Share the entity unit lookup and reject unknown temperature units

Find the action target's config through its declared id path
Convert climate.control and water_heater.template.publish temperatures into the entity unit
2026-10-15 02:32:49 +00:00 · 2026-10-13 21:01:57 -10:00 · 2026-10-13 20:34:11 -10:00 · 2026-10-13 20:06:05 -10:00 · 2026-10-13 19:09:26 -10:00 · 2026-10-13 18:53:33 -10:00
196 changed files with 5265 additions and 450 deletions
@@ -32,7 +32,7 @@ runs:
      # detects the activated venv via ``VIRTUAL_ENV`` so the venv layout
      # downstream jobs rely on is preserved.
      if: steps.cache-venv.outputs.cache-hit != 'true'
-      uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+      uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
      with:
        enable-cache: true
        # Pull request saves land in per-PR scopes nothing else can
@@ -29,7 +29,7 @@ jobs:
      - name: Set up uv
        # ``--system`` (below) installs into the setup-python interpreter;
        # no venv is created or restored by this workflow.
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
        with:
          enable-cache: true
          # Pull-request-only workflow: a save could never be shared and
@@ -97,7 +97,7 @@ jobs:
        run: git diff
      - if: failure()
        name: Archive artifacts
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
        with:
          name: generated-proto-files
          path: |
@@ -128,7 +128,7 @@ jobs:

      - name: Upload compile-test image artifact
        if: matrix.os == 'ubuntu-24.04' && matrix.build_type == 'docker'
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
        with:
          # The tar is already compressed, so upload it as-is. archive: false
          # skips the redundant zip and makes the file name the artifact name
@@ -210,7 +210,7 @@ jobs:
    steps:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
      - name: Download image artifact
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2
        with:
          name: compile-test-image.tar.zst
      - name: Load image
@@ -49,7 +49,7 @@ jobs:
        # detects the activated venv via ``VIRTUAL_ENV`` so downstream jobs
        # that ``. venv/bin/activate`` see an identical layout.
        if: steps.cache-venv.outputs.cache-hit != 'true'
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
        with:
          enable-cache: true
          # Pull request saves land in per-PR scopes nothing else can
@@ -438,7 +438,7 @@ jobs:
      - name: Set up uv
        # Only needed on cache miss to populate the venv.
        if: steps.cache-venv.outputs.cache-hit != 'true'
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
        with:
          enable-cache: true
          # Pull request saves land in per-PR scopes nothing else can
@@ -477,7 +477,7 @@ jobs:
        # Tests that compare rendered output write the image they actually got here, so a
        # failure can be looked at without reproducing the whole build locally.
        if: failure()
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
        with:
          name: integration-test-artifacts-${{ matrix.bucket.name }}
          path: test_artifacts/
@@ -488,7 +488,7 @@ jobs:
        # script/update_integration_test_durations.py; only full matrix dev
        # runs produce usable data.
        if: github.ref == 'refs/heads/dev' && needs.determine-jobs.outputs.integration-run-all == 'true'
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
        with:
          name: junit-integration-${{ strategy.job-index }}
          path: junit-integration.xml
@@ -528,7 +528,7 @@ jobs:
          script/check_import_time.py --check --har importtime.har
      - name: Upload waterfall HAR
        if: always()
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
        with:
          name: import-time-waterfall
          path: importtime.har
@@ -626,7 +626,7 @@ jobs:
            apt-get install -y libc6-dbg

      - name: Run CodSpeed benchmarks
-        uses: CodSpeedHQ/action@c4fd08a3a159bd0cc208da1e0edf32b8c47d75e5 # v5.4.0
+        uses: CodSpeedHQ/action@f842b9a3ffe213dbb81768fd7f7eeb4dfcf1c369 # v5.4.2
        with:
          run: |
            . venv/bin/activate
@@ -1448,7 +1448,7 @@ jobs:
        # install step (order-of-magnitude faster on cold boots,
        # with its own wheel cache). actions/setup-python still
        # provides the interpreter.
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
        with:
          enable-cache: true
          # Pull request saves land in per-PR scopes nothing else can
@@ -1647,7 +1647,7 @@ jobs:
          fi

      - name: Upload memory analysis JSON
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
        with:
          name: memory-analysis-target
          path: memory-analysis-target.json
@@ -1710,7 +1710,7 @@ jobs:
            --platform "$platform"

      - name: Upload memory analysis JSON
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
        with:
          name: memory-analysis-pr
          path: memory-analysis-pr.json
@@ -1740,13 +1740,13 @@ jobs:
          python-version: ${{ env.DEFAULT_PYTHON }}
          cache-key: ${{ needs.common.outputs.cache-key }}
      - name: Download target analysis JSON
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2
        with:
          name: memory-analysis-target
          path: ./memory-analysis
        continue-on-error: true
      - name: Download PR analysis JSON
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2
        with:
          name: memory-analysis-pr
          path: ./memory-analysis
@@ -56,7 +56,7 @@ jobs:

      # Initializes the CodeQL tools for scanning.
      - name: Initialize CodeQL
-        uses: github/codeql-action/init@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2
+        uses: github/codeql-action/init@24c54180a607b1449ed407dd24f251e4e9147c8d # v4.38.3
        with:
          languages: ${{ matrix.language }}
          build-mode: ${{ matrix.build-mode }}
@@ -84,6 +84,6 @@ jobs:
          exit 1

      - name: Perform CodeQL Analysis
-        uses: github/codeql-action/analyze@2892aa5e19bbd11bc0cff5427e3b750a04d9e3c2 # v4.38.2
+        uses: github/codeql-action/analyze@24c54180a607b1449ed407dd24f251e4e9147c8d # v4.38.3
        with:
          category: "/language:${{matrix.language}}"
@@ -162,7 +162,7 @@ jobs:
      #     version: ${{ needs.init.outputs.tag }}

      - name: Upload digests
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7.0.1
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7.0.2
        with:
          name: digests-${{ matrix.platform.arch }}
          path: /tmp/digests
@@ -195,7 +195,7 @@ jobs:
      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1

      - name: Download digests
-        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8.0.1
+        uses: actions/download-artifact@9000827ccba6bdab643e8b6fd33ac0654aef8333 # v8.0.2
        with:
          pattern: digests-*
          path: /tmp/digests
@@ -47,7 +47,7 @@ jobs:
        # setup-python interpreter so subsequent ``prek`` /
        # ``script/run-in-env.py`` steps find the deps without a
        # ``uv run`` prefix.
-        uses: astral-sh/setup-uv@c18668ad3cf93ea998bef934396af7bb5c839dc7 # v10.2.0
+        uses: astral-sh/setup-uv@1c37ad07a6a961277cf70c0d37d6f313000f5884 # v10.3.0
        with:
          enable-cache: true
          # Pin uv version so the action does not have to fetch the
@@ -10,7 +10,7 @@ ci:
 repos:
  - repo: https://github.com/astral-sh/ruff-pre-commit
    # Ruff version.
-    rev: v0.16.10
+    rev: v0.17.0
    hooks:
      # Run the linter.
      - id: ruff
@@ -36,7 +36,7 @@ repos:
      - id: end-of-file-fixer
      - id: trailing-whitespace
  - repo: https://github.com/asottile/pyupgrade
-    rev: v3.21.2
+    rev: v3.22.0
    hooks:
      - id: pyupgrade
        args: [--py312-plus]
@@ -439,6 +439,7 @@ esphome/components/ota/* @esphome/core
 esphome/components/output/* @esphome/core
 esphome/components/packet_transport/* @clydebarrow
 esphome/components/pca6416a/* @Mat931
+esphome/components/pca9505/* @ajfriesen @ssieb
 esphome/components/pca9554/* @bdraco @clydebarrow @hwstar
 esphome/components/pcf85063/* @brogon
 esphome/components/pcf8563/* @KoenBreeman
@@ -338,8 +338,9 @@ class ApplyField:
    Double a literal brace in a template. ``conf_key`` may be a path into nested sections.
    ``type_`` may be a C++ type string using ``{parent}`` when the type is only known per
    instance. ``const_fn(config, value)`` renders a constant's argument text when ``cg.safe_exp``
-    is not the right spelling (unit conversion belongs in the validator); a lambda or an id
-    bypasses it, so the target must also take a plain ``type_``. An absent key emits nothing.
+    is not the right spelling, or the value depends on another entity's config, such as the unit
+    a climate reports in; a lambda or an id bypasses it, so the target must also take a plain
+    ``type_``. An absent key emits nothing.
    """

    conf_key: str | tuple[str, ...]
@@ -1,10 +1,11 @@
 #pragma once

 #include <set>
+#include "esphome/core/log.h"

 namespace esphome::bedjet {

-static const char *const TAG = "bedjet";
+ESPHOME_LOG_TAG(TAG, "bedjet");

 /// Converts a BedJet fan step to a speed percentage, in the range of 5% to 100%.
 inline static uint8_t bedjet_fan_step_to_speed(const uint8_t fan) {
@@ -4,7 +4,7 @@

 namespace esphome::ble_client {

-const char *const Automation::TAG = "ble_client.automation";
+const char *const Automation::TAG = "ble_client.automation";  // NOLINT: ble_client never builds for ESP8266

 }  // namespace esphome::ble_client

@@ -2,10 +2,11 @@

 #include "esphome/components/bme280_base/bme280_base.h"
 #include "esphome/components/i2c/i2c.h"
+#include "esphome/core/log.h"

 namespace esphome::bme280_i2c {

-static const char *const TAG = "bme280_i2c.sensor";
+ESPHOME_LOG_TAG(TAG, "bme280_i2c.sensor");

 class BME280I2CComponent final : public esphome::bme280_base::BME280Component, public i2c::I2CDevice {
  bool read_byte(uint8_t a_register, uint8_t *data) override;
@@ -2,10 +2,11 @@

 #include "esphome/components/bmp280_base/bmp280_base.h"
 #include "esphome/components/i2c/i2c.h"
+#include "esphome/core/log.h"

 namespace esphome::bmp280_i2c {

-static const char *const TAG = "bmp280_i2c.sensor";
+ESPHOME_LOG_TAG(TAG, "bmp280_i2c.sensor");

 /// This class implements support for the BMP280 Temperature+Pressure i2c sensor.
 class BMP280I2CComponent final : public esphome::bmp280_base::BMP280Component, public i2c::I2CDevice {
@@ -2,10 +2,11 @@

 #include "esphome/components/bmp581_base/bmp581_base.h"
 #include "esphome/components/i2c/i2c.h"
+#include "esphome/core/log.h"

 namespace esphome::bmp581_i2c {

-static const char *const TAG = "bmp581_i2c.sensor";
+ESPHOME_LOG_TAG(TAG, "bmp581_i2c.sensor");

 /// This class implements support for the BMP581 Temperature+Pressure i2c sensor.
 class BMP581I2CComponent final : public esphome::bmp581_base::BMP581Component, public i2c::I2CDevice {
@@ -8,7 +8,7 @@

 namespace esphome::chsc6x {

-static const char *const TAG = "chsc6x.touchscreen";
+ESPHOME_LOG_TAG(TAG, "chsc6x.touchscreen");

 static const uint8_t CHSC6X_REG_STATUS = 0x00;
 static const uint8_t CHSC6X_REG_STATUS_TOUCH = 0x00;
@@ -46,12 +46,15 @@ from esphome.const import (
    CONF_TARGET_TEMPERATURE_LOW_STATE_TOPIC,
    CONF_TARGET_TEMPERATURE_STATE_TOPIC,
    CONF_TEMPERATURE_STEP,
+    CONF_UNIT_OF_MEASUREMENT,
    CONF_VISUAL,
    CONF_WEB_SERVER,
 )
 from esphome.core import CORE, CoroPriority, coroutine_with_priority
 from esphome.core.entity_helpers import (
    entity_duplicate_validator,
+    entity_temperature_unit,
+    entity_temperature_unit_of_id,
    queue_entity_register,
    setup_entity,
 )
@@ -137,13 +140,10 @@ CONF_MIN_HUMIDITY = "min_humidity"
 CONF_MAX_HUMIDITY = "max_humidity"
 CONF_TARGET_HUMIDITY = "target_humidity"

-visual_temperature = cv.float_with_unit("visual_temperature", "(°|(° ?)?[CKF])?")
-
-
 VISUAL_TEMPERATURE_STEP_SCHEMA = cv.Schema(
    {
-        cv.Required(CONF_TARGET_TEMPERATURE): visual_temperature,
-        cv.Required(CONF_CURRENT_TEMPERATURE): visual_temperature,
+        cv.Required(CONF_TARGET_TEMPERATURE): cv.temperature_with_unit,
+        cv.Required(CONF_CURRENT_TEMPERATURE): cv.temperature_with_unit,
    }
 )

@@ -154,13 +154,30 @@ def visual_temperature_step(value: Any) -> ConfigType:
        return VISUAL_TEMPERATURE_STEP_SCHEMA(value)

    # Otherwise, use the single value for both properties
-    value = visual_temperature(value)
-    return VISUAL_TEMPERATURE_STEP_SCHEMA(
-        {
-            CONF_TARGET_TEMPERATURE: value,
-            CONF_CURRENT_TEMPERATURE: value,
-        }
-    )
+    value = cv.temperature_with_unit(value)
+    return {CONF_TARGET_TEMPERATURE: value, CONF_CURRENT_TEMPERATURE: value}
+
+
+def temperature_in_entity_unit(
+    config: ConfigType, value: tuple[float, str | None]
+) -> str:
+    """Render a static action temperature in the unit of the climate the action targets."""
+    unit = entity_temperature_unit_of_id(config[CONF_ID])
+    return str(cg.safe_exp(cv.convert_temperature(*value, unit)))
+
+
+def _visual_temperatures_in_entity_unit(config: ConfigType) -> ConfigType:
+    """Convert the visual temperatures into the entity's unit."""
+    unit = entity_temperature_unit(config)
+    visual = config[CONF_VISUAL]
+    for key in (CONF_MIN_TEMPERATURE, CONF_MAX_TEMPERATURE):
+        if isinstance(value := visual.get(key), tuple):
+            visual[key] = cv.convert_temperature(*value, unit)
+    if (step := visual.get(CONF_TEMPERATURE_STEP)) is not None:
+        for key in (CONF_TARGET_TEMPERATURE, CONF_CURRENT_TEMPERATURE):
+            if isinstance(value := step[key], tuple):
+                step[key] = cv.convert_temperature(*value, unit, delta=True)
+    return config


 _CLIMATE_SCHEMA = (
@@ -171,8 +188,8 @@ _CLIMATE_SCHEMA = (
            cv.OnlyWith(CONF_MQTT_ID, "mqtt"): cv.declare_id(mqtt.MQTTClimateComponent),
            cv.Optional(CONF_VISUAL, default={}): cv.Schema(
                {
-                    cv.Optional(CONF_MIN_TEMPERATURE): cv.temperature,
-                    cv.Optional(CONF_MAX_TEMPERATURE): cv.temperature,
+                    cv.Optional(CONF_MIN_TEMPERATURE): cv.temperature_with_unit,
+                    cv.Optional(CONF_MAX_TEMPERATURE): cv.temperature_with_unit,
                    cv.Optional(CONF_TEMPERATURE_STEP): visual_temperature_step,
                    cv.Optional(CONF_MIN_HUMIDITY): cv.percentage_int,
                    cv.Optional(CONF_MAX_HUMIDITY): cv.percentage_int,
@@ -249,6 +266,7 @@ _CLIMATE_SCHEMA = (


 _CLIMATE_SCHEMA.add_extra(entity_duplicate_validator("climate"))
+_CLIMATE_SCHEMA.add_extra(_visual_temperatures_in_entity_unit)


 def climate_schema(
@@ -256,10 +274,18 @@ def climate_schema(
    *,
    entity_category: str = cv.UNDEFINED,
    icon: str = cv.UNDEFINED,
+    temperature_unit: bool = False,
 ) -> cv.Schema:
+    """Build the schema of a climate platform.
+
+    ``temperature_unit`` adds ``unit_of_measurement`` for platforms whose temperatures are all
+    in the unit the user picks; the class then needs ``set_temperature_unit(TemperatureUnit)``.
+    """
    schema = {
        cv.GenerateID(): cv.declare_id(class_),
    }
+    if temperature_unit:
+        schema[cv.Optional(CONF_UNIT_OF_MEASUREMENT)] = cv.temperature_unit

    for key, default, validator in [
        (CONF_ENTITY_CATEGORY, entity_category, cv.entity_category),
@@ -460,9 +486,13 @@ CLIMATE_CONTROL_ACTION_SCHEMA = cv.Schema(
    {
        cv.Required(CONF_ID): cv.use_id(Climate),
        cv.Optional(CONF_MODE): cv.templatable(validate_climate_mode),
-        cv.Optional(CONF_TARGET_TEMPERATURE): cv.templatable(cv.temperature),
-        cv.Optional(CONF_TARGET_TEMPERATURE_LOW): cv.templatable(cv.temperature),
-        cv.Optional(CONF_TARGET_TEMPERATURE_HIGH): cv.templatable(cv.temperature),
+        cv.Optional(CONF_TARGET_TEMPERATURE): cv.templatable(cv.temperature_with_unit),
+        cv.Optional(CONF_TARGET_TEMPERATURE_LOW): cv.templatable(
+            cv.temperature_with_unit
+        ),
+        cv.Optional(CONF_TARGET_TEMPERATURE_HIGH): cv.templatable(
+            cv.temperature_with_unit
+        ),
        cv.Optional(CONF_TARGET_HUMIDITY): cv.templatable(cv.percentage_int),
        cv.Optional(CONF_AWAY): cv.invalid("Use preset instead"),
        cv.Exclusive(CONF_FAN_MODE, "fan_mode"): cv.templatable(
@@ -482,12 +512,23 @@ automation.register_apply_action(
    "climate.control",
    CLIMATE_CONTROL_ACTION_SCHEMA,
    automation.ApplyField(CONF_MODE, "set_mode", ClimateMode),
-    automation.ApplyField(CONF_TARGET_TEMPERATURE, "set_target_temperature", cg.float_),
    automation.ApplyField(
-        CONF_TARGET_TEMPERATURE_LOW, "set_target_temperature_low", cg.float_
+        CONF_TARGET_TEMPERATURE,
+        "set_target_temperature",
+        cg.float_,
+        temperature_in_entity_unit,
    ),
    automation.ApplyField(
-        CONF_TARGET_TEMPERATURE_HIGH, "set_target_temperature_high", cg.float_
+        CONF_TARGET_TEMPERATURE_LOW,
+        "set_target_temperature_low",
+        cg.float_,
+        temperature_in_entity_unit,
+    ),
+    automation.ApplyField(
+        CONF_TARGET_TEMPERATURE_HIGH,
+        "set_target_temperature_high",
+        cg.float_,
+        temperature_in_entity_unit,
    ),
    automation.ApplyField(CONF_TARGET_HUMIDITY, "set_target_humidity", cg.float_),
    automation.ApplyField(CONF_FAN_MODE, "set_fan_mode", ClimateFanMode),
@@ -8,7 +8,7 @@

 namespace esphome::cst816 {

-static const char *const TAG = "cst816.touchscreen";
+ESPHOME_LOG_TAG(TAG, "cst816.touchscreen");

 static const uint8_t REG_STATUS = 0x00;
 static const uint8_t REG_TOUCH_NUM = 0x02;
@@ -8,7 +8,7 @@

 namespace esphome::cst9220 {

-static const char *const TAG = "cst9220.touchscreen";
+ESPHOME_LOG_TAG(TAG, "cst9220.touchscreen");

 // The CST92xx family uses 16-bit (big-endian) register addresses.
 static const uint16_t REG_TOUCH_DATA = 0xD000;  // touch report
@@ -1,4 +1,6 @@
 #pragma once
+#include <array>
+#include <cstdint>
 #include "esphome/core/color.h"

 namespace esphome::display {
@@ -154,4 +156,54 @@ class ColorUtil {
    return color;
  }
 };
+
+/** Rec.601 luma weights (0.299/0.587/0.114), scaled by 256 */
+static constexpr uint16_t REC601_LUMA_R = 77;
+static constexpr uint16_t REC601_LUMA_G = 150;
+static constexpr uint16_t REC601_LUMA_B = 29;
+
+/** Rec.601 luma of an RGB color, for optimum perceptual brightness */
+constexpr uint8_t rec601_luma(Color color) {
+  return (uint8_t) ((REC601_LUMA_R * color.r + REC601_LUMA_G * color.g + REC601_LUMA_B * color.b + 128u) >> 8);
+}
+
+/** Map an RGB color to a single monochrome bit: 1 = white, 0 = black */
+constexpr uint8_t color_to_mono(Color color) { return rec601_luma(color) >= 128 ? 1 : 0; }
+
+/** color_to_mono() of an RGB565 value as ColorUtil::to_color() reads it, from table lookups instead of a division
+ * per channel.
+ */
+class Rgb565ToMono {
+ public:
+  explicit Rgb565ToMono(ColorOrder order) {
+    // Rec.601 weight of the 5-bit, 6-bit and 5-bit fields, by the channel each one holds in this order
+    uint16_t high = REC601_LUMA_R, middle = REC601_LUMA_G, low = REC601_LUMA_B;
+    if (order == COLOR_ORDER_BGR) {
+      high = REC601_LUMA_B;
+      low = REC601_LUMA_R;
+    } else if (order == COLOR_ORDER_GRB) {
+      high = REC601_LUMA_G;
+      middle = REC601_LUMA_R;
+    }
+    // Each field value scaled to 0..255, then weighted
+    for (unsigned i = 0; i != 32; i++) {
+      this->high_[i] = high * esp_scale(i, 31);
+      this->low_[i] = low * esp_scale(i, 31);
+    }
+    for (unsigned i = 0; i != 64; i++)
+      this->middle_[i] = middle * esp_scale(i, 63);
+  }
+
+  uint8_t operator()(uint16_t value) const {
+    const uint32_t weighted = this->high_[value >> 11] + this->middle_[(value >> 5) & 0x3F] + this->low_[value & 0x1F];
+    return ((weighted + 128u) >> 8) >= 128 ? 1 : 0;
+  }
+
+ protected:
+  // Weighted contribution of each value of each field
+  std::array<uint16_t, 32> high_{};
+  std::array<uint16_t, 64> middle_{};
+  std::array<uint16_t, 32> low_{};
+};
+
 }  // namespace esphome::display
@@ -23,11 +23,18 @@ DEPENDENCIES = ["uart"]

 emontx_ns = cg.esphome_ns.namespace("emontx")
 EmonTx = emontx_ns.class_("EmonTx", cg.Component, uart.UARTDevice)
+LockOnReboot = emontx_ns.enum("LockOnReboot", is_class=True)

