[sml] Use constexpr std::array for START_SEQ constant

CODEOWNERS

@@ -482,7 +482,6 @@ esphome/components/switch/* @esphome/core
 esphome/components/switch/binary_sensor/* @ssieb
 esphome/components/sx126x/* @swoboda1337
 esphome/components/sx127x/* @swoboda1337
-esphome/components/sy6970/* @linkedupbits
 esphome/components/syslog/* @clydebarrow
 esphome/components/t6615/* @tylermenezes
 esphome/components/tc74/* @sethgirvan

esphome/components/esp32_hosted/__init__.py

@@ -12,7 +12,6 @@ from esphome.const import (
     KEY_FRAMEWORK_VERSION,
 )
 from esphome.core import CORE
-from esphome.cpp_generator import add_define
 
 CODEOWNERS = ["@swoboda1337"]
 
@@ -43,7 +42,6 @@ CONFIG_SCHEMA = cv.All(
 
 
 async def to_code(config):
-    add_define("USE_ESP32_HOSTED")
     if config[CONF_ACTIVE_HIGH]:
         esp32.add_idf_sdkconfig_option(
             "CONFIG_ESP_HOSTED_SDIO_RESET_ACTIVE_HIGH",

esphome/components/mhz19/mhz19.cpp

@@ -155,9 +155,6 @@ void MHZ19Component::dump_config() {
     case MHZ19_DETECTION_RANGE_0_10000PPM:
       range_str = "0 to 10000ppm";
       break;
-    default:
-      range_str = "default";
-      break;
   }
   ESP_LOGCONFIG(TAG, "  Detection range: %s", range_str);
 }

esphome/components/mqtt/mqtt_alarm_control_panel.cpp

@@ -1,6 +1,5 @@
 #include "mqtt_alarm_control_panel.h"
 #include "esphome/core/log.h"
-#include "esphome/core/progmem.h"
 
 #include "mqtt_const.h"
 
@@ -13,33 +12,6 @@ static const char *const TAG = "mqtt.alarm_control_panel";
 
 using namespace esphome::alarm_control_panel;
 
-static ProgmemStr alarm_state_to_mqtt_str(AlarmControlPanelState state) {
-  switch (state) {
-    case ACP_STATE_DISARMED:
-      return ESPHOME_F("disarmed");
-    case ACP_STATE_ARMED_HOME:
-      return ESPHOME_F("armed_home");
-    case ACP_STATE_ARMED_AWAY:
-      return ESPHOME_F("armed_away");
-    case ACP_STATE_ARMED_NIGHT:
-      return ESPHOME_F("armed_night");
-    case ACP_STATE_ARMED_VACATION:
-      return ESPHOME_F("armed_vacation");
-    case ACP_STATE_ARMED_CUSTOM_BYPASS:
-      return ESPHOME_F("armed_custom_bypass");
-    case ACP_STATE_PENDING:
-      return ESPHOME_F("pending");
-    case ACP_STATE_ARMING:
-      return ESPHOME_F("arming");
-    case ACP_STATE_DISARMING:
-      return ESPHOME_F("disarming");
-    case ACP_STATE_TRIGGERED:
-      return ESPHOME_F("triggered");
-    default:
-      return ESPHOME_F("unknown");
-  }
-}
-
 MQTTAlarmControlPanelComponent::MQTTAlarmControlPanelComponent(AlarmControlPanel *alarm_control_panel)
     : alarm_control_panel_(alarm_control_panel) {}
 void MQTTAlarmControlPanelComponent::setup() {
@@ -112,9 +84,42 @@ const EntityBase *MQTTAlarmControlPanelComponent::get_entity() const { return th
 
 bool MQTTAlarmControlPanelComponent::send_initial_state() { return this->publish_state(); }
 bool MQTTAlarmControlPanelComponent::publish_state() {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-  return this->publish(this->get_state_topic_to_(topic_buf),
-                       alarm_state_to_mqtt_str(this->alarm_control_panel_->get_state()));
+  const char *state_s;
+  switch (this->alarm_control_panel_->get_state()) {
+    case ACP_STATE_DISARMED:
+      state_s = "disarmed";
+      break;
+    case ACP_STATE_ARMED_HOME:
+      state_s = "armed_home";
+      break;
+    case ACP_STATE_ARMED_AWAY:
+      state_s = "armed_away";
+      break;
+    case ACP_STATE_ARMED_NIGHT:
+      state_s = "armed_night";
+      break;
+    case ACP_STATE_ARMED_VACATION:
+      state_s = "armed_vacation";
+      break;
+    case ACP_STATE_ARMED_CUSTOM_BYPASS:
+      state_s = "armed_custom_bypass";
+      break;
+    case ACP_STATE_PENDING:
+      state_s = "pending";
+      break;
+    case ACP_STATE_ARMING:
+      state_s = "arming";
+      break;
+    case ACP_STATE_DISARMING:
+      state_s = "disarming";
+      break;
+    case ACP_STATE_TRIGGERED:
+      state_s = "triggered";
+      break;
+    default:
+      state_s = "unknown";
+  }
+  return this->publish(this->get_state_topic_(), state_s);
 }
 
 }  // namespace esphome::mqtt

esphome/components/mqtt/mqtt_binary_sensor.cpp

@@ -52,9 +52,8 @@ bool MQTTBinarySensorComponent::publish_state(bool state) {
   if (this->binary_sensor_->is_status_binary_sensor())
     return true;
 
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
   const char *state_s = state ? "ON" : "OFF";
-  return this->publish(this->get_state_topic_to_(topic_buf), state_s);
+  return this->publish(this->get_state_topic_(), state_s);
 }
 
 }  // namespace esphome::mqtt

esphome/components/mqtt/mqtt_climate.cpp

@@ -1,6 +1,5 @@
 #include "mqtt_climate.h"
 #include "esphome/core/log.h"
-#include "esphome/core/progmem.h"
 
 #include "mqtt_const.h"
 
@@ -13,111 +12,6 @@ static const char *const TAG = "mqtt.climate";
 
 using namespace esphome::climate;
 
-static ProgmemStr climate_mode_to_mqtt_str(ClimateMode mode) {
-  switch (mode) {
-    case CLIMATE_MODE_OFF:
-      return ESPHOME_F("off");
-    case CLIMATE_MODE_HEAT_COOL:
-      return ESPHOME_F("heat_cool");
-    case CLIMATE_MODE_AUTO:
-      return ESPHOME_F("auto");
-    case CLIMATE_MODE_COOL:
-      return ESPHOME_F("cool");
-    case CLIMATE_MODE_HEAT:
-      return ESPHOME_F("heat");
-    case CLIMATE_MODE_FAN_ONLY:
-      return ESPHOME_F("fan_only");
-    case CLIMATE_MODE_DRY:
-      return ESPHOME_F("dry");
-    default:
-      return ESPHOME_F("unknown");
-  }
-}
-
-static ProgmemStr climate_action_to_mqtt_str(ClimateAction action) {
-  switch (action) {
-    case CLIMATE_ACTION_OFF:
-      return ESPHOME_F("off");
-    case CLIMATE_ACTION_COOLING:
-      return ESPHOME_F("cooling");
-    case CLIMATE_ACTION_HEATING:
-      return ESPHOME_F("heating");
-    case CLIMATE_ACTION_IDLE:
-      return ESPHOME_F("idle");
-    case CLIMATE_ACTION_DRYING:
-      return ESPHOME_F("drying");
-    case CLIMATE_ACTION_FAN:
-      return ESPHOME_F("fan");
-    default:
-      return ESPHOME_F("unknown");
-  }
-}
-
-static ProgmemStr climate_fan_mode_to_mqtt_str(ClimateFanMode fan_mode) {
-  switch (fan_mode) {
-    case CLIMATE_FAN_ON:
-      return ESPHOME_F("on");
-    case CLIMATE_FAN_OFF:
-      return ESPHOME_F("off");
-    case CLIMATE_FAN_AUTO:
-      return ESPHOME_F("auto");
-    case CLIMATE_FAN_LOW:
-      return ESPHOME_F("low");
-    case CLIMATE_FAN_MEDIUM:
-      return ESPHOME_F("medium");
-    case CLIMATE_FAN_HIGH:
-      return ESPHOME_F("high");
-    case CLIMATE_FAN_MIDDLE:
-      return ESPHOME_F("middle");
-    case CLIMATE_FAN_FOCUS:
-      return ESPHOME_F("focus");
-    case CLIMATE_FAN_DIFFUSE:
-      return ESPHOME_F("diffuse");
-    case CLIMATE_FAN_QUIET:
-      return ESPHOME_F("quiet");
-    default:
-      return ESPHOME_F("unknown");
-  }
-}
-
-static ProgmemStr climate_swing_mode_to_mqtt_str(ClimateSwingMode swing_mode) {
-  switch (swing_mode) {
-    case CLIMATE_SWING_OFF:
-      return ESPHOME_F("off");
-    case CLIMATE_SWING_BOTH:
-      return ESPHOME_F("both");
-    case CLIMATE_SWING_VERTICAL:
-      return ESPHOME_F("vertical");
-    case CLIMATE_SWING_HORIZONTAL:
-      return ESPHOME_F("horizontal");
-    default:
-      return ESPHOME_F("unknown");
-  }
-}
-
-static ProgmemStr climate_preset_to_mqtt_str(ClimatePreset preset) {
-  switch (preset) {
-    case CLIMATE_PRESET_NONE:
-      return ESPHOME_F("none");
-    case CLIMATE_PRESET_HOME:
-      return ESPHOME_F("home");
-    case CLIMATE_PRESET_ECO:
-      return ESPHOME_F("eco");
-    case CLIMATE_PRESET_AWAY:
-      return ESPHOME_F("away");
-    case CLIMATE_PRESET_BOOST:
-      return ESPHOME_F("boost");
-    case CLIMATE_PRESET_COMFORT:
-      return ESPHOME_F("comfort");
-    case CLIMATE_PRESET_SLEEP:
-      return ESPHOME_F("sleep");
-    case CLIMATE_PRESET_ACTIVITY:
-      return ESPHOME_F("activity");
-    default:
-      return ESPHOME_F("unknown");
-  }
-}
-
 void MQTTClimateComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryConfig &config) {
   // NOLINTBEGIN(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
   auto traits = this->device_->get_traits();
@@ -366,8 +260,34 @@ const EntityBase *MQTTClimateComponent::get_entity() const { return this->device
 bool MQTTClimateComponent::publish_state_() {
   auto traits = this->device_->get_traits();
   // mode
+  const char *mode_s;
+  switch (this->device_->mode) {
+    case CLIMATE_MODE_OFF:
+      mode_s = "off";
+      break;
+    case CLIMATE_MODE_AUTO:
+      mode_s = "auto";
+      break;
+    case CLIMATE_MODE_COOL:
+      mode_s = "cool";
+      break;
+    case CLIMATE_MODE_HEAT:
+      mode_s = "heat";
+      break;
+    case CLIMATE_MODE_FAN_ONLY:
+      mode_s = "fan_only";
+      break;
+    case CLIMATE_MODE_DRY:
+      mode_s = "dry";
+      break;
+    case CLIMATE_MODE_HEAT_COOL:
+      mode_s = "heat_cool";
+      break;
+    default:
+      mode_s = "unknown";
+  }
   bool success = true;
-  if (!this->publish(this->get_mode_state_topic(), climate_mode_to_mqtt_str(this->device_->mode)))
+  if (!this->publish(this->get_mode_state_topic(), mode_s))
     success = false;
   int8_t target_accuracy = traits.get_target_temperature_accuracy_decimals();
   int8_t current_accuracy = traits.get_current_temperature_accuracy_decimals();
@@ -407,37 +327,134 @@ bool MQTTClimateComponent::publish_state_() {
   }
 
