set_timer_irq_(duration_s);
+}
+
+void BM8563::write_time() {
+  auto now = time::RealTimeClock::utcnow();
+  if (!now.is_valid()) {
+    ESP_LOGE(TAG, "Invalid system time, not syncing to RTC.");
+    return;
+  }
+
+  ESP_LOGD(TAG, "Writing time: %i-%i-%i %i, %i:%i:%i", now.year, now.month, now.day_of_month, now.day_of_week, now.hour,
+           now.minute, now.second);
+
+  this->set_time_(now);
+  this->set_date_(now);
+}
+
+void BM8563::read_time() {
+  ESPTime rtc_time;
+  this->get_time_(rtc_time);
+  this->get_date_(rtc_time);
+  rtc_time.day_of_year = 1;  // unused by recalc_timestamp_utc, but needs to be valid
+  ESP_LOGD(TAG, "Read time: %i-%i-%i %i, %i:%i:%i", rtc_time.year, rtc_time.month, rtc_time.day_of_month,
+           rtc_time.day_of_week, rtc_time.hour, rtc_time.minute, rtc_time.second);
+
+  rtc_time.recalc_timestamp_utc(false);
+  if (!rtc_time.is_valid()) {
+    ESP_LOGE(TAG, "Invalid RTC time, not syncing to system clock.");
+    return;
+  }
+  time::RealTimeClock::synchronize_epoch_(rtc_time.timestamp);
+}
+
+uint8_t BM8563::bcd2_to_byte_(uint8_t value) {
+  const uint8_t tmp = ((value & 0xF0) >> 0x4) * 10;
+  return tmp + (value & 0x0F);
+}
+
+uint8_t BM8563::byte_to_bcd2_(uint8_t value) {
+  const uint8_t bcdhigh = value / 10;
+  value -= bcdhigh * 10;
+  return (bcdhigh << 4) | value;
+}
+
+void BM8563::get_time_(ESPTime &time) {
+  uint8_t buf[3] = {0};
+  this->read_register(TIME_FIRST_REG, buf, 3);
+
+  time.second = this->bcd2_to_byte_(buf[0] & 0x7f);
+  time.minute = this->bcd2_to_byte_(buf[1] & 0x7f);
+  time.hour = this->bcd2_to_byte_(buf[2] & 0x3f);
+}
+
+void BM8563::set_time_(const ESPTime &time) {
+  uint8_t buf[3] = {this->byte_to_bcd2_(time.second), this->byte_to_bcd2_(time.minute), this->byte_to_bcd2_(time.hour)};
+  this->write_register_(TIME_FIRST_REG, buf, 3);
+}
+
+void BM8563::get_date_(ESPTime &time) {
+  uint8_t buf[4] = {0};
+  this->read_register(DATE_FIRST_REG, buf, sizeof(buf));
+
+  time.day_of_month = this->bcd2_to_byte_(buf[0] & 0x3f);
+  time.day_of_week = this->bcd2_to_byte_(buf[1] & 0x07);
+  time.month = this->bcd2_to_byte_(buf[2] & 0x1f);
+
+  uint8_t year_byte = this->bcd2_to_byte_(buf[3] & 0xff);
+
+  if (buf[2] & 0x80) {
+    time.year = 1900 + year_byte;
+  } else {
+    time.year = 2000 + year_byte;
+  }
+}
+
+void BM8563::set_date_(const ESPTime &time) {
+  uint8_t buf[4] = {
+      this->byte_to_bcd2_(time.day_of_month),
+      this->byte_to_bcd2_(time.day_of_week),
+      this->byte_to_bcd2_(time.month),
+      this->byte_to_bcd2_(time.year % 100),
+  };
+
+  if (time.year < 2000) {
+    buf[2] = buf[2] | 0x80;
+  }
+
+  this->write_register_(DATE_FIRST_REG, buf, 4);
+}
+
+void BM8563::write_byte_(uint8_t reg, uint8_t value) {
+  if (!this->write_byte(reg, value)) {
+    ESP_LOGE(TAG, "Failed to write byte 0x%02X with value 0x%02X", reg, value);
+  }
+}
+
+void BM8563::write_register_(uint8_t reg, const uint8_t *data, size_t len) {
+  if (auto error = this->write_register(reg, data, len); error != i2c::ErrorCode::NO_ERROR) {
+    ESP_LOGE(TAG, "Failed to write register 0x%02X with %zu bytes", reg, len);
+  }
+}
+
+optional<uint8_t> BM8563::read_register_(uint8_t reg) {
+  uint8_t data;
+  if (auto error = this->read_register(reg, &data, 1); error != i2c::ErrorCode::NO_ERROR) {
+    ESP_LOGE(TAG, "Failed to read register 0x%02X", reg);
+    return {};
+  }
+  return data;
+}
+
+void BM8563::set_timer_irq_(uint32_t duration_s) {
+  ESP_LOGI(TAG, "Timer Duration: %u s", duration_s);
+
+  if (duration_s > MAX_TIMER_DURATION_S) {
+    ESP_LOGW(TAG, "Timer duration %u s exceeds maximum %u s", duration_s, MAX_TIMER_DURATION_S);
+    return;
+  }
+
+  if (duration_s > 255) {
+    uint8_t duration_minutes = duration_s / 60;
+    this->write_byte_(TIMER_VALUE_REG, duration_minutes);
+    this->write_byte_(TIMER_CONTROL_REG, CLOCK_1_60_HZ);
+  } else {
+    this->write_byte_(TIMER_VALUE_REG, duration_s);
+    this->write_byte_(TIMER_CONTROL_REG, CLOCK_1_HZ);
+  }
+
+  auto maybe_ctrl_status_2 = this->read_register_(CONTROL_STATUS_2_REG);
+  if (!maybe_ctrl_status_2.has_value()) {
+    ESP_LOGE(TAG, "Failed to read CONTROL_STATUS_2_REG");
+    return;
+  }
+  uint8_t ctrl_status_2_reg_value = maybe_ctrl_status_2.value();
+  ctrl_status_2_reg_value |= (1 << 0);
+  ctrl_status_2_reg_value &= ~(1 << 7);
+  this->write_byte_(CONTROL_STATUS_2_REG, ctrl_status_2_reg_value);
+}
+
+void BM8563::clear_irq_() {
+  auto maybe_data = this->read_register_(CONTROL_STATUS_2_REG);
+  if (!maybe_data.has_value()) {
+    ESP_LOGE(TAG, "Failed to read CONTROL_STATUS_2_REG");
+    return;
+  }
+  uint8_t data = maybe_data.value();
+  this->write_byte_(CONTROL_STATUS_2_REG, data & 0xf3);
+}
+
+void BM8563::disable_irq_() {
+  this->clear_irq_();
+  auto maybe_data = this->read_register_(CONTROL_STATUS_2_REG);
+  if (!maybe_data.has_value()) {
+    ESP_LOGE(TAG, "Failed to read CONTROL_STATUS_2_REG");
+    return;
+  }
+  uint8_t data = maybe_data.value();
+  this->write_byte_(CONTROL_STATUS_2_REG, data & 0xfc);
+}
+
+}  // namespace esphome::bm8563

esphome/components/bm8563/bm8563.h

@@ -0,0 +1,57 @@
+#pragma once
+
+#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/time/real_time_clock.h"
+
+namespace esphome::bm8563 {
+
+class BM8563 : public time::RealTimeClock, public i2c::I2CDevice {
+ public:
+  void setup() override;
+  void update() override;
+  void dump_config() override;
+
+  void write_time();
+  void read_time();
+  void start_timer(uint32_t duration_s);
+
+ private:
+  void get_time_(ESPTime &time);
+  void get_date_(ESPTime &time);
+
+  void set_time_(const ESPTime &time);
+  void set_date_(const ESPTime &time);
+
+  void set_timer_irq_(uint32_t duration_s);
+  void clear_irq_();
+  void disable_irq_();
+
+  void write_byte_(uint8_t reg, uint8_t value);
+  void write_register_(uint8_t reg, const uint8_t *data, size_t len);
+  optional<uint8_t> read_register_(uint8_t reg);
+
+  uint8_t bcd2_to_byte_(uint8_t value);
+  uint8_t byte_to_bcd2_(uint8_t value);
+};
+
+template<typename... Ts> class WriteAction : public Action<Ts...>, public Parented<BM8563> {
+ public:
+  void play(const Ts &...x) override { this->parent_->write_time(); }
+};
+
+template<typename... Ts> class ReadAction : public Action<Ts...>, public Parented<BM8563> {
+ public:
+  void play(const Ts &...x) override { this->parent_->read_time(); }
+};
+
+template<typename... Ts> class TimerAction : public Action<Ts...>, public Parented<BM8563> {
+ public:
+  TEMPLATABLE_VALUE(uint32_t, duration)
+
+  void play(const Ts &...x) override {
+    auto duration = this->duration_.value(x...);
+    this->parent_->start_timer(duration);
+  }
+};
+
+}  // namespace esphome::bm8563

esphome/components/bm8563/time.py

@@ -0,0 +1,80 @@
+from esphome import automation
+import esphome.codegen as cg
+from esphome.components import i2c, time
+import esphome.config_validation as cv
+from esphome.const import CONF_DURATION, CONF_ID
+
+DEPENDENCIES = ["i2c"]
+
+I2C_ADDR = 0x51
+
+bm8563_ns = cg.esphome_ns.namespace("bm8563")
+BM8563 = bm8563_ns.class_("BM8563", time.RealTimeClock, i2c.I2CDevice)
+WriteAction = bm8563_ns.class_("WriteAction", automation.Action)
+ReadAction = bm8563_ns.class_("ReadAction", automation.Action)
+TimerAction = bm8563_ns.class_("TimerAction", automation.Action)
+
+CONFIG_SCHEMA = (
+    time.TIME_SCHEMA.extend(
+        {
+            cv.GenerateID(): cv.declare_id(BM8563),
+        }
+    )
+    .extend(cv.COMPONENT_SCHEMA)
+    .extend(i2c.i2c_device_schema(I2C_ADDR))
+)
+
+
+@automation.register_action(
+    "bm8563.write_time",
+    WriteAction,
+    automation.maybe_simple_id(
+        {
+            cv.GenerateID(): cv.use_id(BM8563),
+        }
+    ),
+)
+async def bm8563_write_time_to_code(config, action_id, template_arg, args):
+    var = cg.new_Pvariable(action_id, template_arg)
+    await cg.register_parented(var, config[CONF_ID])
+    return var
+
+
+@automation.register_action(
+    "bm8563.start_timer",
+    TimerAction,
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.use_id(BM8563),
+            cv.Required(CONF_DURATION): cv.templatable(cv.positive_time_period_seconds),
+        }
+    ),
+)
+async def bm8563_start_timer_to_code(config, action_id, template_arg, args):
+    var = cg.new_Pvariable(action_id, template_arg)
+    await cg.register_parented(var, config[CONF_ID])
+    template_ = await cg.templatable(config[CONF_DURATION], args, cg.uint32)
+    cg.add(var.set_duration(template_))
+    return var
+
+
+@automation.register_action(
+    "bm8563.read_time",
+    ReadAction,
+    automation.maybe_simple_id(
+        {
+            cv.GenerateID(): cv.use_id(BM8563),
+        }
+    ),
+)
+async def bm8563_read_time_to_code(config, action_id, template_arg, args):
+    var = cg.new_Pvariable(action_id, template_arg)
+    await cg.register_parented(var, config[CONF_ID])
+    return var
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await i2c.register_i2c_device(var, config)
+    await time.register_time(var, config)

esphome/components/bme280_base/bme280_base.cpp

@@ -100,18 +100,18 @@ void BME280Component::setup() {
 
   if (!this->read_byte(BME280_REGISTER_CHIPID, &chip_id)) {
     this->error_code_ = COMMUNICATION_FAILED;
-    this->mark_failed(ESP_LOG_MSG_COMM_FAIL);
+    this->mark_failed(LOG_STR(ESP_LOG_MSG_COMM_FAIL));
     return;
   }
   if (chip_id != 0x60) {
     this->error_code_ = WRONG_CHIP_ID;
-    this->mark_failed(BME280_ERROR_WRONG_CHIP_ID);
+    this->mark_failed(LOG_STR(BME280_ERROR_WRONG_CHIP_ID));
     return;
   }
 
