Add additional coverage for util and writer (#10683)

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: pre-commit-ci-lite[bot] <117423508+pre-commit-ci-lite[bot]@users.noreply.github.com>

.ai/instructions.md

@@ -9,7 +9,7 @@ This document provides essential context for AI models interacting with this pro
 
 ## 2. Core Technologies & Stack
 
-*   **Languages:** Python (>=3.10), C++ (gnu++20)
+*   **Languages:** Python (>=3.11), C++ (gnu++20)
 *   **Frameworks & Runtimes:** PlatformIO, Arduino, ESP-IDF.
 *   **Build Systems:** PlatformIO is the primary build system. CMake is used as an alternative.
 *   **Configuration:** YAML.
@@ -38,7 +38,7 @@ This document provides essential context for AI models interacting with this pro
     5.  **Dashboard** (`esphome/dashboard/`): A web-based interface for device configuration, management, and OTA updates.
 
 *   **Platform Support:**
-    1.  **ESP32** (`components/esp32/`): Espressif ESP32 family. Supports multiple variants (S2, S3, C3, etc.) and both IDF and Arduino frameworks.
+    1.  **ESP32** (`components/esp32/`): Espressif ESP32 family. Supports multiple variants (Original, C2, C3, C5, C6, H2, P4, S2, S3) with ESP-IDF framework. Arduino framework supports only a subset of the variants (Original, C3, S2, S3).
     2.  **ESP8266** (`components/esp8266/`): Espressif ESP8266. Arduino framework only, with memory constraints.
     3.  **RP2040** (`components/rp2040/`): Raspberry Pi Pico/RP2040. Arduino framework with PIO (Programmable I/O) support.
     4.  **LibreTiny** (`components/libretiny/`): Realtek and Beken chips. Supports multiple chip families and auto-generated components.
@@ -150,7 +150,8 @@ This document provides essential context for AI models interacting with this pro
 *   **Configuration Validation:**
     *   **Common Validators:** `cv.int_`, `cv.float_`, `cv.string`, `cv.boolean`, `cv.int_range(min=0, max=100)`, `cv.positive_int`, `cv.percentage`.
     *   **Complex Validation:** `cv.All(cv.string, cv.Length(min=1, max=50))`, `cv.Any(cv.int_, cv.string)`.
-    *   **Platform-Specific:** `cv.only_on(["esp32", "esp8266"])`, `cv.only_with_arduino`.
+    *   **Platform-Specific:** `cv.only_on(["esp32", "esp8266"])`, `esp32.only_on_variant(...)`, `cv.only_on_esp32`, `cv.only_on_esp8266`, `cv.only_on_rp2040`.
+    *   **Framework-Specific:** `cv.only_with_framework(...)`, `cv.only_with_arduino`, `cv.only_with_esp_idf`.
     *   **Schema Extensions:**
         ```python
         CONFIG_SCHEMA = cv.Schema({ ... })

.clang-tidy.hash

@@ -1 +1 @@
-6af8b429b94191fe8e239fcb3b73f7982d0266cb5b05ffbc81edaeac1bc8c273
+4368db58e8f884aff245996b1e8b644cc0796c0bb2fa706d5740d40b823d3ac9

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

@@ -17,7 +17,7 @@ runs:
   steps:
     - name: Set up Python ${{ inputs.python-version }}
       id: python
-      uses: actions/setup-python@v5.6.0
+      uses: actions/setup-python@v6.0.0
       with:
         python-version: ${{ inputs.python-version }}
     - name: Restore Python virtual environment

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

@@ -32,7 +32,7 @@ jobs:
           private-key: ${{ secrets.ESPHOME_GITHUB_APP_PRIVATE_KEY }}
 
       - name: Auto Label PR
-        uses: actions/github-script@v7.0.1
+        uses: actions/github-script@v8.0.0
         with:
           github-token: ${{ steps.generate-token.outputs.token }}
           script: |
@@ -105,7 +105,9 @@ jobs:
 
             // Calculate data from PR files
             const changedFiles = prFiles.map(file => file.filename);
-            const totalChanges = prFiles.reduce((sum, file) => sum + (file.additions || 0) + (file.deletions || 0), 0);
+            const totalAdditions = prFiles.reduce((sum, file) => sum + (file.additions || 0), 0);
+            const totalDeletions = prFiles.reduce((sum, file) => sum + (file.deletions || 0), 0);
+            const totalChanges = totalAdditions + totalDeletions;
 
             console.log('Current labels:', currentLabels.join(', '));
             console.log('Changed files:', changedFiles.length);
@@ -231,16 +233,21 @@ jobs:
             // Strategy: PR size detection
             async function detectPRSize() {
               const labels = new Set();
-              const testChanges = prFiles
-                .filter(file => file.filename.startsWith('tests/'))
-                .reduce((sum, file) => sum + (file.additions || 0) + (file.deletions || 0), 0);
-
-              const nonTestChanges = totalChanges - testChanges;
 
               if (totalChanges <= SMALL_PR_THRESHOLD) {
                 labels.add('small-pr');
+                return labels;
               }
 
+              const testAdditions = prFiles
+                .filter(file => file.filename.startsWith('tests/'))
+                .reduce((sum, file) => sum + (file.additions || 0), 0);
+              const testDeletions = prFiles
+                .filter(file => file.filename.startsWith('tests/'))
+                .reduce((sum, file) => sum + (file.deletions || 0), 0);
+
+              const nonTestChanges = (totalAdditions - testAdditions) - (totalDeletions - testDeletions);
+
               // Don't add too-big if mega-pr label is already present
               if (nonTestChanges > TOO_BIG_THRESHOLD && !isMegaPR) {
                 labels.add('too-big');
@@ -375,7 +382,7 @@ jobs:
               const labels = new Set();
 
               // Check for missing tests
-              if ((allLabels.has('new-component') || allLabels.has('new-platform')) && !allLabels.has('has-tests')) {
+              if ((allLabels.has('new-component') || allLabels.has('new-platform') || allLabels.has('new-feature')) && !allLabels.has('has-tests')) {
                 labels.add('needs-tests');
               }
 
@@ -412,10 +419,13 @@ jobs:
 
               // Too big message
               if (finalLabels.includes('too-big')) {
-                const testChanges = prFiles
+                const testAdditions = prFiles
                   .filter(file => file.filename.startsWith('tests/'))
-                  .reduce((sum, file) => sum + (file.additions || 0) + (file.deletions || 0), 0);
+                  .reduce((sum, file) => sum + (file.additions || 0), 0);
-                const nonTestChanges = totalChanges - testChanges;
+                const testDeletions = prFiles
+                  .filter(file => file.filename.startsWith('tests/'))
+                  .reduce((sum, file) => sum + (file.deletions || 0), 0);
+                const nonTestChanges = (totalAdditions - testAdditions) - (totalDeletions - testDeletions);
 
                 const tooManyLabels = finalLabels.length > MAX_LABELS;
                 const tooManyChanges = nonTestChanges > TOO_BIG_THRESHOLD;

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

@@ -23,7 +23,7 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v5.0.0
       - name: Set up Python
-        uses: actions/setup-python@v5.6.0
+        uses: actions/setup-python@v6.0.0
         with:
           python-version: "3.11"
 
@@ -47,7 +47,7 @@ jobs:
           fi
       - if: failure()
         name: Review PR
-        uses: actions/github-script@v7.0.1
+        uses: actions/github-script@v8.0.0
         with:
           script: |
             await github.rest.pulls.createReview({
@@ -70,7 +70,7 @@ jobs:
             esphome/components/api/api_pb2_service.*
       - if: success()
         name: Dismiss review
-        uses: actions/github-script@v7.0.1
+        uses: actions/github-script@v8.0.0
         with:
           script: |
             let reviews = await github.rest.pulls.listReviews({

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

@@ -23,7 +23,7 @@ jobs:
         uses: actions/checkout@v5.0.0
 
       - name: Set up Python
-        uses: actions/setup-python@v5.6.0
+        uses: actions/setup-python@v6.0.0
         with:
           python-version: "3.11"
 
@@ -41,7 +41,7 @@ jobs:
 
       - if: failure()
         name: Request changes
-        uses: actions/github-script@v7.0.1
+        uses: actions/github-script@v8.0.0
         with:
           script: |
             await github.rest.pulls.createReview({
@@ -54,7 +54,7 @@ jobs:
 
       - if: success()
         name: Dismiss review
-        uses: actions/github-script@v7.0.1
+        uses: actions/github-script@v8.0.0
         with:
           script: |
             let reviews = await github.rest.pulls.listReviews({

.github/workflows/ci-docker.yml

@@ -45,7 +45,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5.0.0
       - name: Set up Python
-        uses: actions/setup-python@v5.6.0
+        uses: actions/setup-python@v6.0.0
         with:
           python-version: "3.11"
       - name: Set up Docker Buildx

.github/workflows/ci.yml

@@ -42,7 +42,7 @@ jobs:
         run: echo key="${{ hashFiles('requirements.txt', 'requirements_test.txt', '.pre-commit-config.yaml') }}" >> $GITHUB_OUTPUT
       - name: Set up Python ${{ env.DEFAULT_PYTHON }}
         id: python
-        uses: actions/setup-python@v5.6.0
+        uses: actions/setup-python@v6.0.0
         with:
           python-version: ${{ env.DEFAULT_PYTHON }}
       - name: Restore Python virtual environment
@@ -156,7 +156,7 @@ jobs:
           . venv/bin/activate
           pytest -vv --cov-report=xml --tb=native -n auto tests --ignore=tests/integration/
       - name: Upload coverage to Codecov
-        uses: codecov/codecov-action@v5.4.3
+        uses: codecov/codecov-action@v5.5.1
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
       - name: Save Python virtual environment cache
@@ -217,7 +217,7 @@ jobs:
         uses: actions/checkout@v5.0.0
       - name: Set up Python 3.13
         id: python
-        uses: actions/setup-python@v5.6.0
+        uses: actions/setup-python@v6.0.0
         with:
           python-version: "3.13"
       - name: Restore Python virtual environment

.github/workflows/codeowner-review-request.yml

@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Request reviews from component codeowners
-        uses: actions/github-script@v7.0.1
+        uses: actions/github-script@v8.0.0
         with:
           script: |
             const owner = context.repo.owner;

.github/workflows/external-component-bot.yml

@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Add external component comment
-        uses: actions/github-script@v7.0.1
+        uses: actions/github-script@v8.0.0
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           script: |

.github/workflows/issue-codeowner-notify.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Notify codeowners for component issues
-        uses: actions/github-script@v7.0.1
+        uses: actions/github-script@v8.0.0
         with:
           script: |
             const owner = context.repo.owner;

.github/workflows/needs-docs.yml

@@ -1,24 +0,0 @@
-name: Needs Docs
-
-on:
-  pull_request:
-    types: [labeled, unlabeled]
-
-jobs:
-  check:
-    name: Check
-    runs-on: ubuntu-latest
-    steps:
-      - name: Check for needs-docs label
-        uses: actions/github-script@v7.0.1
-        with:
-          script: |
-            const { data: labels } = await github.rest.issues.listLabelsOnIssue({
-              owner: context.repo.owner,
-              repo: context.repo.repo,
-              issue_number: context.issue.number
-            });
-            const needsDocs = labels.find(label => label.name === 'needs-docs');
-            if (needsDocs) {
-              core.setFailed('Pull request needs docs');
-            }