 CONF_EMONTX_ID = "emontx_id"
 CONF_TAG_NAME = "tag_name"
 CONF_ON_JSON = "on_json"
 CONF_LOCK_ON_REBOOT = "lock_on_reboot"
+LOCK_ON_REBOOT_AUTO = "auto"
+LOCK_ON_REBOOT_MODES = {
+    LOCK_ON_REBOOT_AUTO: LockOnReboot.LOCK_ON_REBOOT_AUTO,
+    True: LockOnReboot.LOCK_ON_REBOOT_ALWAYS,
+    False: LockOnReboot.LOCK_ON_REBOOT_NEVER,
+}

 DOMAIN = "emontx"

@@ -59,7 +66,9 @@ CONFIG_SCHEMA = (
            cv.GenerateID(): cv.declare_id(EmonTx),
            cv.Optional(CONF_ON_JSON): _synchronous_automation_schema(),
            cv.Optional(CONF_ON_DATA): _synchronous_automation_schema(),
-            cv.Optional(CONF_LOCK_ON_REBOOT, default=False): cv.boolean,
+            cv.Optional(CONF_LOCK_ON_REBOOT, default=LOCK_ON_REBOOT_AUTO): cv.Any(
+                cv.boolean, cv.one_of(LOCK_ON_REBOOT_AUTO, lower=True)
+            ),
        }
    )
    .extend(cv.COMPONENT_SCHEMA)
@@ -135,8 +144,11 @@ async def to_code(config: ConfigType) -> None:
    await uart.register_uart_device(var, config)
    await automation.build_callback_automations(var, config, _CALLBACK_AUTOMATIONS)

-    if config[CONF_LOCK_ON_REBOOT]:
-        cg.add(var.set_lock_on_reboot(True))
+    lock = config[CONF_LOCK_ON_REBOOT]
+    cg.add(var.set_lock_on_reboot(LOCK_ON_REBOOT_MODES[lock]))
+    if lock == LOCK_ON_REBOOT_AUTO:
+        # Locking depends on the firmware version the emonTx reports
+        cg.add_define("USE_EMONTX_VERSION")


 # Action: emontx.send_command
@@ -7,30 +7,85 @@ namespace esphome::emontx {

 ESPHOME_LOG_TAG(TAG, "emontx");

+static constexpr uint32_t UNLOCK_ID = 0;
+// The emonTx joins bytes received while a command is pending into that command, so the next one waits
+static constexpr uint32_t COMMAND_GAP_MS = 250;
+
 #ifdef USE_EMONTX_VERSION
-static constexpr uint32_t VERSION_REQUEST_ID = 0;
-// The emonTx joins bytes received while a command is pending into that command, so 'v' waits
-static constexpr uint32_t VERSION_REQUEST_DELAY_MS = 250;
+static constexpr uint32_t VERSION_REQUEST_ID = 1;
+// Without a reply, 'v' is sent again every VERSION_RETRY_FRAMES data lines, VERSION_MAX_ATTEMPTS times in all
+static constexpr uint8_t VERSION_RETRY_FRAMES = 2;
+static constexpr uint8_t VERSION_MAX_ATTEMPTS = 3;
 // Line of the 'v' reply (and of the boot banner) carrying the release, e.g. "  - Version:    v1.1.1"
 static const char VERSION_PREFIX[] PROGMEM = "  - Version:";
+// Every data line starts with the message counter, in JSON or text format
+static const char MSG_JSON_PREFIX[] PROGMEM = "{\"MSG\":";
+static const char MSG_TEXT_PREFIX[] PROGMEM = "MSG:";
+// First firmware with 'emonlock' and 'emonunlock'; older firmware takes them for the bootloader command
+static constexpr uint32_t LOCK_MIN_MAJOR = 1;
+static constexpr uint32_t LOCK_MIN_MINOR = 2;
+
+// True if line starts with the PROGMEM prefix and has more after it
+static bool starts_with(const char *line, size_t len, const char *prefix, size_t prefix_len) {
+  return len > prefix_len && ESPHOME_strncmp_P(line, prefix, prefix_len) == 0;
+}
+
+// Reads the decimal number (up to 9 digits) at pos and moves pos past it; false if there is none
+static bool read_number(const char *&pos, const char *end, uint32_t &value) {
+  const char *start = pos;
+  value = 0;
+  while (pos < end && pos - start < 9 && *pos >= '0' && *pos <= '9')
+    value = value * 10 + (*pos++ - '0');
+  return pos != start;
+}
+
+// True for a release such as "v1.2.0" or "v1.3.0-rc1" from LOCK_MIN_MAJOR.LOCK_MIN_MINOR on
+static bool supports_lock(const char *version, const char *end) {
+  if (version < end && (*version == 'v' || *version == 'V'))
+    version++;
+  uint32_t major;
+  if (!read_number(version, end, major) || version == end || *version != '.')
+    return false;
+  version++;
+  uint32_t minor;
+  if (!read_number(version, end, minor))
+    return false;
+  return major > LOCK_MIN_MAJOR || (major == LOCK_MIN_MAJOR && minor >= LOCK_MIN_MINOR);
+}
 #endif

 void EmonTx::setup() {
  this->buffer_pos_ = 0;
-  if (this->lock_on_reboot_) {
-    // The line feed ends any boot noise first
-    ESP_LOGI(TAG, "Unlocking emonTx after boot");
+  if (this->lock_on_reboot_ == LockOnReboot::LOCK_ON_REBOOT_ALWAYS) {
+    // The line feed ends any boot noise
    this->write_byte('\n');
-    this->send_command("emonunlock");
+    this->set_timeout(UNLOCK_ID, COMMAND_GAP_MS, [this]() {
+      this->unlock_();
+#ifdef USE_EMONTX_VERSION
+      if (this->wants_version_())
+        this->request_version_();
+#endif
+    });
+    return;
  }
 #ifdef USE_EMONTX_VERSION
-  if (this->version_text_sensor_ != nullptr)
+  // With AUTO, the reply decides whether to unlock
+  if (this->wants_version_())
    this->request_version_();
 #endif
 }

+void EmonTx::unlock_() {
+  ESP_LOGI(TAG, "Unlocking emonTx");
+  this->send_command("emonunlock");
+}
+
 void EmonTx::on_shutdown() {
-  if (!this->lock_on_reboot_)
+  bool lock = this->lock_on_reboot_ == LockOnReboot::LOCK_ON_REBOOT_ALWAYS;
+#ifdef USE_EMONTX_VERSION
+  lock |= this->lock_on_reboot_ == LockOnReboot::LOCK_ON_REBOOT_AUTO && this->lock_supported_;
+#endif
+  if (!lock)
    return;
  if (this->is_paused()) {
    ESP_LOGW(TAG, "Not locking emonTx before shutdown, UART is paused");
@@ -63,7 +118,7 @@ void EmonTx::loop() {
      this->discarding_line_ = dropped != '\n';
 #ifdef USE_EMONTX_VERSION
    // The emonTx may have been flashed, or a request dropped, during the pause
-    if (this->version_text_sensor_ != nullptr)
+    if (this->wants_version_())
      this->request_version_();
 #endif
  }
@@ -96,8 +151,10 @@ void EmonTx::loop() {
          this->parse_json_(this->buffer_.data(), len);
        }
 #ifdef USE_EMONTX_VERSION
-        if (this->version_text_sensor_ != nullptr)
+        if (this->wants_version_()) {
+          this->parse_msg_number_(this->buffer_.data(), len);
          this->parse_version_line_(this->buffer_.data(), len);
+        }
 #endif
      }
    } else if (received == '\r' || this->discarding_line_) {
@@ -124,16 +181,6 @@ void EmonTx::parse_json_(const char *data, size_t len) {
      }
    }
 #endif
-#ifdef USE_EMONTX_VERSION
-    auto msg = root["MSG"];
-    if (this->version_text_sensor_ != nullptr && msg.is<uint32_t>()) {
-      // MSG restarts at 1 when the emonTx reboots, as it does after a firmware update
-      uint32_t msg_number = msg;
-      if (msg_number <= this->last_msg_number_)
-        this->request_version_();
-      this->last_msg_number_ = msg_number;
-    }
-#endif

    this->json_callbacks_.call(root, StringRef(data, len));
    return true;
@@ -145,17 +192,50 @@ void EmonTx::parse_json_(const char *data, size_t len) {
 }

 #ifdef USE_EMONTX_VERSION
-// The line feed ends any pending input; the reply is picked up in loop() by parse_version_line_()
 void EmonTx::request_version_() {
+  // The firmware may have changed; until the reply, an unknown version gets no lock commands
+  this->lock_supported_ = false;
+  this->version_frames_left_ = VERSION_RETRY_FRAMES * VERSION_MAX_ATTEMPTS;
+  this->send_version_request_();
+}
+
+// The line feed ends any pending input; the reply is picked up in loop() by parse_version_line_()
+void EmonTx::send_version_request_() {
  if (this->is_paused())
    return;
  this->write_byte('\n');
-  this->set_timeout(VERSION_REQUEST_ID, VERSION_REQUEST_DELAY_MS, [this]() { this->send_command("v"); });
+  this->set_timeout(VERSION_REQUEST_ID, COMMAND_GAP_MS, [this]() { this->send_command("v"); });
+}
+
+void EmonTx::parse_msg_number_(const char *line, size_t len) {
+  const char *pos;
+  if (starts_with(line, len, MSG_JSON_PREFIX, sizeof(MSG_JSON_PREFIX) - 1)) {
+    pos = line + sizeof(MSG_JSON_PREFIX) - 1;
+  } else if (starts_with(line, len, MSG_TEXT_PREFIX, sizeof(MSG_TEXT_PREFIX) - 1)) {
+    pos = line + sizeof(MSG_TEXT_PREFIX) - 1;
+  } else {
+    return;
+  }
+  uint32_t msg_number;
+  if (!read_number(pos, line + len, msg_number))
+    return;
+
+  // MSG restarts at 1 when the emonTx reboots, as it does after a firmware update
+  if (msg_number <= this->last_msg_number_) {
+    this->request_version_();
+  } else if (this->version_frames_left_ > 0) {
+    if (--this->version_frames_left_ == 0) {
+      ESP_LOGW(TAG, "No firmware version from the emonTx, it may still be locked");
+    } else if (this->version_frames_left_ % VERSION_RETRY_FRAMES == 0) {
+      this->send_version_request_();
+    }
+  }
+  this->last_msg_number_ = msg_number;
 }

 void EmonTx::parse_version_line_(const char *line, size_t len) {
  constexpr size_t prefix_len = sizeof(VERSION_PREFIX) - 1;
-  if (len <= prefix_len || ESPHOME_strncmp_P(line, VERSION_PREFIX, prefix_len) != 0)
+  if (!starts_with(line, len, VERSION_PREFIX, prefix_len))
    return;
  const char *version = line + prefix_len;
  const char *end = line + len;
@@ -164,7 +244,23 @@ void EmonTx::parse_version_line_(const char *line, size_t len) {
  if (version == end)
    return;
  ESP_LOGI(TAG, "emonTx firmware version: %.*s", static_cast<int>(end - version), version);
-  this->version_text_sensor_->publish_state(version, end - version);
+  this->version_frames_left_ = 0;
+#ifdef USE_EMONTX_VERSION_TEXT_SENSOR
+  if (this->version_text_sensor_ != nullptr)
+    this->version_text_sensor_->publish_state(version, end - version);
+#endif
+
+  bool supported = supports_lock(version, end);
+  if (this->lock_on_reboot_ == LockOnReboot::LOCK_ON_REBOOT_AUTO && supported && !this->unlock_sent_) {
+    // Once the rest of the reply has gone out; a pause drops it, and the version request on resume retries
+    this->set_timeout(UNLOCK_ID, COMMAND_GAP_MS, [this]() {
+      if (this->is_paused())
+        return;
+      this->unlock_();
+      this->unlock_sent_ = true;
+    });
+  }
+  this->lock_supported_ = supported;
 }
 #endif

@@ -173,7 +269,13 @@ void EmonTx::parse_version_line_(const char *line, size_t len) {
 */
 void EmonTx::dump_config() {
  ESP_LOGCONFIG(TAG, "EmonTx:");
-  ESP_LOGCONFIG(TAG, "  Lock on reboot: %s", YESNO(this->lock_on_reboot_));
+  const char *lock = LOG_STR_LITERAL("no");
+  if (this->lock_on_reboot_ == LockOnReboot::LOCK_ON_REBOOT_ALWAYS) {
+    lock = LOG_STR_LITERAL("yes");
+  } else if (this->lock_on_reboot_ == LockOnReboot::LOCK_ON_REBOOT_AUTO) {
+    lock = LOG_STR_LITERAL("auto");
+  }
+  ESP_LOGCONFIG(TAG, "  Lock on reboot: %s", lock);

 #ifdef USE_SENSOR
  ESP_LOGCONFIG(TAG, "  Registered sensors: %zu", this->sensors_.size());
@@ -183,7 +285,7 @@ void EmonTx::dump_config() {
 #else
  ESP_LOGCONFIG(TAG, "  Sensor support: DISABLED");
 #endif
-#ifdef USE_EMONTX_VERSION
+#ifdef USE_EMONTX_VERSION_TEXT_SENSOR
  LOG_TEXT_SENSOR("  ", "Firmware version", this->version_text_sensor_);
 #endif
 }
@@ -13,7 +13,7 @@
 #ifdef USE_SENSOR
 #include "esphome/components/sensor/sensor.h"
 #endif
-#ifdef USE_EMONTX_VERSION
+#ifdef USE_EMONTX_VERSION_TEXT_SENSOR
 #include "esphome/components/text_sensor/text_sensor.h"
 #endif

@@ -22,6 +22,12 @@ namespace esphome::emontx {
 /// Maximum line length in bytes (plus one byte reserved for null terminator)
 static constexpr size_t MAX_LINE_LENGTH = 1024;

+enum class LockOnReboot : uint8_t {
+  LOCK_ON_REBOOT_NEVER,
+  LOCK_ON_REBOOT_ALWAYS,
+  LOCK_ON_REBOOT_AUTO,  // Only when the emonTx reports firmware v1.2.0 or later
+};
+
 /**
 * @class EmonTx
 * @brief Main class for the EmonTx component.
@@ -30,7 +36,7 @@ static constexpr size_t MAX_LINE_LENGTH = 1024;
 * extracts tags and values, and publishes them to registered sensors.
 */
 class EmonTx final : public Component, public uart::UARTDevice {
-#ifdef USE_EMONTX_VERSION
+#ifdef USE_EMONTX_VERSION_TEXT_SENSOR
  SUB_TEXT_SENSOR(version)
 #endif
 public:
@@ -56,8 +62,8 @@ class EmonTx final : public Component, public uart::UARTDevice {
  bool is_paused() const { return this->paused_.load(std::memory_order_relaxed); }

  /// Lock the emonTx ('emonlock') before a reboot, so serial garbage during the reboot is not taken
-  /// as a command, and unlock it in setup(). Needs emonTx firmware v1.2.0 or later.
-  void set_lock_on_reboot(bool lock_on_reboot) { this->lock_on_reboot_ = lock_on_reboot; }
+  /// as a command, and unlock it after boot. Needs emonTx firmware v1.2.0 or later, which AUTO checks.
+  void set_lock_on_reboot(LockOnReboot lock_on_reboot) { this->lock_on_reboot_ = lock_on_reboot; }

 #ifdef USE_SENSOR
  void init_sensors(size_t count) { this->sensors_.init(count); }
@@ -66,8 +72,18 @@ class EmonTx final : public Component, public uart::UARTDevice {

 protected:
  void parse_json_(const char *data, size_t len);
+  void unlock_();
 #ifdef USE_EMONTX_VERSION
+  bool wants_version_() const {
+#ifdef USE_EMONTX_VERSION_TEXT_SENSOR
+    if (this->version_text_sensor_ != nullptr)
+      return true;
+#endif
+    return this->lock_on_reboot_ == LockOnReboot::LOCK_ON_REBOOT_AUTO;
+  }
  void request_version_();
+  void send_version_request_();
+  void parse_msg_number_(const char *line, size_t len);
  void parse_version_line_(const char *line, size_t len);
 #endif

@@ -79,9 +95,12 @@ class EmonTx final : public Component, public uart::UARTDevice {
  uint16_t buffer_pos_{0};
  std::atomic<bool> paused_{false};
  bool was_paused_{false};
-  bool lock_on_reboot_{false};
+  LockOnReboot lock_on_reboot_{LockOnReboot::LOCK_ON_REBOOT_NEVER};
  bool discarding_line_{false};  // Set after an overflow or a pause until the end of that line
 #ifdef USE_EMONTX_VERSION
+  bool lock_supported_{false};      // The last version reported is v1.2.0 or later
+  bool unlock_sent_{false};         // AUTO has sent 'emonunlock' since boot
+  uint8_t version_frames_left_{0};  // Data lines still to wait for a version reply; 0 when none is owed
  uint32_t last_msg_number_{0};
 #endif
  std::array<char, MAX_LINE_LENGTH + 1> buffer_{};
@@ -21,3 +21,4 @@ async def to_code(config: ConfigType) -> None:
    text_sensors = text_sensor.sub_text_sensors(config)
    if await text_sensors(CONF_VERSION, hub.set_version_text_sensor) is not None:
        cg.add_define("USE_EMONTX_VERSION")
+        cg.add_define("USE_EMONTX_VERSION_TEXT_SENSOR")
@@ -2,6 +2,7 @@

 #include <cstdint>
 #include <algorithm>
+#include "esphome/components/display/display_color_utils.h"
 #include "esphome/core/color.h"

 /* Utility for converting internal \a Color RGB representation to supported IC hardware color keys
@@ -13,21 +14,15 @@

 namespace esphome::epaper_spi {

+// The Rec.601 luma helpers and the RGB565 mono lookup live in the shared display utilities, so other
+// drivers (e.g. it8951 in its 1 bit per pixel mode) can use them too.
+using display::color_to_mono;
+using display::rec601_luma;
+using display::Rgb565ToMono;
+
 /** Delta for when to regard as gray */
 static constexpr uint8_t COLORCONV_GRAY_THRESHOLD = 50;

-/** Rec.601 luma (0.299/0.587/0.114 weights, scaled by 256) for optimum perceptual brightness */
-constexpr uint8_t rec601_luma(Color color) {
-  return (uint8_t) ((77u * color.r + 150u * color.g + 29u * color.b + 128u) >> 8);
-}
-
-/** Map RGB color to a single monochrome bit
- *
- * @param color RGB color to convert from
- * @return      1 = white, 0 = black
- */
-constexpr uint8_t color_to_mono(Color color) { return rec601_luma(color) >= 128 ? 1 : 0; }
-
 /** Map RGB color to one of 4 discrete gray levels (2 bits per pixel)
 *
 * @param color RGB color to convert from
@@ -131,9 +131,7 @@ void EPaperBase::update() {
 }

 void EPaperBase::wait_for_idle_(bool should_wait) {
-#if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
  this->waiting_for_idle_start_ = millis();
-#endif
  this->waiting_for_idle_ = should_wait;
 }

@@ -156,6 +154,10 @@ void EPaperBase::loop() {
      ESP_LOGV(TAG, "Screen was busy for %u ms", (unsigned) (millis() - this->waiting_for_idle_start_));
 #endif
    } else {
+      if (now - this->waiting_for_idle_start_ > this->busy_timeout_seconds_ * 1000u) {
+        this->abandon_update_();
+        return;
+      }
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
      if (now - this->waiting_for_idle_last_print_ >= 1000) {
        ESP_LOGV(TAG, "Waiting for idle in state %s", this->epaper_state_to_string_());
@@ -168,6 +170,20 @@ void EPaperBase::loop() {
  this->process_state_();
 }

+// The busy pin never cleared: give up on this update so later ones are not refused, and make the next one full
+void EPaperBase::abandon_update_() {
+  ESP_LOGE(TAG, "Display stayed busy for %u s in state %s; check the busy pin", (unsigned) this->busy_timeout_seconds_,
+           this->epaper_state_to_string_());
+  this->status_set_warning(LOG_STR("Busy pin timeout"));
+  if (this->state_ == EPaperState::TRANSFER_DATA)
+    this->abort_transfer();
+  // Leave the panel powered down rather than with its high-voltage drivers enabled
+  this->power_off();
+  this->full_update_requested_ = true;
+  this->current_data_index_ = 0;
+  this->set_state_(EPaperState::IDLE);
+}
+
 /**
 * Process the state machine.
 * Typical state sequence:
@@ -242,6 +258,7 @@ void EPaperBase::process_state_() {
      break;
    case EPaperState::DEEP_SLEEP:
      this->deep_sleep();
+      this->status_clear_warning();
      this->set_state_(EPaperState::IDLE);
      ESP_LOGD(TAG, "Display update took %" PRIu32 " ms", millis() - this->update_start_time_);
      break;
@@ -345,6 +362,120 @@ void HOT EPaperBase::draw_pixel_at(int x, int y, Color color) {
  }
 }