   // Send a soft reset.
   if (!this->write_byte(BME280_REGISTER_RESET, BME280_SOFT_RESET)) {
-    this->mark_failed("Reset failed");
+    this->mark_failed(LOG_STR("Reset failed"));
     return;
   }
   // Wait until the NVM data has finished loading.
@@ -120,12 +120,12 @@ void BME280Component::setup() {
   do {  // NOLINT
     delay(2);
     if (!this->read_byte(BME280_REGISTER_STATUS, &status)) {
-      this->mark_failed("Error reading status register");
+      this->mark_failed(LOG_STR("Error reading status register"));
       return;
     }
   } while ((status & BME280_STATUS_IM_UPDATE) && (--retry));
   if (status & BME280_STATUS_IM_UPDATE) {
-    this->mark_failed("Timeout loading NVM");
+    this->mark_failed(LOG_STR("Timeout loading NVM"));
     return;
   }
 
@@ -153,26 +153,26 @@ void BME280Component::setup() {
 
   uint8_t humid_control_val = 0;
   if (!this->read_byte(BME280_REGISTER_CONTROLHUMID, &humid_control_val)) {
-    this->mark_failed("Read humidity control");
+    this->mark_failed(LOG_STR("Read humidity control"));
     return;
   }
   humid_control_val &= ~0b00000111;
   humid_control_val |= this->humidity_oversampling_ & 0b111;
   if (!this->write_byte(BME280_REGISTER_CONTROLHUMID, humid_control_val)) {
-    this->mark_failed("Write humidity control");
+    this->mark_failed(LOG_STR("Write humidity control"));
     return;
   }
 
   uint8_t config_register = 0;
   if (!this->read_byte(BME280_REGISTER_CONFIG, &config_register)) {
-    this->mark_failed("Read config");
+    this->mark_failed(LOG_STR("Read config"));
     return;
   }
   config_register &= ~0b11111100;
   config_register |= 0b101 << 5;  // 1000 ms standby time
   config_register |= (this->iir_filter_ & 0b111) << 2;
   if (!this->write_byte(BME280_REGISTER_CONFIG, config_register)) {
-    this->mark_failed("Write config");
+    this->mark_failed(LOG_STR("Write config"));
     return;
   }
 }

esphome/components/bmp280_base/bmp280_base.cpp

@@ -65,23 +65,23 @@ void BMP280Component::setup() {
   // https://community.st.com/t5/stm32-mcus-products/issue-with-reading-bmp280-chip-id-using-spi/td-p/691855
   if (!this->bmp_read_byte(0xD0, &chip_id)) {
     this->error_code_ = COMMUNICATION_FAILED;
-    this->mark_failed(ESP_LOG_MSG_COMM_FAIL);
+    this->mark_failed(LOG_STR(ESP_LOG_MSG_COMM_FAIL));
     return;
   }
   if (!this->bmp_read_byte(0xD0, &chip_id)) {
     this->error_code_ = COMMUNICATION_FAILED;
-    this->mark_failed(ESP_LOG_MSG_COMM_FAIL);
+    this->mark_failed(LOG_STR(ESP_LOG_MSG_COMM_FAIL));
     return;
   }
   if (chip_id != 0x58) {
     this->error_code_ = WRONG_CHIP_ID;
-    this->mark_failed(BMP280_ERROR_WRONG_CHIP_ID);
+    this->mark_failed(LOG_STR(BMP280_ERROR_WRONG_CHIP_ID));
     return;
   }
 
   // Send a soft reset.
   if (!this->bmp_write_byte(BMP280_REGISTER_RESET, BMP280_SOFT_RESET)) {
-    this->mark_failed("Reset failed");
+    this->mark_failed(LOG_STR("Reset failed"));
     return;
   }
   // Wait until the NVM data has finished loading.
@@ -90,12 +90,12 @@ void BMP280Component::setup() {
   do {
     delay(2);
     if (!this->bmp_read_byte(BMP280_REGISTER_STATUS, &status)) {
-      this->mark_failed("Error reading status register");
+      this->mark_failed(LOG_STR("Error reading status register"));
       return;
     }
   } while ((status & BMP280_STATUS_IM_UPDATE) && (--retry));
   if (status & BMP280_STATUS_IM_UPDATE) {
-    this->mark_failed("Timeout loading NVM");
+    this->mark_failed(LOG_STR("Timeout loading NVM"));
     return;
   }
 
@@ -116,14 +116,14 @@ void BMP280Component::setup() {
 
   uint8_t config_register = 0;
   if (!this->bmp_read_byte(BMP280_REGISTER_CONFIG, &config_register)) {
-    this->mark_failed("Read config");
+    this->mark_failed(LOG_STR("Read config"));
     return;
   }
   config_register &= ~0b11111100;
   config_register |= 0b000 << 5;  // 0.5 ms standby time
   config_register |= (this->iir_filter_ & 0b111) << 2;
   if (!this->bmp_write_byte(BMP280_REGISTER_CONFIG, config_register)) {
-    this->mark_failed("Write config");
+    this->mark_failed(LOG_STR("Write config"));
     return;
   }
 }

esphome/components/camera/camera.cpp

@@ -8,7 +8,7 @@ Camera *Camera::global_camera = nullptr;
 
 Camera::Camera() {
   if (global_camera != nullptr) {
-    this->status_set_error("Multiple cameras are configured, but only one is supported.");
+    this->status_set_error(LOG_STR("Multiple cameras are configured, but only one is supported."));
     this->mark_failed();
     return;
   }

esphome/components/cst816/touchscreen/cst816_touchscreen.cpp

@@ -19,13 +19,14 @@ void CST816Touchscreen::continue_setup_() {
       case CST816T_CHIP_ID:
         break;
       default:
-        this->status_set_error(str_sprintf("Unknown chip ID 0x%02X", this->chip_id_));
+        ESP_LOGE(TAG, "Unknown chip ID: 0x%02X", this->chip_id_);
+        this->status_set_error(LOG_STR("Unknown chip ID"));
         this->mark_failed();
         return;
     }
     this->write_byte(REG_IRQ_CTL, IRQ_EN_MOTION);
   } else if (!this->skip_probe_) {
-    this->status_set_error("Failed to read chip id");
+    this->status_set_error(LOG_STR("Failed to read chip id"));
     this->mark_failed();
     return;
   }

esphome/components/epaper_spi/epaper_spi.cpp

@@ -22,7 +22,7 @@ const char *EPaperBase::epaper_state_to_string_() {
 
 void EPaperBase::setup() {
   if (!this->init_buffer_(this->buffer_length_)) {
-    this->mark_failed("Failed to initialise buffer");
+    this->mark_failed(LOG_STR("Failed to initialise buffer"));
     return;
   }
   this->setup_pins_();
@@ -246,7 +246,7 @@ void EPaperBase::initialise_() {
   auto length = this->init_sequence_length_;
   while (index != length) {
     if (length - index < 2) {
-      this->mark_failed("Malformed init sequence");
+      this->mark_failed(LOG_STR("Malformed init sequence"));
       return;
     }
     const uint8_t cmd = sequence[index++];

esphome/components/esp32/__init__.py

@@ -854,6 +854,10 @@ def _configure_lwip_max_sockets(conf: dict) -> None:
 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])
+    cg.add_platformio_option(
+        "board_upload.maximum_size",
+        int(config[CONF_FLASH_SIZE].removesuffix("MB")) * 1024 * 1024,
+    )
     cg.set_cpp_standard("gnu++20")
     cg.add_build_flag("-DUSE_ESP32")
     cg.add_define("ESPHOME_BOARD", config[CONF_BOARD])
@@ -883,6 +887,12 @@ async def to_code(config):
         CORE.relative_internal_path(".espressif")
     )
 
+    add_extra_script(
+        "pre",
+        "pre_build.py",
+        Path(__file__).parent / "pre_build.py.script",
+    )
+
     add_extra_script(
         "post",
         "post_build.py",

esphome/components/esp32/pre_build.py.script

@@ -0,0 +1,9 @@
+Import("env")  # noqa: F821
+
+# Remove custom_sdkconfig from the board config as it causes
+# pioarduino to enable some strange hybrid build mode that breaks IDF
+board = env.BoardConfig()
+if "espidf.custom_sdkconfig" in board:
+    del board._manifest["espidf"]["custom_sdkconfig"]
+    if not board._manifest["espidf"]:
+        del board._manifest["espidf"]

esphome/components/esp32_ble/ble.cpp

@@ -256,29 +256,38 @@ bool ESP32BLE::ble_setup_() {
   }
 #endif
 
-  std::string name;
-  if (this->name_.has_value()) {
-    name = this->name_.value();
+  const char *device_name;
+  std::string name_with_suffix;
+
+  if (this->name_ != nullptr) {
     if (App.is_name_add_mac_suffix_enabled()) {
+      // MAC address length: 12 hex chars + null terminator
+      constexpr size_t mac_address_len = 13;
       // MAC address suffix length (last 6 characters of 12-char MAC address string)
       constexpr size_t mac_address_suffix_len = 6;
-      const std::string mac_addr = get_mac_address();
-      const char *mac_suffix_ptr = mac_addr.c_str() + mac_address_suffix_len;
-      name = make_name_with_suffix(name, '-', mac_suffix_ptr, mac_address_suffix_len);
+      char mac_addr[mac_address_len];
+      get_mac_address_into_buffer(mac_addr);
+      const char *mac_suffix_ptr = mac_addr + mac_address_suffix_len;
+      name_with_suffix =
+          make_name_with_suffix(this->name_, strlen(this->name_), '-', mac_suffix_ptr, mac_address_suffix_len);
+      device_name = name_with_suffix.c_str();
+    } else {
+      device_name = this->name_;
     }
   } else {
-    name = App.get_name();
-    if (name.length() > 20) {
+    name_with_suffix = App.get_name();
+    if (name_with_suffix.length() > 20) {
       if (App.is_name_add_mac_suffix_enabled()) {
         // Keep first 13 chars and last 7 chars (MAC suffix), remove middle
-        name.erase(13, name.length() - 20);
+        name_with_suffix.erase(13, name_with_suffix.length() - 20);
       } else {
-        name.resize(20);
+        name_with_suffix.resize(20);
       }
     }
+    device_name = name_with_suffix.c_str();
   }
 
-  err = esp_ble_gap_set_device_name(name.c_str());
+  err = esp_ble_gap_set_device_name(device_name);
   if (err != ESP_OK) {
     ESP_LOGE(TAG, "esp_ble_gap_set_device_name failed: %d", err);
     return false;

esphome/components/esp32_ble/ble.h

@@ -112,7 +112,7 @@ class ESP32BLE : public Component {
   void loop() override;
   void dump_config() override;
   float get_setup_priority() const override;
-  void set_name(const std::string &name) { this->name_ = name; }
+  void set_name(const char *name) { this->name_ = name; }
 
 #ifdef USE_ESP32_BLE_ADVERTISING
   void advertising_start();
@@ -191,13 +191,11 @@ class ESP32BLE : public Component {
   esphome::LockFreeQueue<BLEEvent, MAX_BLE_QUEUE_SIZE> ble_events_;
   esphome::EventPool<BLEEvent, MAX_BLE_QUEUE_SIZE> ble_event_pool_;
 