.github/workflows/release.yml

@@ -62,7 +62,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5.0.0
       - name: Set up Python
-        uses: actions/setup-python@v5.6.0
+        uses: actions/setup-python@v6.0.0
         with:
           python-version: "3.x"
       - name: Build
@@ -70,7 +70,7 @@ jobs:
           pip3 install build
           python3 -m build
       - name: Publish
-        uses: pypa/gh-action-pypi-publish@v1.12.4
+        uses: pypa/gh-action-pypi-publish@v1.13.0
         with:
           skip-existing: true
 
@@ -94,7 +94,7 @@ jobs:
     steps:
       - uses: actions/checkout@v5.0.0
       - name: Set up Python
-        uses: actions/setup-python@v5.6.0
+        uses: actions/setup-python@v6.0.0
         with:
           python-version: "3.11"
 
@@ -220,7 +220,7 @@ jobs:
       - deploy-manifest
     steps:
       - name: Trigger Workflow
-        uses: actions/github-script@v7.0.1
+        uses: actions/github-script@v8.0.0
         with:
           github-token: ${{ secrets.DEPLOY_HA_ADDON_REPO_TOKEN }}
           script: |
@@ -246,7 +246,7 @@ jobs:
     environment: ${{ needs.init.outputs.deploy_env }}
     steps:
       - name: Trigger Workflow
-        uses: actions/github-script@v7.0.1
+        uses: actions/github-script@v8.0.0
         with:
           github-token: ${{ secrets.DEPLOY_ESPHOME_SCHEMA_REPO_TOKEN }}
           script: |

.github/workflows/stale.yml

@@ -17,7 +17,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v9.1.0
+      - uses: actions/stale@v10.0.0
         with:
           days-before-pr-stale: 90
           days-before-pr-close: 7
@@ -37,7 +37,7 @@ jobs:
   close-issues:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@v9.1.0
+      - uses: actions/stale@v10.0.0
         with:
           days-before-pr-stale: -1
           days-before-pr-close: -1

.github/workflows/status-check-labels.yml

@@ -0,0 +1,30 @@
+name: Status check labels
+
+on:
+  pull_request:
+    types: [labeled, unlabeled]
+
+jobs:
+  check:
+    name: Check ${{ matrix.label }}
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        label:
+          - needs-docs
+          - merge-after-release
+    steps:
+      - name: Check for ${{ matrix.label }} label
+        uses: actions/github-script@v8.0.0
+        with:
+          script: |
+            const { data: labels } = await github.rest.issues.listLabelsOnIssue({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number
+            });
+            const hasLabel = labels.find(label => label.name === '${{ matrix.label }}');
+            if (hasLabel) {
+              core.setFailed('Pull request cannot be merged, it is labeled as ${{ matrix.label }}');
+            }

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

@@ -22,7 +22,7 @@ jobs:
           path: lib/home-assistant
 
       - name: Setup Python
-        uses: actions/setup-python@v5.6.0
+        uses: actions/setup-python@v6.0.0
         with:
           python-version: 3.13
 

.pre-commit-config.yaml

@@ -11,7 +11,7 @@ ci:
 repos:
   - repo: https://github.com/astral-sh/ruff-pre-commit
     # Ruff version.
-    rev: v0.12.9
+    rev: v0.13.0
     hooks:
       # Run the linter.
       - id: ruff

CODEOWNERS

@@ -66,7 +66,7 @@ esphome/components/binary_sensor/* @esphome/core
 esphome/components/bk72xx/* @kuba2k2
 esphome/components/bl0906/* @athom-tech @jesserockz @tarontop
 esphome/components/bl0939/* @ziceva
-esphome/components/bl0940/* @tobias-
+esphome/components/bl0940/* @dan-s-github @tobias-
 esphome/components/bl0942/* @dbuezas @dwmw2
 esphome/components/ble_client/* @buxtronix @clydebarrow
 esphome/components/bluetooth_proxy/* @bdraco @jesserockz
@@ -88,7 +88,8 @@ esphome/components/bp1658cj/* @Cossid
 esphome/components/bp5758d/* @Cossid
 esphome/components/button/* @esphome/core
 esphome/components/bytebuffer/* @clydebarrow
-esphome/components/camera/* @DT-art1 @bdraco
+esphome/components/camera/* @bdraco @DT-art1
+esphome/components/camera_encoder/* @DT-art1
 esphome/components/canbus/* @danielschramm @mvturnho
 esphome/components/cap1188/* @mreditor97
 esphome/components/captive_portal/* @esphome/core
@@ -144,9 +145,9 @@ esphome/components/es8156/* @kbx81
 esphome/components/es8311/* @kahrendt @kroimon
 esphome/components/es8388/* @P4uLT
 esphome/components/esp32/* @esphome/core
-esphome/components/esp32_ble/* @Rapsssito @bdraco @jesserockz
+esphome/components/esp32_ble/* @bdraco @jesserockz @Rapsssito
 esphome/components/esp32_ble_client/* @bdraco @jesserockz
-esphome/components/esp32_ble_server/* @Rapsssito @clydebarrow @jesserockz
+esphome/components/esp32_ble_server/* @clydebarrow @jesserockz @Rapsssito
 esphome/components/esp32_ble_tracker/* @bdraco
 esphome/components/esp32_camera_web_server/* @ayufan
 esphome/components/esp32_can/* @Sympatron
@@ -166,7 +167,7 @@ esphome/components/ezo_pmp/* @carlos-sarmiento
 esphome/components/factory_reset/* @anatoly-savchenkov
 esphome/components/fastled_base/* @OttoWinter
 esphome/components/feedback/* @ianchi
-esphome/components/fingerprint_grow/* @OnFreund @alexborro @loongyh
+esphome/components/fingerprint_grow/* @alexborro @loongyh @OnFreund
 esphome/components/font/* @clydebarrow @esphome/core
 esphome/components/fs3000/* @kahrendt
 esphome/components/ft5x06/* @clydebarrow
@@ -202,7 +203,7 @@ esphome/components/heatpumpir/* @rob-deutsch
 esphome/components/hitachi_ac424/* @sourabhjaiswal
 esphome/components/hm3301/* @freekode
 esphome/components/hmac_md5/* @dwmw2
-esphome/components/homeassistant/* @OttoWinter @esphome/core
+esphome/components/homeassistant/* @esphome/core @OttoWinter
 esphome/components/homeassistant/number/* @landonr
 esphome/components/homeassistant/switch/* @Links2004
 esphome/components/honeywell_hih_i2c/* @Benichou34
@@ -227,13 +228,13 @@ esphome/components/iaqcore/* @yozik04
 esphome/components/ili9xxx/* @clydebarrow @nielsnl68
 esphome/components/improv_base/* @esphome/core
 esphome/components/improv_serial/* @esphome/core
-esphome/components/ina226/* @Sergio303 @latonita
+esphome/components/ina226/* @latonita @Sergio303
 esphome/components/ina260/* @mreditor97
 esphome/components/ina2xx_base/* @latonita
 esphome/components/ina2xx_i2c/* @latonita
 esphome/components/ina2xx_spi/* @latonita
 esphome/components/inkbird_ibsth1_mini/* @fkirill
-esphome/components/inkplate6/* @jesserockz
+esphome/components/inkplate/* @jesserockz @JosipKuci
 esphome/components/integration/* @OttoWinter
 esphome/components/internal_temperature/* @Mat931
 esphome/components/interval/* @esphome/core
@@ -276,8 +277,8 @@ esphome/components/max7219digit/* @rspaargaren
 esphome/components/max9611/* @mckaymatthew
 esphome/components/mcp23008/* @jesserockz
 esphome/components/mcp23017/* @jesserockz
-esphome/components/mcp23s08/* @SenexCrenshaw @jesserockz
+esphome/components/mcp23s08/* @jesserockz @SenexCrenshaw
-esphome/components/mcp23s17/* @SenexCrenshaw @jesserockz
+esphome/components/mcp23s17/* @jesserockz @SenexCrenshaw
 esphome/components/mcp23x08_base/* @jesserockz
 esphome/components/mcp23x17_base/* @jesserockz
 esphome/components/mcp23xxx_base/* @jesserockz
@@ -298,6 +299,7 @@ esphome/components/mics_4514/* @jesserockz
 esphome/components/midea/* @dudanov
 esphome/components/midea_ir/* @dudanov
 esphome/components/mipi_dsi/* @clydebarrow
+esphome/components/mipi_rgb/* @clydebarrow
 esphome/components/mipi_spi/* @clydebarrow
 esphome/components/mitsubishi/* @RubyBailey
 esphome/components/mixer/speaker/* @kahrendt
@@ -341,7 +343,7 @@ esphome/components/ota/* @esphome/core
 esphome/components/output/* @esphome/core
 esphome/components/packet_transport/* @clydebarrow
 esphome/components/pca6416a/* @Mat931
-esphome/components/pca9554/* @clydebarrow @hwstar
+esphome/components/pca9554/* @bdraco @clydebarrow @hwstar
 esphome/components/pcf85063/* @brogon
 esphome/components/pcf8563/* @KoenBreeman
 esphome/components/pi4ioe5v6408/* @jesserockz
@@ -352,9 +354,9 @@ esphome/components/pm2005/* @andrewjswan
 esphome/components/pmsa003i/* @sjtrny
 esphome/components/pmsx003/* @ximex
 esphome/components/pmwcs3/* @SeByDocKy
-esphome/components/pn532/* @OttoWinter @jesserockz
+esphome/components/pn532/* @jesserockz @OttoWinter
-esphome/components/pn532_i2c/* @OttoWinter @jesserockz
+esphome/components/pn532_i2c/* @jesserockz @OttoWinter
-esphome/components/pn532_spi/* @OttoWinter @jesserockz
+esphome/components/pn532_spi/* @jesserockz @OttoWinter
 esphome/components/pn7150/* @jesserockz @kbx81
 esphome/components/pn7150_i2c/* @jesserockz @kbx81
 esphome/components/pn7160/* @jesserockz @kbx81
@@ -363,7 +365,7 @@ esphome/components/pn7160_spi/* @jesserockz @kbx81
 esphome/components/power_supply/* @esphome/core
 esphome/components/preferences/* @esphome/core
 esphome/components/psram/* @esphome/core
-esphome/components/pulse_meter/* @TrentHouliston @cstaahl @stevebaxter
+esphome/components/pulse_meter/* @cstaahl @stevebaxter @TrentHouliston
 esphome/components/pvvx_mithermometer/* @pasiz
 esphome/components/pylontech/* @functionpointer
 esphome/components/qmp6988/* @andrewpc
@@ -404,7 +406,7 @@ esphome/components/sensirion_common/* @martgras
 esphome/components/sensor/* @esphome/core
 esphome/components/sfa30/* @ghsensdev
 esphome/components/sgp40/* @SenexCrenshaw
-esphome/components/sgp4x/* @SenexCrenshaw @martgras
+esphome/components/sgp4x/* @martgras @SenexCrenshaw
 esphome/components/shelly_dimmer/* @edge90 @rnauber
 esphome/components/sht3xd/* @mrtoy-me
 esphome/components/sht4x/* @sjtrny