   if (traits.get_supports_presets() || !traits.get_supported_custom_presets().empty()) {
-    if (this->device_->has_custom_preset()) {
-      if (!this->publish(this->get_preset_state_topic(), this->device_->get_custom_preset()))
-        success = false;
-    } else if (this->device_->preset.has_value()) {
-      if (!this->publish(this->get_preset_state_topic(), climate_preset_to_mqtt_str(this->device_->preset.value())))
-        success = false;
-    } else if (!this->publish(this->get_preset_state_topic(), "")) {
-      success = false;
+    std::string payload;
+    if (this->device_->preset.has_value()) {
+      switch (this->device_->preset.value()) {
+        case CLIMATE_PRESET_NONE:
+          payload = "none";
+          break;
+        case CLIMATE_PRESET_HOME:
+          payload = "home";
+          break;
+        case CLIMATE_PRESET_AWAY:
+          payload = "away";
+          break;
+        case CLIMATE_PRESET_BOOST:
+          payload = "boost";
+          break;
+        case CLIMATE_PRESET_COMFORT:
+          payload = "comfort";
+          break;
+        case CLIMATE_PRESET_ECO:
+          payload = "eco";
+          break;
+        case CLIMATE_PRESET_SLEEP:
+          payload = "sleep";
+          break;
+        case CLIMATE_PRESET_ACTIVITY:
+          payload = "activity";
+          break;
+        default:
+          payload = "unknown";
+      }
     }
+    if (this->device_->has_custom_preset())
+      payload = this->device_->get_custom_preset().c_str();
+    if (!this->publish(this->get_preset_state_topic(), payload))
+      success = false;
   }
 
   if (traits.has_feature_flags(climate::CLIMATE_SUPPORTS_ACTION)) {
-    if (!this->publish(this->get_action_state_topic(), climate_action_to_mqtt_str(this->device_->action)))
+    const char *payload;
+    switch (this->device_->action) {
+      case CLIMATE_ACTION_OFF:
+        payload = "off";
+        break;
+      case CLIMATE_ACTION_COOLING:
+        payload = "cooling";
+        break;
+      case CLIMATE_ACTION_HEATING:
+        payload = "heating";
+        break;
+      case CLIMATE_ACTION_IDLE:
+        payload = "idle";
+        break;
+      case CLIMATE_ACTION_DRYING:
+        payload = "drying";
+        break;
+      case CLIMATE_ACTION_FAN:
+        payload = "fan";
+        break;
+      default:
+        payload = "unknown";
+    }
+    if (!this->publish(this->get_action_state_topic(), payload))
       success = false;
   }
 
   if (traits.get_supports_fan_modes()) {
-    if (this->device_->has_custom_fan_mode()) {
-      if (!this->publish(this->get_fan_mode_state_topic(), this->device_->get_custom_fan_mode()))
-        success = false;
-    } else if (this->device_->fan_mode.has_value()) {
-      if (!this->publish(this->get_fan_mode_state_topic(),
-                         climate_fan_mode_to_mqtt_str(this->device_->fan_mode.value())))
-        success = false;
-    } else if (!this->publish(this->get_fan_mode_state_topic(), "")) {
-      success = false;
+    std::string payload;
+    if (this->device_->fan_mode.has_value()) {
+      switch (this->device_->fan_mode.value()) {
+        case CLIMATE_FAN_ON:
+          payload = "on";
+          break;
+        case CLIMATE_FAN_OFF:
+          payload = "off";
+          break;
+        case CLIMATE_FAN_AUTO:
+          payload = "auto";
+          break;
+        case CLIMATE_FAN_LOW:
+          payload = "low";
+          break;
+        case CLIMATE_FAN_MEDIUM:
+          payload = "medium";
+          break;
+        case CLIMATE_FAN_HIGH:
+          payload = "high";
+          break;
+        case CLIMATE_FAN_MIDDLE:
+          payload = "middle";
+          break;
+        case CLIMATE_FAN_FOCUS:
+          payload = "focus";
+          break;
+        case CLIMATE_FAN_DIFFUSE:
+          payload = "diffuse";
+          break;
+        case CLIMATE_FAN_QUIET:
+          payload = "quiet";
+          break;
+        default:
+          payload = "unknown";
+      }
     }
+    if (this->device_->has_custom_fan_mode())
+      payload = this->device_->get_custom_fan_mode().c_str();
+    if (!this->publish(this->get_fan_mode_state_topic(), payload))
+      success = false;
   }
 
   if (traits.get_supports_swing_modes()) {
-    if (!this->publish(this->get_swing_mode_state_topic(), climate_swing_mode_to_mqtt_str(this->device_->swing_mode)))
+    const char *payload;
+    switch (this->device_->swing_mode) {
+      case CLIMATE_SWING_OFF:
+        payload = "off";
+        break;
+      case CLIMATE_SWING_BOTH:
+        payload = "both";
+        break;
+      case CLIMATE_SWING_VERTICAL:
+        payload = "vertical";
+        break;
+      case CLIMATE_SWING_HORIZONTAL:
+        payload = "horizontal";
+        break;
+      default:
+        payload = "unknown";
+    }
+    if (!this->publish(this->get_swing_mode_state_topic(), payload))
       success = false;
   }
 

esphome/components/mqtt/mqtt_component.cpp

@@ -5,7 +5,6 @@
 #include "esphome/core/application.h"
 #include "esphome/core/helpers.h"
 #include "esphome/core/log.h"
-#include "esphome/core/progmem.h"
 #include "esphome/core/version.h"
 
 #include "mqtt_const.h"
@@ -133,45 +132,17 @@ std::string MQTTComponent::get_command_topic_() const {
 }
 
 bool MQTTComponent::publish(const std::string &topic, const std::string &payload) {
-  return this->publish(topic.c_str(), payload.data(), payload.size());
+  return this->publish(topic, payload.data(), payload.size());
 }
 
 bool MQTTComponent::publish(const std::string &topic, const char *payload, size_t payload_length) {
-  return this->publish(topic.c_str(), payload, payload_length);
-}
-
-bool MQTTComponent::publish(const char *topic, const char *payload, size_t payload_length) {
-  if (topic[0] == '\0')
+  if (topic.empty())
     return false;
   return global_mqtt_client->publish(topic, payload, payload_length, this->qos_, this->retain_);
 }
 
-bool MQTTComponent::publish(const char *topic, const char *payload) {
-  return this->publish(topic, payload, strlen(payload));
-}
-
-#ifdef USE_ESP8266
-bool MQTTComponent::publish(const std::string &topic, ProgmemStr payload) {
-  return this->publish(topic.c_str(), payload);
-}
-
-bool MQTTComponent::publish(const char *topic, ProgmemStr payload) {
-  if (topic[0] == '\0')
-    return false;
-  // On ESP8266, ProgmemStr is __FlashStringHelper* - need to copy from flash
-  char buf[64];
-  strncpy_P(buf, reinterpret_cast<const char *>(payload), sizeof(buf) - 1);
-  buf[sizeof(buf) - 1] = '\0';
-  return global_mqtt_client->publish(topic, buf, strlen(buf), this->qos_, this->retain_);
-}
-#endif
-
 bool MQTTComponent::publish_json(const std::string &topic, const json::json_build_t &f) {
-  return this->publish_json(topic.c_str(), f);
-}
-
-bool MQTTComponent::publish_json(const char *topic, const json::json_build_t &f) {
-  if (topic[0] == '\0')
+  if (topic.empty())
     return false;
   return global_mqtt_client->publish_json(topic, f, this->qos_, this->retain_);
 }

esphome/components/mqtt/mqtt_component.h

@@ -9,7 +9,6 @@
 #include "esphome/core/automation.h"
 #include "esphome/core/component.h"
 #include "esphome/core/entity_base.h"
-#include "esphome/core/progmem.h"
 #include "esphome/core/string_ref.h"
 #include "mqtt_client.h"
 
@@ -158,70 +157,6 @@ class MQTTComponent : public Component {
    */
   bool publish(const std::string &topic, const char *payload, size_t payload_length);
 
-  /** Send a MQTT message.
-   *
-   * @param topic The topic.
-   * @param payload The null-terminated payload.
-   */
-  bool publish(const std::string &topic, const char *payload) {
-    return this->publish(topic.c_str(), payload, strlen(payload));
-  }
-
-  /** Send a MQTT message (no heap allocation for topic).
-   *
-   * @param topic The topic as C string.
-   * @param payload The payload buffer.
-   * @param payload_length The length of the payload.
-   */
-  bool publish(const char *topic, const char *payload, size_t payload_length);
-
-  /** Send a MQTT message (no heap allocation for topic).
-   *
-   * @param topic The topic as StringRef (for use with get_state_topic_to_()).
-   * @param payload The payload buffer.
-   * @param payload_length The length of the payload.
-   */
-  bool publish(StringRef topic, const char *payload, size_t payload_length) {
-    return this->publish(topic.c_str(), payload, payload_length);
-  }
-
-  /** Send a MQTT message (no heap allocation for topic).
-   *
-   * @param topic The topic as C string.
-   * @param payload The null-terminated payload.
-   */
-  bool publish(const char *topic, const char *payload);
-
-  /** Send a MQTT message (no heap allocation for topic).
-   *
-   * @param topic The topic as StringRef (for use with get_state_topic_to_()).
-   * @param payload The null-terminated payload.
-   */
-  bool publish(StringRef topic, const char *payload) { return this->publish(topic.c_str(), payload); }
-
-#ifdef USE_ESP8266
-  /** Send a MQTT message with a PROGMEM string payload.
-   *
-   * @param topic The topic.
-   * @param payload The payload (ProgmemStr - stored in flash on ESP8266).
-   */
-  bool publish(const std::string &topic, ProgmemStr payload);
-
-  /** Send a MQTT message with a PROGMEM string payload (no heap allocation for topic).
-   *
-   * @param topic The topic as C string.
-   * @param payload The payload (ProgmemStr - stored in flash on ESP8266).
-   */
-  bool publish(const char *topic, ProgmemStr payload);
-
-  /** Send a MQTT message with a PROGMEM string payload (no heap allocation for topic).
-   *
-   * @param topic The topic as StringRef (for use with get_state_topic_to_()).
-   * @param payload The payload (ProgmemStr - stored in flash on ESP8266).
-   */
-  bool publish(StringRef topic, ProgmemStr payload) { return this->publish(topic.c_str(), payload); }
-#endif
-
   /** Construct and send a JSON MQTT message.
    *
    * @param topic The topic.
@@ -229,20 +164,6 @@ class MQTTComponent : public Component {
    */
   bool publish_json(const std::string &topic, const json::json_build_t &f);
 
-  /** Construct and send a JSON MQTT message (no heap allocation for topic).
-   *
-   * @param topic The topic as C string.
-   * @param f The Json Message builder.
-   */
-  bool publish_json(const char *topic, const json::json_build_t &f);
-
-  /** Construct and send a JSON MQTT message (no heap allocation for topic).
-   *
-   * @param topic The topic as StringRef (for use with get_state_topic_to_()).
-   * @param f The Json Message builder.
-   */
-  bool publish_json(StringRef topic, const json::json_build_t &f) { return this->publish_json(topic.c_str(), f); }
-
   /** Subscribe to a MQTT topic.
    *
    * @param topic The topic. Wildcards are currently not supported.

esphome/components/mqtt/mqtt_cover.cpp

@@ -1,6 +1,5 @@
 #include "mqtt_cover.h"
 #include "esphome/core/log.h"
-#include "esphome/core/progmem.h"
 
 #include "mqtt_const.h"
 
@@ -13,20 +12,6 @@ static const char *const TAG = "mqtt.cover";
 
 using namespace esphome::cover;
 