-  // optional<string> (typically 16+ bytes on 32-bit, aligned to 4 bytes)
-  optional<std::string> name_;
-
   // 4-byte aligned members
 #ifdef USE_ESP32_BLE_ADVERTISING
   BLEAdvertising *advertising_{};  // 4 bytes (pointer)
 #endif
+  const char *name_{nullptr};                 // 4 bytes (pointer to string literal in flash)
   esp_ble_io_cap_t io_cap_{ESP_IO_CAP_NONE};  // 4 bytes (enum)
   uint32_t advertising_cycle_time_{};         // 4 bytes
 

esphome/components/esp32_hosted/update/esp32_hosted_update.cpp

@@ -88,7 +88,7 @@ void Esp32HostedUpdate::perform(bool force) {
   hasher.add(this->firmware_data_, this->firmware_size_);
   hasher.calculate();
   if (!hasher.equals_bytes(this->firmware_sha256_.data())) {
-    this->status_set_error("SHA256 verification failed");
+    this->status_set_error(LOG_STR("SHA256 verification failed"));
     this->publish_state();
     return;
   }
@@ -105,7 +105,7 @@ void Esp32HostedUpdate::perform(bool force) {
   if (err != ESP_OK) {
     ESP_LOGE(TAG, "Failed to begin OTA: %s", esp_err_to_name(err));
     this->state_ = prev_state;
-    this->status_set_error("Failed to begin OTA");
+    this->status_set_error(LOG_STR("Failed to begin OTA"));
     this->publish_state();
     return;
   }
@@ -121,7 +121,7 @@ void Esp32HostedUpdate::perform(bool force) {
       ESP_LOGE(TAG, "Failed to write OTA data: %s", esp_err_to_name(err));
       esp_hosted_slave_ota_end();  // NOLINT
       this->state_ = prev_state;
-      this->status_set_error("Failed to write OTA data");
+      this->status_set_error(LOG_STR("Failed to write OTA data"));
       this->publish_state();
       return;
     }
@@ -134,7 +134,7 @@ void Esp32HostedUpdate::perform(bool force) {
   if (err != ESP_OK) {
     ESP_LOGE(TAG, "Failed to end OTA: %s", esp_err_to_name(err));
     this->state_ = prev_state;
-    this->status_set_error("Failed to end OTA");
+    this->status_set_error(LOG_STR("Failed to end OTA"));
     this->publish_state();
     return;
   }
@@ -144,7 +144,7 @@ void Esp32HostedUpdate::perform(bool force) {
   if (err != ESP_OK) {
     ESP_LOGE(TAG, "Failed to activate OTA: %s", esp_err_to_name(err));
     this->state_ = prev_state;
-    this->status_set_error("Failed to activate OTA");
+    this->status_set_error(LOG_STR("Failed to activate OTA"));
     this->publish_state();
     return;
   }

esphome/components/esp8266/core.h

@@ -7,8 +7,6 @@
 extern const uint8_t ESPHOME_ESP8266_GPIO_INITIAL_MODE[16];
 extern const uint8_t ESPHOME_ESP8266_GPIO_INITIAL_LEVEL[16];
 
-namespace esphome {
-namespace esp8266 {}  // namespace esp8266
-}  // namespace esphome
+namespace esphome::esp8266 {}  // namespace esphome::esp8266
 
 #endif  // USE_ESP8266

esphome/components/esp8266/gpio.cpp

@@ -3,8 +3,7 @@
 #include "gpio.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace esp8266 {
+namespace esphome::esp8266 {
 
 static const char *const TAG = "esp8266";
 
@@ -110,9 +109,11 @@ void ESP8266GPIOPin::digital_write(bool value) {
 }
 void ESP8266GPIOPin::detach_interrupt() const { detachInterrupt(pin_); }
 
-}  // namespace esp8266
+}  // namespace esphome::esp8266
 
-using namespace esp8266;
+namespace esphome {
+
+using esp8266::ISRPinArg;
 
 bool IRAM_ATTR ISRInternalGPIOPin::digital_read() {
   auto *arg = reinterpret_cast<ISRPinArg *>(this->arg_);

esphome/components/esp8266/gpio.h

@@ -5,8 +5,7 @@
 #include "esphome/core/hal.h"
 #include <Arduino.h>
 
-namespace esphome {
-namespace esp8266 {
+namespace esphome::esp8266 {
 
 class ESP8266GPIOPin : public InternalGPIOPin {
  public:
@@ -33,7 +32,6 @@ class ESP8266GPIOPin : public InternalGPIOPin {
   gpio::Flags flags_{};
 };
 
-}  // namespace esp8266
-}  // namespace esphome
+}  // namespace esphome::esp8266
 
 #endif  // USE_ESP8266

esphome/components/esp8266/preferences.cpp

@@ -15,24 +15,24 @@ extern "C" {
 #include <cstring>
 #include <memory>
 
-namespace esphome {
-namespace esp8266 {
+namespace esphome::esp8266 {
 
 static const char *const TAG = "esp8266.preferences";
 
-static bool s_prevent_write = false;         // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 static uint32_t *s_flash_storage = nullptr;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
+static bool s_prevent_write = false;         // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 static bool s_flash_dirty = false;           // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 
-static const uint32_t ESP_RTC_USER_MEM_START = 0x60001200;
+static constexpr uint32_t ESP_RTC_USER_MEM_START = 0x60001200;
+static constexpr uint32_t ESP_RTC_USER_MEM_SIZE_WORDS = 128;
+static constexpr uint32_t ESP_RTC_USER_MEM_SIZE_BYTES = ESP_RTC_USER_MEM_SIZE_WORDS * 4;
+
 #define ESP_RTC_USER_MEM ((uint32_t *) ESP_RTC_USER_MEM_START)
-static const uint32_t ESP_RTC_USER_MEM_SIZE_WORDS = 128;
-static const uint32_t ESP_RTC_USER_MEM_SIZE_BYTES = ESP_RTC_USER_MEM_SIZE_WORDS * 4;
 
 #ifdef USE_ESP8266_PREFERENCES_FLASH
-static const uint32_t ESP8266_FLASH_STORAGE_SIZE = 128;
+static constexpr uint32_t ESP8266_FLASH_STORAGE_SIZE = 128;
 #else
-static const uint32_t ESP8266_FLASH_STORAGE_SIZE = 64;
+static constexpr uint32_t ESP8266_FLASH_STORAGE_SIZE = 64;
 #endif
 
 static inline bool esp_rtc_user_mem_read(uint32_t index, uint32_t *dest) {
@@ -284,10 +284,10 @@ void setup_preferences() {
 }
 void preferences_prevent_write(bool prevent) { s_prevent_write = prevent; }
 
-}  // namespace esp8266
+}  // namespace esphome::esp8266
 
+namespace esphome {
 ESPPreferences *global_preferences;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
-
 }  // namespace esphome
 
 #endif  // USE_ESP8266

esphome/components/esp8266/preferences.h

@@ -2,13 +2,11 @@
 
 #ifdef USE_ESP8266
 
-namespace esphome {
-namespace esp8266 {
+namespace esphome::esp8266 {
 
 void setup_preferences();
 void preferences_prevent_write(bool prevent);
 
-}  // namespace esp8266
-}  // namespace esphome
+}  // namespace esphome::esp8266
 
 #endif  // USE_ESP8266

esphome/components/esp_ldo/esp_ldo.cpp

@@ -14,8 +14,8 @@ void EspLdo::setup() {
   config.flags.adjustable = this->adjustable_;
   auto err = esp_ldo_acquire_channel(&config, &this->handle_);
   if (err != ESP_OK) {
-    auto msg = str_sprintf("Failed to acquire LDO channel %d with voltage %fV", this->channel_, this->voltage_);
-    this->mark_failed(msg.c_str());
+    ESP_LOGE(TAG, "Failed to acquire LDO channel %d with voltage %fV", this->channel_, this->voltage_);
+    this->mark_failed(LOG_STR("Failed to acquire LDO channel"));
   } else {
     ESP_LOGD(TAG, "Acquired LDO channel %d with voltage %fV", this->channel_, this->voltage_);
   }

esphome/components/ethernet/__init__.py

@@ -383,6 +383,7 @@ async def to_code(config):
     cg.add(var.set_use_address(config[CONF_USE_ADDRESS]))
 
     if CONF_MANUAL_IP in config:
+        cg.add_define("USE_ETHERNET_MANUAL_IP")
         cg.add(var.set_manual_ip(manual_ip(config[CONF_MANUAL_IP])))
 
     # Add compile-time define for PHY types with specific code

esphome/components/ethernet/ethernet_component.cpp

@@ -553,11 +553,14 @@ void EthernetComponent::start_connect_() {
   }
 
   esp_netif_ip_info_t info;
+#ifdef USE_ETHERNET_MANUAL_IP
   if (this->manual_ip_.has_value()) {
     info.ip = this->manual_ip_->static_ip;
     info.gw = this->manual_ip_->gateway;
     info.netmask = this->manual_ip_->subnet;
-  } else {
+  } else
+#endif
+  {
     info.ip.addr = 0;
     info.gw.addr = 0;
     info.netmask.addr = 0;
@@ -578,6 +581,7 @@ void EthernetComponent::start_connect_() {
   err = esp_netif_set_ip_info(this->eth_netif_, &info);
   ESPHL_ERROR_CHECK(err, "DHCPC set IP info error");
 
+#ifdef USE_ETHERNET_MANUAL_IP
   if (this->manual_ip_.has_value()) {
     LwIPLock lock;
     if (this->manual_ip_->dns1.is_set()) {
@@ -590,7 +594,9 @@ void EthernetComponent::start_connect_() {
       d = this->manual_ip_->dns2;
       dns_setserver(1, &d);
     }
-  } else {
+  } else
+#endif
+  {
     err = esp_netif_dhcpc_start(this->eth_netif_);
     if (err != ESP_ERR_ESP_NETIF_DHCP_ALREADY_STARTED) {
       ESPHL_ERROR_CHECK(err, "DHCPC start error");
@@ -688,7 +694,9 @@ void EthernetComponent::set_clk_mode(emac_rmii_clock_mode_t clk_mode) { this->cl
 void EthernetComponent::add_phy_register(PHYRegister register_value) { this->phy_registers_.push_back(register_value); }
 #endif
 void EthernetComponent::set_type(EthernetType type) { this->type_ = type; }
+#ifdef USE_ETHERNET_MANUAL_IP
 void EthernetComponent::set_manual_ip(const ManualIP &manual_ip) { this->manual_ip_ = manual_ip; }
+#endif
 
 // set_use_address() is guaranteed to be called during component setup by Python code generation,
 // so use_address_ will always be valid when get_use_address() is called - no fallback needed.

esphome/components/ethernet/ethernet_component.h

@@ -82,7 +82,9 @@ class EthernetComponent : public Component {
   void add_phy_register(PHYRegister register_value);
 #endif
   void set_type(EthernetType type);
+#ifdef USE_ETHERNET_MANUAL_IP
   void set_manual_ip(const ManualIP &manual_ip);
+#endif
   void set_fixed_mac(const std::array<uint8_t, 6> &mac) { this->fixed_mac_ = mac; }
 
   network::IPAddresses get_ip_addresses();
@@ -137,7 +139,9 @@ class EthernetComponent : public Component {
   uint8_t mdc_pin_{23};
   uint8_t mdio_pin_{18};
 #endif
+#ifdef USE_ETHERNET_MANUAL_IP
   optional<ManualIP> manual_ip_{};
+#endif
   uint32_t connect_begin_;
 
   // Group all uint8_t types together (enums and bools)

esphome/components/gdk101/gdk101.cpp

@@ -36,20 +36,20 @@ void GDK101Component::setup() {
   uint8_t data[2];
   // first, reset the sensor
   if (!this->reset_sensor_(data)) {
-    this->status_set_error("Reset failed!");
+    this->status_set_error(LOG_STR("Reset failed!"));
     this->mark_failed();
     return;
   }
   // sensor should acknowledge success of the reset procedure
   if (data[0] != 1) {
-    this->status_set_error("Reset not acknowledged!");
+    this->status_set_error(LOG_STR("Reset not acknowledged!"));
     this->mark_failed();
     return;
   }
   delay(10);
   // read firmware version
   if (!this->read_fw_version_(data)) {
-    this->status_set_error("Failed to read firmware version");
+    this->status_set_error(LOG_STR("Failed to read firmware version"));
     this->mark_failed();
     return;
   }

esphome/components/gt911/touchscreen/gt911_touchscreen.cpp

@@ -79,13 +79,13 @@ void GT911Touchscreen::setup_internal_() {
       }
     }
     if (err != i2c::ERROR_OK) {
-      this->mark_failed("Calibration error");
+      this->mark_failed(LOG_STR("Calibration error"));
       return;
     }
   }
 
   if (err != i2c::ERROR_OK) {
-    this->mark_failed(ESP_LOG_MSG_COMM_FAIL);
+    this->mark_failed(LOG_STR(ESP_LOG_MSG_COMM_FAIL));
     return;
   }
   this->setup_done_ = true;

esphome/components/http_request/update/http_request_update.cpp

@@ -29,7 +29,7 @@ void HttpRequestUpdate::setup() {
       this->publish_state();
     } else if (state == ota::OTAState::OTA_ABORT || state == ota::OTAState::OTA_ERROR) {
       this->state_ = update::UPDATE_STATE_AVAILABLE;
-      this->status_set_error("Failed to install firmware");
+      this->status_set_error(LOG_STR("Failed to install firmware"));
       this->publish_state();
     }
   });
@@ -49,18 +49,19 @@ void HttpRequestUpdate::update_task(void *params) {
   auto container = this_update->request_parent_->get(this_update->source_url_);
 
   if (container == nullptr || container->status_code != HTTP_STATUS_OK) {
-    std::string msg = str_sprintf("Failed to fetch manifest from %s", this_update->source_url_.c_str());
+    ESP_LOGE(TAG, "Failed to fetch manifest from %s", this_update->source_url_.c_str());
     // Defer to main loop to avoid race condition on component_state_ read-modify-write
-    this_update->defer([this_update, msg]() { this_update->status_set_error(msg); });
+    this_update->defer([this_update]() { this_update->status_set_error(LOG_STR("Failed to fetch manifest")); });
     UPDATE_RETURN;
   }
 