Doxyfile

@@ -48,7 +48,7 @@ PROJECT_NAME           = ESPHome
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 2025.9.0-dev
+PROJECT_NUMBER         = 2025.10.0-dev
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a

esphome/__main__.py

@@ -132,14 +132,17 @@ def choose_upload_log_host(
                 ]
                 resolved.append(choose_prompt(options, purpose=purpose))
             elif device == "OTA":
-                if (show_ota and "ota" in CORE.config) or (
+                if CORE.address and (
-                    show_api and "api" in CORE.config
+                    (show_ota and "ota" in CORE.config)
+                    or (show_api and "api" in CORE.config)
                 ):
                     resolved.append(CORE.address)
                 elif show_mqtt and has_mqtt_logging():
                     resolved.append("MQTT")
             else:
                 resolved.append(device)
+        if not resolved:
+            _LOGGER.error("All specified devices: %s could not be resolved.", defaults)
         return resolved
 
     # No devices specified, show interactive chooser
@@ -223,7 +226,9 @@ def run_miniterm(config: ConfigType, port: str, args) -> int:
                         .replace(b"\n", b"")
                         .decode("utf8", "backslashreplace")
                     )
-                    time_str = datetime.now().time().strftime("[%H:%M:%S]")
+                    time_ = datetime.now()
+                    nanoseconds = time_.microsecond // 1000
+                    time_str = f"[{time_.hour:02}:{time_.minute:02}:{time_.second:02}.{nanoseconds:03}]"
                     safe_print(parser.parse_line(line, time_str))
 
                     backtrace_state = platformio_api.process_stacktrace(
@@ -393,27 +398,29 @@ def check_permissions(port: str):
             )
 
 
-def upload_program(config: ConfigType, args: ArgsProtocol, host: str) -> int | str:
+def upload_program(
+    config: ConfigType, args: ArgsProtocol, devices: list[str]
+) -> tuple[int, str | None]:
+    host = devices[0]
     try:
         module = importlib.import_module("esphome.components." + CORE.target_platform)
         if getattr(module, "upload_program")(config, args, host):
-            return 0
+            return 0, host
     except AttributeError:
         pass
 
     if get_port_type(host) == "SERIAL":
         check_permissions(host)
+
+        exit_code = 1
         if CORE.target_platform in (PLATFORM_ESP32, PLATFORM_ESP8266):
             file = getattr(args, "file", None)
-            return upload_using_esptool(config, host, file, args.upload_speed)
+            exit_code = upload_using_esptool(config, host, file, args.upload_speed)
+        elif CORE.target_platform == PLATFORM_RP2040 or CORE.is_libretiny:
+            exit_code = upload_using_platformio(config, host)
+        # else: Unknown target platform, exit_code remains 1
 
-        if CORE.target_platform in (PLATFORM_RP2040):
+        return exit_code, host if exit_code == 0 else None
-            return upload_using_platformio(config, host)
-
-        if CORE.is_libretiny:
-            return upload_using_platformio(config, host)
-
-        return 1  # Unknown target platform
 
     ota_conf = {}
     for ota_item in config.get(CONF_OTA, []):
@@ -430,10 +437,10 @@ def upload_program(config: ConfigType, args: ArgsProtocol, host: str) -> int | s
 
     remote_port = int(ota_conf[CONF_PORT])
     password = ota_conf.get(CONF_PASSWORD, "")
+    binary = args.file if getattr(args, "file", None) is not None else CORE.firmware_bin
 
     # Check if we should use MQTT for address resolution
     # This happens when no device was specified, or the current host is "MQTT"/"OTA"
-    devices: list[str] = args.device or []
     if (
         CONF_MQTT in config  # pylint: disable=too-many-boolean-expressions
         and (not devices or host in ("MQTT", "OTA"))
@@ -444,17 +451,23 @@ def upload_program(config: ConfigType, args: ArgsProtocol, host: str) -> int | s
     ):
         from esphome import mqtt
 
-        host = mqtt.get_esphome_device_ip(
+        devices = [
+            mqtt.get_esphome_device_ip(
                 config, args.username, args.password, args.client_id
             )
+        ]
 
-    if getattr(args, "file", None) is not None:
+    return espota2.run_ota(devices, remote_port, password, binary)
-        return espota2.run_ota(host, remote_port, password, args.file)
-
-    return espota2.run_ota(host, remote_port, password, CORE.firmware_bin)
 
 
 def show_logs(config: ConfigType, args: ArgsProtocol, devices: list[str]) -> int | None:
+    try:
+        module = importlib.import_module("esphome.components." + CORE.target_platform)
+        if getattr(module, "show_logs")(config, args, devices):
+            return 0
+    except AttributeError:
+        pass
+
     if "logger" not in config:
         raise EsphomeError("Logger is not configured!")
 
@@ -476,7 +489,7 @@ def show_logs(config: ConfigType, args: ArgsProtocol, devices: list[str]) -> int
         from esphome.components.api.client import run_logs
 
         return run_logs(config, addresses_to_use)
-    if get_port_type(port) == "MQTT" and "mqtt" in config:
+    if get_port_type(port) in ("NETWORK", "MQTT") and "mqtt" in config:
         from esphome import mqtt
 
         return mqtt.show_logs(
@@ -548,17 +561,11 @@ def command_upload(args: ArgsProtocol, config: ConfigType) -> int | None:
         purpose="uploading",
     )
 
-    # Try each device until one succeeds
+    exit_code, _ = upload_program(config, args, devices)
-    exit_code = 1
-    for device in devices:
-        _LOGGER.info("Uploading to %s", device)
-        exit_code = upload_program(config, args, device)
     if exit_code == 0:
         _LOGGER.info("Successfully uploaded program.")
-            return 0
+    else:
-        if len(devices) > 1:
+        _LOGGER.warning("Failed to upload to %s", devices)
-            _LOGGER.warning("Failed to upload to %s", device)
-
     return exit_code
 
 
@@ -611,19 +618,11 @@ def command_run(args: ArgsProtocol, config: ConfigType) -> int | None:
         purpose="uploading",
     )
 
-    # Try each device for upload until one succeeds
+    exit_code, successful_device = upload_program(config, args, devices)
-    successful_device: str | None = None
-    for device in devices:
-        _LOGGER.info("Uploading to %s", device)
-        exit_code = upload_program(config, args, device)
     if exit_code == 0:
         _LOGGER.info("Successfully uploaded program.")
-            successful_device = device
+    else:
-            break
+        _LOGGER.warning("Failed to upload to %s", devices)
-        if len(devices) > 1:
-            _LOGGER.warning("Failed to upload to %s", device)
-
-    if successful_device is None:
         return exit_code
 
     if args.no_logs:

esphome/components/absolute_humidity/absolute_humidity.cpp

@@ -61,11 +61,10 @@ void AbsoluteHumidityComponent::loop() {
       ESP_LOGW(TAG, "No valid state from temperature sensor!");
     }
     if (no_humidity) {
-      ESP_LOGW(TAG, "No valid state from temperature sensor!");
+      ESP_LOGW(TAG, "No valid state from humidity sensor!");
     }
-    ESP_LOGW(TAG, "Unable to calculate absolute humidity.");
     this->publish_state(NAN);
-    this->status_set_warning();
+    this->status_set_warning(LOG_STR("Unable to calculate absolute humidity."));
     return;
   }
 
@@ -87,9 +86,8 @@ void AbsoluteHumidityComponent::loop() {
       es = es_wobus(temperature_c);
       break;
     default:
-      ESP_LOGE(TAG, "Invalid saturation vapor pressure equation selection!");
       this->publish_state(NAN);
-      this->status_set_error();
+      this->status_set_error("Invalid saturation vapor pressure equation selection!");
       return;
   }
   ESP_LOGD(TAG, "Saturation vapor pressure %f kPa", es);

esphome/components/adc/__init__.py

@@ -11,15 +11,8 @@ from esphome.components.esp32.const import (
     VARIANT_ESP32S2,
     VARIANT_ESP32S3,
 )
-from esphome.config_helpers import filter_source_files_from_platform
 import esphome.config_validation as cv
-from esphome.const import (
+from esphome.const import CONF_ANALOG, CONF_INPUT, CONF_NUMBER, PLATFORM_ESP8266
-    CONF_ANALOG,
-    CONF_INPUT,
-    CONF_NUMBER,
-    PLATFORM_ESP8266,
-    PlatformFramework,
-)
 from esphome.core import CORE
 
 CODEOWNERS = ["@esphome/core"]
@@ -273,21 +266,3 @@ def validate_adc_pin(value):
         )(value)
 
     raise NotImplementedError
-
-
-FILTER_SOURCE_FILES = filter_source_files_from_platform(
-    {
-        "adc_sensor_esp32.cpp": {
-            PlatformFramework.ESP32_ARDUINO,
-            PlatformFramework.ESP32_IDF,
-        },
-        "adc_sensor_esp8266.cpp": {PlatformFramework.ESP8266_ARDUINO},
-        "adc_sensor_rp2040.cpp": {PlatformFramework.RP2040_ARDUINO},
-        "adc_sensor_libretiny.cpp": {
-            PlatformFramework.BK72XX_ARDUINO,
-            PlatformFramework.RTL87XX_ARDUINO,
-            PlatformFramework.LN882X_ARDUINO,
-        },
-        "adc_sensor_zephyr.cpp": {PlatformFramework.NRF52_ZEPHYR},
-    }
-)

esphome/components/adc/adc_sensor_esp32.cpp

@@ -241,6 +241,8 @@ float ADCSensor::sample_autorange_() {
     cali_config.bitwidth = ADC_BITWIDTH_DEFAULT;
 
     err = adc_cali_create_scheme_curve_fitting(&cali_config, &handle);
+    ESP_LOGVV(TAG, "Autorange atten=%d: Calibration handle creation %s (err=%d)", atten,
+              (err == ESP_OK) ? "SUCCESS" : "FAILED", err);
 #else
     adc_cali_line_fitting_config_t cali_config = {
       .unit_id = this->adc_unit_,
@@ -251,10 +253,14 @@ float ADCSensor::sample_autorange_() {
 #endif
     };
     err = adc_cali_create_scheme_line_fitting(&cali_config, &handle);
+    ESP_LOGVV(TAG, "Autorange atten=%d: Calibration handle creation %s (err=%d)", atten,
+              (err == ESP_OK) ? "SUCCESS" : "FAILED", err);
 #endif
 
     int raw;
     err = adc_oneshot_read(this->adc_handle_, this->channel_, &raw);
+    ESP_LOGVV(TAG, "Autorange atten=%d: Raw ADC read %s, value=%d (err=%d)", atten,
+              (err == ESP_OK) ? "SUCCESS" : "FAILED", raw, err);
 