-static ProgmemStr cover_state_to_mqtt_str(CoverOperation operation, float position, bool supports_position) {
-  if (operation == COVER_OPERATION_OPENING)
-    return ESPHOME_F("opening");
-  if (operation == COVER_OPERATION_CLOSING)
-    return ESPHOME_F("closing");
-  if (position == COVER_CLOSED)
-    return ESPHOME_F("closed");
-  if (position == COVER_OPEN)
-    return ESPHOME_F("open");
-  if (supports_position)
-    return ESPHOME_F("open");
-  return ESPHOME_F("unknown");
-}
-
 MQTTCoverComponent::MQTTCoverComponent(Cover *cover) : cover_(cover) {}
 void MQTTCoverComponent::setup() {
   auto traits = this->cover_->get_traits();
@@ -124,10 +109,13 @@ bool MQTTCoverComponent::publish_state() {
     if (!this->publish(this->get_tilt_state_topic(), pos, len))
       success = false;
   }
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-  if (!this->publish(this->get_state_topic_to_(topic_buf),
-                     cover_state_to_mqtt_str(this->cover_->current_operation, this->cover_->position,
-                                             traits.get_supports_position())))
+  const char *state_s = this->cover_->current_operation == COVER_OPERATION_OPENING   ? "opening"
+                        : this->cover_->current_operation == COVER_OPERATION_CLOSING ? "closing"
+                        : this->cover_->position == COVER_CLOSED                     ? "closed"
+                        : this->cover_->position == COVER_OPEN                       ? "open"
+                        : traits.get_supports_position()                             ? "open"
+                                                                                     : "unknown";
+  if (!this->publish(this->get_state_topic_(), state_s))
     success = false;
   return success;
 }

esphome/components/mqtt/mqtt_date.cpp

@@ -53,8 +53,7 @@ bool MQTTDateComponent::send_initial_state() {
   }
 }
 bool MQTTDateComponent::publish_state(uint16_t year, uint8_t month, uint8_t day) {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-  return this->publish_json(this->get_state_topic_to_(topic_buf), [year, month, day](JsonObject root) {
+  return this->publish_json(this->get_state_topic_(), [year, month, day](JsonObject root) {
     // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
     root[ESPHOME_F("year")] = year;
     root[ESPHOME_F("month")] = month;

esphome/components/mqtt/mqtt_datetime.cpp

@@ -66,17 +66,15 @@ bool MQTTDateTimeComponent::send_initial_state() {
 }
 bool MQTTDateTimeComponent::publish_state(uint16_t year, uint8_t month, uint8_t day, uint8_t hour, uint8_t minute,
                                           uint8_t second) {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-  return this->publish_json(this->get_state_topic_to_(topic_buf),
-                            [year, month, day, hour, minute, second](JsonObject root) {
-                              // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
-                              root[ESPHOME_F("year")] = year;
-                              root[ESPHOME_F("month")] = month;
-                              root[ESPHOME_F("day")] = day;
-                              root[ESPHOME_F("hour")] = hour;
-                              root[ESPHOME_F("minute")] = minute;
-                              root[ESPHOME_F("second")] = second;
-                            });
+  return this->publish_json(this->get_state_topic_(), [year, month, day, hour, minute, second](JsonObject root) {
+    // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
+    root[ESPHOME_F("year")] = year;
+    root[ESPHOME_F("month")] = month;
+    root[ESPHOME_F("day")] = day;
+    root[ESPHOME_F("hour")] = hour;
+    root[ESPHOME_F("minute")] = minute;
+    root[ESPHOME_F("second")] = second;
+  });
 }
 
 }  // namespace esphome::mqtt

esphome/components/mqtt/mqtt_event.cpp

@@ -44,8 +44,7 @@ void MQTTEventComponent::dump_config() {
 }
 
 bool MQTTEventComponent::publish_event_(const std::string &event_type) {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-  return this->publish_json(this->get_state_topic_to_(topic_buf), [event_type](JsonObject root) {
+  return this->publish_json(this->get_state_topic_(), [event_type](JsonObject root) {
     // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
     root[MQTT_EVENT_TYPE] = event_type;
   });

esphome/components/mqtt/mqtt_fan.cpp

@@ -1,6 +1,5 @@
 #include "mqtt_fan.h"
 #include "esphome/core/log.h"
-#include "esphome/core/progmem.h"
 
 #include "mqtt_const.h"
 
@@ -13,14 +12,6 @@ static const char *const TAG = "mqtt.fan";
 
 using namespace esphome::fan;
 
-static ProgmemStr fan_direction_to_mqtt_str(FanDirection direction) {
-  return direction == FanDirection::FORWARD ? ESPHOME_F("forward") : ESPHOME_F("reverse");
-}
-
-static ProgmemStr fan_oscillation_to_mqtt_str(bool oscillating) {
-  return oscillating ? ESPHOME_F("oscillate_on") : ESPHOME_F("oscillate_off");
-}
-
 MQTTFanComponent::MQTTFanComponent(Fan *state) : state_(state) {}
 
 Fan *MQTTFanComponent::get_state() const { return this->state_; }
@@ -167,18 +158,18 @@ void MQTTFanComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryConfig
   }
 }
 bool MQTTFanComponent::publish_state() {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
   const char *state_s = this->state_->state ? "ON" : "OFF";
   ESP_LOGD(TAG, "'%s' Sending state %s.", this->state_->get_name().c_str(), state_s);
-  this->publish(this->get_state_topic_to_(topic_buf), state_s);
+  this->publish(this->get_state_topic_(), state_s);
   bool failed = false;
   if (this->state_->get_traits().supports_direction()) {
-    bool success = this->publish(this->get_direction_state_topic(), fan_direction_to_mqtt_str(this->state_->direction));
+    bool success = this->publish(this->get_direction_state_topic(),
+                                 this->state_->direction == fan::FanDirection::FORWARD ? "forward" : "reverse");
     failed = failed || !success;
   }
   if (this->state_->get_traits().supports_oscillation()) {
-    bool success =
-        this->publish(this->get_oscillation_state_topic(), fan_oscillation_to_mqtt_str(this->state_->oscillating));
+    bool success = this->publish(this->get_oscillation_state_topic(),
+                                 this->state_->oscillating ? "oscillate_on" : "oscillate_off");
     failed = failed || !success;
   }
   auto traits = this->state_->get_traits();

esphome/components/mqtt/mqtt_light.cpp

@@ -34,8 +34,7 @@ void MQTTJSONLightComponent::on_light_remote_values_update() {
 MQTTJSONLightComponent::MQTTJSONLightComponent(LightState *state) : state_(state) {}
 
 bool MQTTJSONLightComponent::publish_state_() {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-  return this->publish_json(this->get_state_topic_to_(topic_buf), [this](JsonObject root) {
+  return this->publish_json(this->get_state_topic_(), [this](JsonObject root) {
     // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
     LightJSONSchema::dump_json(*this->state_, root);
   });

esphome/components/mqtt/mqtt_lock.cpp

@@ -47,14 +47,13 @@ void MQTTLockComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryConfi
 bool MQTTLockComponent::send_initial_state() { return this->publish_state(); }
 
 bool MQTTLockComponent::publish_state() {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
 #ifdef USE_STORE_LOG_STR_IN_FLASH
   char buf[LOCK_STATE_STR_SIZE];
   strncpy_P(buf, (PGM_P) lock_state_to_string(this->lock_->state), sizeof(buf) - 1);
   buf[sizeof(buf) - 1] = '\0';
-  return this->publish(this->get_state_topic_to_(topic_buf), buf);
+  return this->publish(this->get_state_topic_(), buf);
 #else
-  return this->publish(this->get_state_topic_to_(topic_buf), LOG_STR_ARG(lock_state_to_string(this->lock_->state)));
+  return this->publish(this->get_state_topic_(), LOG_STR_ARG(lock_state_to_string(this->lock_->state)));
 #endif
 }
 

esphome/components/mqtt/mqtt_number.cpp

@@ -74,10 +74,9 @@ bool MQTTNumberComponent::send_initial_state() {
   }
 }
 bool MQTTNumberComponent::publish_state(float value) {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
   char buffer[64];
-  size_t len = buf_append_printf(buffer, sizeof(buffer), 0, "%f", value);
-  return this->publish(this->get_state_topic_to_(topic_buf), buffer, len);
+  buf_append_printf(buffer, sizeof(buffer), 0, "%f", value);
+  return this->publish(this->get_state_topic_(), buffer);
 }
 
 }  // namespace esphome::mqtt

esphome/components/mqtt/mqtt_select.cpp

@@ -50,8 +50,7 @@ bool MQTTSelectComponent::send_initial_state() {
   }
 }
 bool MQTTSelectComponent::publish_state(const std::string &value) {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-  return this->publish(this->get_state_topic_to_(topic_buf), value.data(), value.size());
+  return this->publish(this->get_state_topic_(), value);
 }
 
 }  // namespace esphome::mqtt

esphome/components/mqtt/mqtt_sensor.cpp

@@ -79,13 +79,12 @@ bool MQTTSensorComponent::send_initial_state() {
   }
 }
 bool MQTTSensorComponent::publish_state(float value) {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
   if (mqtt::global_mqtt_client->is_publish_nan_as_none() && std::isnan(value))
-    return this->publish(this->get_state_topic_to_(topic_buf), "None", 4);
+    return this->publish(this->get_state_topic_(), "None", 4);
   int8_t accuracy = this->sensor_->get_accuracy_decimals();
   char buf[VALUE_ACCURACY_MAX_LEN];
   size_t len = value_accuracy_to_buf(buf, value, accuracy);
-  return this->publish(this->get_state_topic_to_(topic_buf), buf, len);
+  return this->publish(this->get_state_topic_(), buf, len);
 }
 
 }  // namespace esphome::mqtt

esphome/components/mqtt/mqtt_switch.cpp

@@ -52,9 +52,8 @@ void MQTTSwitchComponent::send_discovery(JsonObject root, mqtt::SendDiscoveryCon
 bool MQTTSwitchComponent::send_initial_state() { return this->publish_state(this->switch_->state); }
 
 bool MQTTSwitchComponent::publish_state(bool state) {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
   const char *state_s = state ? "ON" : "OFF";
-  return this->publish(this->get_state_topic_to_(topic_buf), state_s);
+  return this->publish(this->get_state_topic_(), state_s);
 }
 
 }  // namespace esphome::mqtt

esphome/components/mqtt/mqtt_text.cpp

@@ -53,8 +53,7 @@ bool MQTTTextComponent::send_initial_state() {
   }
 }
 bool MQTTTextComponent::publish_state(const std::string &value) {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-  return this->publish(this->get_state_topic_to_(topic_buf), value.data(), value.size());
+  return this->publish(this->get_state_topic_(), value);
 }
 
 }  // namespace esphome::mqtt

esphome/components/mqtt/mqtt_text_sensor.cpp

@@ -31,10 +31,7 @@ void MQTTTextSensor::dump_config() {
   LOG_MQTT_COMPONENT(true, false);
 }
 
-bool MQTTTextSensor::publish_state(const std::string &value) {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-  return this->publish(this->get_state_topic_to_(topic_buf), value.data(), value.size());
-}
+bool MQTTTextSensor::publish_state(const std::string &value) { return this->publish(this->get_state_topic_(), value); }
 bool MQTTTextSensor::send_initial_state() {
   if (this->sensor_->has_state()) {
     return this->publish_state(this->sensor_->state);

esphome/components/mqtt/mqtt_time.cpp

@@ -53,8 +53,7 @@ bool MQTTTimeComponent::send_initial_state() {
   }
 }
 bool MQTTTimeComponent::publish_state(uint8_t hour, uint8_t minute, uint8_t second) {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-  return this->publish_json(this->get_state_topic_to_(topic_buf), [hour, minute, second](JsonObject root) {
+  return this->publish_json(this->get_state_topic_(), [hour, minute, second](JsonObject root) {
     // NOLINTNEXTLINE(clang-analyzer-cplusplus.NewDeleteLeaks) false positive with ArduinoJson
     root[ESPHOME_F("hour")] = hour;
     root[ESPHOME_F("minute")] = minute;

esphome/components/mqtt/mqtt_update.cpp

@@ -28,8 +28,7 @@ void MQTTUpdateComponent::setup() {
 }
 
 bool MQTTUpdateComponent::publish_state() {
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-  return this->publish_json(this->get_state_topic_to_(topic_buf), [this](JsonObject root) {
+  return this->publish_json(this->get_state_topic_(), [this](JsonObject root) {
     root[ESPHOME_F("installed_version")] = this->update_->update_info.current_version;
     root[ESPHOME_F("latest_version")] = this->update_->update_info.latest_version;
     root[ESPHOME_F("title")] = this->update_->update_info.title;

esphome/components/mqtt/mqtt_valve.cpp

@@ -1,6 +1,5 @@
 #include "mqtt_valve.h"
 #include "esphome/core/log.h"
-#include "esphome/core/progmem.h"
 