   RAMAllocator<uint8_t> allocator;
   uint8_t *data = allocator.allocate(container->content_length);
   if (data == nullptr) {
-    std::string msg = str_sprintf("Failed to allocate %zu bytes for manifest", container->content_length);
+    ESP_LOGE(TAG, "Failed to allocate %zu bytes for manifest", container->content_length);
     // Defer to main loop to avoid race condition on component_state_ read-modify-write
-    this_update->defer([this_update, msg]() { this_update->status_set_error(msg); });
+    this_update->defer(
+        [this_update]() { this_update->status_set_error(LOG_STR("Failed to allocate memory for manifest")); });
     container->end();
     UPDATE_RETURN;
   }
@@ -121,9 +122,9 @@ void HttpRequestUpdate::update_task(void *params) {
   }
 
   if (!valid) {
-    std::string msg = str_sprintf("Failed to parse JSON from %s", this_update->source_url_.c_str());
+    ESP_LOGE(TAG, "Failed to parse JSON from %s", this_update->source_url_.c_str());
     // Defer to main loop to avoid race condition on component_state_ read-modify-write
-    this_update->defer([this_update, msg]() { this_update->status_set_error(msg); });
+    this_update->defer([this_update]() { this_update->status_set_error(LOG_STR("Failed to parse manifest JSON")); });
     UPDATE_RETURN;
   }
 

esphome/components/i2c/__init__.py

@@ -47,18 +47,20 @@ MULTI_CONF = True
 
 
 def _bus_declare_type(value):
+    if CORE.is_esp32:
+        return cv.declare_id(IDFI2CBus)(value)
     if CORE.using_arduino:
         return cv.declare_id(ArduinoI2CBus)(value)
-    if CORE.using_esp_idf:
-        return cv.declare_id(IDFI2CBus)(value)
     if CORE.using_zephyr:
         return cv.declare_id(ZephyrI2CBus)(value)
     raise NotImplementedError
 
 
 def validate_config(config):
-    if CORE.using_esp_idf:
-        return cv.require_framework_version(esp_idf=cv.Version(5, 4, 2))(config)
+    if CORE.is_esp32:
+        return cv.require_framework_version(
+            esp_idf=cv.Version(5, 4, 2), esp32_arduino=cv.Version(3, 2, 1)
+        )(config)
     return config
 
 
@@ -67,12 +69,12 @@ CONFIG_SCHEMA = cv.All(
         {
             cv.GenerateID(): _bus_declare_type,
             cv.Optional(CONF_SDA, default="SDA"): pins.internal_gpio_pin_number,
-            cv.SplitDefault(CONF_SDA_PULLUP_ENABLED, esp32_idf=True): cv.All(
-                cv.only_with_esp_idf, cv.boolean
+            cv.SplitDefault(CONF_SDA_PULLUP_ENABLED, esp32=True): cv.All(
+                cv.only_on_esp32, cv.boolean
             ),
             cv.Optional(CONF_SCL, default="SCL"): pins.internal_gpio_pin_number,
-            cv.SplitDefault(CONF_SCL_PULLUP_ENABLED, esp32_idf=True): cv.All(
-                cv.only_with_esp_idf, cv.boolean
+            cv.SplitDefault(CONF_SCL_PULLUP_ENABLED, esp32=True): cv.All(
+                cv.only_on_esp32, cv.boolean
             ),
             cv.SplitDefault(
                 CONF_FREQUENCY,
@@ -151,7 +153,7 @@ async def to_code(config):
     cg.add(var.set_scan(config[CONF_SCAN]))
     if CONF_TIMEOUT in config:
         cg.add(var.set_timeout(int(config[CONF_TIMEOUT].total_microseconds)))
-    if CORE.using_arduino:
+    if CORE.using_arduino and not CORE.is_esp32:
         cg.add_library("Wire", None)
 
 
@@ -248,14 +250,16 @@ def final_validate_device_schema(
 FILTER_SOURCE_FILES = filter_source_files_from_platform(
     {
         "i2c_bus_arduino.cpp": {
-            PlatformFramework.ESP32_ARDUINO,
             PlatformFramework.ESP8266_ARDUINO,
             PlatformFramework.RP2040_ARDUINO,
             PlatformFramework.BK72XX_ARDUINO,
             PlatformFramework.RTL87XX_ARDUINO,
             PlatformFramework.LN882X_ARDUINO,
         },
-        "i2c_bus_esp_idf.cpp": {PlatformFramework.ESP32_IDF},
+        "i2c_bus_esp_idf.cpp": {
+            PlatformFramework.ESP32_ARDUINO,
+            PlatformFramework.ESP32_IDF,
+        },
         "i2c_bus_zephyr.cpp": {PlatformFramework.NRF52_ZEPHYR},
     }
 )

esphome/components/i2c/i2c_bus_arduino.cpp

@@ -1,4 +1,4 @@
-#ifdef USE_ARDUINO
+#if defined(USE_ARDUINO) && !defined(USE_ESP32)
 
 #include "i2c_bus_arduino.h"
 #include <Arduino.h>
@@ -15,16 +15,7 @@ static const char *const TAG = "i2c.arduino";
 void ArduinoI2CBus::setup() {
   recover_();
 
-#if defined(USE_ESP32)
-  static uint8_t next_bus_num = 0;
-  if (next_bus_num == 0) {
-    wire_ = &Wire;
-  } else {
-    wire_ = new TwoWire(next_bus_num);  // NOLINT(cppcoreguidelines-owning-memory)
-  }
-  this->port_ = next_bus_num;
-  next_bus_num++;
-#elif defined(USE_ESP8266)
+#if defined(USE_ESP8266)
   wire_ = new TwoWire();  // NOLINT(cppcoreguidelines-owning-memory)
 #elif defined(USE_RP2040)
   static bool first = true;
@@ -54,10 +45,7 @@ void ArduinoI2CBus::set_pins_and_clock_() {
   wire_->begin(static_cast<int>(sda_pin_), static_cast<int>(scl_pin_));
 #endif
   if (timeout_ > 0) {  // if timeout specified in yaml
-#if defined(USE_ESP32)
-    // https://github.com/espressif/arduino-esp32/blob/master/libraries/Wire/src/Wire.cpp
-    wire_->setTimeOut(timeout_ / 1000);  // unit: ms
-#elif defined(USE_ESP8266)
+#if defined(USE_ESP8266)
     // https://github.com/esp8266/Arduino/blob/master/libraries/Wire/Wire.h
     wire_->setClockStretchLimit(timeout_);  // unit: us
 #elif defined(USE_RP2040)
@@ -76,9 +64,7 @@ void ArduinoI2CBus::dump_config() {
                 "  Frequency: %u Hz",
                 this->sda_pin_, this->scl_pin_, this->frequency_);
   if (timeout_ > 0) {
-#if defined(USE_ESP32)
-    ESP_LOGCONFIG(TAG, "  Timeout: %u ms", this->timeout_ / 1000);
-#elif defined(USE_ESP8266)
+#if defined(USE_ESP8266)
     ESP_LOGCONFIG(TAG, "  Timeout: %u us", this->timeout_);
 #elif defined(USE_RP2040)
     ESP_LOGCONFIG(TAG, "  Timeout: %u ms", this->timeout_ / 1000);
@@ -275,4 +261,4 @@ void ArduinoI2CBus::recover_() {
 }  // namespace i2c
 }  // namespace esphome
 
-#endif  // USE_ESP_IDF
+#endif  // defined(USE_ARDUINO) && !defined(USE_ESP32)

esphome/components/i2c/i2c_bus_arduino.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#ifdef USE_ARDUINO
+#if defined(USE_ARDUINO) && !defined(USE_ESP32)
 
 #include <Wire.h>
 #include "esphome/core/component.h"
@@ -29,7 +29,7 @@ class ArduinoI2CBus : public InternalI2CBus, public Component {
   void set_frequency(uint32_t frequency) { frequency_ = frequency; }
   void set_timeout(uint32_t timeout) { timeout_ = timeout; }
 
-  int get_port() const override { return this->port_; }
+  int get_port() const override { return 0; }
 
  private:
   void recover_();
@@ -37,7 +37,6 @@ class ArduinoI2CBus : public InternalI2CBus, public Component {
   RecoveryCode recovery_result_;
 
  protected:
-  int8_t port_{-1};
   TwoWire *wire_;
   uint8_t sda_pin_;
   uint8_t scl_pin_;
@@ -49,4 +48,4 @@ class ArduinoI2CBus : public InternalI2CBus, public Component {
 }  // namespace i2c
 }  // namespace esphome
 
-#endif  // USE_ARDUINO
+#endif  // defined(USE_ARDUINO) && !defined(USE_ESP32)

esphome/components/i2c/i2c_bus_esp_idf.cpp

@@ -1,4 +1,4 @@
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "i2c_bus_esp_idf.h"
 
@@ -299,4 +299,4 @@ void IDFI2CBus::recover_() {
 
 }  // namespace i2c
 }  // namespace esphome
-#endif  // USE_ESP_IDF
+#endif  // USE_ESP32

esphome/components/i2c/i2c_bus_esp_idf.h

@@ -1,6 +1,6 @@
 #pragma once
 
-#ifdef USE_ESP_IDF
+#ifdef USE_ESP32
 
 #include "esphome/core/component.h"
 #include "i2c_bus.h"
@@ -53,4 +53,4 @@ class IDFI2CBus : public InternalI2CBus, public Component {
 }  // namespace i2c
 }  // namespace esphome
 
-#endif  // USE_ESP_IDF
+#endif  // USE_ESP32

esphome/components/light/light_state.cpp

@@ -23,6 +23,9 @@ void LightState::setup() {
     effect->init_internal(this);
   }
 
+  // Start with loop disabled if idle - respects any effects/transitions set up during initialization
+  this->disable_loop_if_idle_();
+
   // When supported color temperature range is known, initialize color temperature setting within bounds.
   auto traits = this->get_traits();
   float min_mireds = traits.get_min_mireds();
@@ -125,6 +128,9 @@ void LightState::loop() {
       this->is_transformer_active_ = false;
       this->transformer_ = nullptr;
       this->target_state_reached_callback_.call();
+
+      // Disable loop if idle (no transformer and no effect)
+      this->disable_loop_if_idle_();
     }
   }
 
@@ -132,6 +138,8 @@ void LightState::loop() {
   if (this->next_write_) {
     this->next_write_ = false;
     this->output_->write_state(this);
+    // Disable loop if idle (no transformer and no effect)
+    this->disable_loop_if_idle_();
   }
 }
 
@@ -227,6 +235,8 @@ void LightState::start_effect_(uint32_t effect_index) {
   this->active_effect_index_ = effect_index;
   auto *effect = this->get_active_effect_();
   effect->start_internal();
+  // Enable loop while effect is active
+  this->enable_loop();
 }
 LightEffect *LightState::get_active_effect_() {
   if (this->active_effect_index_ == 0) {
@@ -241,6 +251,8 @@ void LightState::stop_effect_() {
     effect->stop();
   }
   this->active_effect_index_ = 0;
+  // Disable loop if idle (no effect and no transformer)
+  this->disable_loop_if_idle_();
 }
 
 void LightState::start_transition_(const LightColorValues &target, uint32_t length, bool set_remote_values) {
@@ -250,6 +262,8 @@ void LightState::start_transition_(const LightColorValues &target, uint32_t leng
   if (set_remote_values) {
     this->remote_values = target;
   }
+  // Enable loop while transition is active
+  this->enable_loop();
 }
 
 void LightState::start_flash_(const LightColorValues &target, uint32_t length, bool set_remote_values) {
@@ -265,6 +279,8 @@ void LightState::start_flash_(const LightColorValues &target, uint32_t length, b
   if (set_remote_values) {
     this->remote_values = target;
   };
+  // Enable loop while flash is active
+  this->enable_loop();
 }
 
 void LightState::set_immediately_(const LightColorValues &target, bool set_remote_values) {
@@ -276,6 +292,14 @@ void LightState::set_immediately_(const LightColorValues &target, bool set_remot
   }
   this->output_->update_state(this);
   this->next_write_ = true;
+  this->enable_loop();
+}
+
+void LightState::disable_loop_if_idle_() {
+  // Only disable loop if both transformer and effect are inactive, and no pending writes
+  if (this->transformer_ == nullptr && this->get_active_effect_() == nullptr && !this->next_write_) {
+    this->disable_loop();
+  }
 }
 
 void LightState::save_remote_values_() {

esphome/components/light/light_state.h

@@ -255,6 +255,9 @@ class LightState : public EntityBase, public Component {
   /// Internal method to save the current remote_values to the preferences
   void save_remote_values_();
 