     if (err != ESP_OK) {
       ESP_LOGW(TAG, "ADC read failed in autorange with error %d", err);
@@ -275,8 +281,10 @@ float ADCSensor::sample_autorange_() {
       err = adc_cali_raw_to_voltage(handle, raw, &voltage_mv);
       if (err == ESP_OK) {
         voltage = voltage_mv / 1000.0f;
+        ESP_LOGVV(TAG, "Autorange atten=%d: CALIBRATED - raw=%d -> %dmV -> %.6fV", atten, raw, voltage_mv, voltage);
       } else {
         voltage = raw * 3.3f / 4095.0f;
+        ESP_LOGVV(TAG, "Autorange atten=%d: UNCALIBRATED FALLBACK - raw=%d -> %.6fV (3.3V ref)", atten, raw, voltage);
       }
       // Clean up calibration handle
 #if USE_ESP32_VARIANT_ESP32C3 || USE_ESP32_VARIANT_ESP32C5 || USE_ESP32_VARIANT_ESP32C6 || \
@@ -287,6 +295,7 @@ float ADCSensor::sample_autorange_() {
 #endif
     } else {
       voltage = raw * 3.3f / 4095.0f;
+      ESP_LOGVV(TAG, "Autorange atten=%d: NO CALIBRATION - raw=%d -> %.6fV (3.3V ref)", atten, raw, voltage);
     }
 
     return {raw, voltage};
@@ -324,18 +333,32 @@ float ADCSensor::sample_autorange_() {
   }
 
   const int adc_half = 2048;
-  uint32_t c12 = std::min(raw12, adc_half);
+  const uint32_t c12 = std::min(raw12, adc_half);
-  uint32_t c6 = adc_half - std::abs(raw6 - adc_half);
+
-  uint32_t c2 = adc_half - std::abs(raw2 - adc_half);
+  const int32_t c6_signed = adc_half - std::abs(raw6 - adc_half);
-  uint32_t c0 = std::min(4095 - raw0, adc_half);
+  const uint32_t c6 = (c6_signed > 0) ? c6_signed : 0;  // Clamp to prevent underflow
-  uint32_t csum = c12 + c6 + c2 + c0;
+
+  const int32_t c2_signed = adc_half - std::abs(raw2 - adc_half);
+  const uint32_t c2 = (c2_signed > 0) ? c2_signed : 0;  // Clamp to prevent underflow
+
+  const uint32_t c0 = std::min(4095 - raw0, adc_half);
+  const uint32_t csum = c12 + c6 + c2 + c0;
+
+  ESP_LOGVV(TAG, "Autorange summary:");
+  ESP_LOGVV(TAG, "  Raw readings: 12db=%d, 6db=%d, 2.5db=%d, 0db=%d", raw12, raw6, raw2, raw0);
+  ESP_LOGVV(TAG, "  Voltages: 12db=%.6f, 6db=%.6f, 2.5db=%.6f, 0db=%.6f", mv12, mv6, mv2, mv0);
+  ESP_LOGVV(TAG, "  Coefficients: c12=%u, c6=%u, c2=%u, c0=%u, sum=%u", c12, c6, c2, c0, csum);
 
   if (csum == 0) {
     ESP_LOGE(TAG, "Invalid weight sum in autorange calculation");
     return NAN;
   }
 
-  return (mv12 * c12 + mv6 * c6 + mv2 * c2 + mv0 * c0) / csum;
+  const float final_result = (mv12 * c12 + mv6 * c6 + mv2 * c2 + mv0 * c0) / csum;
+  ESP_LOGV(TAG, "Autorange final: (%.6f*%u + %.6f*%u + %.6f*%u + %.6f*%u)/%u = %.6fV", mv12, c12, mv6, c6, mv2, c2, mv0,
+           c0, csum, final_result);
+
+  return final_result;
 }
 
 }  // namespace adc

esphome/components/adc/sensor.py

@@ -9,6 +9,7 @@ from esphome.components.zephyr import (
     zephyr_add_prj_conf,
     zephyr_add_user,
 )
+from esphome.config_helpers import filter_source_files_from_platform
 import esphome.config_validation as cv
 from esphome.const import (
     CONF_ATTENUATION,
@@ -20,6 +21,7 @@ from esphome.const import (
     PLATFORM_NRF52,
     STATE_CLASS_MEASUREMENT,
     UNIT_VOLT,
+    PlatformFramework,
 )
 from esphome.core import CORE
 
@@ -174,3 +176,21 @@ async def to_code(config):
 }};
 """
         )
+
+
+FILTER_SOURCE_FILES = filter_source_files_from_platform(
+    {
+        "adc_sensor_esp32.cpp": {
+            PlatformFramework.ESP32_ARDUINO,
+            PlatformFramework.ESP32_IDF,
+        },
+        "adc_sensor_esp8266.cpp": {PlatformFramework.ESP8266_ARDUINO},
+        "adc_sensor_rp2040.cpp": {PlatformFramework.RP2040_ARDUINO},
+        "adc_sensor_libretiny.cpp": {
+            PlatformFramework.BK72XX_ARDUINO,
+            PlatformFramework.RTL87XX_ARDUINO,
+            PlatformFramework.LN882X_ARDUINO,
+        },
+        "adc_sensor_zephyr.cpp": {PlatformFramework.NRF52_ZEPHYR},
+    }
+)

esphome/components/ags10/ags10.cpp

@@ -89,7 +89,7 @@ void AGS10Component::dump_config() {
 bool AGS10Component::new_i2c_address(uint8_t newaddress) {
   uint8_t rev_newaddress = ~newaddress;
   std::array<uint8_t, 5> data{newaddress, rev_newaddress, newaddress, rev_newaddress, 0};
-  data[4] = calc_crc8_(data, 4);
+  data[4] = crc8(data.data(), 4, 0xFF, 0x31, true);
   if (!this->write_bytes(REG_ADDRESS, data)) {
     this->error_code_ = COMMUNICATION_FAILED;
     this->status_set_warning();
@@ -109,7 +109,7 @@ bool AGS10Component::set_zero_point_with_current_resistance() { return this->set
 
 bool AGS10Component::set_zero_point_with(uint16_t value) {
   std::array<uint8_t, 5> data{0x00, 0x0C, (uint8_t) ((value >> 8) & 0xFF), (uint8_t) (value & 0xFF), 0};
-  data[4] = calc_crc8_(data, 4);
+  data[4] = crc8(data.data(), 4, 0xFF, 0x31, true);
   if (!this->write_bytes(REG_CALIBRATION, data)) {
     this->error_code_ = COMMUNICATION_FAILED;
     this->status_set_warning();
@@ -184,7 +184,7 @@ template<size_t N> optional<std::array<uint8_t, N>> AGS10Component::read_and_che
   auto res = *data;
   auto crc_byte = res[len];
 
-  if (crc_byte != calc_crc8_(res, len)) {
+  if (crc_byte != crc8(res.data(), len, 0xFF, 0x31, true)) {
     this->error_code_ = CRC_CHECK_FAILED;
     ESP_LOGE(TAG, "Reading AGS10 version failed: crc error!");
     return optional<std::array<uint8_t, N>>();
@@ -192,20 +192,5 @@ template<size_t N> optional<std::array<uint8_t, N>> AGS10Component::read_and_che
 
   return data;
 }
-
-template<size_t N> uint8_t AGS10Component::calc_crc8_(std::array<uint8_t, N> dat, uint8_t num) {
-  uint8_t i, byte1, crc = 0xFF;
-  for (byte1 = 0; byte1 < num; byte1++) {
-    crc ^= (dat[byte1]);
-    for (i = 0; i < 8; i++) {
-      if (crc & 0x80) {
-        crc = (crc << 1) ^ 0x31;
-      } else {
-        crc = (crc << 1);
-      }
-    }
-  }
-  return crc;
-}
 }  // namespace ags10
 }  // namespace esphome

esphome/components/ags10/ags10.h

@@ -1,9 +1,9 @@
 #pragma once
 
+#include "esphome/components/i2c/i2c.h"
+#include "esphome/components/sensor/sensor.h"
 #include "esphome/core/automation.h"
 #include "esphome/core/component.h"
-#include "esphome/components/sensor/sensor.h"
-#include "esphome/components/i2c/i2c.h"
 
 namespace esphome {
 namespace ags10 {
@@ -99,16 +99,6 @@ class AGS10Component : public PollingComponent, public i2c::I2CDevice {
    * Read, checks and returns data from the sensor.
    */
   template<size_t N> optional<std::array<uint8_t, N>> read_and_check_(uint8_t a_register);
-
-  /**
-   * Calculates CRC8 value.
-   *
-   * CRC8 calculation, initial value: 0xFF, polynomial: 0x31 (x8+ x5+ x4+1)
-   *
-   * @param[in] dat the data buffer
-   * @param num number of bytes in the buffer
-   */
-  template<size_t N> uint8_t calc_crc8_(std::array<uint8_t, N> dat, uint8_t num);
 };
 
 template<typename... Ts> class AGS10NewI2cAddressAction : public Action<Ts...>, public Parented<AGS10Component> {

esphome/components/aht10/aht10.cpp

@@ -96,7 +96,7 @@ void AHT10Component::read_data_() {
     ESP_LOGD(TAG, "Read attempt %d at %ums", this->read_count_, (unsigned) (millis() - this->start_time_));
   }
   if (this->read(data, 6) != i2c::ERROR_OK) {
-    this->status_set_warning("Read failed, will retry");
+    this->status_set_warning(LOG_STR("Read failed, will retry"));
     this->restart_read_();
     return;
   }
@@ -113,7 +113,7 @@ void AHT10Component::read_data_() {
     } else {
       ESP_LOGD(TAG, "Invalid humidity, retrying");
       if (this->write(AHT10_MEASURE_CMD, sizeof(AHT10_MEASURE_CMD)) != i2c::ERROR_OK) {
-        this->status_set_warning(ESP_LOG_MSG_COMM_FAIL);
+        this->status_set_warning(LOG_STR(ESP_LOG_MSG_COMM_FAIL));
       }
       this->restart_read_();
       return;
@@ -144,7 +144,7 @@ void AHT10Component::update() {
     return;
   this->start_time_ = millis();
   if (this->write(AHT10_MEASURE_CMD, sizeof(AHT10_MEASURE_CMD)) != i2c::ERROR_OK) {
-    this->status_set_warning(ESP_LOG_MSG_COMM_FAIL);
+    this->status_set_warning(LOG_STR(ESP_LOG_MSG_COMM_FAIL));
     return;
   }
   this->restart_read_();

esphome/components/airthings_ble/__init__.py

@@ -18,6 +18,6 @@ CONFIG_SCHEMA = cv.Schema(
 ).extend(esp32_ble_tracker.ESP_BLE_DEVICE_SCHEMA)
 