 #include "mqtt_const.h"
 
@@ -13,20 +12,6 @@ static const char *const TAG = "mqtt.valve";
 
 using namespace esphome::valve;
 
-static ProgmemStr valve_state_to_mqtt_str(ValveOperation operation, float position, bool supports_position) {
-  if (operation == VALVE_OPERATION_OPENING)
-    return ESPHOME_F("opening");
-  if (operation == VALVE_OPERATION_CLOSING)
-    return ESPHOME_F("closing");
-  if (position == VALVE_CLOSED)
-    return ESPHOME_F("closed");
-  if (position == VALVE_OPEN)
-    return ESPHOME_F("open");
-  if (supports_position)
-    return ESPHOME_F("open");
-  return ESPHOME_F("unknown");
-}
-
 MQTTValveComponent::MQTTValveComponent(Valve *valve) : valve_(valve) {}
 void MQTTValveComponent::setup() {
   auto traits = this->valve_->get_traits();
@@ -93,10 +78,13 @@ bool MQTTValveComponent::publish_state() {
     if (!this->publish(this->get_position_state_topic(), pos, len))
       success = false;
   }
-  char topic_buf[MQTT_DEFAULT_TOPIC_MAX_LEN];
-  if (!this->publish(this->get_state_topic_to_(topic_buf),
-                     valve_state_to_mqtt_str(this->valve_->current_operation, this->valve_->position,
-                                             traits.get_supports_position())))
+  const char *state_s = this->valve_->current_operation == VALVE_OPERATION_OPENING   ? "opening"
+                        : this->valve_->current_operation == VALVE_OPERATION_CLOSING ? "closing"
+                        : this->valve_->position == VALVE_CLOSED                     ? "closed"
+                        : this->valve_->position == VALVE_OPEN                       ? "open"
+                        : traits.get_supports_position()                             ? "open"
+                                                                                     : "unknown";
+  if (!this->publish(this->get_state_topic_(), state_s))
     success = false;
   return success;
 }

esphome/components/sen5x/sen5x.cpp

@@ -30,19 +30,6 @@ static const int8_t SEN5X_INDEX_SCALE_FACTOR = 10;                            //
 static const int8_t SEN5X_MIN_INDEX_VALUE = 1 * SEN5X_INDEX_SCALE_FACTOR;     // must be adjusted by the scale factor
 static const int16_t SEN5X_MAX_INDEX_VALUE = 500 * SEN5X_INDEX_SCALE_FACTOR;  // must be adjusted by the scale factor
 
-static const LogString *type_to_string(Sen5xType type) {
-  switch (type) {
-    case Sen5xType::SEN50:
-      return LOG_STR("SEN50");
-    case Sen5xType::SEN54:
-      return LOG_STR("SEN54");
-    case Sen5xType::SEN55:
-      return LOG_STR("SEN55");
-    default:
-      return LOG_STR("UNKNOWN");
-  }
-}
-
 static const LogString *rht_accel_mode_to_string(RhtAccelerationMode mode) {
   switch (mode) {
     case LOW_ACCELERATION:
@@ -56,15 +43,6 @@ static const LogString *rht_accel_mode_to_string(RhtAccelerationMode mode) {
   }
 }
 
-// This function performs an in-place conversion of the provided buffer
-// from uint16_t values to big endianness
-static inline const char *sensirion_convert_to_string_in_place(uint16_t *array, size_t length) {
-  for (size_t i = 0; i < length; i++) {
-    array[i] = convert_big_endian(array[i]);
-  }
-  return reinterpret_cast<const char *>(array);
-}
-
 void SEN5XComponent::setup() {
   // the sensor needs 1000 ms to enter the idle state
   this->set_timeout(1000, [this]() {
@@ -97,18 +75,18 @@ void SEN5XComponent::setup() {
       stop_measurement_delay = 200;
     }
     this->set_timeout(stop_measurement_delay, [this]() {
-      // note: serial number register is actually 32-bytes long but we grab only the first 16-bytes,
-      // this appears to be all that Sensirion uses for serial numbers, this could change
-      uint16_t raw_serial_number[8];
-      if (!this->get_register(SEN5X_CMD_GET_SERIAL_NUMBER, raw_serial_number, 8, 20)) {
+      uint16_t raw_serial_number[3];
+      if (!this->get_register(SEN5X_CMD_GET_SERIAL_NUMBER, raw_serial_number, 3, 20)) {
         ESP_LOGE(TAG, "Failed to read serial number");
         this->error_code_ = SERIAL_NUMBER_IDENTIFICATION_FAILED;
         this->mark_failed();
         return;
       }
-      const char *serial_number = sensirion_convert_to_string_in_place(raw_serial_number, 8);
-      snprintf(this->serial_number_, sizeof(this->serial_number_), "%s", serial_number);
-      ESP_LOGV(TAG, "Serial number %s", this->serial_number_);
+      this->serial_number_[0] = static_cast<bool>(uint16_t(raw_serial_number[0]) & 0xFF);
+      this->serial_number_[1] = static_cast<uint16_t>(raw_serial_number[0] & 0xFF);
+      this->serial_number_[2] = static_cast<uint16_t>(raw_serial_number[1] >> 8);
+      ESP_LOGV(TAG, "Serial number %02d.%02d.%02d", this->serial_number_[0], this->serial_number_[1],
+               this->serial_number_[2]);
 
       uint16_t raw_product_name[16];
       if (!this->get_register(SEN5X_CMD_GET_PRODUCT_NAME, raw_product_name, 16, 20)) {
@@ -117,35 +95,50 @@ void SEN5XComponent::setup() {
         this->mark_failed();
         return;
       }
-      const char *product_name = sensirion_convert_to_string_in_place(raw_product_name, 16);
-      if (strncmp(product_name, "SEN50", 5) == 0) {
-        this->type_ = Sen5xType::SEN50;
-      } else if (strncmp(product_name, "SEN54", 5) == 0) {
-        this->type_ = Sen5xType::SEN54;
-      } else if (strncmp(product_name, "SEN55", 5) == 0) {
-        this->type_ = Sen5xType::SEN55;
-      } else {
-        this->type_ = Sen5xType::UNKNOWN;
-        ESP_LOGE(TAG, "Unknown product name: %.32s", product_name);
-        this->error_code_ = PRODUCT_NAME_FAILED;
-        this->mark_failed();
-        return;
-      }
+      // 2 ASCII bytes are encoded in an int
+      const uint16_t *current_int = raw_product_name;
+      char current_char;
+      uint8_t max = 16;
+      do {
+        // first char
+        current_char = *current_int >> 8;
+        if (current_char) {
+          this->product_name_.push_back(current_char);
+          // second char
+          current_char = *current_int & 0xFF;
+          if (current_char) {
+            this->product_name_.push_back(current_char);
+          }
+        }
+        current_int++;
+      } while (current_char && --max);
 
-      ESP_LOGD(TAG, "Type: %s", LOG_STR_ARG(type_to_string(this->type_)));
-      if (this->humidity_sensor_ && this->type_ == Sen5xType::SEN50) {
+      Sen5xType sen5x_type = UNKNOWN;
+      if (this->product_name_ == "SEN50") {
+        sen5x_type = SEN50;
+      } else {
+        if (this->product_name_ == "SEN54") {
+          sen5x_type = SEN54;
+        } else {
+          if (this->product_name_ == "SEN55") {
+            sen5x_type = SEN55;
+          }
+        }
+      }
+      ESP_LOGD(TAG, "Product name: %s", this->product_name_.c_str());
+      if (this->humidity_sensor_ && sen5x_type == SEN50) {
         ESP_LOGE(TAG, "Relative humidity requires a SEN54 or SEN55");
         this->humidity_sensor_ = nullptr;  // mark as not used
       }
-      if (this->temperature_sensor_ && this->type_ == Sen5xType::SEN50) {
+      if (this->temperature_sensor_ && sen5x_type == SEN50) {
         ESP_LOGE(TAG, "Temperature requires a SEN54 or SEN55");
         this->temperature_sensor_ = nullptr;  // mark as not used
       }
-      if (this->voc_sensor_ && this->type_ == Sen5xType::SEN50) {
+      if (this->voc_sensor_ && sen5x_type == SEN50) {
         ESP_LOGE(TAG, "VOC requires a SEN54 or SEN55");
         this->voc_sensor_ = nullptr;  // mark as not used
       }
-      if (this->nox_sensor_ && this->type_ != Sen5xType::SEN55) {
+      if (this->nox_sensor_ && sen5x_type != SEN55) {
         ESP_LOGE(TAG, "NOx requires a SEN55");
         this->nox_sensor_ = nullptr;  // mark as not used
       }
@@ -160,8 +153,12 @@ void SEN5XComponent::setup() {
       ESP_LOGV(TAG, "Firmware version %d", this->firmware_version_);
 
       if (this->voc_sensor_ && this->store_baseline_) {
-        // Hash with serial number, serial numbers are unique, so multiple sensors can be used without conflict
-        uint32_t hash = fnv1a_hash(this->serial_number_);
+        uint32_t combined_serial =
+            encode_uint24(this->serial_number_[0], this->serial_number_[1], this->serial_number_[2]);
+        // Hash with config hash, version, and serial number
+        // This ensures the baseline storage is cleared after OTA
+        // Serial numbers are unique to each sensor, so multiple sensors can be used without conflict
+        uint32_t hash = fnv1a_hash_extend(App.get_config_version_hash(), combined_serial);
         this->pref_ = global_preferences->make_preference<uint16_t[4]>(hash, true);
         this->voc_baseline_time_ = App.get_loop_component_start_time();
         if (this->pref_.load(&this->voc_baseline_state_)) {
@@ -265,10 +262,11 @@ void SEN5XComponent::dump_config() {
     }
   }
   ESP_LOGCONFIG(TAG,
-                "  Type: %s\n"
+                "  Product name: %s\n"
                 "  Firmware version: %d\n"
-                "  Serial number: %s",
-                LOG_STR_ARG(type_to_string(this->type_)), this->firmware_version_, this->serial_number_);
+                "  Serial number %02d.%02d.%02d",
+                this->product_name_.c_str(), this->firmware_version_, this->serial_number_[0], this->serial_number_[1],
+                this->serial_number_[2]);
   if (this->auto_cleaning_interval_.has_value()) {
     ESP_LOGCONFIG(TAG, "  Auto cleaning interval: %" PRId32 "s", this->auto_cleaning_interval_.value());
   }

esphome/components/sen5x/sen5x.h

@@ -24,8 +24,6 @@ enum RhtAccelerationMode : uint16_t {
   HIGH_ACCELERATION = 2,
 };
 
-enum class Sen5xType : uint8_t { SEN50, SEN54, SEN55, UNKNOWN };
-
 struct GasTuning {
   uint16_t index_offset;
   uint16_t learning_time_offset_hours;
@@ -51,6 +49,8 @@ class SEN5XComponent : public PollingComponent, public sensirion_common::Sensiri
   void dump_config() override;
   void update() override;
 
+  enum Sen5xType { SEN50, SEN54, SEN55, UNKNOWN };
+
   void set_pm_1_0_sensor(sensor::Sensor *pm_1_0) { this->pm_1_0_sensor_ = pm_1_0; }
   void set_pm_2_5_sensor(sensor::Sensor *pm_2_5) { this->pm_2_5_sensor_ = pm_2_5; }
   void set_pm_4_0_sensor(sensor::Sensor *pm_4_0) { this->pm_4_0_sensor_ = pm_4_0; }
@@ -102,12 +102,11 @@ class SEN5XComponent : public PollingComponent, public sensirion_common::Sensiri
   bool write_tuning_parameters_(uint16_t i2c_command, const GasTuning &tuning);
   bool write_temperature_compensation_(const TemperatureCompensation &compensation);
 