+  /// Disable loop if neither transformer nor effect is active
+  void disable_loop_if_idle_();
+
   /// Store the output to allow effects to have more access.
   LightOutput *output_;
   /// The currently active transformer for this light (transition/flash).

esphome/components/logger/__init__.py

@@ -365,8 +365,10 @@ async def to_code(config):
     if CORE.is_esp32:
         if config[CONF_HARDWARE_UART] == USB_CDC:
             add_idf_sdkconfig_option("CONFIG_ESP_CONSOLE_USB_CDC", True)
+            cg.add_define("USE_LOGGER_UART_SELECTION_USB_CDC")
         elif config[CONF_HARDWARE_UART] == USB_SERIAL_JTAG:
             add_idf_sdkconfig_option("CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG", True)
+            cg.add_define("USE_LOGGER_UART_SELECTION_USB_SERIAL_JTAG")
     try:
         uart_selection(USB_SERIAL_JTAG)
         cg.add_define("USE_LOGGER_USB_SERIAL_JTAG")

esphome/components/logger/logger.cpp

@@ -65,7 +65,9 @@ void HOT Logger::log_vprintf_(uint8_t level, const char *tag, int line, const ch
     uint16_t buffer_at = 0;                         // Initialize buffer position
     this->format_log_to_buffer_with_terminator_(level, tag, line, format, args, console_buffer, &buffer_at,
                                                 MAX_CONSOLE_LOG_MSG_SIZE);
-    this->write_msg_(console_buffer);
+    // Add newline if platform needs it (ESP32 doesn't add via write_msg_)
+    this->add_newline_to_buffer_if_needed_(console_buffer, &buffer_at, MAX_CONSOLE_LOG_MSG_SIZE);
+    this->write_msg_(console_buffer, buffer_at);
   }
 
   // Reset the recursion guard for this task
@@ -131,18 +133,19 @@ void Logger::log_vprintf_(uint8_t level, const char *tag, int line, const __Flas
 
   // Save the offset before calling format_log_to_buffer_with_terminator_
   // since it will increment tx_buffer_at_ to the end of the formatted string
-  uint32_t msg_start = this->tx_buffer_at_;
+  uint16_t msg_start = this->tx_buffer_at_;
   this->format_log_to_buffer_with_terminator_(level, tag, line, this->tx_buffer_, args, this->tx_buffer_,
                                               &this->tx_buffer_at_, this->tx_buffer_size_);
 
-  // Write to console and send callback starting at the msg_start
-  if (this->baud_rate_ > 0) {
-    this->write_msg_(this->tx_buffer_ + msg_start);
-  }
-  size_t msg_length =
+  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);
 
+  // Write to console starting at the msg_start
+  this->write_tx_buffer_to_console_(msg_start, &msg_length);
+
   global_recursion_guard_ = false;
 }
 #endif  // USE_STORE_LOG_STR_IN_FLASH
@@ -209,9 +212,7 @@ void Logger::process_messages_() {
       // This ensures all log messages appear on the console in a clean, serialized manner
       // Note: Messages may appear slightly out of order due to async processing, but
       // this is preferred over corrupted/interleaved console output
-      if (this->baud_rate_ > 0) {
-        this->write_msg_(this->tx_buffer_);
-      }
+      this->write_tx_buffer_to_console_();
     }
   } else {
     // No messages to process, disable loop if appropriate

esphome/components/logger/logger.h

@@ -71,6 +71,17 @@ static constexpr uint16_t MAX_HEADER_SIZE = 128;
 // "0x" + 2 hex digits per byte + '\0'
 static constexpr size_t MAX_POINTER_REPRESENTATION = 2 + sizeof(void *) * 2 + 1;
 
+// Platform-specific: does write_msg_ add its own newline?
+// false: Caller must add newline to buffer before calling write_msg_ (ESP32, ESP8266, LibreTiny)
+//        Allows single write call with newline included for efficiency
+// true:  write_msg_ adds newline itself via puts()/println() (other platforms)
+//        Newline should NOT be added to buffer
+#if defined(USE_ESP32) || defined(USE_ESP8266) || defined(USE_LIBRETINY)
+static constexpr bool WRITE_MSG_ADDS_NEWLINE = false;
+#else
+static constexpr bool WRITE_MSG_ADDS_NEWLINE = true;
+#endif
+
 #if defined(USE_ESP32) || defined(USE_ESP8266) || defined(USE_RP2040) || defined(USE_LIBRETINY) || defined(USE_ZEPHYR)
 /** Enum for logging UART selection
  *
@@ -173,7 +184,7 @@ class Logger : public Component {
 
  protected:
   void process_messages_();
-  void write_msg_(const char *msg);
+  void write_msg_(const char *msg, size_t len);
 
   // Format a log message with printf-style arguments and write it to a buffer with header, footer, and null terminator
   // It's the caller's responsibility to initialize buffer_at (typically to 0)
@@ -200,6 +211,35 @@ class Logger : public Component {
     }
   }
 
+  // Helper to add newline to buffer for platforms that need it
+  // Modifies buffer_at to include the newline
+  inline void HOT add_newline_to_buffer_if_needed_(char *buffer, uint16_t *buffer_at, uint16_t buffer_size) {
+    if constexpr (!WRITE_MSG_ADDS_NEWLINE) {
+      // Add newline - don't need to maintain null termination
+      // write_msg_ now always receives explicit length, so we can safely overwrite the null terminator
+      // This is safe because:
+      // 1. Callbacks already received the message (before we add newline)
+      // 2. write_msg_ receives the length explicitly (doesn't need null terminator)
+      if (*buffer_at < buffer_size) {
+        buffer[(*buffer_at)++] = '\n';
+      } else if (buffer_size > 0) {
+        // Buffer was full - replace last char with newline to ensure it's visible
+        buffer[buffer_size - 1] = '\n';
+        *buffer_at = buffer_size;
+      }
+    }
+  }
+
+  // Helper to write tx_buffer_ to console if logging is enabled
+  // INTERNAL USE ONLY - offset > 0 requires length parameter to be non-null
+  inline void HOT write_tx_buffer_to_console_(uint16_t offset = 0, uint16_t *length = nullptr) {
+    if (this->baud_rate_ > 0) {
+      uint16_t *len_ptr = length ? length : &this->tx_buffer_at_;
+      this->add_newline_to_buffer_if_needed_(this->tx_buffer_ + offset, len_ptr, this->tx_buffer_size_ - offset);
+      this->write_msg_(this->tx_buffer_ + offset, *len_ptr);
+    }
+  }
+
   // Helper to format and send a log message to both console and callbacks
   inline void HOT log_message_to_buffer_and_send_(uint8_t level, const char *tag, int line, const char *format,
                                                   va_list args) {
@@ -208,10 +248,11 @@ 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_);
 
-    if (this->baud_rate_ > 0) {
-      this->write_msg_(this->tx_buffer_);  // If logging is enabled, write to console
-    }
+    // Callbacks get message WITHOUT newline (for API/MQTT/syslog)
     this->log_callback_.call(level, tag, this->tx_buffer_, this->tx_buffer_at_);
+
+    // Console gets message WITH newline (if platform needs it)
+    this->write_tx_buffer_to_console_();
   }
 
   // Write the body of the log message to the buffer
@@ -425,7 +466,9 @@ class Logger : public Component {
     }
 
     // Update buffer_at with the formatted length (handle truncation)
-    uint16_t formatted_len = (ret >= remaining) ? remaining : ret;
+    // When vsnprintf truncates (ret >= remaining), it writes (remaining - 1) chars + null terminator
+    // When it doesn't truncate (ret < remaining), it writes ret chars + null terminator
+    uint16_t formatted_len = (ret >= remaining) ? (remaining - 1) : ret;
     *buffer_at += formatted_len;
 
     // Remove all trailing newlines right after formatting

esphome/components/logger/logger_esp32.cpp

@@ -121,25 +121,23 @@ void Logger::pre_setup() {
   ESP_LOGI(TAG, "Log initialized");
 }
 
-void HOT Logger::write_msg_(const char *msg) {
-  if (
-#if defined(USE_LOGGER_USB_CDC) && !defined(USE_LOGGER_USB_SERIAL_JTAG)
-      this->uart_ == UART_SELECTION_USB_CDC
-#elif defined(USE_LOGGER_USB_SERIAL_JTAG) && !defined(USE_LOGGER_USB_CDC)
-      this->uart_ == UART_SELECTION_USB_SERIAL_JTAG
-#elif defined(USE_LOGGER_USB_CDC) && defined(USE_LOGGER_USB_SERIAL_JTAG)
-      this->uart_ == UART_SELECTION_USB_CDC || this->uart_ == UART_SELECTION_USB_SERIAL_JTAG
+void HOT Logger::write_msg_(const char *msg, size_t len) {
+  // Length is now always passed explicitly - no strlen() fallback needed
+
+#if defined(USE_LOGGER_UART_SELECTION_USB_CDC) || defined(USE_LOGGER_UART_SELECTION_USB_SERIAL_JTAG)
+  // USB CDC/JTAG - single write including newline (already in buffer)
+  // Use fwrite to stdout which goes through VFS to USB console
+  //
+  // Note: These defines indicate the user's YAML configuration choice (hardware_uart: USB_CDC/USB_SERIAL_JTAG).
+  // They are ONLY defined when the user explicitly selects USB as the logger output in their config.
+  // This is compile-time selection, not runtime detection - if USB is configured, it's always used.
+  // There is no fallback to regular UART if "USB isn't connected" - that's the user's responsibility
+  // to configure correctly for their hardware. This approach eliminates runtime overhead.
+  fwrite(msg, 1, len, stdout);
 #else
-      /* DISABLES CODE */ (false)  // NOLINT
+  // Regular UART - single write including newline (already in buffer)
+  uart_write_bytes(this->uart_num_, msg, len);
 #endif
-  ) {
-    puts(msg);
-  } else {
-    // Use tx_buffer_at_ if msg points to tx_buffer_, otherwise fall back to strlen
-    size_t len = (msg == this->tx_buffer_) ? this->tx_buffer_at_ : strlen(msg);
-    uart_write_bytes(this->uart_num_, msg, len);
-    uart_write_bytes(this->uart_num_, "\n", 1);
-  }
 }
 
 const LogString *Logger::get_uart_selection_() {

esphome/components/logger/logger_esp8266.cpp

@@ -33,7 +33,10 @@ void Logger::pre_setup() {
   ESP_LOGI(TAG, "Log initialized");
 }
 
-void HOT Logger::write_msg_(const char *msg) { this->hw_serial_->println(msg); }
+void HOT Logger::write_msg_(const char *msg, size_t len) {
+  // Single write with newline already in buffer (added by caller)
+  this->hw_serial_->write(msg, len);
+}
 
 const LogString *Logger::get_uart_selection_() {
   switch (this->uart_) {

esphome/components/logger/logger_host.cpp

@@ -3,7 +3,7 @@
 
 namespace esphome::logger {
 
-void HOT Logger::write_msg_(const char *msg) {
+void HOT Logger::write_msg_(const char *msg, size_t) {
   time_t rawtime;
   struct tm *timeinfo;
   char buffer[80];

esphome/components/logger/logger_libretiny.cpp

@@ -49,7 +49,7 @@ void Logger::pre_setup() {
   ESP_LOGI(TAG, "Log initialized");
 }
 
-void HOT Logger::write_msg_(const char *msg) { this->hw_serial_->println(msg); }
+void HOT Logger::write_msg_(const char *msg, size_t len) { this->hw_serial_->write(msg, len); }
 
 const LogString *Logger::get_uart_selection_() {
   switch (this->uart_) {

esphome/components/logger/logger_rp2040.cpp

@@ -27,7 +27,7 @@ void Logger::pre_setup() {
   ESP_LOGI(TAG, "Log initialized");
 }
 