 
-def to_code(config):
+async def to_code(config):
     var = cg.new_Pvariable(config[CONF_ID])
-    yield esp32_ble_tracker.register_ble_device(var, config)
+    await esp32_ble_tracker.register_ble_device(var, config)

esphome/components/alarm_control_panel/__init__.py

@@ -13,7 +13,7 @@ from esphome.const import (
     CONF_TRIGGER_ID,
     CONF_WEB_SERVER,
 )
-from esphome.core import CORE, coroutine_with_priority
+from esphome.core import CORE, CoroPriority, coroutine_with_priority
 from esphome.core.entity_helpers import entity_duplicate_validator, setup_entity
 from esphome.cpp_generator import MockObjClass
 
@@ -345,6 +345,6 @@ async def alarm_control_panel_is_armed_to_code(
     return cg.new_Pvariable(condition_id, template_arg, paren)
 
 
-@coroutine_with_priority(100.0)
+@coroutine_with_priority(CoroPriority.CORE)
 async def to_code(config):
     cg.add_global(alarm_control_panel_ns.using)

esphome/components/am2315c/am2315c.cpp

@@ -29,22 +29,6 @@ namespace am2315c {
 
 static const char *const TAG = "am2315c";
 
-uint8_t AM2315C::crc8_(uint8_t *data, uint8_t len) {
-  uint8_t crc = 0xFF;
-  while (len--) {
-    crc ^= *data++;
-    for (uint8_t i = 0; i < 8; i++) {
-      if (crc & 0x80) {
-        crc <<= 1;
-        crc ^= 0x31;
-      } else {
-        crc <<= 1;
-      }
-    }
-  }
-  return crc;
-}
-
 bool AM2315C::reset_register_(uint8_t reg) {
   //  code based on demo code sent by www.aosong.com
   //  no further documentation.
@@ -86,7 +70,7 @@ bool AM2315C::convert_(uint8_t *data, float &humidity, float &temperature) {
   humidity = raw * 9.5367431640625e-5;
   raw = ((data[3] & 0x0F) << 16) | (data[4] << 8) | data[5];
   temperature = raw * 1.9073486328125e-4 - 50;
-  return this->crc8_(data, 6) == data[6];
+  return crc8(data, 6, 0xFF, 0x31, true) == data[6];
 }
 
 void AM2315C::setup() {

esphome/components/am2315c/am2315c.h

@@ -21,9 +21,9 @@
 // SOFTWARE.
 #pragma once
 
-#include "esphome/core/component.h"
-#include "esphome/components/sensor/sensor.h"
 #include "esphome/components/i2c/i2c.h"
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/core/component.h"
 
 namespace esphome {
 namespace am2315c {
@@ -39,7 +39,6 @@ class AM2315C : public PollingComponent, public i2c::I2CDevice {
   void set_humidity_sensor(sensor::Sensor *humidity_sensor) { this->humidity_sensor_ = humidity_sensor; }
 
  protected:
-  uint8_t crc8_(uint8_t *data, uint8_t len);
   bool convert_(uint8_t *data, float &humidity, float &temperature);
   bool reset_register_(uint8_t reg);
 

esphome/components/api/__init__.py

@@ -24,7 +24,7 @@ from esphome.const import (
     CONF_TRIGGER_ID,
     CONF_VARIABLES,
 )
-from esphome.core import CORE, coroutine_with_priority
+from esphome.core import CORE, CoroPriority, coroutine_with_priority
 
 DOMAIN = "api"
 DEPENDENCIES = ["network"]
@@ -134,7 +134,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-@coroutine_with_priority(40.0)
+@coroutine_with_priority(CoroPriority.WEB)
 async def to_code(config):
     var = cg.new_Pvariable(config[CONF_ID])
     await cg.register_component(var, config)
@@ -321,6 +321,7 @@ HOMEASSISTANT_TAG_SCANNED_ACTION_SCHEMA = cv.maybe_simple_value(
     HOMEASSISTANT_TAG_SCANNED_ACTION_SCHEMA,
 )
 async def homeassistant_tag_scanned_to_code(config, action_id, template_arg, args):
+    cg.add_define("USE_API_HOMEASSISTANT_SERVICES")
     serv = await cg.get_variable(config[CONF_ID])
     var = cg.new_Pvariable(action_id, template_arg, serv, True)
     cg.add(var.set_service("esphome.tag_scanned"))

esphome/components/api/api.proto

@@ -818,6 +818,7 @@ message GetTimeResponse {
   option (no_delay) = true;
 
   fixed32 epoch_seconds = 1;
+  string timezone = 2;
 }
 
 // ==================== USER-DEFINES SERVICES ====================
@@ -1712,6 +1713,7 @@ message BluetoothScannerStateResponse {
 
   BluetoothScannerState state = 1;
   BluetoothScannerMode mode = 2;
+  BluetoothScannerMode configured_mode = 3;
 }
 
 message BluetoothScannerSetModeRequest {

esphome/components/api/api_connection.cpp

@@ -112,7 +112,7 @@ void APIConnection::start() {
   APIError err = this->helper_->init();
   if (err != APIError::OK) {
     on_fatal_error();
-    this->log_warning_("Helper init failed", err);
+    this->log_warning_(LOG_STR("Helper init failed"), err);
     return;
   }
   this->client_info_.peername = helper_->getpeername();
@@ -159,7 +159,7 @@ void APIConnection::loop() {
         break;
       } else if (err != APIError::OK) {
         on_fatal_error();
-        this->log_warning_("Reading failed", err);
+        this->log_warning_(LOG_STR("Reading failed"), err);
         return;
       } else {
         this->last_traffic_ = now;
@@ -465,9 +465,7 @@ uint16_t APIConnection::try_send_light_state(EntityBase *entity, APIConnection *
   resp.cold_white = values.get_cold_white();
   resp.warm_white = values.get_warm_white();
   if (light->supports_effects()) {
-    // get_effect_name() returns temporary std::string - must store it
+    resp.set_effect(light->get_effect_name_ref());
-    std::string effect_name = light->get_effect_name();
-    resp.set_effect(StringRef(effect_name));
   }
   return fill_and_encode_entity_state(light, resp, LightStateResponse::MESSAGE_TYPE, conn, remaining_size, is_single);
 }
@@ -1072,8 +1070,14 @@ void APIConnection::camera_image(const CameraImageRequest &msg) {
 
 #ifdef USE_HOMEASSISTANT_TIME
 void APIConnection::on_get_time_response(const GetTimeResponse &value) {
-  if (homeassistant::global_homeassistant_time != nullptr)
+  if (homeassistant::global_homeassistant_time != nullptr) {
     homeassistant::global_homeassistant_time->set_epoch_time(value.epoch_seconds);
+#ifdef USE_TIME_TIMEZONE
+    if (!value.timezone.empty() && value.timezone != homeassistant::global_homeassistant_time->get_timezone()) {
+      homeassistant::global_homeassistant_time->set_timezone(value.timezone);
+    }
+#endif
+  }
 }
 #endif
 
@@ -1425,9 +1429,7 @@ bool APIConnection::send_device_info_response(const DeviceInfoRequest &msg) {
   static constexpr auto ESPHOME_VERSION_REF = StringRef::from_lit(ESPHOME_VERSION);
   resp.set_esphome_version(ESPHOME_VERSION_REF);
 
-  // get_compilation_time() returns temporary std::string - must store it
+  resp.set_compilation_time(App.get_compilation_time_ref());
-  std::string compilation_time = App.get_compilation_time();
-  resp.set_compilation_time(StringRef(compilation_time));
 
   // Compile-time StringRef constants for manufacturers
 #if defined(USE_ESP8266) || defined(USE_ESP32)
@@ -1569,7 +1571,7 @@ bool APIConnection::send_buffer(ProtoWriteBuffer buffer, uint8_t message_type) {
     return false;
   if (err != APIError::OK) {
     on_fatal_error();
-    this->log_warning_("Packet write failed", err);
+    this->log_warning_(LOG_STR("Packet write failed"), err);
     return false;
   }
   // Do not set last_traffic_ on send
@@ -1756,7 +1758,7 @@ void APIConnection::process_batch_() {
                                                        std::span<const PacketInfo>(packet_info, packet_count));
   if (err != APIError::OK && err != APIError::WOULD_BLOCK) {
     on_fatal_error();
-    this->log_warning_("Batch write failed", err);
+    this->log_warning_(LOG_STR("Batch write failed"), err);
   }
 
 #ifdef HAS_PROTO_MESSAGE_DUMP
@@ -1834,11 +1836,14 @@ void APIConnection::process_state_subscriptions_() {
 }
 #endif  // USE_API_HOMEASSISTANT_STATES
 
-void APIConnection::log_warning_(const char *message, APIError err) {
+void APIConnection::log_warning_(const LogString *message, APIError err) {
-  ESP_LOGW(TAG, "%s: %s %s errno=%d", this->get_client_combined_info().c_str(), message, api_error_to_str(err), errno);
+  ESP_LOGW(TAG, "%s: %s %s errno=%d", this->get_client_combined_info().c_str(), LOG_STR_ARG(message),
+           LOG_STR_ARG(api_error_to_logstr(err)), errno);
 }
 
-void APIConnection::log_socket_operation_failed_(APIError err) { this->log_warning_("Socket operation failed", err); }
+void APIConnection::log_socket_operation_failed_(APIError err) {
+  this->log_warning_(LOG_STR("Socket operation failed"), err);
+}
 
 }  // namespace esphome::api
 #endif

esphome/components/api/api_connection.h

@@ -44,7 +44,7 @@ static constexpr size_t MAX_PACKETS_PER_BATCH = 64;  // ESP32 has 8KB+ stack, HO
 static constexpr size_t MAX_PACKETS_PER_BATCH = 32;  // ESP8266/RP2040/etc have smaller stacks
 #endif
 
-class APIConnection : public APIServerConnection {
+class APIConnection final : public APIServerConnection {
  public:
   friend class APIServer;
   friend class ListEntitiesIterator;
@@ -301,9 +301,17 @@ class APIConnection : public APIServerConnection {
                                               APIConnection *conn, uint32_t remaining_size, bool is_single) {
     // Set common fields that are shared by all entity types
     msg.key = entity->get_object_id_hash();
-    // IMPORTANT: get_object_id() may return a temporary std::string
+    // Try to use static reference first to avoid allocation
-    std::string object_id = entity->get_object_id();
+    StringRef static_ref = entity->get_object_id_ref_for_api_();
+    // Store dynamic string outside the if-else to maintain lifetime
+    std::string object_id;
+    if (!static_ref.empty()) {
+      msg.set_object_id(static_ref);
+    } else {
+      // Dynamic case - need to allocate
+      object_id = entity->get_object_id();
       msg.set_object_id(StringRef(object_id));
+    }
 
     if (entity->has_own_name()) {
       msg.set_name(entity->get_name());
@@ -724,7 +732,7 @@ class APIConnection : public APIServerConnection {
   }
 