+namespace {
+// One source row of an RGB565 block, written into a contiguous 1 bit per pixel buffer. Without SwapAxes the row lies
+// along a buffer row and the bit moves by step; with it the row lies along a bit column and the byte moves by step
+// rows.
+template<bool SwapAxes, bool BigEndianSource>
+void HOT write_rgb565_row(uint8_t *byte, uint8_t mask, int step, size_t row_width, const uint8_t *source, int count,
+                          const Rgb565ToMono &to_mono) {
+  const ptrdiff_t byte_step = SwapAxes ? step * static_cast<ptrdiff_t>(row_width) : 0;
+  for (; count != 0; count--, source += 2) {
+    const uint16_t value = BigEndianSource ? (source[0] << 8) | source[1] : source[0] | (source[1] << 8);
+    if (to_mono(value)) {
+      *byte |= mask;
+    } else {
+      *byte &= ~mask;
+    }
+    if constexpr (SwapAxes) {
+      byte += byte_step;
+    } else if (step > 0) {
+      mask >>= 1;
+      if (mask == 0) {
+        mask = 0x80;
+        byte++;
+      }
+    } else {
+      mask <<= 1;
+      if (mask == 0) {
+        mask = 0x01;
+        byte--;
+      }
+    }
+  }
+}
+}  // namespace
+
+// Each source column maps to one buffer coordinate and each source row to the other, each moving by 1 per pixel, so
+// the visible part of a block and its dirty area are worked out once for the whole block.
+void HOT EPaperBase::draw_rgb565_block_(uint8_t *buffer, int x_start, int y_start, int w, int h, const uint8_t *ptr,
+                                        ColorOrder order, bool big_endian, int x_offset, int y_offset, int x_pad) {
+  const bool swap = this->effective_transform_ & SWAP_XY;
+  const bool mirror_x = this->effective_transform_ & MIRROR_X;
+  const bool mirror_y = this->effective_transform_ & MIRROR_Y;
+  // The buffer axis a source column moves along, and the one a source row moves along
+  const int column_limit = swap ? this->height_ : this->width_;
+  const int row_limit = swap ? this->width_ : this->height_;
+  const bool column_mirrored = swap ? mirror_y : mirror_x;
+  const bool row_mirrored = swap ? mirror_x : mirror_y;
+  const int first_column = std::max(0, -x_start);
+  const int end_column = std::min(w, column_limit - x_start);
+  const int first_row = std::max(0, -y_start);
+  const int end_row = std::min(h, row_limit - y_start);
+  if (first_column >= end_column || first_row >= end_row)
+    return;
+  auto column_to_buffer = [&](int column) {
+    const int u = x_start + column;
+    return column_mirrored ? column_limit - 1 - u : u;
+  };
+  auto row_to_buffer = [&](int row) {
+    const int v = y_start + row;
+    return row_mirrored ? row_limit - 1 - v : v;
+  };
+
+  const int column_low = std::min(column_to_buffer(first_column), column_to_buffer(end_column - 1));
+  const int row_low = std::min(row_to_buffer(first_row), row_to_buffer(end_row - 1));
+  const int columns = end_column - first_column;
+  const int rows = end_row - first_row;
+  const int x_low = swap ? row_low : column_low;
+  const int y_low = swap ? column_low : row_low;
+  const int x_high = x_low + (swap ? rows : columns);
+  const int y_high = y_low + (swap ? columns : rows);
+
+  const Rgb565ToMono to_mono(order);
+  const size_t line_stride = x_offset + w + x_pad;
+  const size_t row_width = this->row_width_;
+  const int step = column_mirrored ? -1 : 1;
+  for (int row = first_row; row != end_row; row++) {
+    const uint8_t *source = ptr + ((y_offset + row) * line_stride + x_offset + first_column) * 2;
+    const int along = column_to_buffer(first_column);
+    const int across = row_to_buffer(row);
+    const int x = swap ? across : along;
+    const int y = swap ? along : across;
+    uint8_t *byte = buffer + y * row_width + x / 8;
+    const uint8_t mask = 0x80u >> (x % 8);
+    if (swap) {
+      if (big_endian) {
+        write_rgb565_row<true, true>(byte, mask, step, row_width, source, columns, to_mono);
+      } else {
+        write_rgb565_row<true, false>(byte, mask, step, row_width, source, columns, to_mono);
+      }
+    } else if (big_endian) {
+      write_rgb565_row<false, true>(byte, mask, step, row_width, source, columns, to_mono);
+    } else {
+      write_rgb565_row<false, false>(byte, mask, step, row_width, source, columns, to_mono);
+    }
+  }
+  this->x_low_ = clamp_at_most(this->x_low_, x_low);
+  this->x_high_ = clamp_at_least(this->x_high_, x_high);
+  this->y_low_ = clamp_at_most(this->y_low_, y_low);
+  this->y_high_ = clamp_at_least(this->y_high_, y_high);
+}
+
+// Writes an RGB565 block of pixels, as LVGL sends them, straight into a 1 bit per pixel buffer that is one block (the
+// usual case): the same result as draw_pixel_at() for each pixel. Anything else goes through draw_pixel_at().
+void HOT EPaperBase::draw_pixels_at(int x_start, int y_start, int w, int h, const uint8_t *ptr, ColorOrder order,
+                                    ColorBitness bitness, bool big_endian, int x_offset, int y_offset, int x_pad) {
+  size_t contiguous_length;
+  uint8_t *contiguous = this->buffer_.get_span(0, contiguous_length);
+  if (!this->buffer_is_mono() || this->get_clipping().is_set() || bitness != COLOR_BITNESS_565 ||
+      contiguous_length != this->buffer_length_) {
+    Display::draw_pixels_at(x_start, y_start, w, h, ptr, order, bitness, big_endian, x_offset, y_offset, x_pad);
+    return;
+  }
+  this->draw_rgb565_block_(contiguous, x_start, y_start, w, h, ptr, order, big_endian, x_offset, y_offset, x_pad);
+}
+
 void EPaperBase::dump_config() {
  LOG_DISPLAY("", "E-Paper SPI", this);
  ESP_LOGCONFIG(TAG,
@@ -107,6 +107,8 @@ class EPaperBase : public Display,
  int get_width() override { return this->effective_transform_ & SWAP_XY ? this->height_ : this->width_; }
  int get_height() override { return this->effective_transform_ & SWAP_XY ? this->width_ : this->height_; }
  void draw_pixel_at(int x, int y, Color color) override;
+  void draw_pixels_at(int x_start, int y_start, int w, int h, const uint8_t *ptr, ColorOrder order,
+                      ColorBitness bitness, bool big_endian, int x_offset, int y_offset, int x_pad) override;
  // Make the next update a full one. Applied when that update starts, so one in progress is not affected.
  void request_full_update() { this->full_update_requested_ = true; }
  // True from the start of an update until the display has refreshed and gone back to sleep.
@@ -125,9 +127,14 @@ class EPaperBase : public Display,
  virtual bool initialise(bool partial);
  void send_init_sequence_(const uint8_t *sequence, size_t length);
  void wait_for_idle_(bool should_wait);
+  void abandon_update_();
  bool init_buffer_(size_t buffer_length);
  void update_effective_transform_();
  bool rotate_coordinates_(int &x, int &y);
+  void draw_rgb565_block_(uint8_t *buffer, int x_start, int y_start, int w, int h, const uint8_t *ptr, ColorOrder order,
+                          bool big_endian, int x_offset, int y_offset, int x_pad);
+  // Whether the buffer holds 1 bit per pixel as draw_pixel_at() writes it, so draw_pixels_at() can write it directly
+  virtual bool buffer_is_mono() const { return false; }

  /**
   * Methods that must be implemented by concrete classes to control the display
@@ -137,6 +144,8 @@ class EPaperBase : public Display,
   * @return true if done, false if it should be called next loop
   */
  virtual bool transfer_data() = 0;
+  // Called when an update is abandoned in the middle of transfer_data(), to release anything it left open
+  virtual void abort_transfer() {}
  /**
   * Refresh the screen after data transfer
   */
@@ -187,18 +196,20 @@ class EPaperBase : public Display,
  // point to the pixel past the last one updated, i.e. may range up to width/height.
  uint16_t x_low_{}, y_low_{}, x_high_{}, y_high_{};

+  uint32_t waiting_for_idle_start_{};
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_VERBOSE
  uint32_t waiting_for_idle_last_print_{};
-  uint32_t waiting_for_idle_start_{};
 #endif
 #if ESPHOME_LOG_LEVEL >= ESPHOME_LOG_LEVEL_DEBUG
  uint32_t update_start_time_{};
 #endif

  // properties with specific initialisers go last
-  EPaperState state_{EPaperState::IDLE};
  uint32_t reset_duration_{10};
+  // Longer than any panel takes to refresh; past it the busy pin is assumed stuck
+  uint16_t busy_timeout_seconds_{120};
  uint8_t full_update_every_{1};
+  EPaperState state_{EPaperState::IDLE};
 };

 }  // namespace esphome::epaper_spi
@@ -15,6 +15,7 @@ class EPaperMono : public EPaperBase {
  }

 protected:
+  bool buffer_is_mono() const override { return true; }
  void refresh_screen(bool partial) override;
  void power_on() override {}
  void power_off() override{};
@@ -58,7 +58,9 @@ bool HOT EPaperSSD1677::transfer_data() {
  // A full update ignores 0x26, and the copy may not hold a real frame yet (first update after
  // boot): send the new frame to both planes.
  const bool send_copy = this->plane_ == 0 && this->update_count_ != 0;
-  const bool direct = send_copy || this->buffer_is_plane();
+  // A mono buffer already holds the frame as a RAM plane does, so it can be sent as it is; a deeper
+  // buffer (the four-level model) returns false and packs the plane in plane_row().
+  const bool direct = send_copy || this->buffer_is_mono();
  const auto &source = send_copy ? this->sent_ : this->buffer_;
  const size_t row_length = this->plane_row_length_();
  const size_t plane_length = row_length * this->height_;
@@ -34,9 +34,6 @@ class EPaperSSD1677 : public EPaperMono {
  void init_comparison_frame_();
  // Bytes in one row of a RAM plane: 8 pixels per byte, whatever the buffer holds.
  size_t plane_row_length_() const { return (this->width_ + 7) / 8; }
-  // Whether the buffer already holds the frame as a RAM plane does, so it can be sent as it is.
-  // A subclass with a deeper buffer returns false and overrides plane_row().
-  virtual bool buffer_is_plane() const { return true; }
  // Row y of the frame as a RAM plane holds it, 1 bit per pixel with 1 = white.
  virtual void plane_row(size_t y, uint8_t *out);
  bool reset() override;
@@ -38,9 +38,9 @@ class EPaperSSD1677Gray4 : public EPaperSSD1677 {
  void draw_pixel_at(int x, int y, Color color) override;

 protected:
+  bool buffer_is_mono() const override { return false; }
  // A partial update if partial updates are enabled and this is not a full one.
  bool is_partial_push_() const { return this->update_count_ != 0 && this->sent_.is_valid(); }
-  bool buffer_is_plane() const override { return false; }
  void plane_row(size_t y, uint8_t *out) override;
  void refresh_screen(bool partial) override;
  bool transfer_data() override;
@@ -364,6 +364,15 @@ bool HOT EPaperT133A01::transfer_data() {
  return true;
 }

+void EPaperT133A01::abort_transfer() {
+  // A data stream is open, with one of the chip selects held low, whenever transfer_data() has started sending rows
+  if (this->current_data_index_ == 0)
+    return;
+  this->disable();
+  this->cs_pin_->digital_write(true);
+  this->cs1_pin_->digital_write(true);
+}
+
 void EPaperT133A01::dump_config() {
  EPaperBase::dump_config();
  LOG_PIN("  CS Pin: ", this->cs_pin_);
@@ -46,6 +46,7 @@ class EPaperT133A01 : public EPaperBase {
  void deep_sleep() override;

  bool transfer_data() override;
+  void abort_transfer() override;

  /**
   * Send a command (and optional data) selecting one or both controllers.
@@ -37,6 +37,7 @@ class EPaperUC8179 final : public EPaperBase {
  }

 protected:
+  bool buffer_is_mono() const override { return true; }
  bool initialise(bool partial) override;
  bool transfer_data() override;
  void refresh_screen(bool partial) override;
@@ -87,6 +87,38 @@ jd79660.extend(
    ),
 )

+# Waveshare 2.13-G (V2 hardware/init revision, PCB marked "rev 2.1" or later)
+#
+# Vendor init derived from vendor sample code
+# <https://github.com/waveshareteam/e-Paper/blob/master/E-paper_Separate_Program/2in13_e-Paper_G/ESP32/EPD_2in13g_V2.cpp>
+# Compatible MIT license, see esphome/LICENSE file.
+#
+# Note: busy pin uses LOW=busy, HIGH=idle. Configure with inverted: true in YAML.
+# Note: panel is 122px wide, but vendor code declares the TRES register as a fixed
+# 124 on this revision. width=124 is declared here (rather than 122) purely so the
+# transferred bytes-per-row matches what the vendor init tells the IC to expect; the
+# extra 2 columns fall outside the visible glass. The model width must equal the
+# TRES value in initsequence, so overriding dimensions: in YAML brings the shear back.
+#
+# fmt: off
+jd79660.extend(
+    "Waveshare-2.13in-G",
+    width=124,
+    height=250,
+
+    initsequence=(
+        (0x61, 0x00, 0x7C, 0x00, 0xFA,),  # TRES: 124x250 fixed (124 = TRES stride value)
+        (0xE9, 0x01,),
+        # Power On (0x04): Must be early part of init seq = Disabled later!
+        (0x04,),
+    ),
+    fast_update=(
+        (0xE0, 0x02,),
+        (0xE6, 0x5A,),
+        (0xA5,),
+    ),
+)
+
 # Waveshare 7.5-H
 #
 # Vendor init derived from vendor sample code
@@ -130,7 +162,7 @@ jd79660.extend(
 # Note: busy pin uses LOW=busy, HIGH=idle.
 #
 # fmt: off
-jd79660.extend(
+gdey0213f51 = jd79660.extend(
    "goodisplay-gdey0213f51-2.13",
    width=128,
    height=250,
@@ -154,3 +186,13 @@ jd79660.extend(
        (0x04,),
    ),
 )
+
+# Waveshare 2.13-G (V1 hardware/init revision, older stock): the same panel and init as the Good
+# Display entry above, byte for byte, so it only adds the name. Vendor sample:
+# <https://github.com/waveshareteam/e-Paper/blob/master/E-paper_Separate_Program/2in13_e-Paper_G/ESP32/EPD_2in13g.cpp>
+# Compatible MIT license, see esphome/LICENSE file.
+#
+# Note: busy pin uses LOW=busy, HIGH=idle. Configure with inverted: true in YAML.
+# Note: width=128 is the TRES value the init sequence programs, not the 122 visible columns; overriding
+# dimensions: in YAML shears the image. Not tested on V1 hardware.
+gdey0213f51.extend("Waveshare-2.13in-G-V1")
@@ -24,3 +24,11 @@ WaveshareB(
    data_rate="10MHz",
    minimum_update_interval="1s",
 )
+
+WaveshareB(
+    "waveshare-2.66in-b",
+    width=152,
+    height=296,
+    data_rate="10MHz",
+    minimum_update_interval="15s",
+)
@@ -6,6 +6,8 @@ import esphome.codegen as cg
 from esphome.components import canbus
 from esphome.components.canbus import CONF_BIT_RATE, CanbusComponent, CanSpeed
 from esphome.components.esp32 import (
+    CONF_MINIMUM_CHIP_REVISION,
+    KEY_ESP32,
    VARIANT_ESP32,
    VARIANT_ESP32C3,
    VARIANT_ESP32C5,
@@ -20,6 +22,8 @@ from esphome.components.esp32 import (
 )
 import esphome.config_validation as cv
 from esphome.const import (
+    CONF_ADVANCED,
+    CONF_FRAMEWORK,
    CONF_ID,
    CONF_MODE,
    CONF_RX_PIN,
@@ -27,6 +31,7 @@ from esphome.const import (
    CONF_TX_PIN,
    CONF_TX_QUEUE_LEN,
 )
+import esphome.final_validate as fv
 from esphome.types import ConfigType

 CODEOWNERS = ["@Sympatron"]
@@ -49,6 +54,7 @@ CAN_MODES = {
 # See ESP-IDF Programming Guide --> API Reference --> Two-Wire Automotive Interface (TWAI)

 CAN_SPEEDS_ESP32 = {
+    "20KBPS": CanSpeed.CAN_20KBPS,
    "25KBPS": CanSpeed.CAN_25KBPS,
    "50KBPS": CanSpeed.CAN_50KBPS,
    "100KBPS": CanSpeed.CAN_100KBPS,
@@ -114,6 +120,22 @@ CONFIG_SCHEMA = canbus.CANBUS_SCHEMA.extend(
 )


+def _final_validate(config: ConfigType) -> None:
+    if get_esp32_variant() == VARIANT_ESP32 and config[CONF_BIT_RATE] == "20KBPS":
+        esp32_config = fv.full_config.get()[KEY_ESP32]
+        min_revision = esp32_config[CONF_FRAMEWORK][CONF_ADVANCED].get(
+            CONF_MINIMUM_CHIP_REVISION
+        )
+        if min_revision is None or min_revision < "2.0":
+            raise cv.Invalid(
+                "20KBPS on ESP32 requires esp32.framework.advanced.minimum_chip_revision: '2.0' or higher",
+                path=[CONF_BIT_RATE],
+            )
+
+
+FINAL_VALIDATE_SCHEMA = _final_validate
+
+
 def get_default_tx_enqueue_timeout(bit_rate: str) -> int:
    bit_rate_numeric = canbus.get_rate(bit_rate)
    bits_per_packet = 140  # ~max CAN message length
@@ -33,6 +33,10 @@ static bool get_bitrate(canbus::CanSpeed bitrate, twai_timing_config_t *t_config
    case canbus::CAN_16KBPS:
      *t_config = (twai_timing_config_t) TWAI_TIMING_CONFIG_16KBITS();
      return true;
+#endif
+#if defined(USE_ESP32_VARIANT_ESP32C3) || defined(USE_ESP32_VARIANT_ESP32C6) || defined(USE_ESP32_VARIANT_ESP32C61) || \
+    defined(USE_ESP32_VARIANT_ESP32H2) || defined(USE_ESP32_VARIANT_ESP32P4) || defined(USE_ESP32_VARIANT_ESP32S2) || \
+    defined(USE_ESP32_VARIANT_ESP32S3) || (defined(USE_ESP32_VARIANT_ESP32) && CONFIG_ESP32_REV_MIN_FULL >= 200)
    case canbus::CAN_20KBPS:
      *t_config = (twai_timing_config_t) TWAI_TIMING_CONFIG_20KBITS();
      return true;
@@ -3,11 +3,12 @@
 #include "esphome/core/component.h"
 #include "esphome/components/sensor/sensor.h"
 #include "esphome/components/i2c/i2c.h"
+#include "esphome/core/log.h"
 #include <deque>

 namespace esphome::ezo {

-static const char *const TAG = "ezo.sensor";
+ESPHOME_LOG_TAG(TAG, "ezo.sensor");

 enum EzoCommandType : uint8_t {
  EZO_READ = 0,
@@ -330,7 +330,9 @@ async def write_image(
        if byte_order is not None:
            # Check for valid type has already been done in validate_settings
            encoder.set_big_endian(byte_order == "BIG_ENDIAN")
-        pixels = encoder.convert(image.resize((width, height)), path).getdata()
+        pixels = encoder.convert(
+            image.resize((width, height)), path
+        ).get_flattened_data()
        for row in range(height):
            for col in range(width):
                encoder.encode(pixels[row * width + col])
@@ -3,6 +3,7 @@
 #include "esphome/components/climate/climate.h"
 #include "esphome/components/uart/uart.h"
 #include "esphome/core/helpers.h"
+#include "esphome/core/progmem.h"
 #include "hon_climate.h"
 #include "hon_packet.h"

@@ -20,6 +21,27 @@ constexpr size_t ALARM_STATUS_REQUEST_INTERVAL_MS = 600000;
 const uint8_t ONE_BUF[] = {0x00, 0x01};
 const uint8_t ZERO_BUF[] = {0x00, 0x00};

+// Alarm texts indexed by alarm code; the last entry is the fallback for unknown codes
+PROGMEM_STRING_TABLE(
+    HonAlarmMessages, "Outdoor module failure", "Outdoor defrost sensor failure",
+    "Outdoor compressor exhaust sensor failure", "Outdoor EEPROM abnormality", "Indoor coil sensor failure",
+    "Indoor-outdoor communication failure", "Power supply overvoltage protection",
+    "Communication failure between panel and indoor unit", "Outdoor compressor overheat protection",
+    "Outdoor environmental sensor abnormality", "Full water protection", "Indoor EEPROM failure",
+    "Outdoor out air sensor failure", "CBD and module communication failure", "Indoor DC fan failure",
+    "Outdoor DC fan failure", "Door switch failure", "Dust filter needs cleaning reminder", "Water shortage protection",
+    "Humidity sensor failure", "Indoor temperature sensor failure", "Manipulator limit failure",
+    "Indoor PM2.5 sensor failure", "Outdoor PM2.5 sensor failure", "Indoor heating overload/high load alarm",
+    "Outdoor AC current protection", "Outdoor compressor operation abnormality", "Outdoor DC current protection",
+    "Outdoor no-load failure", "CT current abnormality", "Indoor cooling freeze protection",
+    "High and low pressure protection", "Compressor out air temperature is too high",
+    "Outdoor evaporator sensor failure", "Outdoor cooling overload", "Water pump drainage failure",
+    "Three-phase power supply failure", "Four-way valve failure", "External alarm/scraper flow switch failure",
+    "Temperature cutoff protection alarm", "Different mode operation failure", "Electronic expansion valve failure",
+    "Dual heat source sensor Tw failure", "Communication failure with the wired controller",
+    "Indoor unit address duplication failure", "50Hz zero crossing failure", "Outdoor unit failure",
+    "Formaldehyde sensor failure", "VOC sensor failure", "CO2 sensor failure", "Firewall failure", "Unknown");
+
 HonClimate::HonClimate()
    : cleaning_status_(CleaningState::NO_CLEANING), got_valid_outdoor_temp_(false), active_alarms_{0x00, 0x00, 0x00,
                                                                                                   0x00, 0x00, 0x00,
@@ -687,9 +709,17 @@ void HonClimate::process_alarm_message_(const uint8_t *packet, uint8_t size, boo
            if ((packet[2 + i] & alarm_bit) != (this->active_alarms_[i] & alarm_bit)) {
              bool alarm_status = (packet[2 + i] & alarm_bit) != 0;
              int log_level = alarm_status ? ESPHOME_LOG_LEVEL_WARN : ESPHOME_LOG_LEVEL_INFO;
-              const char *alarm_message = alarm_code < esphome::haier::hon_protocol::HON_ALARM_COUNT
-                                              ? esphome::haier::hon_protocol::HON_ALARM_MESSAGES[alarm_code].c_str()
-                                              : "Unknown";
+#ifdef USE_ESP8266
+              // Static so a delayed on_alarm automation can still read it, but only until the next
+              // alarm change, including a later one in this packet; `code` stays correct
+              static char alarm_message[HonAlarmMessages::MAX_LENGTH + 1];
+              ESPHOME_strncpy_P(alarm_message,
+                                reinterpret_cast<const char *>(
+                                    HonAlarmMessages::get_progmem_str(alarm_code, HonAlarmMessages::LAST_INDEX)),
+                                sizeof(alarm_message));
+#else
+              const char *alarm_message = HonAlarmMessages::get_progmem_str(alarm_code, HonAlarmMessages::LAST_INDEX);
+#endif
              esp_log_printf_(log_level, TAG, __LINE__, "Alarm %s (%d): %s", alarm_status ? "activated" : "deactivated",
                              alarm_code, alarm_message);
              if (alarm_status) {
@@ -197,60 +197,4 @@ enum class SubcommandsControl : uint16_t {
                                  // content: all values like in status packet)
 };