-void HOT Logger::write_msg_(const char *msg) { this->hw_serial_->println(msg); }
+void HOT Logger::write_msg_(const char *msg, size_t) { this->hw_serial_->println(msg); }
 
 const LogString *Logger::get_uart_selection_() {
   switch (this->uart_) {

esphome/components/logger/logger_zephyr.cpp

@@ -62,7 +62,7 @@ void Logger::pre_setup() {
   ESP_LOGI(TAG, "Log initialized");
 }
 
-void HOT Logger::write_msg_(const char *msg) {
+void HOT Logger::write_msg_(const char *msg, size_t) {
 #ifdef CONFIG_PRINTK
   printk("%s\n", msg);
 #endif

esphome/components/ltr390/ltr390.cpp

@@ -104,12 +104,17 @@ void LTR390Component::read_uvs_() {
   }
 }
 
-void LTR390Component::read_mode_(int mode_index) {
-  // Set mode
-  LTR390MODE mode = std::get<0>(this->mode_funcs_[mode_index]);
-
+void LTR390Component::standby_() {
   std::bitset<8> ctrl = this->reg(LTR390_MAIN_CTRL).get();
-  ctrl[LTR390_CTRL_MODE] = mode;
+  ctrl[LTR390_CTRL_EN] = false;
+  this->reg(LTR390_MAIN_CTRL) = ctrl.to_ulong();
+  this->reading_ = false;
+}
+
+void LTR390Component::read_mode_(LTR390MODE mode) {
+  // Set mode
+  std::bitset<8> ctrl = this->reg(LTR390_MAIN_CTRL).get();
+  ctrl[LTR390_CTRL_MODE] = (mode == LTR390_MODE_UVS);
   ctrl[LTR390_CTRL_EN] = true;
   this->reg(LTR390_MAIN_CTRL) = ctrl.to_ulong();
 
@@ -129,21 +134,18 @@ void LTR390Component::read_mode_(int mode_index) {
   }
 
   // After the sensor integration time do the following
-  this->set_timeout(int_time + LTR390_WAKEUP_TIME + LTR390_SETTLE_TIME, [this, mode_index]() {
-    // Read from the sensor
-    std::get<1>(this->mode_funcs_[mode_index])();
-
-    // If there are more modes to read then begin the next
-    // otherwise stop
-    if (mode_index + 1 < (int) this->mode_funcs_.size()) {
-      this->read_mode_(mode_index + 1);
+  this->set_timeout(int_time + LTR390_WAKEUP_TIME + LTR390_SETTLE_TIME, [this, mode]() {
+    // Read from the sensor and continue to next mode or standby
+    if (mode == LTR390_MODE_ALS) {
+      this->read_als_();
+      if (this->enabled_modes_ & ENABLED_MODE_UVS) {
+        this->read_mode_(LTR390_MODE_UVS);
+        return;
+      }
     } else {
-      // put sensor in standby
-      std::bitset<8> ctrl = this->reg(LTR390_MAIN_CTRL).get();
-      ctrl[LTR390_CTRL_EN] = false;
-      this->reg(LTR390_MAIN_CTRL) = ctrl.to_ulong();
-      this->reading_ = false;
+      this->read_uvs_();
     }
+    this->standby_();
   });
 }
 
@@ -172,14 +174,12 @@ void LTR390Component::setup() {
   // Set sensor read state
   this->reading_ = false;
 
-  // If we need the light sensor then add to the list
+  // Determine which modes are enabled based on configured sensors
   if (this->light_sensor_ != nullptr || this->als_sensor_ != nullptr) {
-    this->mode_funcs_.emplace_back(LTR390_MODE_ALS, std::bind(&LTR390Component::read_als_, this));
+    this->enabled_modes_ |= ENABLED_MODE_ALS;
   }
-
-  // If we need the UV sensor then add to the list
   if (this->uvi_sensor_ != nullptr || this->uv_sensor_ != nullptr) {
-    this->mode_funcs_.emplace_back(LTR390_MODE_UVS, std::bind(&LTR390Component::read_uvs_, this));
+    this->enabled_modes_ |= ENABLED_MODE_UVS;
   }
 }
 
@@ -195,10 +195,11 @@ void LTR390Component::dump_config() {
 }
 
 void LTR390Component::update() {
-  if (!this->reading_ && !mode_funcs_.empty()) {
-    this->reading_ = true;
-    this->read_mode_(0);
-  }
+  if (this->reading_ || this->enabled_modes_ == 0)
+    return;
+
+  this->reading_ = true;
+  this->read_mode_((this->enabled_modes_ & ENABLED_MODE_ALS) ? LTR390_MODE_ALS : LTR390_MODE_UVS);
 }
 
 }  // namespace ltr390

esphome/components/ltr390/ltr390.h

@@ -1,7 +1,5 @@
 #pragma once
 
-#include <tuple>
-#include <vector>
 #include "esphome/components/i2c/i2c.h"
 #include "esphome/components/sensor/sensor.h"
 #include "esphome/core/component.h"
@@ -60,17 +58,19 @@ class LTR390Component : public PollingComponent, public i2c::I2CDevice {
   void set_uv_sensor(sensor::Sensor *uv_sensor) { this->uv_sensor_ = uv_sensor; }
 
  protected:
+  static constexpr uint8_t ENABLED_MODE_ALS = 1 << 0;
+  static constexpr uint8_t ENABLED_MODE_UVS = 1 << 1;
+
   optional<uint32_t> read_sensor_data_(LTR390MODE mode);
 
   void read_als_();
   void read_uvs_();
 
-  void read_mode_(int mode_index);
+  void read_mode_(LTR390MODE mode);
+  void standby_();
 
-  bool reading_;
-
-  // a list of modes and corresponding read functions
-  std::vector<std::tuple<LTR390MODE, std::function<void()>>> mode_funcs_;
+  bool reading_{false};
+  uint8_t enabled_modes_{0};
 
   LTR390GAIN gain_als_;
   LTR390GAIN gain_uv_;

esphome/components/lvgl/layout.py

@@ -36,6 +36,8 @@ from .defines import (
 )
 from .lv_validation import padding, size
 
+CONF_MULTIPLE_WIDGETS_PER_CELL = "multiple_widgets_per_cell"
+
 cell_alignments = LV_CELL_ALIGNMENTS.one_of
 grid_alignments = LV_GRID_ALIGNMENTS.one_of
 flex_alignments = LV_FLEX_ALIGNMENTS.one_of
@@ -220,6 +222,7 @@ class GridLayout(Layout):
                 cv.Optional(CONF_GRID_ROW_ALIGN): grid_alignments,
                 cv.Optional(CONF_PAD_ROW): padding,
                 cv.Optional(CONF_PAD_COLUMN): padding,
+                cv.Optional(CONF_MULTIPLE_WIDGETS_PER_CELL, default=False): cv.boolean,
             },
             {
                 cv.Optional(CONF_GRID_CELL_ROW_POS): cv.positive_int,
@@ -263,6 +266,7 @@ class GridLayout(Layout):
         # should be guaranteed to be a dict at this point
         assert isinstance(layout, dict)
         assert layout.get(CONF_TYPE).lower() == TYPE_GRID
+        allow_multiple = layout.get(CONF_MULTIPLE_WIDGETS_PER_CELL, False)
         rows = len(layout[CONF_GRID_ROWS])
         columns = len(layout[CONF_GRID_COLUMNS])
         used_cells = [[None] * columns for _ in range(rows)]
@@ -299,7 +303,10 @@ class GridLayout(Layout):
                             f"exceeds grid size {rows}x{columns}",
                             [CONF_WIDGETS, index],
                         )
-                    if used_cells[row + i][column + j] is not None:
+                    if (
+                        not allow_multiple
+                        and used_cells[row + i][column + j] is not None
+                    ):
                         raise cv.Invalid(
                             f"Cell span {row + i}/{column + j} already occupied by widget at index {used_cells[row + i][column + j]}",
                             [CONF_WIDGETS, index],

esphome/components/lvgl/lvgl_esphome.cpp

@@ -466,7 +466,7 @@ void LvglComponent::setup() {
     buffer = lv_custom_mem_alloc(buf_bytes);  // NOLINT
   }
   if (buffer == nullptr) {
-    this->status_set_error("Memory allocation failure");
+    this->status_set_error(LOG_STR("Memory allocation failure"));
     this->mark_failed();
     return;
   }
@@ -479,7 +479,7 @@ void LvglComponent::setup() {
   if (this->rotation != display::DISPLAY_ROTATION_0_DEGREES) {
     this->rotate_buf_ = static_cast<lv_color_t *>(lv_custom_mem_alloc(buf_bytes));  // NOLINT
     if (this->rotate_buf_ == nullptr) {
-      this->status_set_error("Memory allocation failure");
+      this->status_set_error(LOG_STR("Memory allocation failure"));
       this->mark_failed();
       return;
     }

esphome/components/lvgl/widgets/arc.py

@@ -20,7 +20,13 @@ from ..defines import (
     CONF_START_ANGLE,
     literal,
 )
-from ..lv_validation import get_start_value, lv_angle_degrees, lv_float, lv_int
+from ..lv_validation import (
+    get_start_value,
+    lv_angle_degrees,
+    lv_float,
+    lv_int,
+    lv_positive_int,
+)
 from ..lvcode import lv, lv_expr, lv_obj
 from ..types import LvNumber, NumberType
 from . import Widget
@@ -36,13 +42,20 @@ ARC_SCHEMA = cv.Schema(
         cv.Optional(CONF_ROTATION, default=0.0): lv_angle_degrees,
         cv.Optional(CONF_ADJUSTABLE, default=False): bool,
         cv.Optional(CONF_MODE, default="NORMAL"): ARC_MODES.one_of,
-        cv.Optional(CONF_CHANGE_RATE, default=720): cv.uint16_t,
+        cv.Optional(CONF_CHANGE_RATE, default=720): lv_positive_int,
     }
 )
 
 ARC_MODIFY_SCHEMA = cv.Schema(
     {
         cv.Optional(CONF_VALUE): lv_float,
+        cv.Optional(CONF_MIN_VALUE): lv_int,
+        cv.Optional(CONF_MAX_VALUE): lv_int,
+        cv.Optional(CONF_START_ANGLE): lv_angle_degrees,
+        cv.Optional(CONF_END_ANGLE): lv_angle_degrees,
+        cv.Optional(CONF_ROTATION): lv_angle_degrees,
+        cv.Optional(CONF_MODE): ARC_MODES.one_of,
+        cv.Optional(CONF_CHANGE_RATE): lv_positive_int,
     }
 )
 
@@ -58,17 +71,34 @@ class ArcType(NumberType):
         )
 
     async def to_code(self, w: Widget, config):
-        if CONF_MIN_VALUE in config:
+        if CONF_MIN_VALUE in config and CONF_MAX_VALUE in config:
             max_value = await lv_int.process(config[CONF_MAX_VALUE])
             min_value = await lv_int.process(config[CONF_MIN_VALUE])
             lv.arc_set_range(w.obj, min_value, max_value)
-            start = await lv_angle_degrees.process(config[CONF_START_ANGLE])
-            end = await lv_angle_degrees.process(config[CONF_END_ANGLE])
-            rotation = await lv_angle_degrees.process(config[CONF_ROTATION])
-            lv.arc_set_bg_angles(w.obj, start, end)
-            lv.arc_set_rotation(w.obj, rotation)
-            lv.arc_set_mode(w.obj, literal(config[CONF_MODE]))
-            lv.arc_set_change_rate(w.obj, config[CONF_CHANGE_RATE])
+        elif CONF_MIN_VALUE in config:
+            max_value = w.get_property(CONF_MAX_VALUE)
+            min_value = await lv_int.process(config[CONF_MIN_VALUE])
+            lv.arc_set_range(w.obj, min_value, max_value)
+        elif CONF_MAX_VALUE in config:
+            max_value = await lv_int.process(config[CONF_MAX_VALUE])
+            min_value = w.get_property(CONF_MIN_VALUE)
+            lv.arc_set_range(w.obj, min_value, max_value)
+
+        await w.set_property(
+            CONF_START_ANGLE,
+            await lv_angle_degrees.process(config.get(CONF_START_ANGLE)),
+        )
+        await w.set_property(
+            CONF_END_ANGLE, await lv_angle_degrees.process(config.get(CONF_END_ANGLE))
+        )
+        await w.set_property(
+            CONF_ROTATION, await lv_angle_degrees.process(config.get(CONF_ROTATION))
+        )
+        await w.set_property(CONF_MODE, config)
+        await w.set_property(
+            CONF_CHANGE_RATE,
+            await lv_positive_int.process(config.get(CONF_CHANGE_RATE)),
+        )
 
         if CONF_ADJUSTABLE in config:
             if not config[CONF_ADJUSTABLE]:
@@ -78,9 +108,7 @@ class ArcType(NumberType):
                 # For some reason arc does not get automatically added to the default group
                 lv.group_add_obj(lv_expr.group_get_default(), w.obj)
 