   // Helper function to log API errors with errno
-  void log_warning_(const char *message, APIError err);
+  void log_warning_(const LogString *message, APIError err);
   // Specific helper for duplicated error message
   void log_socket_operation_failed_(APIError err);
 };

esphome/components/api/api_frame_helper.cpp

@@ -23,59 +23,59 @@ static const char *const TAG = "api.frame_helper";
 #define LOG_PACKET_SENDING(data, len) ((void) 0)
 #endif
 
-const char *api_error_to_str(APIError err) {
+const LogString *api_error_to_logstr(APIError err) {
   // not using switch to ensure compiler doesn't try to build a big table out of it
   if (err == APIError::OK) {
-    return "OK";
+    return LOG_STR("OK");
   } else if (err == APIError::WOULD_BLOCK) {
-    return "WOULD_BLOCK";
+    return LOG_STR("WOULD_BLOCK");
   } else if (err == APIError::BAD_INDICATOR) {
-    return "BAD_INDICATOR";
+    return LOG_STR("BAD_INDICATOR");
   } else if (err == APIError::BAD_DATA_PACKET) {
-    return "BAD_DATA_PACKET";
+    return LOG_STR("BAD_DATA_PACKET");
   } else if (err == APIError::TCP_NODELAY_FAILED) {
-    return "TCP_NODELAY_FAILED";
+    return LOG_STR("TCP_NODELAY_FAILED");
   } else if (err == APIError::TCP_NONBLOCKING_FAILED) {
-    return "TCP_NONBLOCKING_FAILED";
+    return LOG_STR("TCP_NONBLOCKING_FAILED");
   } else if (err == APIError::CLOSE_FAILED) {
-    return "CLOSE_FAILED";
+    return LOG_STR("CLOSE_FAILED");
   } else if (err == APIError::SHUTDOWN_FAILED) {
-    return "SHUTDOWN_FAILED";
+    return LOG_STR("SHUTDOWN_FAILED");
   } else if (err == APIError::BAD_STATE) {
-    return "BAD_STATE";
+    return LOG_STR("BAD_STATE");
   } else if (err == APIError::BAD_ARG) {
-    return "BAD_ARG";
+    return LOG_STR("BAD_ARG");
   } else if (err == APIError::SOCKET_READ_FAILED) {
-    return "SOCKET_READ_FAILED";
+    return LOG_STR("SOCKET_READ_FAILED");
   } else if (err == APIError::SOCKET_WRITE_FAILED) {
-    return "SOCKET_WRITE_FAILED";
+    return LOG_STR("SOCKET_WRITE_FAILED");
   } else if (err == APIError::OUT_OF_MEMORY) {
-    return "OUT_OF_MEMORY";
+    return LOG_STR("OUT_OF_MEMORY");
   } else if (err == APIError::CONNECTION_CLOSED) {
-    return "CONNECTION_CLOSED";
+    return LOG_STR("CONNECTION_CLOSED");
   }
 #ifdef USE_API_NOISE
   else if (err == APIError::BAD_HANDSHAKE_PACKET_LEN) {
-    return "BAD_HANDSHAKE_PACKET_LEN";
+    return LOG_STR("BAD_HANDSHAKE_PACKET_LEN");
   } else if (err == APIError::HANDSHAKESTATE_READ_FAILED) {
-    return "HANDSHAKESTATE_READ_FAILED";
+    return LOG_STR("HANDSHAKESTATE_READ_FAILED");
   } else if (err == APIError::HANDSHAKESTATE_WRITE_FAILED) {
-    return "HANDSHAKESTATE_WRITE_FAILED";
+    return LOG_STR("HANDSHAKESTATE_WRITE_FAILED");
   } else if (err == APIError::HANDSHAKESTATE_BAD_STATE) {
-    return "HANDSHAKESTATE_BAD_STATE";
+    return LOG_STR("HANDSHAKESTATE_BAD_STATE");
   } else if (err == APIError::CIPHERSTATE_DECRYPT_FAILED) {
-    return "CIPHERSTATE_DECRYPT_FAILED";
+    return LOG_STR("CIPHERSTATE_DECRYPT_FAILED");
   } else if (err == APIError::CIPHERSTATE_ENCRYPT_FAILED) {
-    return "CIPHERSTATE_ENCRYPT_FAILED";
+    return LOG_STR("CIPHERSTATE_ENCRYPT_FAILED");
   } else if (err == APIError::HANDSHAKESTATE_SETUP_FAILED) {
-    return "HANDSHAKESTATE_SETUP_FAILED";
+    return LOG_STR("HANDSHAKESTATE_SETUP_FAILED");
   } else if (err == APIError::HANDSHAKESTATE_SPLIT_FAILED) {
-    return "HANDSHAKESTATE_SPLIT_FAILED";
+    return LOG_STR("HANDSHAKESTATE_SPLIT_FAILED");
   } else if (err == APIError::BAD_HANDSHAKE_ERROR_BYTE) {
-    return "BAD_HANDSHAKE_ERROR_BYTE";
+    return LOG_STR("BAD_HANDSHAKE_ERROR_BYTE");
   }
 #endif
-  return "UNKNOWN";
+  return LOG_STR("UNKNOWN");
 }
 
 // Default implementation for loop - handles sending buffered data

esphome/components/api/api_frame_helper.h

@@ -66,7 +66,7 @@ enum class APIError : uint16_t {
 #endif
 };
 
-const char *api_error_to_str(APIError err);
+const LogString *api_error_to_logstr(APIError err);
 
 class APIFrameHelper {
  public:
@@ -104,9 +104,9 @@ class APIFrameHelper {
   // The buffer contains all messages with appropriate padding before each
   virtual APIError write_protobuf_packets(ProtoWriteBuffer buffer, std::span<const PacketInfo> packets) = 0;
   // Get the frame header padding required by this protocol
-  virtual uint8_t frame_header_padding() = 0;
+  uint8_t frame_header_padding() const { return frame_header_padding_; }
   // Get the frame footer size required by this protocol
-  virtual uint8_t frame_footer_size() = 0;
+  uint8_t frame_footer_size() const { return frame_footer_size_; }
   // Check if socket has data ready to read
   bool is_socket_ready() const { return socket_ != nullptr && socket_->ready(); }
 

esphome/components/api/api_frame_helper_noise.cpp

@@ -10,10 +10,18 @@
 #include <cstring>
 #include <cinttypes>
 
+#ifdef USE_ESP8266
+#include <pgmspace.h>
+#endif
+
 namespace esphome::api {
 
 static const char *const TAG = "api.noise";
+#ifdef USE_ESP8266
+static const char PROLOGUE_INIT[] PROGMEM = "NoiseAPIInit";
+#else
 static const char *const PROLOGUE_INIT = "NoiseAPIInit";
+#endif
 static constexpr size_t PROLOGUE_INIT_LEN = 12;  // strlen("NoiseAPIInit")
 
 #define HELPER_LOG(msg, ...) ESP_LOGVV(TAG, "%s: " msg, this->client_info_->get_combined_info().c_str(), ##__VA_ARGS__)
@@ -27,42 +35,42 @@ static constexpr size_t PROLOGUE_INIT_LEN = 12;  // strlen("NoiseAPIInit")
 #endif
 
 /// Convert a noise error code to a readable error
-std::string noise_err_to_str(int err) {
+const LogString *noise_err_to_logstr(int err) {
   if (err == NOISE_ERROR_NO_MEMORY)
-    return "NO_MEMORY";
+    return LOG_STR("NO_MEMORY");
   if (err == NOISE_ERROR_UNKNOWN_ID)
-    return "UNKNOWN_ID";
+    return LOG_STR("UNKNOWN_ID");
   if (err == NOISE_ERROR_UNKNOWN_NAME)
-    return "UNKNOWN_NAME";
+    return LOG_STR("UNKNOWN_NAME");
   if (err == NOISE_ERROR_MAC_FAILURE)
-    return "MAC_FAILURE";
+    return LOG_STR("MAC_FAILURE");
   if (err == NOISE_ERROR_NOT_APPLICABLE)
-    return "NOT_APPLICABLE";
+    return LOG_STR("NOT_APPLICABLE");
   if (err == NOISE_ERROR_SYSTEM)
-    return "SYSTEM";
+    return LOG_STR("SYSTEM");
   if (err == NOISE_ERROR_REMOTE_KEY_REQUIRED)
-    return "REMOTE_KEY_REQUIRED";
+    return LOG_STR("REMOTE_KEY_REQUIRED");
   if (err == NOISE_ERROR_LOCAL_KEY_REQUIRED)
-    return "LOCAL_KEY_REQUIRED";
+    return LOG_STR("LOCAL_KEY_REQUIRED");
   if (err == NOISE_ERROR_PSK_REQUIRED)
-    return "PSK_REQUIRED";
+    return LOG_STR("PSK_REQUIRED");
   if (err == NOISE_ERROR_INVALID_LENGTH)
-    return "INVALID_LENGTH";
+    return LOG_STR("INVALID_LENGTH");
   if (err == NOISE_ERROR_INVALID_PARAM)
-    return "INVALID_PARAM";
+    return LOG_STR("INVALID_PARAM");
   if (err == NOISE_ERROR_INVALID_STATE)
-    return "INVALID_STATE";
+    return LOG_STR("INVALID_STATE");
   if (err == NOISE_ERROR_INVALID_NONCE)
-    return "INVALID_NONCE";
+    return LOG_STR("INVALID_NONCE");
   if (err == NOISE_ERROR_INVALID_PRIVATE_KEY)
-    return "INVALID_PRIVATE_KEY";
+    return LOG_STR("INVALID_PRIVATE_KEY");
   if (err == NOISE_ERROR_INVALID_PUBLIC_KEY)
-    return "INVALID_PUBLIC_KEY";
+    return LOG_STR("INVALID_PUBLIC_KEY");
   if (err == NOISE_ERROR_INVALID_FORMAT)
-    return "INVALID_FORMAT";
+    return LOG_STR("INVALID_FORMAT");
   if (err == NOISE_ERROR_INVALID_SIGNATURE)
-    return "INVALID_SIGNATURE";
+    return LOG_STR("INVALID_SIGNATURE");
-  return to_string(err);
+  return LOG_STR("UNKNOWN");
 }
 
 /// Initialize the frame helper, returns OK if successful.
@@ -75,7 +83,11 @@ APIError APINoiseFrameHelper::init() {
   // init prologue
   size_t old_size = prologue_.size();
   prologue_.resize(old_size + PROLOGUE_INIT_LEN);
+#ifdef USE_ESP8266
+  memcpy_P(prologue_.data() + old_size, PROLOGUE_INIT, PROLOGUE_INIT_LEN);
+#else
   std::memcpy(prologue_.data() + old_size, PROLOGUE_INIT, PROLOGUE_INIT_LEN);
+#endif
 
   state_ = State::CLIENT_HELLO;
   return APIError::OK;
@@ -83,18 +95,18 @@ APIError APINoiseFrameHelper::init() {
 // Helper for handling handshake frame errors
 APIError APINoiseFrameHelper::handle_handshake_frame_error_(APIError aerr) {
   if (aerr == APIError::BAD_INDICATOR) {
-    send_explicit_handshake_reject_("Bad indicator byte");
+    send_explicit_handshake_reject_(LOG_STR("Bad indicator byte"));
   } else if (aerr == APIError::BAD_HANDSHAKE_PACKET_LEN) {
-    send_explicit_handshake_reject_("Bad handshake packet len");
+    send_explicit_handshake_reject_(LOG_STR("Bad handshake packet len"));
   }
   return aerr;
 }
 