-const std::string HON_ALARM_MESSAGES[] = {
-    "Outdoor module failure",
-    "Outdoor defrost sensor failure",
-    "Outdoor compressor exhaust sensor failure",
-    "Outdoor EEPROM abnormality",
-    "Indoor coil sensor failure",
-    "Indoor-outdoor communication failure",
-    "Power supply overvoltage protection",
-    "Communication failure between panel and indoor unit",
-    "Outdoor compressor overheat protection",
-    "Outdoor environmental sensor abnormality",
-    "Full water protection",
-    "Indoor EEPROM failure",
-    "Outdoor out air sensor failure",
-    "CBD and module communication failure",
-    "Indoor DC fan failure",
-    "Outdoor DC fan failure",
-    "Door switch failure",
-    "Dust filter needs cleaning reminder",
-    "Water shortage protection",
-    "Humidity sensor failure",
-    "Indoor temperature sensor failure",
-    "Manipulator limit failure",
-    "Indoor PM2.5 sensor failure",
-    "Outdoor PM2.5 sensor failure",
-    "Indoor heating overload/high load alarm",
-    "Outdoor AC current protection",
-    "Outdoor compressor operation abnormality",
-    "Outdoor DC current protection",
-    "Outdoor no-load failure",
-    "CT current abnormality",
-    "Indoor cooling freeze protection",
-    "High and low pressure protection",
-    "Compressor out air temperature is too high",
-    "Outdoor evaporator sensor failure",
-    "Outdoor cooling overload",
-    "Water pump drainage failure",
-    "Three-phase power supply failure",
-    "Four-way valve failure",
-    "External alarm/scraper flow switch failure",
-    "Temperature cutoff protection alarm",
-    "Different mode operation failure",
-    "Electronic expansion valve failure",
-    "Dual heat source sensor Tw failure",
-    "Communication failure with the wired controller",
-    "Indoor unit address duplication failure",
-    "50Hz zero crossing failure",
-    "Outdoor unit failure",
-    "Formaldehyde sensor failure",
-    "VOC sensor failure",
-    "CO2 sensor failure",
-    "Firewall failure",
-};
-
-constexpr size_t HON_ALARM_COUNT = sizeof(HON_ALARM_MESSAGES) / sizeof(HON_ALARM_MESSAGES[0]);
-
 }  // namespace esphome::haier::hon_protocol
@@ -3,4 +3,5 @@ DOMAIN = "ili9xxx"
 DEPRECATED_COMPONENT = """
 The 'ili9xxx' component is deprecated and no new models will be added to it.
 New model PRs should target the newer and more performant 'mipi_spi' component.
+It will be removed in ESPHome 2027.5.0.
 """
@@ -220,8 +220,10 @@ FINAL_VALIDATE_SCHEMA = final_validate


 async def to_code(config: ConfigType) -> None:
+    # Remove before 2027.5.0
    LOGGER.warning(
-        "The 'ili9xxx' component is deprecated, it is recommended to use 'mipi_spi' instead."
+        "The 'ili9xxx' component is deprecated and will be removed in ESPHome 2027.5.0, "
+        "migrate to 'mipi_spi' instead."
    )
    rhs = MODELS[config[CONF_MODEL]].new()
    var = cg.Pvariable(config[CONF_ID], rhs)
@@ -2,12 +2,13 @@
 #include "esphome/components/spi/spi.h"
 #include "esphome/components/display/display_buffer.h"
 #include "esphome/components/display/display_color_utils.h"
+#include "esphome/core/log.h"
 #include "ili9xxx_defines.h"
 #include "ili9xxx_init.h"

 namespace esphome::ili9xxx {

-static const char *const TAG = "ili9xxx";
+ESPHOME_LOG_TAG(TAG, "ili9xxx");
 const size_t ILI9XXX_TRANSFER_BUFFER_SIZE = 126;  // ensure this is divisible by 6

 enum ILI9XXXColorMode {
@@ -891,12 +891,10 @@ static uint8_t color_to_nibble(const Color &color) {
  if (color.raw_32 == 0xFFFFFFFF)
    return 0x0F;  // white

-  // Derive luma from RGB using Rec.601 weights (0.299/0.587/0.114, scaled by
-  // 256). Rec.601 is the standard for converting SDR images to grayscale and
-  // spreads saturated colours across the mid-range; Rec.709 instead crams them
-  // against white/black where the 16 panel levels are hard to tell apart.
-  auto luma = static_cast<uint8_t>((77u * color.r + 150u * color.g + 29u * color.b + 128u) >> 8);
-  return quantize_8bit_to_nibble(luma);
+  // Rec.601 luma is the standard for converting SDR images to grayscale and spreads saturated colours
+  // across the mid-range; Rec.709 instead crams them against white/black where the 16 panel levels are
+  // hard to tell apart.
+  return quantize_8bit_to_nibble(display::rec601_luma(color));
 }

 // 4x4 ordered (Bayer) dither threshold over the weighted-luma range (0..65535).
@@ -214,7 +214,7 @@ enum class Orientation : uint8_t {
 };

 class LvglComponent final : public PollingComponent {
-  constexpr static const char *const TAG = "lvgl";
+  constexpr static const char *const TAG = "lvgl";  // NOLINT: lvgl does not build for ESP8266

 public:
  LvglComponent(std::vector<display::Display *> displays, float buffer_frac, bool full_refresh, int draw_rounding,
@@ -19,7 +19,7 @@ using alloc_string_t = std::basic_string<char, std::char_traits<char>, RAMAlloca
 * @tparam V The type of the value in the mapping. Should be a basic type or pointer.
 */

-static const char *const TAG = "mapping";
+ESPHOME_LOG_TAG(TAG, "mapping");

 template<typename K, typename V> class Mapping {
 public:
@@ -3,7 +3,9 @@ from esphome.components.esp32 import add_idf_component, add_idf_sdkconfig_option
 from esphome.config_helpers import filter_source_files_from_platform, get_logger_level
 import esphome.config_validation as cv
 from esphome.const import (
+    CONF_API,
    CONF_DISABLED,
+    CONF_ETHERNET,
    CONF_ID,
    CONF_OPENTHREAD,
    CONF_PORT,
@@ -285,6 +287,23 @@ async def to_code(config: ConfigType) -> None:
    var = cg.new_Pvariable(config[CONF_ID])
    await cg.register_component(var, config)

+    # With both wifi and ethernet, the _esphomelib "network" TXT value follows the
+    # connected interface. OpenThread hands its services to the SRP client once,
+    # so it keeps the fixed value.
+    if (
+        CONF_API in CORE.config
+        and CONF_WIFI in CORE.config
+        and CONF_ETHERNET in CORE.config
+        and CONF_OPENTHREAD not in CORE.config
+    ):
+        from esphome.components import network
+
+        cg.add_define("USE_MDNS_DYNAMIC_NETWORK_TXT")
+        # Where the network component tracks the default route (ESP32), follow
+        # it; otherwise mdns checks the connected interface every second.
+        if await network.register_active_interface_listener(var):
+            cg.add_define("USE_MDNS_ACTIVE_INTERFACE_LISTENER")
+
    for service in config[CONF_SERVICES]:
        txt_records = [
            await _mdns_txt_record_templated(var, txt_key, txt_value)
@@ -20,6 +20,10 @@
 #ifdef USE_DASHBOARD_IMPORT
 #include "esphome/components/dashboard_import/dashboard_import.h"
 #endif
+#ifdef USE_MDNS_DYNAMIC_NETWORK_TXT
+#include "esphome/components/ethernet/ethernet_component.h"
+#include "esphome/components/wifi/wifi_component.h"
+#endif

 namespace esphome::mdns {

@@ -39,6 +43,57 @@ MDNS_STATIC_CONST_CHAR(SERVICE_TCP, "_tcp");
 // Wrap build-time defines into flash storage
 MDNS_STATIC_CONST_CHAR(VALUE_VERSION, ESPHOME_VERSION);

+#ifdef USE_MDNS_DYNAMIC_NETWORK_TXT
+MDNS_STATIC_CONST_CHAR(NETWORK_WIFI, "wifi");
+MDNS_STATIC_CONST_CHAR(NETWORK_ETHERNET, "ethernet");
+
+// Same order as the default route in NetworkComponent::loop()
+const char *MDNSComponent::connected_network_() const {
+  const bool ethernet = ethernet::global_eth_component->is_connected();
+  const bool wifi = wifi::global_wifi_component->is_connected();
+#ifdef USE_NETWORK_PRIMARY_INTERFACE_WIFI
+  if (wifi)
+    return NETWORK_WIFI;
+#endif
+  if (ethernet)
+    return NETWORK_ETHERNET;
+  if (wifi)
+    return NETWORK_WIFI;
+  return nullptr;
+}
+
+void MDNSComponent::update_network_txt_(const char *network) {
+  // With no interface connected, keep the last value instead of flapping to wifi
+  if (this->network_txt_ == nullptr || network == nullptr || network == this->network_txt_)
+    return;
+  if (!this->publish_network_txt_(network)) {
+    // The _esphomelib service is missing, so a retry would fail too
+    this->network_txt_ = nullptr;
+    return;
+  }
+  ESP_LOGD(TAG, "Network TXT: %s", network);
+  this->network_txt_ = network;
+#ifdef USE_MDNS_STORE_SERVICES
+  this->network_record_->value = MDNS_STR(network);
+#endif
+}
+
+#ifdef USE_MDNS_ACTIVE_INTERFACE_LISTENER
+void MDNSComponent::on_active_interface(network::NetworkInterface interface) {
+  switch (interface) {
+    case network::NetworkInterface::NETWORK_INTERFACE_ETHERNET:
+      this->update_network_txt_(NETWORK_ETHERNET);
+      break;
+    case network::NetworkInterface::NETWORK_INTERFACE_WIFI:
+      this->update_network_txt_(NETWORK_WIFI);
+      break;
+    default:
+      break;
+  }
+}
+#endif
+#endif
+
 void MDNSComponent::setup_buffers_and_register_(PlatformRegisterFn platform_register) {
 #ifdef USE_MDNS_STORE_SERVICES
  auto &services = this->services_;
@@ -160,7 +215,15 @@ void MDNSComponent::compile_records_(StaticVector<MDNSService, MDNS_SERVICE_COUN

    txt_records.push_back({MDNS_STR(TXT_BOARD), MDNS_STR(VALUE_BOARD)});

-#if defined(USE_WIFI)
+#ifdef USE_MDNS_DYNAMIC_NETWORK_TXT
+    const char *network = this->connected_network_();
+    this->network_txt_ = network != nullptr ? network : NETWORK_WIFI;
+    txt_records.push_back({MDNS_STR(TXT_NETWORK), MDNS_STR(this->network_txt_)});
+#ifdef USE_MDNS_STORE_SERVICES
+    // services is services_ here, which never reallocates
+    this->network_record_ = &txt_records.back();
+#endif
+#elif defined(USE_WIFI)
    MDNS_STATIC_CONST_CHAR(NETWORK_WIFI, "wifi");
    txt_records.push_back({MDNS_STR(TXT_NETWORK), MDNS_STR(NETWORK_WIFI)});
 #elif defined(USE_ETHERNET)
@@ -32,6 +32,13 @@
 #define USE_MDNS_DEVICE_INFO_TXT
 #endif

+// USE_MDNS_DYNAMIC_NETWORK_TXT (wifi + ethernet + api): the _esphomelib "network" TXT value follows the
+// connected interface. With USE_MDNS_ACTIVE_INTERFACE_LISTENER (ESP32) the network component reports
+// default route changes; otherwise the value is checked every NETWORK_TXT_CHECK_INTERVAL_MS.
+#ifdef USE_MDNS_ACTIVE_INTERFACE_LISTENER
+#include "esphome/components/network/network_component.h"
+#endif
+
 namespace esphome::mdns {

 // Helper struct that identifies strings that may be stored in flash storage (similar to LogString)
@@ -73,6 +80,10 @@ class MDNSComponent final : public Component
    ,
                            public ethernet::EthernetIPStateListener
 #endif
+#ifdef USE_MDNS_ACTIVE_INTERFACE_LISTENER
+    ,
+                            public network::ActiveInterfaceListener
+#endif
 {
 public:
  void setup() override;
@@ -134,6 +145,10 @@ class MDNSComponent final : public Component
  }
 #endif

+#ifdef USE_MDNS_ACTIVE_INTERFACE_LISTENER
+  void on_active_interface(network::NetworkInterface interface) override;
+#endif
+
 #ifdef USE_MDNS_EVENT_DRIVEN_POLLING
  void on_ip_state(const network::IPAddresses &ips, const network::IPAddress &dns1,
                   const network::IPAddress &dns2) override;
@@ -150,6 +165,22 @@ class MDNSComponent final : public Component

  void setup_buffers_and_register_(PlatformRegisterFn platform_register);

+#ifdef USE_MDNS_DYNAMIC_NETWORK_TXT
+  static constexpr uint32_t NETWORK_TXT_CHECK_INTERVAL_MS = 1000;
+  /// The first connected interface in network: priority order ("ethernet" or "wifi"), else nullptr.
+  const char *connected_network_() const;
+  /// Publish network as the "network" TXT value if it changed; nullptr keeps the current value.
+  void update_network_txt_(const char *network);
+  /// Platform-specific: replace the "network" TXT value of the registered _esphomelib service.
+  bool publish_network_txt_(const char *network);
+  /// Advertised value; nullptr until the _esphomelib service is registered, and after a failed publish.
+  const char *network_txt_{nullptr};
+#ifdef USE_MDNS_STORE_SERVICES
+  /// The "network" record in services_, kept in step with network_txt_.
+  MDNSTXTRecord *network_record_{nullptr};
+#endif
+#endif
+
 #ifdef USE_MDNS_DYNAMIC_TXT
  /// Storage for runtime-generated TXT values from user lambdas
  /// Pre-sized at compile time via MDNS_DYNAMIC_TXT_COUNT to avoid heap allocations.
@@ -89,7 +89,25 @@ bool MDNSComponent::set_service_enabled(const char *service_type, const char *pr
 }
 #endif  // USE_MDNS_SUPPORTS_ENABLE_DISABLE && !USE_OPENTHREAD

-void MDNSComponent::setup() { this->setup_buffers_and_register_(register_esp32); }
+#ifdef USE_MDNS_DYNAMIC_NETWORK_TXT
+bool MDNSComponent::publish_network_txt_(const char *network) {
+  // ESP-IDF copies the value and announces the changed record
+  esp_err_t err = mdns_service_txt_item_set("_esphomelib", "_tcp", "network", network);
+  if (err != ESP_OK) {
+    ESP_LOGW(TAG, "Failed to update network TXT: %s", esp_err_to_name(err));
+    return false;
+  }
+  return true;
+}
+#endif
+
+void MDNSComponent::setup() {
+  this->setup_buffers_and_register_(register_esp32);
+#if defined(USE_MDNS_DYNAMIC_NETWORK_TXT) && !defined(USE_MDNS_ACTIVE_INTERFACE_LISTENER)
+  this->set_interval(NETWORK_TXT_CHECK_INTERVAL_MS,
+                     [this]() { this->update_network_txt_(this->connected_network_()); });
+#endif
+}

 void MDNSComponent::on_shutdown() {
 #ifndef USE_OPENTHREAD
@@ -46,7 +46,27 @@ void MDNSComponent::start_polling_window_() {
 }
 #endif

+#ifdef USE_MDNS_DYNAMIC_NETWORK_TXT
+ESPHOME_LOG_TAG(TAG, "mdns");
+
+bool MDNSComponent::publish_network_txt_(const char *network) {
+  // LEAmDNS replaces the value of an existing key; announce() sends the change
+  if (!MDNS.addServiceTxt("esphomelib", "tcp", "network", network)) {
+    ESP_LOGW(TAG, "Failed to update network TXT");
+    return false;
+  }
+  MDNS.announce();
+  this->start_polling_window_();
+  return true;
+}
+#endif
+
 void MDNSComponent::setup() {
+#ifdef USE_MDNS_DYNAMIC_NETWORK_TXT
+  // No-op until the first IP-up event registers the services
+  this->set_interval(NETWORK_TXT_CHECK_INTERVAL_MS,
+                     [this]() { this->update_network_txt_(this->connected_network_()); });
+#endif
  // arduino-pico stubs out LwipIntf::stateUpCB (the netif status callback LEAmDNS uses
  // on ESP8266 for auto-restart), so we must drive begin()/notifyAPChange() from our
  // own IP state listener. Both WiFi and Ethernet have the same listener signature —
@@ -5,7 +5,7 @@

 namespace esphome::midea::ac {

-const char *const Constants::TAG = "midea";
+const char Constants::TAG[] PROGMEM = "midea";
 const char *const Constants::FREEZE_PROTECTION = "Freeze Protection";
 const char *const Constants::SILENT = "Silent";
 const char *const Constants::TURBO = "Turbo";
@@ -17,7 +17,7 @@ using MideaPreset = dudanov::midea::ac::Preset;

 class Constants {
 public:
-  static const char *const TAG;
+  static const char TAG[];  // PROGMEM, like ESPHOME_LOG_TAG
  static const char *const FREEZE_PROTECTION;
  static const char *const SILENT;
  static const char *const TURBO;
@@ -127,6 +127,19 @@ ClimateTraits AirConditioner::traits() {
  return traits;
 }

+#ifdef USE_REMOTE_TRANSMITTER
+static const LogString *display_control_str(DisplayControl control) {
+  switch (control) {
+    case DisplayControl::DISPLAY_CONTROL_UART:
+      return LOG_STR("UART");
+    case DisplayControl::DISPLAY_CONTROL_IR:
+      return LOG_STR("IR");
+    default:
+      return LOG_STR("AUTO");
+  }
+}
+#endif
+
 void AirConditioner::dump_config() {
  ESP_LOGCONFIG(Constants::TAG,
                "MideaDongle:\n"
@@ -135,7 +148,10 @@ void AirConditioner::dump_config() {
                "  [x] Request attempts: %d",
                this->base_.getPeriod(), this->base_.getTimeout(), this->base_.getNumAttempts());
 #ifdef USE_REMOTE_TRANSMITTER
-  ESP_LOGCONFIG(Constants::TAG, "  [x] Using RemoteTransmitter");
+  ESP_LOGCONFIG(Constants::TAG,
+                "  [x] Using RemoteTransmitter\n"
+                "  [x] Display control: %s",
+                LOG_STR_ARG(display_control_str(this->display_control_)));
 #endif
  if (this->base_.getAutoconfStatus() == dudanov::midea::AUTOCONF_OK) {
    this->base_.getCapabilities().dump();
@@ -183,16 +199,20 @@ void AirConditioner::do_swing_step() {
 }

 void AirConditioner::do_display_toggle() {
-  if (this->base_.getCapabilities().supportLightControl()) {
-    this->base_.displayToggle();
-  } else {
 #ifdef USE_REMOTE_TRANSMITTER
+  // AUTO uses IR unless the appliance reports light control over UART. Without a transmitter
+  // built in, every setting sends the UART request: Mundoclima, Rotenso and others accept it
+  // without advertising it in the 0xB5 capabilities report.
+  const bool use_ir = this->display_control_ == DisplayControl::DISPLAY_CONTROL_IR ||
+                      (this->display_control_ == DisplayControl::DISPLAY_CONTROL_AUTO &&
+                       !this->base_.getCapabilities().supportLightControl());
+  if (use_ir) {
    IrSpecialData data(0x08);
    this->transmitter_.transmit(data);
-#else
-    ESP_LOGW(Constants::TAG, "Action needs remote_transmitter component");
-#endif
+    return;
  }
+#endif
+  this->base_.displayToggle();
 }

 }  // namespace esphome::midea::ac
@@ -21,12 +21,20 @@ using climate::ClimateModeMask;
 using climate::ClimateSwingModeMask;
 using climate::ClimatePresetMask;

+// How the display toggle reaches the appliance; the AUTO rules are in do_display_toggle()
+enum class DisplayControl : uint8_t {
+  DISPLAY_CONTROL_UART,  // always the UART request
+  DISPLAY_CONTROL_AUTO,  // UART when the appliance reports it or no transmitter is built in, else IR
+  DISPLAY_CONTROL_IR,    // always the IR remote, needs a transmitter
+};
+
 class AirConditioner final : public ApplianceBase<dudanov::midea::ac::AirConditioner>, public climate::Climate {
 public:
  void dump_config() override;
  void set_outdoor_temperature_sensor(Sensor *sensor) { this->outdoor_sensor_ = sensor; }
  void set_humidity_setpoint_sensor(Sensor *sensor) { this->humidity_sensor_ = sensor; }
  void set_power_sensor(Sensor *sensor) { this->power_sensor_ = sensor; }
+  void set_display_control(DisplayControl control) { this->display_control_ = control; }
  void on_status_change() override;

  /* ############### */
@@ -54,6 +62,7 @@ class AirConditioner final : public ApplianceBase<dudanov::midea::ac::AirConditi
  ClimateSwingModeMask supported_swing_modes_{};
  ClimatePresetMask supported_presets_{};
  bool frost_protection_set_{false};
+  DisplayControl display_control_{DisplayControl::DISPLAY_CONTROL_AUTO};
  Sensor *outdoor_sensor_{nullptr};
  Sensor *humidity_sensor_{nullptr};
  Sensor *power_sensor_{nullptr};
@@ -33,15 +33,18 @@ from esphome.const import (
    UNIT_WATT,
 )
 from esphome.core import CORE
+from esphome.types import ConfigType

 CODEOWNERS = ["@dudanov"]
 DEPENDENCIES = ["climate", "uart"]
 AUTO_LOAD = ["sensor"]
 CONF_POWER_USAGE = "power_usage"
 CONF_HUMIDITY_SETPOINT = "humidity_setpoint"
+CONF_DISPLAY_CONTROL = "display_control"
 midea_ac_ns = cg.esphome_ns.namespace("midea").namespace("ac")
 AirConditioner = midea_ac_ns.class_("AirConditioner", climate.Climate, cg.Component)
 Capabilities = midea_ac_ns.namespace("Constants")
+DisplayControl = midea_ac_ns.enum("DisplayControl", is_class=True)


 def templatize(value):
@@ -82,11 +85,29 @@ CUSTOM_PRESETS = {
    "FREEZE_PROTECTION": Capabilities.FREEZE_PROTECTION,
 }

+# How midea_ac.display_toggle reaches the appliance; see do_display_toggle() for the AUTO rules
+DISPLAY_CONTROLS = {
+    "UART": DisplayControl.DISPLAY_CONTROL_UART,
+    "AUTO": DisplayControl.DISPLAY_CONTROL_AUTO,
+    "IR": DisplayControl.DISPLAY_CONTROL_IR,
+}
+
 validate_modes = cv.enum(ALLOWED_CLIMATE_MODES, upper=True)
 validate_presets = cv.enum(ALLOWED_CLIMATE_PRESETS, upper=True)
 validate_swing_modes = cv.enum(ALLOWED_CLIMATE_SWING_MODES, upper=True)
 validate_custom_fan_modes = cv.enum(CUSTOM_FAN_MODES, upper=True)
 validate_custom_presets = cv.enum(CUSTOM_PRESETS, upper=True)
+validate_display_control = cv.enum(DISPLAY_CONTROLS, upper=True)
+
+
+def validate_display_control_with_transmitter(config: ConfigType) -> ConfigType:
+    """`display_control: IR` needs a `remote_transmitter` to send through; UART and AUTO do not."""
+    if config.get(CONF_DISPLAY_CONTROL) == "IR" and CONF_TRANSMITTER_ID not in config:
+        raise cv.Invalid(
+            f"'{CONF_DISPLAY_CONTROL}: IR' requires '{CONF_TRANSMITTER_ID}' to be set"
+        )
+    return config
+