-        value = await get_start_value(config)
-        if value is not None:
-            lv.arc_set_value(w.obj, value)
+        await w.set_property(CONF_VALUE, await get_start_value(config))
 
 
 arc_spec = ArcType()

esphome/components/max17043/max17043.cpp

@@ -57,14 +57,14 @@ void MAX17043Component::setup() {
 
   if (config_reg != MAX17043_CONFIG_POWER_UP_DEFAULT) {
     ESP_LOGE(TAG, "Device does not appear to be a MAX17043");
-    this->status_set_error("unrecognised");
+    this->status_set_error(LOG_STR("unrecognised"));
     this->mark_failed();
     return;
   }
 
   // need to write back to config register to reset the sleep bit
   if (!this->write_byte_16(MAX17043_CONFIG, MAX17043_CONFIG_POWER_UP_DEFAULT)) {
-    this->status_set_error("sleep reset failed");
+    this->status_set_error(LOG_STR("sleep reset failed"));
     this->mark_failed();
     return;
   }

esphome/components/mcp3204/mcp3204.cpp

@@ -16,16 +16,21 @@ void MCP3204::dump_config() {
   ESP_LOGCONFIG(TAG, "  Reference Voltage: %.2fV", this->reference_voltage_);
 }
 
-float MCP3204::read_data(uint8_t pin) {
-  uint8_t adc_primary_config = 0b00000110 | (pin >> 2);
-  uint8_t adc_secondary_config = pin << 6;
+float MCP3204::read_data(uint8_t pin, bool differential) {
+  uint8_t command, b0, b1;
+
+  command = (1 << 6) |                       // start bit
+            ((differential ? 0 : 1) << 5) |  // single or differential bit
+            ((pin & 0x07) << 2);             // pin
+
   this->enable();
-  this->transfer_byte(adc_primary_config);
-  uint8_t adc_primary_byte = this->transfer_byte(adc_secondary_config);
-  uint8_t adc_secondary_byte = this->transfer_byte(0x00);
+  this->transfer_byte(command);
+  b0 = this->transfer_byte(0x00);
+  b1 = this->transfer_byte(0x00);
   this->disable();
-  uint16_t digital_value = (adc_primary_byte << 8 | adc_secondary_byte) & 0b111111111111;
-  return float(digital_value) / 4096.000 * this->reference_voltage_;
+
+  uint16_t digital_value = encode_uint16(b0, b1) >> 4;
+  return float(digital_value) / 4096.000 * this->reference_voltage_;  // in V
 }
 
 }  // namespace mcp3204

esphome/components/mcp3204/mcp3204.h

@@ -18,7 +18,7 @@ class MCP3204 : public Component,
   void setup() override;
   void dump_config() override;
   float get_setup_priority() const override;
-  float read_data(uint8_t pin);
+  float read_data(uint8_t pin, bool differential);
 
  protected:
   float reference_voltage_;

esphome/components/mcp3204/sensor/__init__.py

@@ -13,6 +13,7 @@ MCP3204Sensor = mcp3204_ns.class_(
     "MCP3204Sensor", sensor.Sensor, cg.PollingComponent, voltage_sampler.VoltageSampler
 )
 CONF_MCP3204_ID = "mcp3204_id"
+CONF_DIFF_MODE = "diff_mode"
 
 CONFIG_SCHEMA = (
     sensor.sensor_schema(MCP3204Sensor)
@@ -20,6 +21,7 @@ CONFIG_SCHEMA = (
         {
             cv.GenerateID(CONF_MCP3204_ID): cv.use_id(MCP3204),
             cv.Required(CONF_NUMBER): cv.int_range(min=0, max=7),
+            cv.Optional(CONF_DIFF_MODE, default=False): cv.boolean,
         }
     )
     .extend(cv.polling_component_schema("60s"))
@@ -30,6 +32,7 @@ async def to_code(config):
     var = cg.new_Pvariable(
         config[CONF_ID],
         config[CONF_NUMBER],
+        config[CONF_DIFF_MODE],
     )
     await cg.register_parented(var, config[CONF_MCP3204_ID])
     await cg.register_component(var, config)

esphome/components/mcp3204/sensor/mcp3204_sensor.cpp

@@ -7,16 +7,15 @@ namespace mcp3204 {
 
 static const char *const TAG = "mcp3204.sensor";
 
-MCP3204Sensor::MCP3204Sensor(uint8_t pin) : pin_(pin) {}
-
 float MCP3204Sensor::get_setup_priority() const { return setup_priority::DATA; }
 
 void MCP3204Sensor::dump_config() {
   LOG_SENSOR("", "MCP3204 Sensor", this);
   ESP_LOGCONFIG(TAG, "  Pin: %u", this->pin_);
+  ESP_LOGCONFIG(TAG, "  Differential Mode: %s", YESNO(this->differential_mode_));
   LOG_UPDATE_INTERVAL(this);
 }
-float MCP3204Sensor::sample() { return this->parent_->read_data(this->pin_); }
+float MCP3204Sensor::sample() { return this->parent_->read_data(this->pin_, this->differential_mode_); }
 void MCP3204Sensor::update() { this->publish_state(this->sample()); }
 
 }  // namespace mcp3204

esphome/components/mcp3204/sensor/mcp3204_sensor.h

@@ -15,7 +15,7 @@ class MCP3204Sensor : public PollingComponent,
                       public sensor::Sensor,
                       public voltage_sampler::VoltageSampler {
  public:
-  MCP3204Sensor(uint8_t pin);
+  MCP3204Sensor(uint8_t pin, bool differential_mode) : pin_(pin), differential_mode_(differential_mode) {}
 
   void update() override;
   void dump_config() override;
@@ -24,6 +24,7 @@ class MCP3204Sensor : public PollingComponent,
 
  protected:
   uint8_t pin_;
+  bool differential_mode_;
 };
 
 }  // namespace mcp3204

esphome/components/mdns/mdns_component.cpp

@@ -118,7 +118,7 @@ void MDNSComponent::compile_records_(StaticVector<MDNSService, MDNS_SERVICE_COUN
     MDNS_STATIC_CONST_CHAR(TXT_API_ENCRYPTION, "api_encryption");
     MDNS_STATIC_CONST_CHAR(TXT_API_ENCRYPTION_SUPPORTED, "api_encryption_supported");
     MDNS_STATIC_CONST_CHAR(NOISE_ENCRYPTION, "Noise_NNpsk0_25519_ChaChaPoly_SHA256");
-    bool has_psk = api::global_api_server->get_noise_ctx()->has_psk();
+    bool has_psk = api::global_api_server->get_noise_ctx().has_psk();
     const char *encryption_key = has_psk ? TXT_API_ENCRYPTION : TXT_API_ENCRYPTION_SUPPORTED;
     txt_records.push_back({MDNS_STR(encryption_key), MDNS_STR(NOISE_ENCRYPTION)});
 #endif

esphome/components/mipi_dsi/mipi_dsi.cpp

@@ -11,6 +11,12 @@ static bool notify_refresh_ready(esp_lcd_panel_handle_t panel, esp_lcd_dpi_panel
   xSemaphoreGiveFromISR(sem, &need_yield);
   return (need_yield == pdTRUE);
 }
+
+void MIPI_DSI::smark_failed(const LogString *message, esp_err_t err) {
+  ESP_LOGE(TAG, "%s: %s", LOG_STR_ARG(message), esp_err_to_name(err));
+  this->mark_failed(message);
+}
+
 void MIPI_DSI::setup() {
   ESP_LOGCONFIG(TAG, "Running Setup");
 
@@ -31,7 +37,7 @@ void MIPI_DSI::setup() {
   };
   auto err = esp_lcd_new_dsi_bus(&bus_config, &this->bus_handle_);
   if (err != ESP_OK) {
-    this->smark_failed("lcd_new_dsi_bus failed", err);
+    this->smark_failed(LOG_STR("lcd_new_dsi_bus failed"), err);
     return;
   }
   esp_lcd_dbi_io_config_t dbi_config = {
@@ -41,7 +47,7 @@ void MIPI_DSI::setup() {
   };
   err = esp_lcd_new_panel_io_dbi(this->bus_handle_, &dbi_config, &this->io_handle_);
   if (err != ESP_OK) {
-    this->smark_failed("new_panel_io_dbi failed", err);
+    this->smark_failed(LOG_STR("new_panel_io_dbi failed"), err);
     return;
   }
   auto pixel_format = LCD_COLOR_PIXEL_FORMAT_RGB565;
@@ -69,7 +75,7 @@ void MIPI_DSI::setup() {
                                            }};
   err = esp_lcd_new_panel_dpi(this->bus_handle_, &dpi_config, &this->handle_);
   if (err != ESP_OK) {
-    this->smark_failed("esp_lcd_new_panel_dpi failed", err);
+    this->smark_failed(LOG_STR("esp_lcd_new_panel_dpi failed"), err);
     return;
   }
   if (this->reset_pin_ != nullptr) {
@@ -86,14 +92,14 @@ void MIPI_DSI::setup() {
   auto when = millis() + 120;
   err = esp_lcd_panel_init(this->handle_);
   if (err != ESP_OK) {
-    this->smark_failed("esp_lcd_init failed", err);
+    this->smark_failed(LOG_STR("esp_lcd_init failed"), err);
     return;
   }
   size_t index = 0;
   auto &vec = this->init_sequence_;
   while (index != vec.size()) {
     if (vec.size() - index < 2) {
-      this->mark_failed("Malformed init sequence");
+      this->mark_failed(LOG_STR("Malformed init sequence"));
       return;
     }
     uint8_t cmd = vec[index++];
@@ -104,7 +110,7 @@ void MIPI_DSI::setup() {
     } else {
       uint8_t num_args = x & 0x7F;
       if (vec.size() - index < num_args) {
-        this->mark_failed("Malformed init sequence");
+        this->mark_failed(LOG_STR("Malformed init sequence"));
         return;
       }
       if (cmd == SLEEP_OUT) {
@@ -119,7 +125,7 @@ void MIPI_DSI::setup() {
                 format_hex_pretty(ptr, num_args, '.', false).c_str());
       err = esp_lcd_panel_io_tx_param(this->io_handle_, cmd, ptr, num_args);
       if (err != ESP_OK) {
-        this->smark_failed("lcd_panel_io_tx_param failed", err);
+        this->smark_failed(LOG_STR("lcd_panel_io_tx_param failed"), err);
         return;
       }
       index += num_args;
@@ -134,7 +140,7 @@ void MIPI_DSI::setup() {
 
   err = (esp_lcd_dpi_panel_register_event_callbacks(this->handle_, &cbs, this->io_lock_));
   if (err != ESP_OK) {
-    this->smark_failed("Failed to register callbacks", err);
+    this->smark_failed(LOG_STR("Failed to register callbacks"), err);
     return;
   }
 
@@ -216,7 +222,7 @@ bool MIPI_DSI::check_buffer_() {
   RAMAllocator<uint8_t> allocator;
   this->buffer_ = allocator.allocate(this->height_ * this->width_ * bytes_per_pixel);
   if (this->buffer_ == nullptr) {
-    this->mark_failed("Could not allocate buffer for display!");
+    this->mark_failed(LOG_STR("Could not allocate buffer for display!"));
     return false;
   }
   return true;

esphome/components/mipi_dsi/mipi_dsi.h

@@ -62,10 +62,7 @@ class MIPI_DSI : public display::Display {
   void set_lanes(uint8_t lanes) { this->lanes_ = lanes; }
   void set_madctl(uint8_t madctl) { this->madctl_ = madctl; }
 