-  char serial_number_[17] = "UNKNOWN";
   uint16_t voc_baseline_state_[4]{0};
   uint32_t voc_baseline_time_;
   uint16_t firmware_version_;
-  Sen5xType type_{Sen5xType::UNKNOWN};
   ERRORCODE error_code_;
+  uint8_t serial_number_[4];
   bool initialized_{false};
   bool store_baseline_;
 
@@ -128,6 +127,7 @@ class SEN5XComponent : public PollingComponent, public sensirion_common::Sensiri
   optional<GasTuning> nox_tuning_params_;
   optional<TemperatureCompensation> temperature_compensation_;
   ESPPreferenceObject pref_;
+  std::string product_name_;
 };
 
 }  // namespace sen5x

esphome/components/sml/constants.h

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <array>
 #include <cstdint>
 
 namespace esphome {
@@ -21,7 +22,7 @@ enum SmlMessageType : uint16_t { SML_PUBLIC_OPEN_RES = 0x0101, SML_GET_LIST_RES
 const uint16_t START_MASK = 0x55aa;  // 0x1b 1b 1b 1b 01 01 01 01
 const uint16_t END_MASK = 0x0157;    // 0x1b 1b 1b 1b 1a
 
-const std::vector<uint8_t> START_SEQ = {0x1b, 0x1b, 0x1b, 0x1b, 0x01, 0x01, 0x01, 0x01};
+constexpr std::array<uint8_t, 8> START_SEQ = {0x1b, 0x1b, 0x1b, 0x1b, 0x01, 0x01, 0x01, 0x01};
 
 }  // namespace sml
 }  // namespace esphome

esphome/components/sy6970/__init__.py

@@ -1,63 +0,0 @@
-import esphome.codegen as cg
-from esphome.components import i2c
-import esphome.config_validation as cv
-from esphome.const import CONF_ID
-
-CODEOWNERS = ["@linkedupbits"]
-DEPENDENCIES = ["i2c"]
-MULTI_CONF = True
-
-CONF_SY6970_ID = "sy6970_id"
-CONF_ENABLE_STATUS_LED = "enable_status_led"
-CONF_INPUT_CURRENT_LIMIT = "input_current_limit"
-CONF_CHARGE_VOLTAGE = "charge_voltage"
-CONF_CHARGE_CURRENT = "charge_current"
-CONF_PRECHARGE_CURRENT = "precharge_current"
-CONF_CHARGE_ENABLED = "charge_enabled"
-CONF_ENABLE_ADC = "enable_adc"
-
-sy6970_ns = cg.esphome_ns.namespace("sy6970")
-SY6970Component = sy6970_ns.class_(
-    "SY6970Component", cg.PollingComponent, i2c.I2CDevice
-)
-SY6970Listener = sy6970_ns.class_("SY6970Listener")
-
-CONFIG_SCHEMA = (
-    cv.Schema(
-        {
-            cv.GenerateID(): cv.declare_id(SY6970Component),
-            cv.Optional(CONF_ENABLE_STATUS_LED, default=True): cv.boolean,
-            cv.Optional(CONF_INPUT_CURRENT_LIMIT, default=500): cv.int_range(
-                min=100, max=3200
-            ),
-            cv.Optional(CONF_CHARGE_VOLTAGE, default=4208): cv.int_range(
-                min=3840, max=4608
-            ),
-            cv.Optional(CONF_CHARGE_CURRENT, default=2048): cv.int_range(
-                min=0, max=5056
-            ),
-            cv.Optional(CONF_PRECHARGE_CURRENT, default=128): cv.int_range(
-                min=64, max=1024
-            ),
-            cv.Optional(CONF_CHARGE_ENABLED, default=True): cv.boolean,
-            cv.Optional(CONF_ENABLE_ADC, default=True): cv.boolean,
-        }
-    )
-    .extend(cv.polling_component_schema("5s"))
-    .extend(i2c.i2c_device_schema(0x6A))
-)
-
-
-async def to_code(config):
-    var = cg.new_Pvariable(
-        config[CONF_ID],
-        config[CONF_ENABLE_STATUS_LED],
-        config[CONF_INPUT_CURRENT_LIMIT],
-        config[CONF_CHARGE_VOLTAGE],
-        config[CONF_CHARGE_CURRENT],
-        config[CONF_PRECHARGE_CURRENT],
-        config[CONF_CHARGE_ENABLED],
-        config[CONF_ENABLE_ADC],
-    )
-    await cg.register_component(var, config)
-    await i2c.register_i2c_device(var, config)

esphome/components/sy6970/binary_sensor/__init__.py

@@ -1,56 +0,0 @@
-import esphome.codegen as cg
-from esphome.components import binary_sensor
-import esphome.config_validation as cv
-from esphome.const import DEVICE_CLASS_CONNECTIVITY, DEVICE_CLASS_POWER
-
-from .. import CONF_SY6970_ID, SY6970Component, sy6970_ns
-
-DEPENDENCIES = ["sy6970"]
-
-CONF_VBUS_CONNECTED = "vbus_connected"
-CONF_CHARGING = "charging"
-CONF_CHARGE_DONE = "charge_done"
-
-SY6970VbusConnectedBinarySensor = sy6970_ns.class_(
-    "SY6970VbusConnectedBinarySensor", binary_sensor.BinarySensor
-)
-SY6970ChargingBinarySensor = sy6970_ns.class_(
-    "SY6970ChargingBinarySensor", binary_sensor.BinarySensor
-)
-SY6970ChargeDoneBinarySensor = sy6970_ns.class_(
-    "SY6970ChargeDoneBinarySensor", binary_sensor.BinarySensor
-)
-
-CONFIG_SCHEMA = cv.Schema(
-    {
-        cv.GenerateID(CONF_SY6970_ID): cv.use_id(SY6970Component),
-        cv.Optional(CONF_VBUS_CONNECTED): binary_sensor.binary_sensor_schema(
-            SY6970VbusConnectedBinarySensor,
-            device_class=DEVICE_CLASS_CONNECTIVITY,
-        ),
-        cv.Optional(CONF_CHARGING): binary_sensor.binary_sensor_schema(
-            SY6970ChargingBinarySensor,
-            device_class=DEVICE_CLASS_POWER,
-        ),
-        cv.Optional(CONF_CHARGE_DONE): binary_sensor.binary_sensor_schema(
-            SY6970ChargeDoneBinarySensor,
-            device_class=DEVICE_CLASS_POWER,
-        ),
-    }
-)
-
-
-async def to_code(config):
-    parent = await cg.get_variable(config[CONF_SY6970_ID])
-
-    if vbus_connected_config := config.get(CONF_VBUS_CONNECTED):
-        sens = await binary_sensor.new_binary_sensor(vbus_connected_config)
-        cg.add(parent.add_listener(sens))
-
-    if charging_config := config.get(CONF_CHARGING):
-        sens = await binary_sensor.new_binary_sensor(charging_config)
-        cg.add(parent.add_listener(sens))
-
-    if charge_done_config := config.get(CONF_CHARGE_DONE):
-        sens = await binary_sensor.new_binary_sensor(charge_done_config)
-        cg.add(parent.add_listener(sens))

esphome/components/sy6970/binary_sensor/sy6970_binary_sensor.h

@@ -1,43 +0,0 @@
-#pragma once
-
-#include "../sy6970.h"
-#include "esphome/components/binary_sensor/binary_sensor.h"
-
-namespace esphome::sy6970 {
-
-template<uint8_t REG, uint8_t SHIFT, uint8_t MASK, uint8_t TRUE_VALUE>
-class StatusBinarySensor : public SY6970Listener, public binary_sensor::BinarySensor {
- public:
-  void on_data(const SY6970Data &data) override {
-    uint8_t value = (data.registers[REG] >> SHIFT) & MASK;
-    this->publish_state(value == TRUE_VALUE);
-  }
-};
-
-template<uint8_t REG, uint8_t SHIFT, uint8_t MASK, uint8_t FALSE_VALUE>
-class InverseStatusBinarySensor : public SY6970Listener, public binary_sensor::BinarySensor {
- public:
-  void on_data(const SY6970Data &data) override {
-    uint8_t value = (data.registers[REG] >> SHIFT) & MASK;
-    this->publish_state(value != FALSE_VALUE);
-  }
-};
-
-// Custom binary sensor for charging (true when pre-charge or fast charge)
-class SY6970ChargingBinarySensor : public SY6970Listener, public binary_sensor::BinarySensor {
- public:
-  void on_data(const SY6970Data &data) override {
-    uint8_t chrg_stat = (data.registers[SY6970_REG_STATUS] >> 3) & 0x03;
-    bool charging = chrg_stat != CHARGE_STATUS_NOT_CHARGING && chrg_stat != CHARGE_STATUS_CHARGE_DONE;
-    this->publish_state(charging);
-  }
-};
-
-// Specialized sensor types using templates
-// VBUS connected: BUS_STATUS != NO_INPUT
-using SY6970VbusConnectedBinarySensor = InverseStatusBinarySensor<SY6970_REG_STATUS, 5, 0x07, BUS_STATUS_NO_INPUT>;
-
-// Charge done: CHARGE_STATUS == CHARGE_DONE
-using SY6970ChargeDoneBinarySensor = StatusBinarySensor<SY6970_REG_STATUS, 3, 0x03, CHARGE_STATUS_CHARGE_DONE>;
-
-}  // namespace esphome::sy6970

esphome/components/sy6970/sensor/__init__.py

@@ -1,95 +0,0 @@
-import esphome.codegen as cg
-from esphome.components import sensor
-import esphome.config_validation as cv
-from esphome.const import (
-    CONF_BATTERY_VOLTAGE,
-    DEVICE_CLASS_CURRENT,
-    DEVICE_CLASS_VOLTAGE,
-    STATE_CLASS_MEASUREMENT,
-    UNIT_MILLIAMP,
-    UNIT_VOLT,
-)
-
-from .. import CONF_SY6970_ID, SY6970Component, sy6970_ns
-
-DEPENDENCIES = ["sy6970"]
-
-CONF_VBUS_VOLTAGE = "vbus_voltage"
-CONF_SYSTEM_VOLTAGE = "system_voltage"
-CONF_CHARGE_CURRENT = "charge_current"
-CONF_PRECHARGE_CURRENT = "precharge_current"
-
-SY6970VbusVoltageSensor = sy6970_ns.class_("SY6970VbusVoltageSensor", sensor.Sensor)
-SY6970BatteryVoltageSensor = sy6970_ns.class_(
-    "SY6970BatteryVoltageSensor", sensor.Sensor
-)
-SY6970SystemVoltageSensor = sy6970_ns.class_("SY6970SystemVoltageSensor", sensor.Sensor)
-SY6970ChargeCurrentSensor = sy6970_ns.class_("SY6970ChargeCurrentSensor", sensor.Sensor)
-SY6970PrechargeCurrentSensor = sy6970_ns.class_(
-    "SY6970PrechargeCurrentSensor", sensor.Sensor
-)
-
-CONFIG_SCHEMA = cv.Schema(
-    {
-        cv.GenerateID(CONF_SY6970_ID): cv.use_id(SY6970Component),
-        cv.Optional(CONF_VBUS_VOLTAGE): sensor.sensor_schema(
-            SY6970VbusVoltageSensor,
-            unit_of_measurement=UNIT_VOLT,
-            accuracy_decimals=2,
-            device_class=DEVICE_CLASS_VOLTAGE,
-            state_class=STATE_CLASS_MEASUREMENT,
-        ),
-        cv.Optional(CONF_BATTERY_VOLTAGE): sensor.sensor_schema(
-            SY6970BatteryVoltageSensor,
-            unit_of_measurement=UNIT_VOLT,
-            accuracy_decimals=2,
-            device_class=DEVICE_CLASS_VOLTAGE,
-            state_class=STATE_CLASS_MEASUREMENT,
-        ),
-        cv.Optional(CONF_SYSTEM_VOLTAGE): sensor.sensor_schema(
-            SY6970SystemVoltageSensor,
-            unit_of_measurement=UNIT_VOLT,
-            accuracy_decimals=2,
-            device_class=DEVICE_CLASS_VOLTAGE,
-            state_class=STATE_CLASS_MEASUREMENT,
-        ),
-        cv.Optional(CONF_CHARGE_CURRENT): sensor.sensor_schema(
-            SY6970ChargeCurrentSensor,
-            unit_of_measurement=UNIT_MILLIAMP,
-            accuracy_decimals=0,
-            device_class=DEVICE_CLASS_CURRENT,
-            state_class=STATE_CLASS_MEASUREMENT,
-        ),
-        cv.Optional(CONF_PRECHARGE_CURRENT): sensor.sensor_schema(
-            SY6970PrechargeCurrentSensor,
-            unit_of_measurement=UNIT_MILLIAMP,
-            accuracy_decimals=0,
-            device_class=DEVICE_CLASS_CURRENT,
-            state_class=STATE_CLASS_MEASUREMENT,
-        ),
-    }
-)
-
-
-async def to_code(config):
-    parent = await cg.get_variable(config[CONF_SY6970_ID])
-
-    if vbus_voltage_config := config.get(CONF_VBUS_VOLTAGE):
-        sens = await sensor.new_sensor(vbus_voltage_config)
-        cg.add(parent.add_listener(sens))
-
-    if battery_voltage_config := config.get(CONF_BATTERY_VOLTAGE):
-        sens = await sensor.new_sensor(battery_voltage_config)
-        cg.add(parent.add_listener(sens))
-
-    if system_voltage_config := config.get(CONF_SYSTEM_VOLTAGE):
-        sens = await sensor.new_sensor(system_voltage_config)
-        cg.add(parent.add_listener(sens))
-
-    if charge_current_config := config.get(CONF_CHARGE_CURRENT):
-        sens = await sensor.new_sensor(charge_current_config)
-        cg.add(parent.add_listener(sens))
-
-    if precharge_current_config := config.get(CONF_PRECHARGE_CURRENT):
-        sens = await sensor.new_sensor(precharge_current_config)
-        cg.add(parent.add_listener(sens))