 // Helper for handling noise library errors
-APIError APINoiseFrameHelper::handle_noise_error_(int err, const char *func_name, APIError api_err) {
+APIError APINoiseFrameHelper::handle_noise_error_(int err, const LogString *func_name, APIError api_err) {
   if (err != 0) {
     state_ = State::FAILED;
-    HELPER_LOG("%s failed: %s", func_name, noise_err_to_str(err).c_str());
+    HELPER_LOG("%s failed: %s", LOG_STR_ARG(func_name), LOG_STR_ARG(noise_err_to_logstr(err)));
     return api_err;
   }
   return APIError::OK;
@@ -279,11 +291,11 @@ APIError APINoiseFrameHelper::state_action_() {
       }
 
       if (frame.empty()) {
-        send_explicit_handshake_reject_("Empty handshake message");
+        send_explicit_handshake_reject_(LOG_STR("Empty handshake message"));
         return APIError::BAD_HANDSHAKE_ERROR_BYTE;
       } else if (frame[0] != 0x00) {
         HELPER_LOG("Bad handshake error byte: %u", frame[0]);
-        send_explicit_handshake_reject_("Bad handshake error byte");
+        send_explicit_handshake_reject_(LOG_STR("Bad handshake error byte"));
         return APIError::BAD_HANDSHAKE_ERROR_BYTE;
       }
 
@@ -293,8 +305,10 @@ APIError APINoiseFrameHelper::state_action_() {
       err = noise_handshakestate_read_message(handshake_, &mbuf, nullptr);
       if (err != 0) {
         // Special handling for MAC failure
-        send_explicit_handshake_reject_(err == NOISE_ERROR_MAC_FAILURE ? "Handshake MAC failure" : "Handshake error");
+        send_explicit_handshake_reject_(err == NOISE_ERROR_MAC_FAILURE ? LOG_STR("Handshake MAC failure")
-        return handle_noise_error_(err, "noise_handshakestate_read_message", APIError::HANDSHAKESTATE_READ_FAILED);
+                                                                       : LOG_STR("Handshake error"));
+        return handle_noise_error_(err, LOG_STR("noise_handshakestate_read_message"),
+                                   APIError::HANDSHAKESTATE_READ_FAILED);
       }
 
       aerr = check_handshake_finished_();
@@ -307,8 +321,8 @@ APIError APINoiseFrameHelper::state_action_() {
       noise_buffer_set_output(mbuf, buffer + 1, sizeof(buffer) - 1);
 
       err = noise_handshakestate_write_message(handshake_, &mbuf, nullptr);
-      APIError aerr_write =
+      APIError aerr_write = handle_noise_error_(err, LOG_STR("noise_handshakestate_write_message"),
-          handle_noise_error_(err, "noise_handshakestate_write_message", APIError::HANDSHAKESTATE_WRITE_FAILED);
+                                                APIError::HANDSHAKESTATE_WRITE_FAILED);
       if (aerr_write != APIError::OK)
         return aerr_write;
       buffer[0] = 0x00;  // success
@@ -331,15 +345,31 @@ APIError APINoiseFrameHelper::state_action_() {
   }
   return APIError::OK;
 }
-void APINoiseFrameHelper::send_explicit_handshake_reject_(const std::string &reason) {
+void APINoiseFrameHelper::send_explicit_handshake_reject_(const LogString *reason) {
+#ifdef USE_STORE_LOG_STR_IN_FLASH
+  // On ESP8266 with flash strings, we need to use PROGMEM-aware functions
+  size_t reason_len = strlen_P(reinterpret_cast<PGM_P>(reason));
   std::vector<uint8_t> data;
-  data.resize(reason.length() + 1);
+  data.resize(reason_len + 1);
+  data[0] = 0x01;  // failure
+
+  // Copy error message from PROGMEM
+  if (reason_len > 0) {
+    memcpy_P(data.data() + 1, reinterpret_cast<PGM_P>(reason), reason_len);
+  }
+#else
+  // Normal memory access
+  const char *reason_str = LOG_STR_ARG(reason);
+  size_t reason_len = strlen(reason_str);
+  std::vector<uint8_t> data;
+  data.resize(reason_len + 1);
   data[0] = 0x01;  // failure
 
   // Copy error message in bulk
-  if (!reason.empty()) {
+  if (reason_len > 0) {
-    std::memcpy(data.data() + 1, reason.c_str(), reason.length());
+    std::memcpy(data.data() + 1, reason_str, reason_len);
   }
+#endif
 
   // temporarily remove failed state
   auto orig_state = state_;
@@ -368,7 +398,8 @@ APIError APINoiseFrameHelper::read_packet(ReadPacketBuffer *buffer) {
   noise_buffer_init(mbuf);
   noise_buffer_set_inout(mbuf, frame.data(), frame.size(), frame.size());
   err = noise_cipherstate_decrypt(recv_cipher_, &mbuf);
-  APIError decrypt_err = handle_noise_error_(err, "noise_cipherstate_decrypt", APIError::CIPHERSTATE_DECRYPT_FAILED);
+  APIError decrypt_err =
+      handle_noise_error_(err, LOG_STR("noise_cipherstate_decrypt"), APIError::CIPHERSTATE_DECRYPT_FAILED);
   if (decrypt_err != APIError::OK)
     return decrypt_err;
 
@@ -450,7 +481,8 @@ APIError APINoiseFrameHelper::write_protobuf_packets(ProtoWriteBuffer buffer, st
                            4 + packet.payload_size + frame_footer_size_);
 
     int err = noise_cipherstate_encrypt(send_cipher_, &mbuf);
-    APIError aerr = handle_noise_error_(err, "noise_cipherstate_encrypt", APIError::CIPHERSTATE_ENCRYPT_FAILED);
+    APIError aerr =
+        handle_noise_error_(err, LOG_STR("noise_cipherstate_encrypt"), APIError::CIPHERSTATE_ENCRYPT_FAILED);
     if (aerr != APIError::OK)
       return aerr;
 
@@ -504,25 +536,27 @@ APIError APINoiseFrameHelper::init_handshake_() {
   nid_.modifier_ids[0] = NOISE_MODIFIER_PSK0;
 
   err = noise_handshakestate_new_by_id(&handshake_, &nid_, NOISE_ROLE_RESPONDER);
-  APIError aerr = handle_noise_error_(err, "noise_handshakestate_new_by_id", APIError::HANDSHAKESTATE_SETUP_FAILED);
+  APIError aerr =
+      handle_noise_error_(err, LOG_STR("noise_handshakestate_new_by_id"), APIError::HANDSHAKESTATE_SETUP_FAILED);
   if (aerr != APIError::OK)
     return aerr;
 
   const auto &psk = ctx_->get_psk();
   err = noise_handshakestate_set_pre_shared_key(handshake_, psk.data(), psk.size());
-  aerr = handle_noise_error_(err, "noise_handshakestate_set_pre_shared_key", APIError::HANDSHAKESTATE_SETUP_FAILED);
+  aerr = handle_noise_error_(err, LOG_STR("noise_handshakestate_set_pre_shared_key"),
+                             APIError::HANDSHAKESTATE_SETUP_FAILED);
   if (aerr != APIError::OK)
     return aerr;
 
   err = noise_handshakestate_set_prologue(handshake_, prologue_.data(), prologue_.size());
-  aerr = handle_noise_error_(err, "noise_handshakestate_set_prologue", APIError::HANDSHAKESTATE_SETUP_FAILED);
+  aerr = handle_noise_error_(err, LOG_STR("noise_handshakestate_set_prologue"), APIError::HANDSHAKESTATE_SETUP_FAILED);
   if (aerr != APIError::OK)
     return aerr;
   // set_prologue copies it into handshakestate, so we can get rid of it now
   prologue_ = {};
 
   err = noise_handshakestate_start(handshake_);
-  aerr = handle_noise_error_(err, "noise_handshakestate_start", APIError::HANDSHAKESTATE_SETUP_FAILED);
+  aerr = handle_noise_error_(err, LOG_STR("noise_handshakestate_start"), APIError::HANDSHAKESTATE_SETUP_FAILED);
   if (aerr != APIError::OK)
     return aerr;
   return APIError::OK;
@@ -540,7 +574,8 @@ APIError APINoiseFrameHelper::check_handshake_finished_() {
     return APIError::HANDSHAKESTATE_BAD_STATE;
   }
   int err = noise_handshakestate_split(handshake_, &send_cipher_, &recv_cipher_);
-  APIError aerr = handle_noise_error_(err, "noise_handshakestate_split", APIError::HANDSHAKESTATE_SPLIT_FAILED);
+  APIError aerr =
+      handle_noise_error_(err, LOG_STR("noise_handshakestate_split"), APIError::HANDSHAKESTATE_SPLIT_FAILED);
   if (aerr != APIError::OK)
     return aerr;
 

esphome/components/api/api_frame_helper_noise.h

@@ -7,7 +7,7 @@
 
 namespace esphome::api {
 
-class APINoiseFrameHelper : public APIFrameHelper {
+class APINoiseFrameHelper final : public APIFrameHelper {
  public:
   APINoiseFrameHelper(std::unique_ptr<socket::Socket> socket, std::shared_ptr<APINoiseContext> ctx,
                       const ClientInfo *client_info)
@@ -25,10 +25,6 @@ class APINoiseFrameHelper : public APIFrameHelper {
   APIError read_packet(ReadPacketBuffer *buffer) override;
   APIError write_protobuf_packet(uint8_t type, ProtoWriteBuffer buffer) override;
   APIError write_protobuf_packets(ProtoWriteBuffer buffer, std::span<const PacketInfo> packets) override;
-  // Get the frame header padding required by this protocol
-  uint8_t frame_header_padding() override { return frame_header_padding_; }
-  // Get the frame footer size required by this protocol
-  uint8_t frame_footer_size() override { return frame_footer_size_; }
 
  protected:
   APIError state_action_();
@@ -36,9 +32,9 @@ class APINoiseFrameHelper : public APIFrameHelper {
   APIError write_frame_(const uint8_t *data, uint16_t len);
   APIError init_handshake_();
   APIError check_handshake_finished_();
-  void send_explicit_handshake_reject_(const std::string &reason);
+  void send_explicit_handshake_reject_(const LogString *reason);
   APIError handle_handshake_frame_error_(APIError aerr);
-  APIError handle_noise_error_(int err, const char *func_name, APIError api_err);
+  APIError handle_noise_error_(int err, const LogString *func_name, APIError api_err);
 