 CONFIG_SCHEMA = cv.All(
    climate.climate_schema(AirConditioner)
@@ -100,6 +121,7 @@ CONFIG_SCHEMA = cv.All(
            ),
            cv.Optional(CONF_BEEPER, default=False): cv.boolean,
            cv.Optional(CONF_AUTOCONF, default=True): cv.boolean,
+            cv.Optional(CONF_DISPLAY_CONTROL, default="AUTO"): validate_display_control,
            cv.Optional(CONF_SUPPORTED_MODES): cv.ensure_list(validate_modes),
            cv.Optional(CONF_SUPPORTED_SWING_MODES): cv.ensure_list(
                validate_swing_modes
@@ -134,6 +156,7 @@ CONFIG_SCHEMA = cv.All(
    )
    .extend(uart.UART_DEVICE_SCHEMA)
    .extend(cv.COMPONENT_SCHEMA),
+    validate_display_control_with_transmitter,
    cv.only_on(
        [
            PLATFORM_ESP32,
@@ -204,6 +227,7 @@ async def to_code(config):
        cg.add(var.set_transmitter(transmitter_))
    cg.add(var.set_beeper_feedback(config[CONF_BEEPER]))
    cg.add(var.set_autoconf(config[CONF_AUTOCONF]))
+    cg.add(var.set_display_control(config[CONF_DISPLAY_CONTROL]))
    if CONF_SUPPORTED_MODES in config:
        cg.add(var.set_supported_modes(config[CONF_SUPPORTED_MODES]))
    if CONF_SUPPORTED_SWING_MODES in config:
@@ -18,7 +18,7 @@

 namespace esphome::mipi_dsi {

-constexpr static const char *const TAG = "display.mipi_dsi";
+ESPHOME_LOG_TAG(TAG, "display.mipi_dsi");
 const uint8_t SW_RESET_CMD = 0x01;
 const uint8_t SLEEP_OUT = 0x11;
 const uint8_t SDIR_CMD = 0xC7;
@@ -2,6 +2,7 @@

 #if defined(USE_ESP32_VARIANT_ESP32S3) || defined(USE_ESP32_VARIANT_ESP32P4) || defined(USE_ESP32_VARIANT_ESP32S31)
 #include "esphome/core/gpio.h"
+#include "esphome/core/log.h"
 #include "esphome/components/display/display.h"
 #include <esp_lcd_panel_rgb.h>
 #ifdef USE_SPI
@@ -10,7 +11,7 @@

 namespace esphome::mipi_rgb {

-constexpr static const char *const TAG = "display.mipi_rgb";
+ESPHOME_LOG_TAG(TAG, "display.mipi_rgb");
 const uint8_t SW_RESET_CMD = 0x01;
 const uint8_t SLEEP_OUT = 0x11;
 const uint8_t SDIR_CMD = 0xC7;
@@ -7,10 +7,11 @@
 #include "esphome/components/display/display_color_utils.h"
 #include "esphome/core/hal.h"
 #include "esphome/core/helpers.h"
+#include "esphome/core/log.h"

 namespace esphome::mipi_spi {

-constexpr static const char *const TAG = "display.mipi_spi";
+ESPHOME_LOG_TAG(TAG, "display.mipi_spi");

 // Maximum bytes to log for commands (truncated if larger)
 static constexpr size_t MIPI_SPI_MAX_CMD_LOG_BYTES = 64;
@@ -100,6 +100,37 @@ if (

 network_ns = cg.esphome_ns.namespace("network")
 NetworkComponent = network_ns.class_("NetworkComponent", cg.Component)
+
+_request_active_interface_listener_slot = cg.slot_counter(
+    "NETWORK_ACTIVE_INTERFACE_LISTENER_COUNT"
+)
+
+
+def has_active_interface() -> bool:
+    """Return True when NetworkComponent tracks the interface holding the default route.
+
+    That is ESP32 with more than one interface in 'network: priority:', the same
+    condition that emits USE_NETWORK_DEFAULT_ROUTE.
+    """
+    return CORE.is_esp32 and len(CORE.config.get(DOMAIN, {}).get(CONF_PRIORITY, [])) > 1
+
+
+async def register_active_interface_listener(listener: cg.MockObj) -> bool:
+    """Register an ActiveInterfaceListener with the NetworkComponent.
+
+    The listener is notified from the main loop when the interface holding the
+    default route changes. Returns False, and registers nothing, when
+    has_active_interface() is False; the caller then needs another way to
+    follow interface changes.
+    """
+    if not has_active_interface():
+        return False
+    _request_active_interface_listener_slot()
+    network = await cg.get_variable(CORE.config[DOMAIN][CONF_ID])
+    cg.add(network.add_active_interface_listener(listener))
+    return True
+
+
 IPAddress = network_ns.class_("IPAddress")


@@ -402,7 +433,7 @@ async def to_code(config: ConfigType) -> None:
        # frameworks build from source.
        # The ethernet/wifi-only assumption behind the arbitration is enforced in
        # _final_validate() so a future unsupported type fails as a config error.
-        if len(priority_list) > 1 and CORE.is_esp32:
+        if has_active_interface():
            cg.add_define("USE_NETWORK_DEFAULT_ROUTE")
            # Have lwIP switch to the DNS servers of the netif that owns the
            # default route whenever the arbitration changes it.
@@ -78,16 +78,24 @@ void NetworkComponent::loop() {
  // USE_NETWORK_PRIMARY_INTERFACE_WIFI is emitted for a wifi-first priority list;
  // it selects the reported address in util.cpp and doubles as the route-order
  // pivot here — the two uses must stay in sync.
-  esp_netif_t *best;
+  esp_netif_t *wifi = connected_wifi_netif();
+  esp_netif_t *ethernet = connected_ethernet_netif();
 #ifdef USE_NETWORK_PRIMARY_INTERFACE_WIFI
-  best = connected_wifi_netif();
-  if (best == nullptr)
-    best = connected_ethernet_netif();
+  esp_netif_t *best = wifi != nullptr ? wifi : ethernet;
 #else
-  best = connected_ethernet_netif();
-  if (best == nullptr)
-    best = connected_wifi_netif();
+  esp_netif_t *best = ethernet != nullptr ? ethernet : wifi;
 #endif
+  NetworkInterface active = NetworkInterface::NETWORK_INTERFACE_NONE;
+  if (best != nullptr) {
+    active = best == ethernet ? NetworkInterface::NETWORK_INTERFACE_ETHERNET : NetworkInterface::NETWORK_INTERFACE_WIFI;
+  }
+  if (active != this->active_interface_) {
+    this->active_interface_ = active;
+#ifdef NETWORK_ACTIVE_INTERFACE_LISTENER_COUNT
+    for (auto *listener : this->active_interface_listeners_)
+      listener->on_active_interface(active);
+#endif
+  }
  if (best == nullptr) {
    // Forget the last winner: stopping its netif cleared lwIP's default route and
    // IDF's manual override suppresses re-election, so reconnect must re-assert it.
@@ -4,12 +4,32 @@
 #include "esphome/core/component.h"

 #ifdef USE_NETWORK_DEFAULT_ROUTE
+#include "esphome/core/helpers.h"
 // Forward declaration matching esp_netif's own typedef; avoids pulling esp_netif.h
 // into this header.
 using esp_netif_t = struct esp_netif_obj;
 #endif

 namespace esphome::network {
+
+#ifdef USE_NETWORK_DEFAULT_ROUTE
+/// The interface holding the default route. Lists only the interfaces loop() arbitrates
+/// (ARBITRATED_NETWORK_TYPES in __init__.py); extend both together.
+enum class NetworkInterface : uint8_t {
+  NETWORK_INTERFACE_NONE,
+  NETWORK_INTERFACE_ETHERNET,
+  NETWORK_INTERFACE_WIFI,
+};
+
+#ifdef NETWORK_ACTIVE_INTERFACE_LISTENER_COUNT
+/// Notified from the main loop when the interface holding the default route changes.
+class ActiveInterfaceListener {
+ public:
+  virtual void on_active_interface(NetworkInterface interface) = 0;
+};
+#endif
+#endif
+
 class NetworkComponent final : public Component {
 public:
  void setup() override;
@@ -20,6 +40,14 @@ class NetworkComponent final : public Component {
 #ifdef USE_NETWORK_DEFAULT_ROUTE
  void loop() override;

+  /// The first connected interface in network: priority order; NONE while none is connected.
+  NetworkInterface get_active_interface() const { return this->active_interface_; }
+#ifdef NETWORK_ACTIVE_INTERFACE_LISTENER_COUNT
+  void add_active_interface_listener(ActiveInterfaceListener *listener) {
+    this->active_interface_listeners_.push_back(listener);
+  }
+#endif
+
 protected:
  // Verify-lwIP-route interval for the settled state; keeps the global lwIP core
  // mutex off the hot loop path.
@@ -27,6 +55,10 @@ class NetworkComponent final : public Component {
  // Last netif this component made the default; avoids redundant esp_netif calls.
  esp_netif_t *default_netif_{nullptr};
  uint32_t last_route_check_{0};
+#ifdef NETWORK_ACTIVE_INTERFACE_LISTENER_COUNT
+  StaticVector<ActiveInterfaceListener *, NETWORK_ACTIVE_INTERFACE_LISTENER_COUNT> active_interface_listeners_;
+#endif
+  NetworkInterface active_interface_{NetworkInterface::NETWORK_INTERFACE_NONE};
 #endif
 };
 }  // namespace esphome::network
@@ -1040,11 +1040,13 @@ def run_compile(args, config: ConfigType) -> bool:
    framework_ver = CORE.data[KEY_CORE][KEY_FRAMEWORK_VERSION]
    bootloader = zephyr_data()[KEY_BOOTLOADER]

-    # (dev_type, sd_req) per bootloader — values from Nordic SoftDevice release notes
+    # (dev_type, sd_req) per bootloader — values from Nordic SoftDevice release notes.
+    # The bootloader resets on a package whose sd_req does not list its SoftDevice,
+    # so v7 accepts S140 7.0.1, 7.2.0 and 7.3.0 (e.g. Seeed XIAO nRF52840).
    _GENPKG_PARAMS = {
        BOOTLOADER_ADAFRUIT_NRF52_SD132: ("0x0051", "0x009D"),
        BOOTLOADER_ADAFRUIT_NRF52_SD140_V6: ("0x0052", "0x00B6"),
-        BOOTLOADER_ADAFRUIT_NRF52_SD140_V7: ("0x0052", "0x00CA"),
+        BOOTLOADER_ADAFRUIT_NRF52_SD140_V7: ("0x0052", "0x00CA,0x0100,0x0123"),
    }
    # UF2 family IDs — nRF52832 vs nRF52840 per SoftDevice variant
    _UF2_FAMILY_IDS = {
@@ -0,0 +1,79 @@
+from esphome import pins
+import esphome.codegen as cg
+from esphome.components import i2c
+import esphome.config_validation as cv
+from esphome.const import (
+    CONF_ID,
+    CONF_INPUT,
+    CONF_INTERRUPT_PIN,
+    CONF_INVERTED,
+    CONF_MODE,
+    CONF_NUMBER,
+    CONF_OUTPUT,
+)
+from esphome.cpp_generator import MockObj
+from esphome.types import ConfigType
+
+AUTO_LOAD = ["gpio_expander"]
+CODEOWNERS = ["@ssieb", "@ajfriesen"]
+DEPENDENCIES = ["i2c"]
+DOMAIN = "pca9505"
+MULTI_CONF = True
+
+pca9505_ns = cg.esphome_ns.namespace("pca9505")
+
+PCA9505Component = pca9505_ns.class_("PCA9505Component", cg.Component, i2c.I2CDevice)
+PCA9505GPIOPin = pca9505_ns.class_(
+    "PCA9505GPIOPin", cg.GPIOPin, cg.Parented.template(PCA9505Component)
+)
+
+CONF_PCA9505 = "pca9505"
+CONFIG_SCHEMA = (
+    cv.Schema(
+        {
+            cv.Required(CONF_ID): cv.declare_id(PCA9505Component),
+            cv.Optional(CONF_INTERRUPT_PIN): pins.internal_gpio_input_pin_schema,
+        }
+    )
+    .extend(cv.COMPONENT_SCHEMA)
+    .extend(i2c.i2c_device_schema(0x20))
+)
+
+
+async def to_code(config: ConfigType) -> None:
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await i2c.register_i2c_device(var, config)
+    if interrupt_pin := config.get(CONF_INTERRUPT_PIN):
+        cg.add(var.set_interrupt_pin(await cg.gpio_pin_expression(interrupt_pin)))
+
+
+def validate_mode(value: ConfigType) -> ConfigType:
+    if not (value[CONF_INPUT] or value[CONF_OUTPUT]):
+        raise cv.Invalid("Mode must be either input or output")
+    if value[CONF_INPUT] and value[CONF_OUTPUT]:
+        raise cv.Invalid("Mode must be either input or output")
+    return value
+
+
+PCA9505_PIN_SCHEMA = pins.gpio_base_schema(
+    PCA9505GPIOPin,
+    cv.int_range(min=0, max=39),
+    modes=[CONF_INPUT, CONF_OUTPUT],
+    mode_validator=validate_mode,
+).extend(
+    {
+        cv.Required(CONF_PCA9505): cv.use_id(PCA9505Component),
+    }
+)
+
+
+@pins.PIN_SCHEMA_REGISTRY.register(CONF_PCA9505, PCA9505_PIN_SCHEMA)
+async def pca9505_pin_to_code(config: ConfigType) -> MockObj:
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_parented(var, config[CONF_PCA9505])
+
+    cg.add(var.set_pin(config[CONF_NUMBER]))
+    cg.add(var.set_inverted(config[CONF_INVERTED]))
+    cg.add(var.set_flags(pins.gpio_flags_expr(config[CONF_MODE])))
+    return var
@@ -0,0 +1,165 @@
+#include "pca9505.h"
+#include "esphome/core/log.h"
+
+namespace esphome::pca9505 {
+
+// Each register block holds one byte per port. Add the port number to reach a single
+// port, or set the auto-increment bit to transfer the whole block in one go.
+static constexpr uint8_t INPUT_REG = 0x00;
+static constexpr uint8_t OUTPUT_REG = 0x08;
+static constexpr uint8_t INVERT_REG = 0x10;
+static constexpr uint8_t CONFIG_REG = 0x18;
+static constexpr uint8_t MASK_REG = 0x20;
+static constexpr uint8_t AUTO_INCREMENT = 0x80;
+
+ESPHOME_LOG_TAG(TAG, "pca9505");
+
+void PCA9505Component::setup() {
+  // Test to see if device exists
+  if (!this->read_bank_(0)) {
+    ESP_LOGE(TAG, "PCA9505 not detected at 0x%02X", this->address_);
+    this->mark_failed();
+    return;
+  }
+
+  // No polarity inversion
+  this->write_all_banks_(INVERT_REG, 0x00);
+  // All outputs low, before anything is switched to being an output
+  this->write_all_banks_(OUTPUT_REG, 0x00);
+  // All inputs at initialization. The part sees a 1 as an input, so this is the
+  // inverse of config_, which is all zeroes here.
+  this->write_all_banks_(CONFIG_REG, 0xFF);
+
+  // Mask every interrupt. This must be written, not assumed: the chip keeps its
+  // registers through an MCU reboot, so a previous run may have left pins unmasked.
+  for (uint8_t &bank : this->mask_) {
+    bank = 0xFF;
+  }
+  this->write_all_banks_(MASK_REG, 0xFF);
+
+  if (this->interrupt_pin_ != nullptr) {
+    this->interrupt_pin_->setup();
+    this->interrupt_pin_->attach_interrupt(&PCA9505Component::gpio_intr, this, gpio::INTERRUPT_FALLING_EDGE);
+    // Don't invalidate cache on read - only invalidate when interrupt fires
+    this->set_invalidate_on_read_(false);
+  }
+
+  // Nothing to poll until pin_mode() registers an input pin.
+  this->disable_loop();
+}
+
+void IRAM_ATTR PCA9505Component::gpio_intr(PCA9505Component *arg) { arg->enable_loop_soon_any_context(); }
+
+void PCA9505Component::loop() {
+  // Invalidate the cache so the next digital_read() triggers a fresh I2C read
+  this->reset_pin_cache_();
+  // Only disable the loop once INT has actually gone HIGH. Input transitions that straddle the
+  // I2C read leave INT asserted without re-firing a falling edge, which would strand us with
+  // stale state forever; keep looping until the line is released so we self-heal.
+  if (this->interrupt_pin_ != nullptr && this->interrupt_pin_->digital_read()) {
+    this->disable_loop();
+  }
+}
+
+void PCA9505Component::dump_config() {
+  ESP_LOGCONFIG(TAG, "PCA9505:");
+  LOG_PIN("  Interrupt Pin: ", this->interrupt_pin_);
+  LOG_I2C_DEVICE(this)
+  if (this->is_failed()) {
+    ESP_LOGE(TAG, ESP_LOG_MSG_COMM_FAIL);
+  }
+}
+
+bool PCA9505Component::digital_read_hw(uint8_t pin) { return this->read_bank_(pin / 8); }
+
+bool PCA9505Component::digital_read_cache(uint8_t pin) { return this->input_[pin / 8] & (1 << (pin % 8)); }
+
+void PCA9505Component::digital_write_hw(uint8_t pin, bool value) {
+  const uint8_t bank = pin / 8;
+  const uint8_t mask = 1 << (pin % 8);
+  if (value) {
+    this->output_[bank] |= mask;
+  } else {
+    this->output_[bank] &= ~mask;
+  }
+  this->write_bank_(OUTPUT_REG, bank, this->output_[bank]);
+}
+
+void PCA9505Component::pin_mode(uint8_t pin, gpio::Flags flags) {
+  const uint8_t bank = pin / 8;
+  const uint8_t mask = 1 << (pin % 8);
+  if (flags & gpio::FLAG_INPUT) {
+    this->config_[bank] &= ~mask;
+    // An input may raise INT; the polling loop is only needed when there is no interrupt pin.
+    this->mask_[bank] &= ~mask;
+    if (this->interrupt_pin_ == nullptr) {
+      this->enable_loop();
+    }
+  } else if (flags & gpio::FLAG_OUTPUT) {
+    this->config_[bank] |= mask;
+    // An output must never raise INT.
+    this->mask_[bank] |= mask;
+  }
+  // Invert as the part sees a 1 as an input
+  this->write_bank_(CONFIG_REG, bank, ~this->config_[bank]);
+  // Without an interrupt pin INT is unconnected, so the masks written at setup can stay
+  if (this->interrupt_pin_ != nullptr) {
+    this->write_bank_(MASK_REG, bank, this->mask_[bank]);
+  }
+}
+
+bool PCA9505Component::read_bank_(uint8_t bank) {
+  if (this->is_failed())
+    return false;
+
+  if (this->read_register(INPUT_REG + bank, &this->input_[bank], 1) != i2c::ERROR_OK) {
+    this->status_set_warning(LOG_STR("Failed to read input register"));
+    return false;
+  }
+  this->status_clear_warning();
+  return true;
+}
+
+bool PCA9505Component::write_bank_(uint8_t reg, uint8_t bank, uint8_t value) {
+  if (this->is_failed())
+    return false;
+
+  if (this->write_register(reg + bank, &value, 1) != i2c::ERROR_OK) {
+    this->status_set_warning(LOG_STR("Failed to write register"));
+    return false;
+  }
+  this->status_clear_warning();
+  return true;
+}
+
+bool PCA9505Component::write_all_banks_(uint8_t reg, uint8_t value) {
+  if (this->is_failed())
+    return false;
+
+  uint8_t values[BANK_COUNT];
+  for (uint8_t &bank : values) {
+    bank = value;
+  }
+  if (this->write_register(reg | AUTO_INCREMENT, values, sizeof(values)) != i2c::ERROR_OK) {
+    this->status_set_warning(LOG_STR("Failed to write register"));
+    return false;
+  }
+  this->status_clear_warning();
+  return true;
+}
+
+float PCA9505Component::get_setup_priority() const { return setup_priority::IO; }
+
+void PCA9505GPIOPin::setup() { this->pin_mode(this->flags_); }
+
+void PCA9505GPIOPin::pin_mode(gpio::Flags flags) { this->parent_->pin_mode(this->pin_, flags); }
+
+bool PCA9505GPIOPin::digital_read() { return this->parent_->digital_read(this->pin_) != this->inverted_; }
+
+void PCA9505GPIOPin::digital_write(bool value) { this->parent_->digital_write(this->pin_, value != this->inverted_); }
+
+size_t PCA9505GPIOPin::dump_summary(char *buffer, size_t len) const {
+  return buf_append_printf(buffer, len, 0, "%u via PCA9505", this->pin_);
+}
+
+}  // namespace esphome::pca9505
@@ -0,0 +1,72 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/core/hal.h"
+#include "esphome/core/helpers.h"
+#include "esphome/components/gpio_expander/cached_gpio.h"
+#include "esphome/components/i2c/i2c.h"
+
+namespace esphome::pca9505 {
+
+/// Number of I/O pins on the PCA9505 and PCA9506.
+static constexpr uint8_t PIN_COUNT = 40;
+/// The pins are grouped into five ports of eight, each with its own set of registers.
+static constexpr uint8_t BANK_COUNT = PIN_COUNT / 8;
+
+class PCA9505Component final : public Component,
+                               public i2c::I2CDevice,
+                               public gpio_expander::CachedGpioExpander<uint8_t, PIN_COUNT> {
+ public:
+  void set_interrupt_pin(InternalGPIOPin *pin) { this->interrupt_pin_ = pin; }
+
+  void setup() override;
+  void loop() override;
+  void pin_mode(uint8_t pin, gpio::Flags flags);
+
+  float get_setup_priority() const override;
+
+  void dump_config() override;
+
+ protected:
+  static void IRAM_ATTR gpio_intr(PCA9505Component *arg);
+
+  bool digital_read_hw(uint8_t pin) override;
+  bool digital_read_cache(uint8_t pin) override;
+  void digital_write_hw(uint8_t pin, bool value) override;
+
+  bool read_bank_(uint8_t bank);
+  bool write_bank_(uint8_t reg, uint8_t bank, uint8_t value);
+  bool write_all_banks_(uint8_t reg, uint8_t value);
+
+  /// The pin config per bank - 1 means OUTPUT, 0 means INPUT
+  uint8_t config_[BANK_COUNT]{};
+  /// The output state per bank - 1 means HIGH, 0 means LOW
+  uint8_t output_[BANK_COUNT]{};
+  /// The input pin states per bank - 1 means HIGH, 0 means LOW
+  uint8_t input_[BANK_COUNT]{};
+  /// Which pins may pull INT low - 1 means masked, matching the chip
+  uint8_t mask_[BANK_COUNT]{};
+  InternalGPIOPin *interrupt_pin_{nullptr};
+};
+
+class PCA9505GPIOPin final : public GPIOPin, public Parented<PCA9505Component> {
+ public:
+  void setup() override;
+  void pin_mode(gpio::Flags flags) override;
+  bool digital_read() override;
+  void digital_write(bool value) override;
+  size_t dump_summary(char *buffer, size_t len) const override;
+
+  void set_pin(uint8_t pin) { this->pin_ = pin; }
+  void set_inverted(bool inverted) { this->inverted_ = inverted; }
+  void set_flags(gpio::Flags flags) { this->flags_ = flags; }
+
+  gpio::Flags get_flags() const override { return this->flags_; }
+
+ protected:
+  uint8_t pin_{0};
+  bool inverted_{false};
+  gpio::Flags flags_{};
+};
+
+}  // namespace esphome::pca9505
@@ -35,7 +35,7 @@ CONFIG_SCHEMA = cv.ensure_list(


 async def to_code(config: list[ConfigType]) -> None:
-    cg.add_library("wjtje/qr-code-generator-library", "^1.7.0")
+    cg.add_library("wjtje/qr-code-generator-library", "1.7.0")

    for entry in config:
        var = cg.new_Pvariable(entry[CONF_ID])
@@ -6,4 +6,5 @@ CONF_DRAW_FROM_ORIGIN = "draw_from_origin"
 DEPRECATED_COMPONENT = """
 The 'qspi_dbi' component is deprecated and no new models will be added to it.
 New model PRs should target the newer and more performant 'mipi_spi' component.
+It will be removed in ESPHome 2027.5.0.
 """
@@ -165,8 +165,10 @@ CONFIG_SCHEMA = cv.All(


 async def to_code(config: ConfigType) -> None:
+    # Remove before 2027.5.0
    LOGGER.warning(
-        "The 'qspi_dbi' component is deprecated, it is recommended to use 'mipi_spi' instead."
+        "The 'qspi_dbi' component is deprecated and will be removed in ESPHome 2027.5.0, "
+        "migrate to 'mipi_spi' instead."
    )
    var = cg.new_Pvariable(config[CONF_ID])
    await display.register_display(var, config)
@@ -8,12 +8,13 @@
 #include "esphome/components/display/display.h"
 #include "esphome/components/display/display_buffer.h"
 #include "esphome/components/display/display_color_utils.h"
+#include "esphome/core/log.h"