esphome/components/sy6970/sensor/sy6970_sensor.h

@@ -1,46 +0,0 @@
-#pragma once
-
-#include "../sy6970.h"
-#include "esphome/components/sensor/sensor.h"
-
-namespace esphome::sy6970 {
-
-// Template for voltage sensors (converts mV to V)
-template<uint8_t REG, uint8_t MASK, uint16_t BASE, uint16_t STEP>
-class VoltageSensor : public SY6970Listener, public sensor::Sensor {
- public:
-  void on_data(const SY6970Data &data) override {
-    uint8_t val = data.registers[REG] & MASK;
-    uint16_t voltage_mv = BASE + (val * STEP);
-    this->publish_state(voltage_mv * 0.001f);  // Convert mV to V
-  }
-};
-
-// Template for current sensors (returns mA)
-template<uint8_t REG, uint8_t MASK, uint16_t BASE, uint16_t STEP>
-class CurrentSensor : public SY6970Listener, public sensor::Sensor {
- public:
-  void on_data(const SY6970Data &data) override {
-    uint8_t val = data.registers[REG] & MASK;
-    uint16_t current_ma = BASE + (val * STEP);
-    this->publish_state(current_ma);
-  }
-};
-
-// Specialized sensor types using templates
-using SY6970VbusVoltageSensor = VoltageSensor<SY6970_REG_VBUS_VOLTAGE, 0x7F, VBUS_BASE_MV, VBUS_STEP_MV>;
-using SY6970BatteryVoltageSensor = VoltageSensor<SY6970_REG_BATV, 0x7F, VBAT_BASE_MV, VBAT_STEP_MV>;
-using SY6970SystemVoltageSensor = VoltageSensor<SY6970_REG_VINDPM_STATUS, 0x7F, VSYS_BASE_MV, VSYS_STEP_MV>;
-using SY6970ChargeCurrentSensor = CurrentSensor<SY6970_REG_CHARGE_CURRENT_MONITOR, 0x7F, 0, CHG_CURRENT_STEP_MA>;
-
-// Precharge current sensor needs special handling (bit shift)
-class SY6970PrechargeCurrentSensor : public SY6970Listener, public sensor::Sensor {
- public:
-  void on_data(const SY6970Data &data) override {
-    uint8_t iprechg = (data.registers[SY6970_REG_PRECHARGE_CURRENT] >> 4) & 0x0F;
-    uint16_t iprechg_ma = PRE_CHG_BASE_MA + (iprechg * PRE_CHG_STEP_MA);
-    this->publish_state(iprechg_ma);
-  }
-};
-
-}  // namespace esphome::sy6970

esphome/components/sy6970/sy6970.cpp

@@ -1,201 +0,0 @@
-#include "sy6970.h"
-#include "esphome/core/hal.h"
-#include "esphome/core/log.h"
-
-namespace esphome::sy6970 {
-
-static const char *const TAG = "sy6970";
-
-bool SY6970Component::read_all_registers_() {
-  // Read all registers from 0x00 to 0x14 in one transaction (21 bytes)
-  // This includes unused registers 0x0F, 0x10 for performance
-  if (!this->read_bytes(SY6970_REG_INPUT_CURRENT_LIMIT, this->data_.registers, 21)) {
-    ESP_LOGW(TAG, "Failed to read registers 0x00-0x14");
-    return false;
-  }
-
-  return true;
-}
-
-bool SY6970Component::write_register_(uint8_t reg, uint8_t value) {
-  if (!this->write_byte(reg, value)) {
-    ESP_LOGW(TAG, "Failed to write register 0x%02X", reg);
-    return false;
-  }
-  return true;
-}
-
-bool SY6970Component::update_register_(uint8_t reg, uint8_t mask, uint8_t value) {
-  uint8_t reg_value;
-  if (!this->read_byte(reg, &reg_value)) {
-    ESP_LOGW(TAG, "Failed to read register 0x%02X for update", reg);
-    return false;
-  }
-  reg_value = (reg_value & ~mask) | (value & mask);
-  return this->write_register_(reg, reg_value);
-}
-
-void SY6970Component::setup() {
-  ESP_LOGV(TAG, "Setting up SY6970...");
-
-  // Try to read chip ID
-  uint8_t reg_value;
-  if (!this->read_byte(SY6970_REG_DEVICE_ID, &reg_value)) {
-    ESP_LOGE(TAG, "Failed to communicate with SY6970");
-    this->mark_failed();
-    return;
-  }
-
-  uint8_t chip_id = reg_value & 0x03;
-  if (chip_id != 0x00) {
-    ESP_LOGW(TAG, "Unexpected chip ID: 0x%02X (expected 0x00)", chip_id);
-  }
-
-  // Apply configuration options (all have defaults now)
-  ESP_LOGV(TAG, "Setting LED enabled to %s", ONOFF(this->led_enabled_));
-  this->set_led_enabled(this->led_enabled_);
-
-  ESP_LOGV(TAG, "Setting input current limit to %u mA", this->input_current_limit_);
-  this->set_input_current_limit(this->input_current_limit_);
-
-  ESP_LOGV(TAG, "Setting charge voltage to %u mV", this->charge_voltage_);
-  this->set_charge_target_voltage(this->charge_voltage_);
-
-  ESP_LOGV(TAG, "Setting charge current to %u mA", this->charge_current_);
-  this->set_charge_current(this->charge_current_);
-
-  ESP_LOGV(TAG, "Setting precharge current to %u mA", this->precharge_current_);
-  this->set_precharge_current(this->precharge_current_);
-
-  ESP_LOGV(TAG, "Setting charge enabled to %s", ONOFF(this->charge_enabled_));
-  this->set_charge_enabled(this->charge_enabled_);
-
-  ESP_LOGV(TAG, "Setting ADC measurements to %s", ONOFF(this->enable_adc_));
-  this->set_enable_adc_measure(this->enable_adc_);
-
-  ESP_LOGV(TAG, "SY6970 initialized successfully");
-}
-
-void SY6970Component::dump_config() {
-  ESP_LOGCONFIG(TAG,
-                "SY6970:\n"
-                "  LED Enabled: %s\n"
-                "  Input Current Limit: %u mA\n"
-                "  Charge Voltage: %u mV\n"
-                "  Charge Current: %u mA\n"
-                "  Precharge Current: %u mA\n"
-                "  Charge Enabled: %s\n"
-                "  ADC Enabled: %s",
-                ONOFF(this->led_enabled_), this->input_current_limit_, this->charge_voltage_, this->charge_current_,
-                this->precharge_current_, ONOFF(this->charge_enabled_), ONOFF(this->enable_adc_));
-  LOG_I2C_DEVICE(this);
-  LOG_UPDATE_INTERVAL(this);
-  if (this->is_failed()) {
-    ESP_LOGE(TAG, "Communication with SY6970 failed!");
-  }
-}
-
-void SY6970Component::update() {
-  if (this->is_failed()) {
-    return;
-  }
-
-  // Read all registers in one transaction
-  if (!this->read_all_registers_()) {
-    ESP_LOGW(TAG, "Failed to read registers during update");
-    this->status_set_warning();
-    return;
-  }
-
-  this->status_clear_warning();
-
-  // Notify all listeners with the new data
-  for (auto *listener : this->listeners_) {
-    listener->on_data(this->data_);
-  }
-}
-
-void SY6970Component::set_input_current_limit(uint16_t milliamps) {
-  if (this->is_failed())
-    return;
-
-  if (milliamps < INPUT_CURRENT_MIN) {
-    milliamps = INPUT_CURRENT_MIN;
-  }
-
-  uint8_t val = (milliamps - INPUT_CURRENT_MIN) / INPUT_CURRENT_STEP;
-  if (val > 0x3F) {
-    val = 0x3F;
-  }
-
-  this->update_register_(SY6970_REG_INPUT_CURRENT_LIMIT, 0x3F, val);
-}
-
-void SY6970Component::set_charge_target_voltage(uint16_t millivolts) {
-  if (this->is_failed())
-    return;
-
-  if (millivolts < CHG_VOLTAGE_BASE) {
-    millivolts = CHG_VOLTAGE_BASE;
-  }
-
-  uint8_t val = (millivolts - CHG_VOLTAGE_BASE) / CHG_VOLTAGE_STEP;
-  if (val > 0x3F) {
-    val = 0x3F;
-  }
-
-  this->update_register_(SY6970_REG_CHARGE_VOLTAGE, 0xFC, val << 2);
-}
-
-void SY6970Component::set_precharge_current(uint16_t milliamps) {
-  if (this->is_failed())
-    return;
-
-  if (milliamps < PRE_CHG_BASE_MA) {
-    milliamps = PRE_CHG_BASE_MA;
-  }
-
-  uint8_t val = (milliamps - PRE_CHG_BASE_MA) / PRE_CHG_STEP_MA;
-  if (val > 0x0F) {
-    val = 0x0F;
-  }
-
-  this->update_register_(SY6970_REG_PRECHARGE_CURRENT, 0xF0, val << 4);
-}
-
-void SY6970Component::set_charge_current(uint16_t milliamps) {
-  if (this->is_failed())
-    return;
-
-  uint8_t val = milliamps / 64;
-  if (val > 0x7F) {
-    val = 0x7F;
-  }
-
-  this->update_register_(SY6970_REG_CHARGE_CURRENT, 0x7F, val);
-}
-
-void SY6970Component::set_charge_enabled(bool enabled) {
-  if (this->is_failed())
-    return;
-
-  this->update_register_(SY6970_REG_SYS_CONTROL, 0x10, enabled ? 0x10 : 0x00);
-}
-
-void SY6970Component::set_led_enabled(bool enabled) {
-  if (this->is_failed())
-    return;
-
-  // Bit 6: 0 = LED enabled, 1 = LED disabled
-  this->update_register_(SY6970_REG_TIMER_CONTROL, 0x40, enabled ? 0x00 : 0x40);
-}
-
-void SY6970Component::set_enable_adc_measure(bool enabled) {
-  if (this->is_failed())
-    return;
-
-  // Set bits to enable ADC conversion
-  this->update_register_(SY6970_REG_ADC_CONTROL, 0xC0, enabled ? 0xC0 : 0x00);
-}
-
-}  // namespace esphome::sy6970