-  void smark_failed(const char *message, esp_err_t err) {
-    auto str = str_sprintf("Setup failed: %s: %s", message, esp_err_to_name(err));
-    this->mark_failed(str.c_str());
-  }
+  void smark_failed(const LogString *message, esp_err_t err);
 
   void update() override;
 

esphome/components/mipi_dsi/models/guition.py

@@ -35,3 +35,70 @@ DriverChip(
         (0x10, 0x0C), (0x11, 0x0C), (0x12, 0x0C), (0x13, 0x0C), (0x30, 0x00),
     ],
 )
+
+
+# JC4880P443 Driver Configuration (ST7701)
+# Using parameters from esp_lcd_st7701.h and the working full init sequence
+# ----------------------------------------------------------------------------------------------------------------------
+# * Resolution: 480x800
+# * PCLK Frequency: 34 MHz
+# * DSI Lane Bit Rate: 500 Mbps (using 2-Lane DSI configuration)
+# * Horizontal Timing (hsync_pulse_width=12, hsync_back_porch=42, hsync_front_porch=42)
+# * Vertical Timing (vsync_pulse_width=2, vsync_back_porch=8, vsync_front_porch=166)
+# ----------------------------------------------------------------------------------------------------------------------
+DriverChip(
+    "JC4880P443",
+    width=480,
+    height=800,
+    hsync_back_porch=42,
+    hsync_pulse_width=12,
+    hsync_front_porch=42,
+    vsync_back_porch=8,
+    vsync_pulse_width=2,
+    vsync_front_porch=166,
+    pclk_frequency="34MHz",
+    lane_bit_rate="500Mbps",
+    swap_xy=cv.UNDEFINED,
+    color_order="RGB",
+    reset_pin=5,
+    initsequence=[
+        (0xFF, 0x77, 0x01, 0x00, 0x00, 0x13),
+        (0xEF, 0x08),
+        (0xFF, 0x77, 0x01, 0x00, 0x00, 0x10),
+        (0xC0, 0x63, 0x00),
+        (0xC1, 0x0D, 0x02),
+        (0xC2, 0x10, 0x08),
+        (0xCC, 0x10),
+        (0xB0, 0x80, 0x09, 0x53, 0x0C, 0xD0, 0x07, 0x0C, 0x09, 0x09, 0x28, 0x06, 0xD4, 0x13, 0x69, 0x2B, 0x71),
+        (0xB1, 0x80, 0x94, 0x5A, 0x10, 0xD3, 0x06, 0x0A, 0x08, 0x08, 0x25, 0x03, 0xD3, 0x12, 0x66, 0x6A, 0x0D),
+        (0xFF, 0x77, 0x01, 0x00, 0x00, 0x11),
+        (0xB0, 0x5D),
+        (0xB1, 0x58),
+        (0xB2, 0x87),
+        (0xB3, 0x80),
+        (0xB5, 0x4E),
+        (0xB7, 0x85),
+        (0xB8, 0x21),
+        (0xB9, 0x10, 0x1F),
+        (0xBB, 0x03),
+        (0xBC, 0x00),
+        (0xC1, 0x78),
+        (0xC2, 0x78),
+        (0xD0, 0x88),
+        (0xE0, 0x00, 0x3A, 0x02),
+        (0xE1, 0x04, 0xA0, 0x00, 0xA0, 0x05, 0xA0, 0x00, 0xA0, 0x00, 0x40, 0x40),
+        (0xE2, 0x30, 0x00, 0x40, 0x40, 0x32, 0xA0, 0x00, 0xA0, 0x00, 0xA0, 0x00, 0xA0, 0x00),
+        (0xE3, 0x00, 0x00, 0x33, 0x33),
+        (0xE4, 0x44, 0x44),
+        (0xE5, 0x09, 0x2E, 0xA0, 0xA0, 0x0B, 0x30, 0xA0, 0xA0, 0x05, 0x2A, 0xA0, 0xA0, 0x07, 0x2C, 0xA0, 0xA0),
+        (0xE6, 0x00, 0x00, 0x33, 0x33),
+        (0xE7, 0x44, 0x44),
+        (0xE8, 0x08, 0x2D, 0xA0, 0xA0, 0x0A, 0x2F, 0xA0, 0xA0, 0x04, 0x29, 0xA0, 0xA0, 0x06, 0x2B, 0xA0, 0xA0),
+        (0xEB, 0x00, 0x00, 0x4E, 0x4E, 0x00, 0x00, 0x00),
+        (0xEC, 0x08, 0x01),
+        (0xED, 0xB0, 0x2B, 0x98, 0xA4, 0x56, 0x7F, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0x65, 0x4A, 0x89, 0xB2, 0x0B),
+        (0xEF, 0x08, 0x08, 0x08, 0x45, 0x3F, 0x54),
+        (0xFF, 0x77, 0x01, 0x00, 0x00, 0x00),
+    ]
+)
+# fmt: on

esphome/components/mipi_rgb/mipi_rgb.cpp

@@ -73,7 +73,7 @@ void MipiRgbSpi::write_init_sequence_() {
   auto &vec = this->init_sequence_;
   while (index != vec.size()) {
     if (vec.size() - index < 2) {
-      this->mark_failed("Malformed init sequence");
+      this->mark_failed(LOG_STR("Malformed init sequence"));
       return;
     }
     uint8_t cmd = vec[index++];
@@ -84,7 +84,7 @@ void MipiRgbSpi::write_init_sequence_() {
     } else {
       uint8_t num_args = x & 0x7F;
       if (vec.size() - index < num_args) {
-        this->mark_failed("Malformed init sequence");
+        this->mark_failed(LOG_STR("Malformed init sequence"));
         return;
       }
       if (cmd == SLEEP_OUT) {
@@ -164,8 +164,8 @@ void MipiRgb::common_setup_() {
   if (err == ESP_OK)
     err = esp_lcd_panel_init(this->handle_);
   if (err != ESP_OK) {
-    auto msg = str_sprintf("lcd setup failed: %s", esp_err_to_name(err));
-    this->mark_failed(msg.c_str());
+    ESP_LOGE(TAG, "lcd setup failed: %s", esp_err_to_name(err));
+    this->mark_failed(LOG_STR("lcd setup failed"));
   }
   ESP_LOGCONFIG(TAG, "MipiRgb setup complete");
 }
@@ -249,7 +249,7 @@ bool MipiRgb::check_buffer_() {
   RAMAllocator<uint16_t> allocator;
   this->buffer_ = allocator.allocate(this->height_ * this->width_);
   if (this->buffer_ == nullptr) {
-    this->mark_failed("Could not allocate buffer for display!");
+    this->mark_failed(LOG_STR("Could not allocate buffer for display!"));
     return false;
   }
   return true;

esphome/components/mipi_spi/mipi_spi.h

@@ -478,7 +478,7 @@ class MipiSpiBuffer : public MipiSpi<BUFFERTYPE, BUFFERPIXEL, IS_BIG_ENDIAN, DIS
     RAMAllocator<BUFFERTYPE> allocator{};
     this->buffer_ = allocator.allocate(BUFFER_WIDTH * BUFFER_HEIGHT / FRACTION);
     if (this->buffer_ == nullptr) {
-      this->mark_failed("Buffer allocation failed");
+      this->mark_failed(LOG_STR("Buffer allocation failed"));
     }
   }
 

esphome/components/mixer/speaker/mixer_speaker.cpp

@@ -78,19 +78,20 @@ void SourceSpeaker::loop() {
       } else {
         switch (err) {
           case ESP_ERR_NO_MEM:
-            this->status_set_error("Failed to start mixer: not enough memory");
+            this->status_set_error(LOG_STR("Failed to start mixer: not enough memory"));
             break;
           case ESP_ERR_NOT_SUPPORTED:
-            this->status_set_error("Failed to start mixer: unsupported bits per sample");
+            this->status_set_error(LOG_STR("Failed to start mixer: unsupported bits per sample"));
             break;
           case ESP_ERR_INVALID_ARG:
-            this->status_set_error("Failed to start mixer: audio stream isn't compatible with the other audio stream.");
+            this->status_set_error(
+                LOG_STR("Failed to start mixer: audio stream isn't compatible with the other audio stream."));
             break;
           case ESP_ERR_INVALID_STATE:
-            this->status_set_error("Failed to start mixer: mixer task failed to start");
+            this->status_set_error(LOG_STR("Failed to start mixer: mixer task failed to start"));
             break;
           default:
-            this->status_set_error("Failed to start mixer");
+            this->status_set_error(LOG_STR("Failed to start mixer"));
             break;
         }
 
@@ -317,7 +318,7 @@ void MixerSpeaker::loop() {
     xEventGroupClearBits(this->event_group_, MixerEventGroupBits::STATE_STARTING);
   }
   if (event_group_bits & MixerEventGroupBits::ERR_ESP_NO_MEM) {
-    this->status_set_error("Failed to allocate the mixer's internal buffer");
+    this->status_set_error(LOG_STR("Failed to allocate the mixer's internal buffer"));
     xEventGroupClearBits(this->event_group_, MixerEventGroupBits::ERR_ESP_NO_MEM);
   }
   if (event_group_bits & MixerEventGroupBits::STATE_RUNNING) {

esphome/components/mqtt/mqtt_client.cpp

@@ -140,7 +140,7 @@ void MQTTClientComponent::send_device_info_() {
 #endif
 
 #ifdef USE_API_NOISE
-        root[api::global_api_server->get_noise_ctx()->has_psk() ? "api_encryption" : "api_encryption_supported"] =
+        root[api::global_api_server->get_noise_ctx().has_psk() ? "api_encryption" : "api_encryption_supported"] =
             "Noise_NNpsk0_25519_ChaChaPoly_SHA256";
 #endif
       },

esphome/components/nau7802/nau7802.cpp

@@ -278,7 +278,7 @@ void NAU7802Sensor::loop() {
       this->set_calibration_failure_(true);
       this->state_ = CalibrationState::INACTIVE;
       ESP_LOGE(TAG, "Failed to calibrate sensor");
-      this->status_set_error("Calibration Failed");
+      this->status_set_error(LOG_STR("Calibration Failed"));
       return;
     }
 

esphome/components/nextion/nextion_upload_arduino.cpp

@@ -174,6 +174,9 @@ bool Nextion::upload_tft(uint32_t baud_rate, bool exit_reparse) {
 
   // Check if baud rate is supported
   this->original_baud_rate_ = this->parent_->get_baud_rate();
+  if (baud_rate <= 0) {
+    baud_rate = this->original_baud_rate_;
+  }
   ESP_LOGD(TAG, "Baud rate: %" PRIu32, baud_rate);
 
   // Define the configuration for the HTTP client

esphome/components/nextion/nextion_upload_idf.cpp

@@ -177,6 +177,9 @@ bool Nextion::upload_tft(uint32_t baud_rate, bool exit_reparse) {
 
   // Check if baud rate is supported
   this->original_baud_rate_ = this->parent_->get_baud_rate();
+  if (baud_rate <= 0) {
+    baud_rate = this->original_baud_rate_;
+  }
   ESP_LOGD(TAG, "Baud rate: %" PRIu32, baud_rate);
 
   // Define the configuration for the HTTP client

esphome/components/online_image/png_image.cpp

@@ -2,6 +2,7 @@
 #ifdef USE_ONLINE_IMAGE_PNG_SUPPORT
 
 #include "esphome/components/display/display_buffer.h"
+#include "esphome/core/application.h"
 #include "esphome/core/helpers.h"
 #include "esphome/core/log.h"
 
@@ -38,6 +39,14 @@ static void draw_callback(pngle_t *pngle, uint32_t x, uint32_t y, uint32_t w, ui
   PngDecoder *decoder = (PngDecoder *) pngle_get_user_data(pngle);
   Color color(rgba[0], rgba[1], rgba[2], rgba[3]);
   decoder->draw(x, y, w, h, color);
+
+  // Feed watchdog periodically to avoid triggering during long decode operations.
+  // Feed every 1024 pixels to balance efficiency and responsiveness.
+  uint32_t pixels = w * h;
+  decoder->increment_pixels_decoded(pixels);
+  if ((decoder->get_pixels_decoded() % 1024) < pixels) {
+    App.feed_wdt();
+  }
 }
 
 PngDecoder::PngDecoder(OnlineImage *image) : ImageDecoder(image) {

esphome/components/online_image/png_image.h

@@ -25,9 +25,13 @@ class PngDecoder : public ImageDecoder {
   int prepare(size_t download_size) override;
   int HOT decode(uint8_t *buffer, size_t size) override;
 
+  void increment_pixels_decoded(uint32_t count) { this->pixels_decoded_ += count; }
+  uint32_t get_pixels_decoded() const { return this->pixels_decoded_; }
+
  protected:
   RAMAllocator<pngle_t> allocator_;
   pngle_t *pngle_;
+  uint32_t pixels_decoded_{0};
 };
 
 }  // namespace online_image