 #include "esp_lcd_panel_rgb.h"

 namespace esphome::qspi_dbi {

-constexpr static const char *const TAG = "display.qspi_dbi";
+ESPHOME_LOG_TAG(TAG, "display.qspi_dbi");
 static const uint8_t SW_RESET_CMD = 0x01;
 static const uint8_t SLEEP_OUT = 0x11;
 static const uint8_t NORON = 0x13;
@@ -4,4 +4,5 @@ DOMAIN = "rpi_dpi_rgb"
 DEPRECATED_COMPONENT = """
 The 'rpi_dpi_rgb' component is deprecated and no new models will be added to it.
 New model PRs should target the newer and more performant 'mipi_rgb' component.
+It will be removed in ESPHome 2027.5.0.
 """
@@ -132,8 +132,10 @@ CONFIG_SCHEMA = cv.All(


 async def to_code(config: ConfigType) -> None:
+    # Remove before 2027.5.0
    LOGGER.warning(
-        "The 'rpi_dpi_rgb' component is deprecated, it is recommended to use 'mipi_rgb' instead."
+        "The 'rpi_dpi_rgb' component is deprecated and will be removed in ESPHome 2027.5.0, "
+        "migrate to 'mipi_rgb' instead."
    )
    var = cg.new_Pvariable(config[CONF_ID])
    await display.register_display(var, config)
@@ -16,7 +16,7 @@

 namespace esphome::rpi_dpi_rgb {

-constexpr static const char *const TAG = "rpi_dpi_rgb";
+ESPHOME_LOG_TAG(TAG, "rpi_dpi_rgb");

 class RpiDpiRgb final : public display::Display {
 public:
@@ -14,6 +14,8 @@ _LOGGER = logging.getLogger(__name__)
 CODEOWNERS = ["@glmnet", "@ximex"]
 DOMAIN = "rtttl"
 CONF_RTTTL = "rtttl"
+# The player keeps the song length in 16 bits
+MAX_SONG_LENGTH = 65535
 CONF_ON_FINISHED_PLAYBACK = "on_finished_playback"

 rtttl_ns = cg.esphome_ns.namespace("rtttl")
@@ -97,16 +99,23 @@ async def to_code(config: ConfigType) -> None:
        await automation.build_callback_automations(var, config, _CALLBACK_AUTOMATIONS)


+def _static_song(config: ConfigType, value: str) -> str:
+    # A constant song plays straight from static storage, flash on ESP8266, with no copy per play
+    return f"esphome::rtttl::StaticSong{{{cg.FlashStringLiteral(value)}}}"
+
+
 automation.register_apply_action(
    "rtttl.play",
    cv.maybe_simple_value(
        {
            cv.GenerateID(CONF_ID): cv.use_id(Rtttl),
-            cv.Required(CONF_RTTTL): cv.templatable(cv.string),
+            cv.Required(CONF_RTTTL): cv.templatable(
+                cv.All(cv.string, cv.ByteLength(max=MAX_SONG_LENGTH))
+            ),
        },
        key=CONF_RTTTL,
    ),
-    automation.ApplyField(CONF_RTTTL, "play", cg.std_string),
+    automation.ApplyField(CONF_RTTTL, "play", cg.std_string, const_fn=_static_song),
 )

 automation.register_apply_action(
@@ -1,5 +1,8 @@
 #include "rtttl.h"
+#include <algorithm>
 #include <cmath>
+#include <cstring>
+#include <limits>
 #include "esphome/core/hal.h"
 #include "esphome/core/log.h"
 #include "esphome/core/progmem.h"
@@ -147,14 +150,14 @@ void Rtttl::loop() {
 #endif  // USE_SPEAKER

  // Align to note: most rtttl's out there does not add any space after the ',' separator but just in case
-  while (this->position_ < this->rtttl_.length()) {
-    char c = this->rtttl_[this->position_];
+  while (this->position_ < this->song_len_) {
+    char c = this->song_at_(this->position_);
    if (c != ',' && c != ' ')
      break;
    this->position_++;
  }

-  if (this->position_ >= this->rtttl_.length()) {
+  if (this->position_ >= this->song_len_) {
    this->finish_();
    return;
  }
@@ -169,12 +172,12 @@ void Rtttl::loop() {
    this->note_duration_ = this->wholenote_duration_ / this->default_note_denominator_;
  }

-  uint8_t note_index_in_octave = note_index_from_char(this->rtttl_[this->position_]);
+  uint8_t note_index_in_octave = note_index_from_char(this->song_at_(this->position_));

  this->position_++;

  // Now, get optional '#' sharp
-  if (this->rtttl_[this->position_] == '#') {
+  if (this->song_at_(this->position_) == '#') {
    note_index_in_octave++;
    this->position_++;
  }
@@ -192,7 +195,7 @@ void Rtttl::loop() {
  }

  // Now, get optional '.' dotted note
-  if (this->rtttl_[this->position_] == '.') {
+  if (this->song_at_(this->position_) == '.') {
    this->note_duration_ += this->note_duration_ / 2;  // Duration +50%
    this->position_++;
  }
@@ -264,15 +267,68 @@ void Rtttl::loop() {
 }

 void Rtttl::play(std::string rtttl) {
-  if (this->state_ != State::STOPPED && this->state_ != State::STOPPING) {
-    size_t pos = this->rtttl_.find(':');
-    size_t len = (pos != std::string::npos) ? pos : this->rtttl_.length();
-    ESP_LOGW(TAG, "Already playing: %.*s", (int) len, this->rtttl_.c_str());
+  if (this->is_busy_()) {
    return;
  }
+  this->owned_song_ = std::move(rtttl);
+  this->set_song_(this->owned_song_.data(), this->owned_song_.size());
+  this->start_();
+}

-  this->rtttl_ = std::move(rtttl);
+void Rtttl::play(StaticSong song) {
+  if (this->is_busy_()) {
+    return;
+  }
+  // Release a previously owned song; the static one needs no storage.
+  std::string().swap(this->owned_song_);
+  const char *data = reinterpret_cast<const char *>(song.rtttl);
+  this->set_song_(data, ESPHOME_strlen_P(data));
+  this->start_();
+}

+void Rtttl::set_song_(const char *song, size_t len) {
+  this->song_ = song;
+  // Anything past what the 16 bit length holds is dropped; the validator keeps configured songs shorter.
+  this->song_len_ = static_cast<uint16_t>(std::min<size_t>(len, std::numeric_limits<uint16_t>::max()));
+}
+
+bool Rtttl::is_busy_() const {
+  if (this->state_ == State::STOPPED || this->state_ == State::STOPPING) {
+    return false;
+  }
+  char name[SONG_NAME_LENGTH_LIMIT + 1];
+  this->song_name_(name, sizeof(name), this->song_find_(':', 0, this->song_len_));
+  ESP_LOGW(TAG, "Already playing: %s", name);
+  return true;
+}
+
+size_t Rtttl::song_find_(char c, size_t from, size_t end) const {
+  for (size_t pos = from; pos < end; pos++) {
+    if (this->song_at_(pos) == c)
+      return pos;
+  }
+  return end;
+}
+
+size_t Rtttl::song_find_control_(char key, size_t from, size_t end) const {
+  size_t pos = from;
+  while ((pos = this->song_find_(key, pos, end)) < end) {
+    if (this->song_at_(pos + 1) == '=')
+      return pos;
+    pos++;
+  }
+  return end;
+}
+
+void Rtttl::song_name_(char *buf, size_t size, size_t name_len) const {
+  size_t len = std::min(name_len, size - 1);
+  for (size_t pos = 0; pos < len; pos++) {
+    buf[pos] = this->song_at_(pos);
+  }
+  buf[len] = '\0';
+}
+
+void Rtttl::start_() {
  this->default_note_denominator_ = DEFAULT_NOTE_DENOMINATOR;
  this->default_octave_ = DEFAULT_OCTAVE;
  this->note_duration_ = 0;
@@ -281,9 +337,9 @@ void Rtttl::play(std::string rtttl) {
  uint16_t num;  // Used for: default note-denominator, default octave, BPM

  // Get name
-  this->position_ = this->rtttl_.find(':');
+  this->position_ = this->song_find_(':', 0, this->song_len_);

-  if (this->position_ == std::string::npos) {
+  if (this->position_ == this->song_len_) {
    ESP_LOGE(TAG, "Unable to determine name; missing ':'");
    return;
  }
@@ -292,18 +348,20 @@ void Rtttl::play(std::string rtttl) {
             static_cast<unsigned>(SONG_NAME_LENGTH_LIMIT));
    return;
  }
-  ESP_LOGD(TAG, "Playing song %.*s", (int) this->position_, this->rtttl_.c_str());
+  char name[SONG_NAME_LENGTH_LIMIT + 1];
+  this->song_name_(name, sizeof(name), this->position_);
+  ESP_LOGD(TAG, "Playing song %s", name);

  size_t name_end_position = this->position_;
-  size_t control_end = this->rtttl_.find(':', name_end_position + 1);
-  if (control_end == std::string::npos) {
+  size_t control_end = this->song_find_(':', name_end_position + 1, this->song_len_);
+  if (control_end == this->song_len_) {
    ESP_LOGE(TAG, "Missing second ':'");
    return;
  }

  // Get default duration
-  size_t pos = this->rtttl_.find("d=", name_end_position);
-  if (pos == std::string::npos || pos >= control_end) {
+  size_t pos = this->song_find_control_('d', name_end_position, control_end);
+  if (pos == control_end) {
    ESP_LOGW(TAG, "Missing 'd='; use default duration %d", this->default_note_denominator_);
  } else {
    this->position_ = pos + 2;
@@ -317,8 +375,8 @@ void Rtttl::play(std::string rtttl) {
  }

  // Get default octave
-  pos = this->rtttl_.find("o=", name_end_position);
-  if (pos == std::string::npos || pos >= control_end) {
+  pos = this->song_find_control_('o', name_end_position, control_end);
+  if (pos == control_end) {
    ESP_LOGW(TAG, "Missing 'o='; use default octave %d", this->default_octave_);
  } else {
    this->position_ = pos + 2;
@@ -332,8 +390,8 @@ void Rtttl::play(std::string rtttl) {
  }

  // Get BPM
-  pos = this->rtttl_.find("b=", name_end_position);
-  if (pos == std::string::npos || pos >= control_end) {
+  pos = this->song_find_control_('b', name_end_position, control_end);
+  if (pos == control_end) {
    ESP_LOGW(TAG, "Missing 'b='; use default BPM %d", bpm);
  } else {
    this->position_ = pos + 2;
@@ -387,7 +445,7 @@ void Rtttl::stop() {
  }
 #endif  // USE_SPEAKER

-  this->position_ = this->rtttl_.length();
+  this->position_ = this->song_len_;
  this->note_duration_ = 0;
 }

@@ -411,7 +469,7 @@ void Rtttl::finish_() {
 #endif  // USE_SPEAKER

  // Ensure no more notes are played in case finish_() is called for an error.
-  this->position_ = this->rtttl_.length();
+  this->position_ = this->song_len_;
  this->note_duration_ = 0;
 }

@@ -3,6 +3,7 @@
 #include "esphome/core/component.h"
 #include "esphome/core/defines.h"
 #include "esphome/core/helpers.h"
+#include "esphome/core/progmem.h"

 #ifdef USE_OUTPUT
 #include "esphome/components/output/float_output.h"
@@ -14,6 +15,10 @@

 namespace esphome::rtttl {

+namespace testing {
+class RtttlParserAccess;
+}  // namespace testing
+
 inline constexpr uint8_t DEFAULT_NOTE_DENOMINATOR = 4;  // Default note-denominator (quarter note)
 inline constexpr uint8_t DEFAULT_OCTAVE =
    6;  // Default octave for a note (see: `MIN_OCTAVE`, `MAX_OCTAVE` in `rtttl.cpp`)
@@ -26,6 +31,11 @@ enum class State : uint8_t {
  STOPPING,
 };

+/// A song in storage that outlives playback, such as a literal from generated code; PROGMEM on ESP8266.
+struct StaticSong {
+  ProgmemStr rtttl;
+};
+
 class Rtttl final : public Component {
 public:
 #ifdef USE_OUTPUT
@@ -38,7 +48,10 @@ class Rtttl final : public Component {

  void dump_config() override;
  void loop() override;
+  /// Play a song; the string is copied so it may come from anywhere.
  void play(std::string rtttl);
+  /// Play a song from static storage without copying it.
+  void play(StaticSong song);
  void stop();

  float get_gain() { return this->gain_; }
@@ -55,11 +68,29 @@ class Rtttl final : public Component {
 protected:
  inline uint16_t get_integer_() {
    uint16_t ret = 0;
-    while (isdigit(this->rtttl_[this->position_])) {
-      ret = (ret * 10) + (this->rtttl_[this->position_++] - '0');
+    while (isdigit(this->song_at_(this->position_))) {
+      ret = (ret * 10) + (this->song_at_(this->position_++) - '0');
    }
    return ret;
  }
+  /// The byte of the song at pos, or NUL past its end; the read is flash safe for a PROGMEM song on ESP8266.
+  char song_at_(size_t pos) const {
+    if (pos >= this->song_len_)
+      return '\0';
+    return static_cast<char>(progmem_read_byte(reinterpret_cast<const uint8_t *>(this->song_) + pos));
+  }
+  /// Index of the first `c` in [from, end), or `end` when absent.
+  size_t song_find_(char c, size_t from, size_t end) const;
+  /// Index of `key` followed by '=' in [from, end), or `end` when absent.
+  size_t song_find_control_(char key, size_t from, size_t end) const;
+  /// Copies the first name_len bytes of the song, its name, into buf for logging.
+  void song_name_(char *buf, size_t size, size_t name_len) const;
+  /// Points the view at a song, clamped to what song_len_ can hold.
+  void set_song_(const char *song, size_t len);
+  /// Parses the header and starts playback of the song the view points at.
+  void start_();
+  /// Logs and returns true when a song is still playing, so a new one must wait.
+  bool is_busy_() const;
  /**
   * @brief Finalizes the playback of the RTTTL string.
   *
@@ -70,26 +101,30 @@ class Rtttl final : public Component {
  void finish_();
  void set_state_(State state);

-  /// The RTTTL string to play.
-  std::string rtttl_;
-  /// The current position in the RTTTL string.
-  size_t position_{0};
-  /// The default duration of a note (e.g. 4 for a quarter note).
-  uint8_t default_note_denominator_{DEFAULT_NOTE_DENOMINATOR};
-  /// The default octave for a note.
-  uint8_t default_octave_{DEFAULT_OCTAVE};
-  /// The duration of the current note in milliseconds.
-  uint16_t note_duration_{0};
-  /// The duration of a whole note in milliseconds.
-  uint16_t wholenote_duration_;
-  /// The current state of the RTTTL player.
-  State state_{State::STOPPED};
+  /// The song being played; points at owned_song_ or at static storage.
+  const char *song_{nullptr};
+  /// Backing store for play(std::string).
+  std::string owned_song_;
  /// The time in milliseconds since microcontroller boot when the last note was started.
  uint32_t last_note_start_time_;
  /// The frequency of the current note in Hz.
  uint32_t output_freq_{0};
  /// The gain of the output.
  float gain_{0.6f};
+  /// Length of the song in bytes; songs are a few hundred bytes, so 16 bits is ample.
+  uint16_t song_len_{0};
+  /// The current position in the song.
+  uint16_t position_{0};
+  /// The duration of the current note in milliseconds.
+  uint16_t note_duration_{0};
+  /// The duration of a whole note in milliseconds.
+  uint16_t wholenote_duration_;
+  /// The default duration of a note (e.g. 4 for a quarter note).
+  uint8_t default_note_denominator_{DEFAULT_NOTE_DENOMINATOR};
+  /// The default octave for a note.
+  uint8_t default_octave_{DEFAULT_OCTAVE};
+  /// The current state of the RTTTL player.
+  State state_{State::STOPPED};

 #ifdef USE_OUTPUT
  /// The output to write the sound to.
@@ -113,6 +148,8 @@ class Rtttl final : public Component {
  /// The callback to call when playback is finished.
  CallbackManager<void()> on_finished_playback_callback_;
 #endif
+
+  friend class testing::RtttlParserAccess;
 };

 }  // namespace esphome::rtttl
@@ -115,7 +115,7 @@ class PNGFormat(Format):

    def actions(self) -> None:
        cg.add_define("USE_RUNTIME_IMAGE_PNG")
-        cg.add_library("pngle", "1.1.0")
+        cg.add_library("kikuchan98/pngle", "1.1.0")


 class QOIFormat(Format):
@@ -15,7 +15,7 @@ class Component;  // Forward declaration

 namespace runtime_stats {

-static const char *const TAG = "runtime_stats";
+ESPHOME_LOG_TAG(TAG, "runtime_stats");

 class RuntimeStatsCollector final {
 public:
@@ -13,7 +13,7 @@

 namespace esphome::sdl {

-constexpr static const char *const TAG = "sdl";
+ESPHOME_LOG_TAG(TAG, "sdl");

 class Sdl final : public display::Display, public snapshot::Snapshot {
 public:
@@ -14,6 +14,15 @@ static constexpr uint32_t POLL_INTERVAL = 50;   // 50 ms between poll attempts
 // Numeric timeout IDs. Each chain is sequential, so only one timeout per ID is active at a time.
 static constexpr uint32_t TIMEOUT_POLL = 1;
 static constexpr uint32_t TIMEOUT_SETUP_STEP = 2;
+static constexpr uint32_t TIMEOUT_STARTUP = 3;
+// Post-command wait times from the datasheet: start execution (4.8.1), stop execution (4.8.2),
+// fan cleaning (4.8.22), SHT heater (4.8.23), CO2 conditioning after start on SEN63C/SEN69C (4.8.1)
+static constexpr uint32_t START_MEASUREMENT_DELAY = 50;
+static constexpr uint32_t STOP_MEASUREMENT_DELAY = 1400;
+static constexpr uint32_t FAN_CLEANING_DELAY = 10000;
+static constexpr uint32_t SHT_HEATER_DELAY = 20000;
+static constexpr uint32_t CO2_CONDITIONING_DELAY = 24000;
+static constexpr uint32_t STARTUP_DELAY = 60000;  // ms before published values are considered valid
 static constexpr uint16_t SEN6X_CMD_GET_DATA_READY_STATUS = 0x0202;
 static constexpr uint16_t SEN6X_CMD_GET_FIRMWARE_VERSION = 0xD100;
 static constexpr uint16_t SEN6X_CMD_GET_PRODUCT_NAME = 0xD014;
@@ -27,6 +36,9 @@ static constexpr uint16_t SEN6X_CMD_READ_MEASUREMENT_SEN68 = 0x0467;
 static constexpr uint16_t SEN6X_CMD_READ_MEASUREMENT_SEN69C = 0x04B5;

 static constexpr uint16_t SEN6X_CMD_START_MEASUREMENTS = 0x0021;
+static constexpr uint16_t SEN6X_CMD_STOP_MEASUREMENTS = 0x0104;
+static constexpr uint16_t SEN6X_CMD_START_FAN_CLEANING = 0x5607;
+static constexpr uint16_t SEN6X_CMD_ACTIVATE_SHT_HEATER = 0x6765;
 static constexpr uint16_t SEN6X_CMD_RESET = 0xD304;
 static constexpr uint16_t SEN6X_CMD_VOC_ALGORITHM_TUNING = 0x60D0;
 static constexpr uint16_t SEN6X_CMD_NOX_ALGORITHM_TUNING = 0x60E1;
@@ -191,7 +203,7 @@ void SEN6XComponent::finish_setup_() {
    return;
  }

-  this->set_timeout(60000, [this]() { this->startup_complete_ = true; });
+  this->on_measurement_started_();
  this->initialized_ = true;
  ESP_LOGD(TAG, "Initialized");
 }
@@ -240,7 +252,7 @@ void SEN6XComponent::dump_config() {
 }

 void SEN6XComponent::update() {
-  if (!this->initialized_) {
+  if (!this->initialized_ || !this->measuring_) {
    return;
  }