esphome/components/sy6970/sy6970.h

@@ -1,122 +0,0 @@
-#pragma once
-
-#include "esphome/components/i2c/i2c.h"
-#include "esphome/core/component.h"
-#include <vector>
-
-namespace esphome::sy6970 {
-
-// SY6970 Register addresses with descriptive names
-static const uint8_t SY6970_REG_INPUT_CURRENT_LIMIT = 0x00;     // Input current limit control
-static const uint8_t SY6970_REG_VINDPM = 0x01;                  // Input voltage limit
-static const uint8_t SY6970_REG_ADC_CONTROL = 0x02;             // ADC control and function disable
-static const uint8_t SY6970_REG_SYS_CONTROL = 0x03;             // Charge enable and system config
-static const uint8_t SY6970_REG_CHARGE_CURRENT = 0x04;          // Fast charge current limit
-static const uint8_t SY6970_REG_PRECHARGE_CURRENT = 0x05;       // Pre-charge/termination current
-static const uint8_t SY6970_REG_CHARGE_VOLTAGE = 0x06;          // Charge voltage limit
-static const uint8_t SY6970_REG_TIMER_CONTROL = 0x07;           // Charge timer and status LED control
-static const uint8_t SY6970_REG_IR_COMP = 0x08;                 // IR compensation
-static const uint8_t SY6970_REG_FORCE_DPDM = 0x09;              // Force DPDM detection
-static const uint8_t SY6970_REG_BOOST_CONTROL = 0x0A;           // Boost mode voltage/current
-static const uint8_t SY6970_REG_STATUS = 0x0B;                  // System status (bus, charge status)
-static const uint8_t SY6970_REG_FAULT = 0x0C;                   // Fault status (NTC)
-static const uint8_t SY6970_REG_VINDPM_STATUS = 0x0D;           // Input voltage limit status (also sys voltage)
-static const uint8_t SY6970_REG_BATV = 0x0E;                    // Battery voltage
-static const uint8_t SY6970_REG_VBUS_VOLTAGE = 0x11;            // VBUS voltage
-static const uint8_t SY6970_REG_CHARGE_CURRENT_MONITOR = 0x12;  // Charge current
-static const uint8_t SY6970_REG_INPUT_VOLTAGE_LIMIT = 0x13;     // Input voltage limit
-static const uint8_t SY6970_REG_DEVICE_ID = 0x14;               // Part information
-
-// Constants for voltage and current calculations
-static const uint16_t VBUS_BASE_MV = 2600;       // mV
-static const uint16_t VBUS_STEP_MV = 100;        // mV
-static const uint16_t VBAT_BASE_MV = 2304;       // mV
-static const uint16_t VBAT_STEP_MV = 20;         // mV
-static const uint16_t VSYS_BASE_MV = 2304;       // mV
-static const uint16_t VSYS_STEP_MV = 20;         // mV
-static const uint16_t CHG_CURRENT_STEP_MA = 50;  // mA
-static const uint16_t PRE_CHG_BASE_MA = 64;      // mA
-static const uint16_t PRE_CHG_STEP_MA = 64;      // mA
-static const uint16_t CHG_VOLTAGE_BASE = 3840;   // mV
-static const uint16_t CHG_VOLTAGE_STEP = 16;     // mV
-static const uint16_t INPUT_CURRENT_MIN = 100;   // mA
-static const uint16_t INPUT_CURRENT_STEP = 50;   // mA
-
-// Bus Status values (REG_0B[7:5])
-enum BusStatus {
-  BUS_STATUS_NO_INPUT = 0,
-  BUS_STATUS_USB_SDP = 1,
-  BUS_STATUS_USB_CDP = 2,
-  BUS_STATUS_USB_DCP = 3,
-  BUS_STATUS_HVDCP = 4,
-  BUS_STATUS_ADAPTER = 5,
-  BUS_STATUS_NO_STD_ADAPTER = 6,
-  BUS_STATUS_OTG = 7,
-};
-
-// Charge Status values (REG_0B[4:3])
-enum ChargeStatus {
-  CHARGE_STATUS_NOT_CHARGING = 0,
-  CHARGE_STATUS_PRE_CHARGE = 1,
-  CHARGE_STATUS_FAST_CHARGE = 2,
-  CHARGE_STATUS_CHARGE_DONE = 3,
-};
-
-// Structure to hold all register data read in one transaction
-struct SY6970Data {
-  uint8_t registers[21];  // Registers 0x00-0x14 (includes unused 0x0F, 0x10)
-};
-
-// Listener interface for components that want to receive SY6970 data updates
-class SY6970Listener {
- public:
-  virtual void on_data(const SY6970Data &data) = 0;
-};
-
-class SY6970Component : public PollingComponent, public i2c::I2CDevice {
- public:
-  SY6970Component(bool led_enabled, uint16_t input_current_limit, uint16_t charge_voltage, uint16_t charge_current,
-                  uint16_t precharge_current, bool charge_enabled, bool enable_adc)
-      : led_enabled_(led_enabled),
-        input_current_limit_(input_current_limit),
-        charge_voltage_(charge_voltage),
-        charge_current_(charge_current),
-        precharge_current_(precharge_current),
-        charge_enabled_(charge_enabled),
-        enable_adc_(enable_adc) {}
-  void setup() override;
-  void dump_config() override;
-  void update() override;
-  float get_setup_priority() const override { return setup_priority::DATA; }
-
-  // Listener registration
-  void add_listener(SY6970Listener *listener) { this->listeners_.push_back(listener); }
-
-  // Configuration methods to be called from lambdas
-  void set_input_current_limit(uint16_t milliamps);
-  void set_charge_target_voltage(uint16_t millivolts);
-  void set_precharge_current(uint16_t milliamps);
-  void set_charge_current(uint16_t milliamps);
-  void set_charge_enabled(bool enabled);
-  void set_led_enabled(bool enabled);
-  void set_enable_adc_measure(bool enabled = true);
-
- protected:
-  bool read_all_registers_();
-  bool write_register_(uint8_t reg, uint8_t value);
-  bool update_register_(uint8_t reg, uint8_t mask, uint8_t value);
-
-  SY6970Data data_{};
-  std::vector<SY6970Listener *> listeners_;
-
-  // Configuration values to set during setup()
-  bool led_enabled_;
-  uint16_t input_current_limit_;
-  uint16_t charge_voltage_;
-  uint16_t charge_current_;
-  uint16_t precharge_current_;
-  bool charge_enabled_;
-  bool enable_adc_;
-};
-
-}  // namespace esphome::sy6970

esphome/components/sy6970/text_sensor/__init__.py

@@ -1,52 +0,0 @@
-import esphome.codegen as cg
-from esphome.components import text_sensor
-import esphome.config_validation as cv
-
-from .. import CONF_SY6970_ID, SY6970Component, sy6970_ns
-
-DEPENDENCIES = ["sy6970"]
-
-CONF_BUS_STATUS = "bus_status"
-CONF_CHARGE_STATUS = "charge_status"
-CONF_NTC_STATUS = "ntc_status"
-
-SY6970BusStatusTextSensor = sy6970_ns.class_(
-    "SY6970BusStatusTextSensor", text_sensor.TextSensor
-)
-SY6970ChargeStatusTextSensor = sy6970_ns.class_(
-    "SY6970ChargeStatusTextSensor", text_sensor.TextSensor
-)
-SY6970NtcStatusTextSensor = sy6970_ns.class_(
-    "SY6970NtcStatusTextSensor", text_sensor.TextSensor
-)
-
-CONFIG_SCHEMA = cv.Schema(
-    {
-        cv.GenerateID(CONF_SY6970_ID): cv.use_id(SY6970Component),
-        cv.Optional(CONF_BUS_STATUS): text_sensor.text_sensor_schema(
-            SY6970BusStatusTextSensor
-        ),
-        cv.Optional(CONF_CHARGE_STATUS): text_sensor.text_sensor_schema(
-            SY6970ChargeStatusTextSensor
-        ),
-        cv.Optional(CONF_NTC_STATUS): text_sensor.text_sensor_schema(
-            SY6970NtcStatusTextSensor
-        ),
-    }
-)
-
-
-async def to_code(config):
-    parent = await cg.get_variable(config[CONF_SY6970_ID])
-
-    if bus_status_config := config.get(CONF_BUS_STATUS):
-        sens = await text_sensor.new_text_sensor(bus_status_config)
-        cg.add(parent.add_listener(sens))
-
-    if charge_status_config := config.get(CONF_CHARGE_STATUS):
-        sens = await text_sensor.new_text_sensor(charge_status_config)
-        cg.add(parent.add_listener(sens))
-
-    if ntc_status_config := config.get(CONF_NTC_STATUS):
-        sens = await text_sensor.new_text_sensor(ntc_status_config)
-        cg.add(parent.add_listener(sens))

esphome/components/sy6970/text_sensor/sy6970_text_sensor.h

@@ -1,96 +0,0 @@
-#pragma once
-
-#include "../sy6970.h"
-#include "esphome/components/text_sensor/text_sensor.h"
-
-namespace esphome::sy6970 {
-
-// Bus status text sensor
-class SY6970BusStatusTextSensor : public SY6970Listener, public text_sensor::TextSensor {
- public:
-  void on_data(const SY6970Data &data) override {
-    uint8_t status = (data.registers[SY6970_REG_STATUS] >> 5) & 0x07;
-    const char *status_str = this->get_bus_status_string_(status);
-    this->publish_state(status_str);
-  }
-
- protected:
-  const char *get_bus_status_string_(uint8_t status) {
-    switch (status) {
-      case BUS_STATUS_NO_INPUT:
-        return "No Input";
-      case BUS_STATUS_USB_SDP:
-        return "USB SDP";
-      case BUS_STATUS_USB_CDP:
-        return "USB CDP";
-      case BUS_STATUS_USB_DCP:
-        return "USB DCP";
-      case BUS_STATUS_HVDCP:
-        return "HVDCP";
-      case BUS_STATUS_ADAPTER:
-        return "Adapter";
-      case BUS_STATUS_NO_STD_ADAPTER:
-        return "Non-Standard Adapter";
-      case BUS_STATUS_OTG:
-        return "OTG";
-      default:
-        return "Unknown";
-    }
-  }
-};
-
-// Charge status text sensor
-class SY6970ChargeStatusTextSensor : public SY6970Listener, public text_sensor::TextSensor {
- public:
-  void on_data(const SY6970Data &data) override {
-    uint8_t status = (data.registers[SY6970_REG_STATUS] >> 3) & 0x03;
-    const char *status_str = this->get_charge_status_string_(status);
-    this->publish_state(status_str);
-  }
-
- protected:
-  const char *get_charge_status_string_(uint8_t status) {
-    switch (status) {
-      case CHARGE_STATUS_NOT_CHARGING:
-        return "Not Charging";
-      case CHARGE_STATUS_PRE_CHARGE:
-        return "Pre-charge";
-      case CHARGE_STATUS_FAST_CHARGE:
-        return "Fast Charge";
-      case CHARGE_STATUS_CHARGE_DONE:
-        return "Charge Done";
-      default:
-        return "Unknown";
-    }
-  }
-};
-
-// NTC status text sensor
-class SY6970NtcStatusTextSensor : public SY6970Listener, public text_sensor::TextSensor {
- public:
-  void on_data(const SY6970Data &data) override {
-    uint8_t status = data.registers[SY6970_REG_FAULT] & 0x07;
-    const char *status_str = this->get_ntc_status_string_(status);
-    this->publish_state(status_str);
-  }
-
- protected:
-  const char *get_ntc_status_string_(uint8_t status) {
-    switch (status) {
-      case 0:
-        return "Normal";
-      case 2:
-        return "Warm";
-      case 3:
-        return "Cool";
-      case 5:
-        return "Cold";
-      case 6:
-        return "Hot";
-      default:
-        return "Unknown";
-    }
-  }
-};
-
-}  // namespace esphome::sy6970

esphome/components/template/water_heater/__init__.py

@@ -20,7 +20,7 @@ from .. import template_ns
 CONF_CURRENT_TEMPERATURE = "current_temperature"
 