@@ -442,6 +454,101 @@ void SEN6XComponent::parse_and_publish_measurements_() {
  this->status_clear_warning();
 }

+// True while the previous command's execution or settling time has not elapsed
+bool SEN6XComponent::command_blocked_() const { return millis() - this->command_started_at_ < this->command_wait_; }
+
+void SEN6XComponent::set_command_wait_(uint32_t wait_ms) {
+  this->command_started_at_ = millis();
+  this->command_wait_ = wait_ms;
+}
+
+void SEN6XComponent::on_measurement_started_() {
+  this->measuring_ = true;
+  this->set_command_wait_(START_MEASUREMENT_DELAY);
+  // SEN63C/SEN69C condition the CO2 sensor for 24 s after a start; block restarts until then
+  if (this->sen6x_type_ == SEN63C || this->sen6x_type_ == SEN69C) {
+    this->co2_started_at_ = millis();
+    this->co2_wait_ = CO2_CONDITIONING_DELAY;
+  }
+  // Values need the warm-up period again after every start
+  this->startup_complete_ = false;
+  this->set_timeout(TIMEOUT_STARTUP, STARTUP_DELAY, [this]() { this->startup_complete_ = true; });
+}
+
+void SEN6XComponent::start_measurement() {
+  if (!this->initialized_ || this->measuring_)
+    return;
+  // The CO2 conditioning window only blocks restarting, not other commands
+  if (this->command_blocked_() || millis() - this->co2_started_at_ < this->co2_wait_) {
+    ESP_LOGW(TAG, "Device busy");
+    return;
+  }
+  if (!this->write_command(SEN6X_CMD_START_MEASUREMENTS)) {
+    this->status_set_warning();
+    ESP_LOGW(TAG, "Start measurement failed (%d)", this->last_error_);
+    return;
+  }
+  this->on_measurement_started_();
+}
+
+void SEN6XComponent::stop_measurement() {
+  if (!this->initialized_ || !this->measuring_)
+    return;
+  if (this->command_blocked_()) {
+    ESP_LOGW(TAG, "Device busy");
+    return;
+  }
+  // Stop any in-flight polling before the device goes idle
+  this->cancel_timeout(TIMEOUT_POLL);
+  if (!this->write_command(SEN6X_CMD_STOP_MEASUREMENTS)) {
+    this->status_set_warning();
+    ESP_LOGW(TAG, "Stop measurement failed (%d)", this->last_error_);
+    return;
+  }
+  this->measuring_ = false;
+  this->set_command_wait_(STOP_MEASUREMENT_DELAY);
+}
+
+void SEN6XComponent::start_fan_cleaning() {
+  if (!this->initialized_)
+    return;
+  // The device only accepts this command in idle mode (datasheet section 4.8.22)
+  if (this->measuring_) {
+    ESP_LOGW(TAG, "Fan cleaning requires idle mode; stop the measurement first");
+    return;
+  }
+  if (this->command_blocked_()) {
+    ESP_LOGW(TAG, "Device busy");
+    return;
+  }
+  if (!this->write_command(SEN6X_CMD_START_FAN_CLEANING)) {
+    this->status_set_warning();
+    ESP_LOGW(TAG, "Fan cleaning failed (%d)", this->last_error_);
+    return;
+  }
+  this->set_command_wait_(FAN_CLEANING_DELAY);
+}
+
+void SEN6XComponent::activate_sht_heater() {
+  if (!this->initialized_)
+    return;
+  // The device only accepts this command in idle mode (datasheet section 4.8.23)
+  if (this->measuring_) {
+    ESP_LOGW(TAG, "SHT heater requires idle mode; stop the measurement first");
+    return;
+  }
+  if (this->command_blocked_()) {
+    ESP_LOGW(TAG, "Device busy");
+    return;
+  }
+  if (!this->write_command(SEN6X_CMD_ACTIVATE_SHT_HEATER)) {
+    this->status_set_warning();
+    ESP_LOGW(TAG, "SHT heater failed (%d)", this->last_error_);
+    return;
+  }
+  this->set_command_wait_(SHT_HEATER_DELAY);
+}
+
 SEN6XComponent::Sen6xType SEN6XComponent::infer_type_from_product_name_(const std::string &product_name) {
  if (product_name == "SEN62")
    return SEN62;
@@ -58,6 +58,10 @@ class SEN6XComponent final : public PollingComponent, public sensirion_common::S
                                         NOX_STD_INITIAL,
                                         gain_factor};
  }
+  void start_measurement();
+  void stop_measurement();
+  void start_fan_cleaning();
+  void activate_sht_heater();

 protected:
  Sen6xType infer_type_from_product_name_(const std::string &product_name);
@@ -65,6 +69,9 @@ class SEN6XComponent final : public PollingComponent, public sensirion_common::S
  void finish_setup_();
  bool write_config_words_(uint16_t i2c_command, const uint16_t *data, uint8_t len);
  bool write_tuning_parameters_(uint16_t i2c_command, const GasTuning &tuning);
+  bool command_blocked_() const;
+  void set_command_wait_(uint32_t wait_ms);
+  void on_measurement_started_();
  void poll_data_ready_();
  void read_measurements_();
  void parse_and_publish_measurements_();
@@ -74,6 +81,11 @@ class SEN6XComponent final : public PollingComponent, public sensirion_common::S
  optional<GasTuning> voc_tuning_params_;
  optional<GasTuning> nox_tuning_params_;
  Sen6xType sen6x_type_{UNKNOWN};
+  // Post-command wait windows, stored as start time plus duration so elapsed-time checks survive millis() wrap
+  uint32_t command_started_at_{0};
+  uint32_t command_wait_{0};
+  uint32_t co2_started_at_{0};
+  uint32_t co2_wait_{0};
  uint16_t read_cmd_{0};
  uint8_t setup_step_index_{0};
  uint8_t firmware_version_major_{0};
@@ -81,6 +93,7 @@ class SEN6XComponent final : public PollingComponent, public sensirion_common::S
  uint8_t poll_retries_remaining_{0};
  uint8_t read_words_{0};
  bool initialized_{false};
+  bool measuring_{false};
  bool startup_complete_{false};
 };

@@ -1,3 +1,5 @@
+from esphome import automation
+from esphome.automation import maybe_simple_id
 import esphome.codegen as cg
 from esphome.components import i2c, sensirion_common, sensor
 from esphome.components.const import CONF_NOX_INDEX, CONF_VOC_INDEX
@@ -209,3 +211,21 @@ async def to_code(config: ConfigType) -> None:
                args.append(std_initial)
            args.append(tuning[CONF_GAIN_FACTOR])
            cg.add(getattr(var, setter)(*args))
+
+
+SEN6X_ACTION_SCHEMA = maybe_simple_id(
+    {
+        cv.Required(CONF_ID): cv.use_id(SEN6XComponent),
+    }
+)
+
+
+for _name, _call in (
+    ("sen6x.start_measurement", "start_measurement()"),
+    ("sen6x.stop_measurement", "stop_measurement()"),
+    ("sen6x.start_fan_cleaning", "start_fan_cleaning()"),
+    ("sen6x.activate_sht_heater", "activate_sht_heater()"),
+):
+    automation.register_apply_action(
+        _name, SEN6X_ACTION_SCHEMA, automation.ApplyCall(_call)
+    )
@@ -7,7 +7,7 @@

 namespace esphome::spi_led_strip {

-static const char *const TAG = "spi_led_strip";
+ESPHOME_LOG_TAG(TAG, "spi_led_strip");
 class SpiLedStrip final : public light::AddressableLight,
                          public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_HIGH,
                                                spi::CLOCK_PHASE_TRAILING, spi::DATA_RATE_1MHZ> {
@@ -8,13 +8,14 @@
 #include "esphome/core/component.h"
 #include "esphome/components/spi/spi.h"
 #include "esphome/components/display/display.h"
+#include "esphome/core/log.h"
 #include "esp_lcd_panel_ops.h"

 #include "esp_lcd_panel_rgb.h"

 namespace esphome::st7701s {

-constexpr static const char *const TAG = "display.st7701s";
+ESPHOME_LOG_TAG(TAG, "display.st7701s");
 const uint8_t SW_RESET_CMD = 0x01;
 const uint8_t SLEEP_OUT = 0x11;
 const uint8_t SDIR_CMD = 0xC7;
@@ -7,4 +7,5 @@ st7735_ns = cg.esphome_ns.namespace("st7735")
 DEPRECATED_COMPONENT = """
 The 'st7735' component is deprecated and no new models will be added to it.
 New model PRs should target the newer and more performant 'mipi_spi' component.
+It will be removed in ESPHome 2027.5.0.
 """
@@ -92,8 +92,10 @@ async def setup_st7735(var: MockObj, config: ConfigType) -> None:


 async def to_code(config: ConfigType) -> None:
+    # Remove before 2027.5.0
    LOGGER.warning(
-        "The 'st7735' component is deprecated, it is recommended to use 'mipi_spi' instead."
+        "The 'st7735' component is deprecated and will be removed in ESPHome 2027.5.0, "
+        "migrate to 'mipi_spi' instead."
    )
    var = cg.new_Pvariable(
        config[CONF_ID],
@@ -7,4 +7,5 @@ st7789v_ns = cg.esphome_ns.namespace("st7789v")
 DEPRECATED_COMPONENT = """
 The 'st7789v' component is deprecated and no new functionality will be added to it.
 PRs should target the newer and more performant 'mipi_spi' component.
+It will be removed in ESPHome 2027.5.0.
 """
@@ -183,8 +183,10 @@ FINAL_VALIDATE_SCHEMA = spi.final_validate_device_schema(


 async def to_code(config: ConfigType) -> None:
+    # Remove before 2027.5.0
    LOGGER.warning(
-        "The 'st7789v' component is deprecated, it is recommended to use 'mipi_spi' instead."
+        "The 'st7789v' component is deprecated and will be removed in ESPHome 2027.5.0, "
+        "migrate to 'mipi_spi' instead."
    )
    var = cg.new_Pvariable(config[CONF_ID])
    await display.register_display(var, config)
@@ -17,12 +17,22 @@ CONF_CHARGE_CURRENT = "charge_current"
 CONF_PRECHARGE_CURRENT = "precharge_current"
 CONF_CHARGE_ENABLED = "charge_enabled"
 CONF_ENABLE_ADC = "enable_adc"
+CONF_I2C_WATCHDOG_TIMEOUT = "i2c_watchdog_timeout"

 sy6970_ns = cg.esphome_ns.namespace("sy6970")
 SY6970Component = sy6970_ns.class_(
    "SY6970Component", cg.PollingComponent, i2c.I2CDevice
 )
 SY6970Listener = sy6970_ns.class_("SY6970Listener")
+I2CWatchdogTimeout = sy6970_ns.enum("I2CWatchdogTimeout")
+
+# REG07[5:4]; the component kicks the watchdog itself, so the chip's 40S default can stay on
+I2C_WATCHDOG_TIMEOUTS = {
+    "DISABLED": I2CWatchdogTimeout.I2C_WATCHDOG_DISABLED,
+    "40S": I2CWatchdogTimeout.I2C_WATCHDOG_40S,
+    "80S": I2CWatchdogTimeout.I2C_WATCHDOG_80S,
+    "160S": I2CWatchdogTimeout.I2C_WATCHDOG_160S,
+}

 CONFIG_SCHEMA = (
    cv.Schema(
@@ -43,6 +53,9 @@ CONFIG_SCHEMA = (
            ),
            cv.Optional(CONF_CHARGE_ENABLED, default=True): cv.boolean,
            cv.Optional(CONF_ENABLE_ADC, default=True): cv.boolean,
+            cv.Optional(CONF_I2C_WATCHDOG_TIMEOUT, default="40S"): cv.enum(
+                I2C_WATCHDOG_TIMEOUTS, upper=True
+            ),
        }
    )
    .extend(cv.polling_component_schema("5s"))
@@ -60,6 +73,7 @@ async def to_code(config: ConfigType) -> None:
        config[CONF_PRECHARGE_CURRENT],
        config[CONF_CHARGE_ENABLED],
        config[CONF_ENABLE_ADC],
+        config[CONF_I2C_WATCHDOG_TIMEOUT],
    )
    await cg.register_component(var, config)
    await i2c.register_i2c_device(var, config)
@@ -6,6 +6,25 @@ namespace esphome::sy6970 {

 ESPHOME_LOG_TAG(TAG, "sy6970");

+static const LogString *i2c_watchdog_timeout_to_string(I2CWatchdogTimeout timeout) {
+  switch (timeout) {
+    case I2C_WATCHDOG_DISABLED:
+      return LOG_STR("Disabled");
+    case I2C_WATCHDOG_40S:
+      return LOG_STR("40s");
+    case I2C_WATCHDOG_80S:
+      return LOG_STR("80s");
+    case I2C_WATCHDOG_160S:
+      return LOG_STR("160s");
+    default:
+      return LOG_STR("Unknown");
+  }
+}
+
+static constexpr uint32_t I2C_WATCHDOG_KICK_INTERVAL_ID = 0;
+// Well under the 40 s default, so a failed kick or a timeout the chip did not accept still leaves margin
+static constexpr uint32_t I2C_WATCHDOG_KICK_INTERVAL_MS = 10000;
+
 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
@@ -51,6 +70,11 @@ void SY6970Component::setup() {
    ESP_LOGW(TAG, "Unexpected chip ID: 0x%02X (expected 0x00)", chip_id);
  }

+  // Service the watchdog first, so the settings below are not reverted while they are written
+  ESP_LOGV(TAG, "Setting I2C watchdog timeout to %s",
+           LOG_STR_ARG(i2c_watchdog_timeout_to_string(this->i2c_watchdog_timeout_)));
+  this->set_i2c_watchdog_timeout(this->i2c_watchdog_timeout_);
+
  // 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_);
@@ -85,9 +109,11 @@ void SY6970Component::dump_config() {
                "  Charge Current: %u mA\n"
                "  Precharge Current: %u mA\n"
                "  Charge Enabled: %s\n"
-                "  ADC Enabled: %s",
+                "  ADC Enabled: %s\n"
+                "  I2C Watchdog Timeout: %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_));
+                this->precharge_current_, ONOFF(this->charge_enabled_), ONOFF(this->enable_adc_),
+                LOG_STR_ARG(i2c_watchdog_timeout_to_string(this->i2c_watchdog_timeout_)));
  LOG_I2C_DEVICE(this);
  LOG_UPDATE_INTERVAL(this);
  if (this->is_failed()) {
@@ -198,4 +224,44 @@ void SY6970Component::set_enable_adc_measure(bool enabled) {
  this->update_register_(SY6970_REG_ADC_CONTROL, 0xC0, enabled ? 0xC0 : 0x00);
 }

+void SY6970Component::set_i2c_watchdog_timeout(I2CWatchdogTimeout timeout) {
+  if (this->is_failed())
+    return;
+
+  if (timeout != I2C_WATCHDOG_DISABLED) {
+    // Changing the timeout does not restart the chip's timer, which may be close to expiring
+    this->reset_i2c_watchdog();
+  }
+
+  // REG07 bits 5:4 (WATCHDOG[1:0])
+  bool written = this->update_register_(SY6970_REG_TIMER_CONTROL, 0x30, static_cast<uint8_t>(timeout) << 4);
+  if (!written) {
+    ESP_LOGW(TAG, "Failed to set I2C watchdog timeout to %s", LOG_STR_ARG(i2c_watchdog_timeout_to_string(timeout)));
+  }
+
+  if (timeout == I2C_WATCHDOG_DISABLED && written) {
+    this->i2c_watchdog_timeout_ = timeout;
+    this->cancel_interval(I2C_WATCHDOG_KICK_INTERVAL_ID);
+    return;
+  }
+  if (timeout != I2C_WATCHDOG_DISABLED) {
+    this->i2c_watchdog_timeout_ = timeout;
+  }
+  // Keeps kicking after a failed write too: the chip may still be on its 40 s default
+  this->set_interval(I2C_WATCHDOG_KICK_INTERVAL_ID, I2C_WATCHDOG_KICK_INTERVAL_MS,
+                     [this]() { this->reset_i2c_watchdog(); });
+}
+
+bool SY6970Component::reset_i2c_watchdog() {
+  if (this->is_failed())
+    return false;
+
+  // WD_RST, self-clearing
+  if (!this->update_register_(SY6970_REG_SYS_CONTROL, 0x40, 0x40)) {
+    ESP_LOGW(TAG, "I2C watchdog reset failed, settings may revert");
+    return false;
+  }
+  return true;
+}
+
 }  // namespace esphome::sy6970
@@ -62,6 +62,15 @@ enum ChargeStatus {
  CHARGE_STATUS_CHARGE_DONE = 3,
 };

+// REG07[5:4]. When the watchdog elapses the chip reverts CHG_CONFIG and STAT_DIS to their defaults,
+// so an enabled watchdog is kicked on its own interval.
+enum I2CWatchdogTimeout {
+  I2C_WATCHDOG_DISABLED = 0,
+  I2C_WATCHDOG_40S = 1,
+  I2C_WATCHDOG_80S = 2,
+  I2C_WATCHDOG_160S = 3,
+};
+
 // Structure to hold all register data read in one transaction
 struct SY6970Data {
  uint8_t registers[21];  // Registers 0x00-0x14 (includes unused 0x0F, 0x10)
@@ -76,14 +85,16 @@ class SY6970Listener {
 class SY6970Component final : 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)
+                  uint16_t precharge_current, bool charge_enabled, bool enable_adc,
+                  I2CWatchdogTimeout i2c_watchdog_timeout)
      : 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) {}
+        enable_adc_(enable_adc),
+        i2c_watchdog_timeout_(i2c_watchdog_timeout) {}
  void setup() override;
  void dump_config() override;
  void update() override;
@@ -99,6 +110,10 @@ class SY6970Component final : public PollingComponent, public i2c::I2CDevice {
  void set_charge_enabled(bool enabled);
  void set_led_enabled(bool enabled);
  void set_enable_adc_measure(bool enabled = true);
+  void set_i2c_watchdog_timeout(I2CWatchdogTimeout timeout);
+
+  /// Kick the I2C watchdog (REG03 bit 6); runs on its own interval while enabled. Returns false when not written.
+  bool reset_i2c_watchdog();

 protected:
  bool read_all_registers_();
@@ -116,6 +131,7 @@ class SY6970Component final : public PollingComponent, public i2c::I2CDevice {
  uint16_t precharge_current_;
  bool charge_enabled_;
  bool enable_adc_;
+  I2CWatchdogTimeout i2c_watchdog_timeout_;
 };

 }  // namespace esphome::sy6970
@@ -2,12 +2,13 @@

 #include "esphome/components/logger/logger.h"
 #include "esphome/core/application.h"
+#include "esphome/core/hal.h"
 #include "esphome/core/time.h"

 namespace esphome::syslog {

 // Map log levels to syslog severity using an array, indexed by ESPHome log level (1-7)
-constexpr int LOG_LEVEL_TO_SYSLOG_SEVERITY[] = {
+static constexpr uint8_t LOG_LEVEL_TO_SYSLOG_SEVERITY[] PROGMEM = {
    3,  // NONE
    3,  // ERROR
    4,  // WARN
@@ -35,7 +36,7 @@ void Syslog::log_(const int level, const char *tag, const char *message, size_t
  // Syslog PRI calculation: facility * 8 + severity
  int severity = 7;
  if ((unsigned) level <= 7) {
-    severity = LOG_LEVEL_TO_SYSLOG_SEVERITY[level];
+    severity = progmem_read_byte(&LOG_LEVEL_TO_SYSLOG_SEVERITY[level]);
  }
  int pri = this->facility_ * 8 + severity;

@@ -27,7 +27,10 @@ from esphome.const import (
    CONF_TARGET_TEMPERATURE,
    CONF_TARGET_TEMPERATURE_HIGH,
    CONF_TARGET_TEMPERATURE_LOW,
+    CONF_UNIT_OF_MEASUREMENT,
 )
+from esphome.core.entity_helpers import entity_temperature_unit
+from esphome.cpp_types import TEMPERATURE_UNITS
 from esphome.types import ConfigType

 from .. import template_ns
@@ -162,6 +165,13 @@ def _resolve_supports(config: ConfigType) -> ConfigType:
    return config


+TEMPERATURE_KEYS = (
+    CONF_TARGET_TEMPERATURE,
+    CONF_TARGET_TEMPERATURE_LOW,
+    CONF_TARGET_TEMPERATURE_HIGH,
+)
+
+
 def _validate_initial_state(config: ConfigType) -> ConfigType:
    # Climate keeps target_temperature and target_temperature_low in a union, so writing the wrong
    # one of the pair corrupts the setpoint with no runtime complaint.
@@ -191,6 +201,10 @@ def _validate_initial_state(config: ConfigType) -> ConfigType:
            f"'{CONF_TARGET_HUMIDITY}' requires '{CONF_SUPPORTS_TARGET_HUMIDITY}' to be enabled",
            path=[CONF_INITIAL_STATE, CONF_TARGET_HUMIDITY],
        )
+    unit = entity_temperature_unit(config)
+    for key in TEMPERATURE_KEYS:
+        if isinstance(value := initial_state.get(key), tuple):
+            initial_state[key] = cv.convert_temperature(*value, unit)
    return config


@@ -200,9 +214,9 @@ INITIAL_STATE_SCHEMA = cv.All(
    cv.Schema(
        {
            cv.Optional(CONF_MODE): climate.validate_climate_mode,
-            cv.Optional(CONF_TARGET_TEMPERATURE): cv.temperature,
-            cv.Optional(CONF_TARGET_TEMPERATURE_LOW): cv.temperature,
-            cv.Optional(CONF_TARGET_TEMPERATURE_HIGH): cv.temperature,
+            cv.Optional(CONF_TARGET_TEMPERATURE): cv.temperature_with_unit,
+            cv.Optional(CONF_TARGET_TEMPERATURE_LOW): cv.temperature_with_unit,
+            cv.Optional(CONF_TARGET_TEMPERATURE_HIGH): cv.temperature_with_unit,
            cv.Optional(CONF_TARGET_HUMIDITY): cv.percentage_int,
            cv.Exclusive(CONF_FAN_MODE, "fan_mode"): climate.validate_climate_fan_mode,
            cv.Exclusive(
@@ -217,7 +231,7 @@ INITIAL_STATE_SCHEMA = cv.All(
 )

 CONFIG_SCHEMA = cv.All(
-    climate.climate_schema(TemplateClimate)
+    climate.climate_schema(TemplateClimate, temperature_unit=True)
    .extend(
        {
            cv.Optional(CONF_SENSOR): cv.use_id(sensor.Sensor),
@@ -295,6 +309,8 @@ async def to_code(config: ConfigType) -> None:
    var = cg.new_Pvariable(config[CONF_ID])
    await cg.register_component(var, config)
    await climate.register_climate(var, config)
+    if (unit := config.get(CONF_UNIT_OF_MEASUREMENT)) is not None:
+        cg.add(var.set_temperature_unit(TEMPERATURE_UNITS[unit]))

    if (sens := config.get(CONF_SENSOR)) is not None:
        cg.add(var.set_sensor(await cg.get_variable(sens)))
@@ -381,11 +397,19 @@ CLIMATE_TEMPLATE_PUBLISH_ACTION_SCHEMA = cv.All(
    cv.Schema(
        {
            cv.GenerateID(): cv.use_id(TemplateClimate),
-            cv.Optional(CONF_CURRENT_TEMPERATURE): cv.templatable(cv.temperature),
+            cv.Optional(CONF_CURRENT_TEMPERATURE): cv.templatable(
+                cv.temperature_with_unit
+            ),
            cv.Optional(CONF_CURRENT_HUMIDITY): cv.templatable(cv.percentage_int),
-            cv.Optional(CONF_TARGET_TEMPERATURE): cv.templatable(cv.temperature),
-            cv.Optional(CONF_TARGET_TEMPERATURE_LOW): cv.templatable(cv.temperature),
-            cv.Optional(CONF_TARGET_TEMPERATURE_HIGH): cv.templatable(cv.temperature),
+            cv.Optional(CONF_TARGET_TEMPERATURE): cv.templatable(
+                cv.temperature_with_unit
+            ),
+            cv.Optional(CONF_TARGET_TEMPERATURE_LOW): cv.templatable(
+                cv.temperature_with_unit
+            ),
+            cv.Optional(CONF_TARGET_TEMPERATURE_HIGH): cv.templatable(
+                cv.temperature_with_unit
+            ),
            cv.Optional(CONF_TARGET_HUMIDITY): cv.templatable(cv.percentage_int),
            cv.Optional(CONF_MODE): cv.templatable(climate.validate_climate_mode),
            cv.Optional(CONF_ACTION): cv.templatable(climate.validate_climate_action),
@@ -414,15 +438,29 @@ automation.register_apply_action(
    "climate.template.publish",
    CLIMATE_TEMPLATE_PUBLISH_ACTION_SCHEMA,
    automation.ApplyField(
-        CONF_CURRENT_TEMPERATURE, "current_temperature = {}", cg.float_
+        CONF_CURRENT_TEMPERATURE,
+        "current_temperature = {}",
+        cg.float_,
+        climate.temperature_in_entity_unit,
    ),
    automation.ApplyField(CONF_CURRENT_HUMIDITY, "current_humidity = {}", cg.float_),
-    automation.ApplyField(CONF_TARGET_TEMPERATURE, "set_target_temperature", cg.float_),
    automation.ApplyField(
-        CONF_TARGET_TEMPERATURE_LOW, "set_target_temperature_low", cg.float_
+        CONF_TARGET_TEMPERATURE,
+        "set_target_temperature",
+        cg.float_,
+        climate.temperature_in_entity_unit,
    ),
    automation.ApplyField(
-        CONF_TARGET_TEMPERATURE_HIGH, "set_target_temperature_high", cg.float_
+        CONF_TARGET_TEMPERATURE_LOW,
+        "set_target_temperature_low",
+        cg.float_,
+        climate.temperature_in_entity_unit,
+    ),
+    automation.ApplyField(
+        CONF_TARGET_TEMPERATURE_HIGH,
+        "set_target_temperature_high",
+        cg.float_,
+        climate.temperature_in_entity_unit,
    ),
    automation.ApplyField(CONF_TARGET_HUMIDITY, "set_target_humidity", cg.float_),
    automation.ApplyField(CONF_MODE, "set_mode", climate.ClimateMode),
@@ -22,6 +22,7 @@ class TemplateClimate final : public climate::Climate, public Component {
  climate::ClimateTraits traits() override { return this->traits_; }

  void add_feature_flags(uint32_t flags) { this->traits_.add_feature_flags(flags); }
+  void set_temperature_unit(TemperatureUnit unit) { this->traits_.set_temperature_unit(unit); }

 #ifdef USE_SENSOR
  // The matching feature flag is added from codegen, so the configuration alone decides it.
@@ -12,9 +12,12 @@ from esphome.const import (
    CONF_SET_ACTION,
    CONF_SUPPORTED_MODES,
    CONF_TARGET_TEMPERATURE,
+    CONF_UNIT_OF_MEASUREMENT,
 )
 from esphome.core import ID
+from esphome.core.entity_helpers import entity_temperature_unit_of_id
 from esphome.cpp_generator import MockObj, TemplateArgsType
+from esphome.cpp_types import TEMPERATURE_UNITS
 from esphome.types import ConfigType

 from .. import template_ns
@@ -39,7 +42,7 @@ RESTORE_MODES = {
 }

 CONFIG_SCHEMA = (
-    water_heater.water_heater_schema(TemplateWaterHeater)
+    water_heater.water_heater_schema(TemplateWaterHeater, temperature_unit=True)
    .extend(
        {
            cv.Optional(CONF_OPTIMISTIC, default=True): cv.boolean,
@@ -65,6 +68,8 @@ 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)
+    if (unit := config.get(CONF_UNIT_OF_MEASUREMENT)) is not None:
+        cg.add(var.set_temperature_unit(TEMPERATURE_UNITS[unit]))

    cg.add(var.set_optimistic(config[CONF_OPTIMISTIC]))

@@ -125,8 +130,12 @@ async def to_code(config: ConfigType) -> None:
    cv.Schema(
        {
            cv.GenerateID(): cv.use_id(TemplateWaterHeater),
-            cv.Optional(CONF_CURRENT_TEMPERATURE): cv.templatable(cv.temperature),
-            cv.Optional(CONF_TARGET_TEMPERATURE): cv.templatable(cv.temperature),
+            cv.Optional(CONF_CURRENT_TEMPERATURE): cv.templatable(
+                cv.temperature_with_unit
+            ),
+            cv.Optional(CONF_TARGET_TEMPERATURE): cv.templatable(
+                cv.temperature_with_unit
+            ),
            cv.Optional(CONF_MODE): cv.templatable(
                water_heater.validate_water_heater_mode
            ),
@@ -145,13 +154,17 @@ async def water_heater_template_publish_to_code(
    var = cg.new_Pvariable(action_id, template_arg)
    await cg.register_parented(var, config[CONF_ID])

-    if current_temp := config.get(CONF_CURRENT_TEMPERATURE):
-        template_ = await cg.templatable(current_temp, args, cg.float_)
-        cg.add(var.set_current_temperature(template_))
-
-    if target_temp := config.get(CONF_TARGET_TEMPERATURE):
-        template_ = await cg.templatable(target_temp, args, cg.float_)
-        cg.add(var.set_target_temperature(template_))
+    # A static temperature is in the unit of the water heater it is published to
+    unit = entity_temperature_unit_of_id(config[CONF_ID])
+    for key, setter in (
+        (CONF_CURRENT_TEMPERATURE, var.set_current_temperature),
+        (CONF_TARGET_TEMPERATURE, var.set_target_temperature),
+    ):
+        if (value := config.get(key)) is None:
+            continue
+        if isinstance(value, tuple):
+            value = cv.convert_temperature(*value, unit)
+        cg.add(setter(await cg.templatable(value, args, cg.float_)))

    if mode := config.get(CONF_MODE):
        template_ = await cg.templatable(mode, args, water_heater.WaterHeaterMode)
@@ -32,6 +32,7 @@ water_heater::WaterHeaterTraits TemplateWaterHeater::traits() {
  }

  traits.set_supports_current_temperature(true);
+  traits.set_temperature_unit(this->temperature_unit_);
  if (this->target_temperature_f_.has_value()) {
    traits.add_feature_flags(water_heater::WATER_HEATER_SUPPORTS_TARGET_TEMPERATURE);
  }
@@ -29,6 +29,7 @@ class TemplateWaterHeater final : public Component, public water_heater::WaterHe

  void set_optimistic(bool optimistic) { this->optimistic_ = optimistic; }
  void set_restore_mode(TemplateWaterHeaterRestoreMode restore_mode) { this->restore_mode_ = restore_mode; }
+  void set_temperature_unit(TemperatureUnit unit) { this->temperature_unit_ = unit; }
  void set_supported_modes(const std::initializer_list<water_heater::WaterHeaterMode> &modes) {
    this->supported_modes_ = modes;
  }
@@ -54,6 +55,7 @@ class TemplateWaterHeater final : public Component, public water_heater::WaterHe
  TemplateLambda<bool> away_f_;
  TemplateLambda<bool> is_on_f_;
  TemplateWaterHeaterRestoreMode restore_mode_{WATER_HEATER_NO_RESTORE};
+  TemperatureUnit temperature_unit_{TemperatureUnit::CELSIUS};
  water_heater::WaterHeaterModeMask supported_modes_;
  bool optimistic_{true};
 };
@@ -240,12 +240,6 @@ def validate_thermostat(config: ConfigType) -> ConfigType:
            CONF_SUPPLEMENTAL_HEATING_ACTION,
            CONF_SUPPLEMENTAL_HEATING_DELTA,
        ],
-        CONF_MIN_COOLING_OFF_TIME: [
-            CONF_COOL_ACTION,
-        ],
-        CONF_MIN_COOLING_RUN_TIME: [
-            CONF_COOL_ACTION,
-        ],
        CONF_MIN_FANNING_OFF_TIME: [
            CONF_FAN_ONLY_ACTION,
        ],
@@ -284,6 +278,17 @@ def validate_thermostat(config: ConfigType) -> ConfigType:
                    f"{req_trigger} must be defined to use {config_trigger}"
                )

+    # Dry mode runs on the cooling timers, so a dehumidifier needs no cool_action.
+    for timer in (CONF_MIN_COOLING_OFF_TIME, CONF_MIN_COOLING_RUN_TIME):
+        if (
+            timer in config
+            and CONF_COOL_ACTION not in config
+            and CONF_DRY_ACTION not in config
+        ):
+            raise cv.Invalid(
+                f"{CONF_COOL_ACTION} or {CONF_DRY_ACTION} must be defined to use {timer}"
+            )
+
    if CONF_FAN_ONLY_ACTION in config:
        # determine validation requirements based on fan_only_action_uses_fan_mode_timer setting
        if config[CONF_FAN_ONLY_ACTION_USES_FAN_MODE_TIMER] is True:
--- a/Show More
+++ b/Show More
Author	SHA1	Message	Date
J. Nick Koston	6a0e0358f8	Share the entity unit lookup and reject unknown temperature units	2026-10-13 21:01:57 -10:00
J. Nick Koston	fb04ec0928	Find the action target's config through its declared id path	2026-10-13 20:34:11 -10:00
J. Nick Koston	08c1659d5b	Convert climate.control and water_heater.template.publish temperatures into the entity unit	2026-10-13 20:06:05 -10:00
J. Nick Koston	41dad01e6e	Keep the unit setter in the template platforms and convert initial_state and publish temperatures into the entity unit	2026-10-13 19:09:26 -10:00
J. Nick Koston	34f91e79b5	Merge branch 'dev' into wire-uom-to-climate-and-water-heater-schemas	2026-10-13 18:53:33 -10:00
J. Nick Koston	e41d16ba7e	[haier] Keep the alarm message table in flash (#20641 )	2026-10-14 03:23:28 +00:00
J. Nick Koston	5171113c87	[core] Let PROGMEM_STRING_TABLE hold more than 255 bytes (#20646 )	2026-10-13 17:17:48 -10:00
techdregsandJ. Nick Koston	5718e4b779	[tmp102] Add text sensor for diagnostics (#20629 ) Co-authored-by: J. Nick Koston <nick@koston.org>	2026-10-13 17:06:56 -10:00
J. Nick Koston	40e12cd0d8	[image] Add CodSpeed benchmarks for image, runtime image and display block draws (#20649 )	2026-10-13 17:01:47 -10:00
Brandon HarveyandJ. Nick Koston	07029d0077	[sen6x] Add measurement control and maintenance actions (#18783 ) Co-authored-by: J. Nick Koston <nick@home-assistant.io>	2026-10-14 15:47:31 +13:00
Christopher Reimer	bb1119d83f	[esp32_can] Support 20 kbit/s on ESP32 revision 2 or later (#20426 )	2026-10-13 22:34:03 -04:00
willumpie82Willem OldemansClaude Sonnet 5 J. Nick Koston J. Nick Koston	7b591b26d6	[sy6970] Service the I2C watchdog so charge/LED settings persist (#19424 ) Co-authored-by: Willem Oldemans <> Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com> Co-authored-by: J. Nick Koston <nick@koston.org> Co-authored-by: J. Nick Koston <nick@home-assistant.io>	2026-10-13 16:19:58 -10:00
Andres Signes Grimalt J. Nick Koston J. Nick Koston	f45e6f0bf4	[midea] Add display_control and send the display toggle over UART without a transmitter (#18671 ) Co-authored-by: J. Nick Koston <nick@koston.org> Co-authored-by: J. Nick Koston <nick@home-assistant.io>	2026-10-13 16:03:18 -10:00
Keith BurzinskiandClaude Opus 5.5	4b8af08155	[network] Notify listeners when the active interface changes (#20684 ) Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-13 20:57:59 -05:00
dependabot[bot]esphome[bot]Jonathan Swoboda	613973b432	Bump ruff from 0.16.10 to 0.17.0 (#20694 ) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: esphome[bot] <115708604+esphome[bot]@users.noreply.github.com> Co-authored-by: Jonathan Swoboda <154711427+swoboda1337@users.noreply.github.com>	2026-10-13 21:53:44 -04:00
dependabot[bot]	9ee4314bc2	Bump esptool from 5.4.0 to 5.5.0 (#20693 ) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-10-13 15:41:30 -10:00
fredkotzeandJ. Nick Koston	59f55dbe9e	[epaper_spi] Add Waveshare 2.13in-G (JD79660) display models (#18141 ) Co-authored-by: J. Nick Koston <nick@home-assistant.io>	2026-10-13 15:40:28 -10:00
dependabot[bot]	8fce95454a	Bump github/codeql-action/init from 4.38.2 to 4.38.3 (#20701 ) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-10-13 15:39:49 -10:00
dependabot[bot]	16134ee993	Bump astral-sh/setup-uv from 10.2.0 to 10.3.0 (#20704 ) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-10-13 15:39:38 -10:00
dependabot[bot]	bc39d56bb4	Bump CodSpeedHQ/action from 5.4.0 to 5.4.2 (#20705 ) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-10-13 15:39:29 -10:00
dependabot[bot]	c5522abc71	Bump github/codeql-action/analyze from 4.38.2 to 4.38.3 (#20699 ) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-10-13 21:39:11 -04:00
dependabot[bot]	7cb5906d2a	Bump actions/upload-artifact from 7.0.1 to 7.0.2 (#20702 ) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-10-14 01:38:42 +00:00
dependabot[bot]	d452dbce30	Bump actions/download-artifact from 8.0.1 to 8.0.2 (#20703 ) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-10-14 01:38:39 +00:00
dependabot[bot]	81e5b50087	Bump backports-zstd from 1.7.0 to 1.8.0 (#20695 ) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-10-13 15:38:35 -10:00
dependabot[bot]	426a4a2dce	Bump filelock from 4.0.12 to 4.1.0 (#20696 ) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-10-13 15:38:26 -10:00
dependabot[bot]andesphome[bot]	c95c17c4e7	Bump pyupgrade from 3.21.2 to 3.22.0 (#20698 ) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: esphome[bot] <115708604+esphome[bot]@users.noreply.github.com>	2026-10-13 15:38:17 -10:00
dependabot[bot]	576d3325fe	Bump astral-sh/setup-uv from 10.2.0 to 10.3.0 in /.github/actions/restore-python (#20700 ) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-10-13 15:37:47 -10:00
dependabot[bot]	c9cf0ad92e	Bump platformdirs from 4.12.3 to 4.12.4 (#20697 ) Signed-off-by: dependabot[bot] <support@github.com> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>	2026-10-13 21:37:36 -04:00
Felipe Guedes	f505212e64	[epaper_spi] Add Waveshare 2.66" e-Paper Module (B) support (#20546 )	2026-10-13 15:03:05 -10:00
J. Nick Koston	52a5e6a007	[rpi_dpi_rgb] Set removal of the deprecated component for 2027.5.0 (#20691 )	2026-10-14 13:32:18 +13:00
J. Nick Koston	3b261d2cf0	[st7789v] Set removal of the deprecated component for 2027.5.0 (#20689 )	2026-10-14 13:30:52 +13:00
J. Nick Koston	9238fcc727	[st7735] Set removal of the deprecated component for 2027.5.0 (#20688 )	2026-10-14 13:30:21 +13:00
J. Nick Koston	96902cc122	[qspi_dbi] Set removal of the deprecated component for 2027.5.0 (#20690 )	2026-10-14 13:29:52 +13:00
J. Nick Koston	95711d83d1	[ili9xxx] Set removal of the deprecated component for 2027.5.0 (#20687 )	2026-10-14 13:29:29 +13:00
Panoplian	3cdcf0417a	[lvgl] Make the list_outside_block tests work offline (#20676 )	2026-10-13 13:31:08 -10:00
J. Nick Koston	c6e90de262	[ci] Catch out-of-class member log tags and keep midea's in flash (#20674 )	2026-10-14 12:21:24 +13:00
J. Nick Koston	92f6ab8367	[ci] Lint log tags in headers and core (#20668 )	2026-10-14 12:21:24 +13:00
J. Nick Koston	f61955baa2	[core] Declare the remaining log tags with ESPHOME_LOG_TAG (#20666 )	2026-10-14 12:21:23 +13:00
J. Nick Koston	36e1d831d3	[core] Add a decimal fast path to `parse_number<float>` (#20639 )	2026-10-14 12:18:35 +13:00
J. Nick Koston	63616bf642	[rtttl] Play a configured song from static storage without copying it (#19569 )	2026-10-14 12:06:27 +13:00
Keith Burzinski Claude Opus 5.5 J. Nick Koston	d275926f65	[mdns] Advertise the connected interface in the network TXT record (#20673 ) Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> Co-authored-by: J. Nick Koston <nick@koston.org>	2026-10-13 17:55:22 -05:00
Andrej Friesen	f265c46c21	[PCA9505] Add PCA9505/PCA9506 40-channel GPIO expander (#20667 )	2026-10-13 12:50:43 -10:00
Frédéric MetrichandClaude Opus 5.5	7d735f0677	[emontx] Lock the emonTx on reboot when its firmware supports it (#20621 ) Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>	2026-10-13 12:37:09 -10:00
Remco van Essen	5c23a827b6	[tmc2209] Add current and diagnostic sensors (#20638 )	2026-10-13 12:35:55 -10:00
Jonathan Swoboda	e265c0c0fc	[core] Sync the static analysis dependency pins with the code (#20681 )	2026-10-13 12:30:42 -10:00
J. Nick Koston	a0c7d754cb	[syslog] Keep the log level to severity table in flash (#20662 )	2026-10-13 12:22:35 -10:00
Jesse Hills	a6dbd72c53	Merge branch 'beta' into dev	2026-10-14 11:15:09 +13:00
Jesse Hills	9d530f5c56	Merge pull request #20680 from esphome/bump-2026.10.0b4 2026.10.0b4	2026-10-14 11:14:49 +13:00
Panoplian	6562c49686	[thermostat] Allow a dry-only thermostat without cool_action (#20682 )	2026-10-13 12:08:13 -10:00
guillempages	a97ce3a201	[image] Fix pillow deprecation warning (#20679 )	2026-10-13 11:58:21 -10:00
Jesse Hills	5a78f636b9	Bump version to 2026.10.0b4	2026-10-14 10:43:50 +13:00
tomaszduda23andClaude	53d504137b	[nrf52] Accept S140 7.2.0 and 7.3.0 in the sd140_v7 DFU package (#20661 ) Co-authored-by: Claude <noreply@anthropic.com>	2026-10-14 10:43:49 +13:00
Frédéric Metrich Claude Opus 5.5 J. Nick Koston	bb0546fc0b	[script] Keep the running script.wait item out of the queue while its chain runs (#20570 ) Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> Co-authored-by: J. Nick Koston <nick@koston.org>	2026-10-14 10:43:49 +13:00
emes30andJ. Nick Koston	b43630cf8e	[rp2_pio] Use pioasm 4.1.0 so PIO programs run on RP2350 (#19260 ) Co-authored-by: J. Nick Koston <nick@home-assistant.io>	2026-10-14 10:43:49 +13:00
Firat HajiyevandFirat17aze	c9664d4e42	[wifi] Reject unsupported WPA3 on ESP8266 (#20592 ) Co-authored-by: Firat17aze <187820330+Firat17aze@users.noreply.github.com>	2026-10-14 10:43:49 +13:00
Kevin Ahrendt	39ea6a3220	[audio] Bump microFLAC to v0.3.0 (#20591 )	2026-10-14 10:43:49 +13:00
J. Nick Koston	f4a6d6f18b	[core] Create the PlatformIO HTTP cache dir before the prefetch resolve threads run (#20579 )	2026-10-14 10:43:49 +13:00
esphome[bot]	6c24d4aa43	Bump aioesphomeapi from 46.9.0 to 46.10.0 (#20563 )	2026-10-14 10:43:49 +13:00
J. Nick Koston	0dc1d3b5a1	[toshiba] Move the lookup tables to PROGMEM (#20636 )	2026-10-13 11:25:18 -10:00
tomaszduda23andClaude	42341d05f9	[nrf52] Accept S140 7.2.0 and 7.3.0 in the sd140_v7 DFU package (#20661 ) Co-authored-by: Claude <noreply@anthropic.com>	2026-10-13 11:12:08 -10:00
J. Nick Koston	f941fee5ed	[homeassistant] Add sensor platform benchmarks (#20637 )	2026-10-13 11:10:14 -10:00
Bonne Eggleston	8721976066	[epaper_spi] Abandon an update when the busy pin never clears (#20555 )	2026-10-14 07:47:09 +11:00
Bonne Eggleston	05bf7d3440	[epaper_spi] Write pixel blocks straight into mono buffers (#20552 )	2026-10-14 07:40:56 +11:00
Johan Henkens	de1e56cd15	[climate,water_heater] Wire unit_of_measurement into config schema and code generation Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com> (cherry picked from commit 0f5faecff4b7ea0a58310fd4b62f29a153afe509)	2026-07-23 17:47:36 -07:00
Johan Henkens	f9a01bef46	[config_validation] Add temperature_with_unit, visual_temperature_step, and validate_temperature_config	2026-07-23 17:29:00 -07:00