 TemplateWaterHeater = template_ns.class_(
-    "TemplateWaterHeater", cg.Component, water_heater.WaterHeater
+    "TemplateWaterHeater", water_heater.WaterHeater
 )
 
 TemplateWaterHeaterPublishAction = template_ns.class_(
@@ -36,29 +36,24 @@ RESTORE_MODES = {
     "RESTORE_AND_CALL": TemplateWaterHeaterRestoreMode.WATER_HEATER_RESTORE_AND_CALL,
 }
 
-CONFIG_SCHEMA = (
-    water_heater.water_heater_schema(TemplateWaterHeater)
-    .extend(
-        {
-            cv.Optional(CONF_OPTIMISTIC, default=True): cv.boolean,
-            cv.Optional(CONF_SET_ACTION): automation.validate_automation(single=True),
-            cv.Optional(CONF_RESTORE_MODE, default="NO_RESTORE"): cv.enum(
-                RESTORE_MODES, upper=True
-            ),
-            cv.Optional(CONF_CURRENT_TEMPERATURE): cv.returning_lambda,
-            cv.Optional(CONF_MODE): cv.returning_lambda,
-            cv.Optional(CONF_SUPPORTED_MODES): cv.ensure_list(
-                water_heater.validate_water_heater_mode
-            ),
-        }
-    )
-    .extend(cv.COMPONENT_SCHEMA)
+CONFIG_SCHEMA = water_heater.water_heater_schema(TemplateWaterHeater).extend(
+    {
+        cv.Optional(CONF_OPTIMISTIC, default=True): cv.boolean,
+        cv.Optional(CONF_SET_ACTION): automation.validate_automation(single=True),
+        cv.Optional(CONF_RESTORE_MODE, default="NO_RESTORE"): cv.enum(
+            RESTORE_MODES, upper=True
+        ),
+        cv.Optional(CONF_CURRENT_TEMPERATURE): cv.returning_lambda,
+        cv.Optional(CONF_MODE): cv.returning_lambda,
+        cv.Optional(CONF_SUPPORTED_MODES): cv.ensure_list(
+            water_heater.validate_water_heater_mode
+        ),
+    }
 )
 
 
 async def to_code(config: ConfigType) -> None:
     var = cg.new_Pvariable(config[CONF_ID])
-    await cg.register_component(var, config)
     await water_heater.register_water_heater(var, config)
 
     cg.add(var.set_optimistic(config[CONF_OPTIMISTIC]))

esphome/components/template/water_heater/template_water_heater.cpp

@@ -10,7 +10,7 @@ TemplateWaterHeater::TemplateWaterHeater() : set_trigger_(new Trigger<>()) {}
 void TemplateWaterHeater::setup() {
   if (this->restore_mode_ == TemplateWaterHeaterRestoreMode::WATER_HEATER_RESTORE ||
       this->restore_mode_ == TemplateWaterHeaterRestoreMode::WATER_HEATER_RESTORE_AND_CALL) {
-    auto restore = this->restore_state_();
+    auto restore = this->restore_state();
 
     if (restore.has_value()) {
       restore->perform();

esphome/components/template/water_heater/template_water_heater.h

@@ -13,7 +13,7 @@ enum TemplateWaterHeaterRestoreMode {
   WATER_HEATER_RESTORE_AND_CALL,
 };
 
-class TemplateWaterHeater : public Component, public water_heater::WaterHeater {
+class TemplateWaterHeater : public water_heater::WaterHeater {
  public:
   TemplateWaterHeater();
 

esphome/components/water_heater/__init__.py

@@ -18,7 +18,7 @@ CODEOWNERS = ["@dhoeben"]
 IS_PLATFORM_COMPONENT = True
 
 water_heater_ns = cg.esphome_ns.namespace("water_heater")
-WaterHeater = water_heater_ns.class_("WaterHeater", cg.EntityBase)
+WaterHeater = water_heater_ns.class_("WaterHeater", cg.EntityBase, cg.Component)
 WaterHeaterCall = water_heater_ns.class_("WaterHeaterCall")
 WaterHeaterTraits = water_heater_ns.class_("WaterHeaterTraits")
 
@@ -46,7 +46,7 @@ _WATER_HEATER_SCHEMA = cv.ENTITY_BASE_SCHEMA.extend(
             }
         ),
     }
-)
+).extend(cv.COMPONENT_SCHEMA)
 
 _WATER_HEATER_SCHEMA.add_extra(entity_duplicate_validator("water_heater"))
 
@@ -91,6 +91,8 @@ async def register_water_heater(var: cg.Pvariable, config: ConfigType) -> cg.Pva
 
     cg.add_define("USE_WATER_HEATER")
 
+    await cg.register_component(var, config)
+
     cg.add(cg.App.register_water_heater(var))
 
     CORE.register_platform_component("water_heater", var)

esphome/components/water_heater/water_heater.cpp

@@ -146,6 +146,10 @@ void WaterHeaterCall::validate_() {
   }
 }
 
+void WaterHeater::setup() {
+  this->pref_ = global_preferences->make_preference<SavedWaterHeaterState>(this->get_preference_hash());
+}
+
 void WaterHeater::publish_state() {
   auto traits = this->get_traits();
   ESP_LOGD(TAG,
@@ -184,8 +188,7 @@ void WaterHeater::publish_state() {
   this->pref_.save(&saved);
 }
 
-optional<WaterHeaterCall> WaterHeater::restore_state_() {
-  this->pref_ = global_preferences->make_preference<SavedWaterHeaterState>(this->get_preference_hash());
+optional<WaterHeaterCall> WaterHeater::restore_state() {
   SavedWaterHeaterState recovered{};
   if (!this->pref_.load(&recovered))
     return {};

esphome/components/water_heater/water_heater.h

@@ -177,7 +177,7 @@ class WaterHeaterTraits {
   WaterHeaterModeMask supported_modes_;
 };
 
-class WaterHeater : public EntityBase {
+class WaterHeater : public EntityBase, public Component {
  public:
   WaterHeaterMode get_mode() const { return this->mode_; }
   float get_current_temperature() const { return this->current_temperature_; }
@@ -204,15 +204,16 @@ class WaterHeater : public EntityBase {
 #endif
   virtual void control(const WaterHeaterCall &call) = 0;
 
+  void setup() override;
+
+  optional<WaterHeaterCall> restore_state();
+
  protected:
   virtual WaterHeaterTraits traits() = 0;
 
   /// Log the traits of this water heater for dump_config().
   void dump_traits_(const char *tag);
 
-  /// Restore the state of the water heater, call this from your setup() method.
-  optional<WaterHeaterCall> restore_state_();
-
   /// Set the mode of the water heater. Should only be called from control().
   void set_mode_(WaterHeaterMode mode) { this->mode_ = mode; }
   /// Set the target temperature of the water heater. Should only be called from control().

esphome/components/wifi/wifi_component_esp8266.cpp

@@ -698,10 +698,6 @@ bool WiFiComponent::wifi_scan_start_(bool passive) {
   if (!this->wifi_mode_(true, {}))
     return false;
 
-  // Reset scan_done_ before starting new scan to prevent stale flag from previous scan
-  // (e.g., roaming scan completed just before unexpected disconnect)
-  this->scan_done_ = false;
-
   struct scan_config config {};
   memset(&config, 0, sizeof(config));
   config.ssid = nullptr;

esphome/components/wifi/wifi_component_esp_idf.cpp

@@ -14,7 +14,6 @@
 
 #include <algorithm>
 #include <cinttypes>
-#include <memory>
 #include <utility>
 #ifdef USE_WIFI_WPA2_EAP
 #if (ESP_IDF_VERSION_MAJOR >= 5) && (ESP_IDF_VERSION_MINOR >= 1)
@@ -829,29 +828,16 @@ void WiFiComponent::wifi_process_event_(IDFWiFiEvent *data) {
 
     uint16_t number = it.number;
     scan_result_.init(number);
-#ifdef USE_ESP32_HOSTED
-    // getting records one at a time fails on P4 with hosted esp32 WiFi coprocessor
-    // Presumably an upstream bug, work-around by getting all records at once
-    auto records = std::make_unique<wifi_ap_record_t[]>(number);
-    err = esp_wifi_scan_get_ap_records(&number, records.get());
-    if (err != ESP_OK) {
-      esp_wifi_clear_ap_list();
-      ESP_LOGW(TAG, "esp_wifi_scan_get_ap_records failed: %s", esp_err_to_name(err));
-      return;
-    }
-    for (uint16_t i = 0; i < number; i++) {
-      wifi_ap_record_t &record = records[i];
-#else
+
     // Process one record at a time to avoid large buffer allocation
+    wifi_ap_record_t record;
     for (uint16_t i = 0; i < number; i++) {
-      wifi_ap_record_t record;
       err = esp_wifi_scan_get_ap_record(&record);
       if (err != ESP_OK) {
         ESP_LOGW(TAG, "esp_wifi_scan_get_ap_record failed: %s", esp_err_to_name(err));
         esp_wifi_clear_ap_list();  // Free remaining records not yet retrieved
         break;
       }
-#endif  // USE_ESP32_HOSTED
       bssid_t bssid;
       std::copy(record.bssid, record.bssid + 6, bssid.begin());
       std::string ssid(reinterpret_cast<const char *>(record.ssid));

esphome/components/wifi/wifi_component_libretiny.cpp

@@ -649,10 +649,6 @@ bool WiFiComponent::wifi_scan_start_(bool passive) {
   if (!this->wifi_mode_(true, {}))
     return false;
 
-  // Reset scan_done_ before starting new scan to prevent stale flag from previous scan
-  // (e.g., roaming scan completed just before unexpected disconnect)
-  this->scan_done_ = false;
-
   // need to use WiFi because of WiFiScanClass allocations :(
   int16_t err = WiFi.scanNetworks(true, true, passive, 200);
   if (err != WIFI_SCAN_RUNNING) {

esphome/core/defines.h

@@ -42,7 +42,6 @@
 #define USE_DEVICES
 #define USE_DISPLAY
 #define USE_ENTITY_ICON
-#define USE_ESP32_HOSTED
 #define USE_ESP32_IMPROV_STATE_CALLBACK
 #define USE_EVENT
 #define USE_FAN

tests/components/sy6970/common.yaml

@@ -1,57 +0,0 @@
-sy6970:
-  id: sy6970_component
-  i2c_id: i2c_bus
-  address: 0x6A
-  enable_status_led: true
-  input_current_limit: 1000
-  charge_voltage: 4200
-  charge_current: 500
-  precharge_current: 128
-  charge_enabled: true
-  enable_adc: true
-  update_interval: 5s
-
-sensor:
-  - platform: sy6970
-    sy6970_id: sy6970_component
-    vbus_voltage:
-      name: "VBUS Voltage"
-      id: vbus_voltage_sensor
-    battery_voltage:
-      name: "Battery Voltage"
-      id: battery_voltage_sensor
-    system_voltage:
-      name: "System Voltage"
-      id: system_voltage_sensor
-    charge_current:
-      name: "Charge Current"
-      id: charge_current_sensor
-    precharge_current:
-      name: "Precharge Current"
-      id: precharge_current_sensor
-
-binary_sensor:
-  - platform: sy6970
-    sy6970_id: sy6970_component
-    vbus_connected:
-      name: "VBUS Connected"
-      id: vbus_connected_binary
-    charging:
-      name: "Charging"
-      id: charging_binary
-    charge_done:
-      name: "Charge Done"
-      id: charge_done_binary
-
-text_sensor:
-  - platform: sy6970
-    sy6970_id: sy6970_component
-    bus_status:
-      name: "Bus Status"
-      id: bus_status_text
-    charge_status:
-      name: "Charge Status"
-      id: charge_status_text
-    ntc_status:
-      name: "NTC Status"
-      id: ntc_status_text

tests/components/sy6970/test.esp32-idf.yaml

@@ -1,4 +0,0 @@
-packages:
-  i2c: !include ../../test_build_components/common/i2c/esp32-idf.yaml
-
-<<: !include common.yaml