   // Pointers first (4 bytes each)
   NoiseHandshakeState *handshake_{nullptr};

esphome/components/api/api_frame_helper_plaintext.cpp

@@ -10,6 +10,10 @@
 #include <cstring>
 #include <cinttypes>
 
+#ifdef USE_ESP8266
+#include <pgmspace.h>
+#endif
+
 namespace esphome::api {
 
 static const char *const TAG = "api.plaintext";
@@ -197,11 +201,20 @@ APIError APIPlaintextFrameHelper::read_packet(ReadPacketBuffer *buffer) {
       // We must send at least 3 bytes to be read, so we add
       // a message after the indicator byte to ensures its long
       // enough and can aid in debugging.
-      const char msg[] = "\x00"
+      static constexpr uint8_t INDICATOR_MSG_SIZE = 19;
+#ifdef USE_ESP8266
+      static const char MSG_PROGMEM[] PROGMEM = "\x00"
                                                 "Bad indicator byte";
+      char msg[INDICATOR_MSG_SIZE];
+      memcpy_P(msg, MSG_PROGMEM, INDICATOR_MSG_SIZE);
       iov[0].iov_base = (void *) msg;
-      iov[0].iov_len = 19;
+#else
-      this->write_raw_(iov, 1, 19);
+      static const char MSG[] = "\x00"
+                                "Bad indicator byte";
+      iov[0].iov_base = (void *) MSG;
+#endif
+      iov[0].iov_len = INDICATOR_MSG_SIZE;
+      this->write_raw_(iov, 1, INDICATOR_MSG_SIZE);
     }
     return aerr;
   }
@@ -235,8 +248,8 @@ APIError APIPlaintextFrameHelper::write_protobuf_packets(ProtoWriteBuffer buffer
 
   for (const auto &packet : packets) {
     // Calculate varint sizes for header layout
-    uint8_t size_varint_len = api::ProtoSize::varint(packet.payload_size);
+    uint8_t size_varint_len = api::ProtoSize::varint(static_cast<uint32_t>(packet.payload_size));
-    uint8_t type_varint_len = api::ProtoSize::varint(packet.message_type);
+    uint8_t type_varint_len = api::ProtoSize::varint(static_cast<uint32_t>(packet.message_type));
     uint8_t total_header_len = 1 + size_varint_len + type_varint_len;
 
     // Calculate where to start writing the header
@@ -271,8 +284,9 @@ APIError APIPlaintextFrameHelper::write_protobuf_packets(ProtoWriteBuffer buffer
     buf_start[header_offset] = 0x00;  // indicator
 
     // Encode varints directly into buffer
-    encode_varint_unchecked(buf_start + header_offset + 1, packet.payload_size);
+    ProtoVarInt(packet.payload_size).encode_to_buffer_unchecked(buf_start + header_offset + 1, size_varint_len);
-    encode_varint_unchecked(buf_start + header_offset + 1 + size_varint_len, packet.message_type);
+    ProtoVarInt(packet.message_type)
+        .encode_to_buffer_unchecked(buf_start + header_offset + 1 + size_varint_len, type_varint_len);
 
     // Add iovec for this packet (header + payload)
     size_t packet_len = static_cast<size_t>(total_header_len + packet.payload_size);

esphome/components/api/api_frame_helper_plaintext.h

@@ -5,7 +5,7 @@
 
 namespace esphome::api {
 
-class APIPlaintextFrameHelper : public APIFrameHelper {
+class APIPlaintextFrameHelper final : public APIFrameHelper {
  public:
   APIPlaintextFrameHelper(std::unique_ptr<socket::Socket> socket, const ClientInfo *client_info)
       : APIFrameHelper(std::move(socket), client_info) {
@@ -22,9 +22,6 @@ class APIPlaintextFrameHelper : public APIFrameHelper {
   APIError read_packet(ReadPacketBuffer *buffer) override;
   APIError write_protobuf_packet(uint8_t type, ProtoWriteBuffer buffer) override;
   APIError write_protobuf_packets(ProtoWriteBuffer buffer, std::span<const PacketInfo> packets) override;
-  uint8_t frame_header_padding() override { return frame_header_padding_; }
-  // Get the frame footer size required by this protocol
-  uint8_t frame_footer_size() override { return frame_footer_size_; }
 
  protected:
   APIError try_read_frame_(std::vector<uint8_t> *frame);

esphome/components/api/api_pb2.cpp

@@ -901,6 +901,16 @@ bool HomeAssistantStateResponse::decode_length(uint32_t field_id, ProtoLengthDel
   return true;
 }
 #endif
+bool GetTimeResponse::decode_length(uint32_t field_id, ProtoLengthDelimited value) {
+  switch (field_id) {
+    case 2:
+      this->timezone = value.as_string();
+      break;
+    default:
+      return false;
+  }
+  return true;
+}
 bool GetTimeResponse::decode_32bit(uint32_t field_id, Proto32Bit value) {
   switch (field_id) {
     case 1:
@@ -911,8 +921,14 @@ bool GetTimeResponse::decode_32bit(uint32_t field_id, Proto32Bit value) {
   }
   return true;
 }
-void GetTimeResponse::encode(ProtoWriteBuffer buffer) const { buffer.encode_fixed32(1, this->epoch_seconds); }
+void GetTimeResponse::encode(ProtoWriteBuffer buffer) const {
-void GetTimeResponse::calculate_size(ProtoSize &size) const { size.add_fixed32(1, this->epoch_seconds); }
+  buffer.encode_fixed32(1, this->epoch_seconds);
+  buffer.encode_string(2, this->timezone_ref_);
+}
+void GetTimeResponse::calculate_size(ProtoSize &size) const {
+  size.add_fixed32(1, this->epoch_seconds);
+  size.add_length(1, this->timezone_ref_.size());
+}
 #ifdef USE_API_SERVICES
 void ListEntitiesServicesArgument::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_string(1, this->name_ref_);
@@ -2153,10 +2169,12 @@ void BluetoothDeviceClearCacheResponse::calculate_size(ProtoSize &size) const {
 void BluetoothScannerStateResponse::encode(ProtoWriteBuffer buffer) const {
   buffer.encode_uint32(1, static_cast<uint32_t>(this->state));
   buffer.encode_uint32(2, static_cast<uint32_t>(this->mode));
+  buffer.encode_uint32(3, static_cast<uint32_t>(this->configured_mode));
 }
 void BluetoothScannerStateResponse::calculate_size(ProtoSize &size) const {
   size.add_uint32(1, static_cast<uint32_t>(this->state));
   size.add_uint32(1, static_cast<uint32_t>(this->mode));
+  size.add_uint32(1, static_cast<uint32_t>(this->configured_mode));
 }
 bool BluetoothScannerSetModeRequest::decode_varint(uint32_t field_id, ProtoVarInt value) {
   switch (field_id) {

esphome/components/api/api_pb2_dump.cpp

@@ -1110,7 +1110,17 @@ void HomeAssistantStateResponse::dump_to(std::string &out) const {
 }
 #endif
 void GetTimeRequest::dump_to(std::string &out) const { out.append("GetTimeRequest {}"); }
-void GetTimeResponse::dump_to(std::string &out) const { dump_field(out, "epoch_seconds", this->epoch_seconds); }
+void GetTimeResponse::dump_to(std::string &out) const {
+  MessageDumpHelper helper(out, "GetTimeResponse");
+  dump_field(out, "epoch_seconds", this->epoch_seconds);
+  out.append("  timezone: ");
+  if (!this->timezone_ref_.empty()) {
+    out.append("'").append(this->timezone_ref_.c_str()).append("'");
+  } else {
+    out.append("'").append(this->timezone).append("'");
+  }
+  out.append("\n");
+}
 #ifdef USE_API_SERVICES
 void ListEntitiesServicesArgument::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "ListEntitiesServicesArgument");
@@ -1135,7 +1145,7 @@ void ExecuteServiceArgument::dump_to(std::string &out) const {
   dump_field(out, "string_", this->string_);
   dump_field(out, "int_", this->int_);
   for (const auto it : this->bool_array) {
-    dump_field(out, "bool_array", it, 4);
+    dump_field(out, "bool_array", static_cast<bool>(it), 4);
   }
   for (const auto &it : this->int_array) {
     dump_field(out, "int_array", it, 4);
@@ -1704,6 +1714,7 @@ void BluetoothScannerStateResponse::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "BluetoothScannerStateResponse");
   dump_field(out, "state", static_cast<enums::BluetoothScannerState>(this->state));
   dump_field(out, "mode", static_cast<enums::BluetoothScannerMode>(this->mode));
+  dump_field(out, "configured_mode", static_cast<enums::BluetoothScannerMode>(this->configured_mode));
 }
 void BluetoothScannerSetModeRequest::dump_to(std::string &out) const {
   MessageDumpHelper helper(out, "BluetoothScannerSetModeRequest");

esphome/components/api/client.py

@@ -62,9 +62,11 @@ async def async_run_logs(config: dict[str, Any], addresses: list[str]) -> None:
         time_ = datetime.now()
         message: bytes = msg.message
         text = message.decode("utf8", "backslashreplace")
-        for parsed_msg in parse_log_message(
+        nanoseconds = time_.microsecond // 1000
-            text, f"[{time_.hour:02}:{time_.minute:02}:{time_.second:02}]"
+        timestamp = (
-        ):
+            f"[{time_.hour:02}:{time_.minute:02}:{time_.second:02}.{nanoseconds:03}]"
+        )
+        for parsed_msg in parse_log_message(text, timestamp):
             print(parsed_msg.replace("\033", "\\033") if dashboard else parsed_msg)
 
     stop = await async_run(cli, on_log, name=name)

esphome/components/api/proto.cpp

@@ -8,74 +8,70 @@ namespace esphome::api {
 static const char *const TAG = "api.proto";
 
 void ProtoDecodableMessage::decode(const uint8_t *buffer, size_t length) {
-  uint32_t i = 0;
+  const uint8_t *ptr = buffer;
-  bool error = false;
+  const uint8_t *end = buffer + length;
-  while (i < length) {
+
+  while (ptr < end) {
     uint32_t consumed;
-    auto res = ProtoVarInt::parse(&buffer[i], length - i, &consumed);
+
+    // Parse field header
+    auto res = ProtoVarInt::parse(ptr, end - ptr, &consumed);
     if (!res.has_value()) {
-      ESP_LOGV(TAG, "Invalid field start at %" PRIu32, i);
+      ESP_LOGV(TAG, "Invalid field start at offset %ld", (long) (ptr - buffer));
-      break;
+      return;
     }
 
-    uint32_t field_type = (res->as_uint32()) & 0b111;
+    uint32_t tag = res->as_uint32();
-    uint32_t field_id = (res->as_uint32()) >> 3;
+    uint32_t field_type = tag & 0b111;
-    i += consumed;
+    uint32_t field_id = tag >> 3;
+    ptr += consumed;
 
     switch (field_type) {
       case 0: {  // VarInt
-        res = ProtoVarInt::parse(&buffer[i], length - i, &consumed);
+        res = ProtoVarInt::parse(ptr, end - ptr, &consumed);
         if (!res.has_value()) {
-          ESP_LOGV(TAG, "Invalid VarInt at %" PRIu32, i);
+          ESP_LOGV(TAG, "Invalid VarInt at offset %ld", (long) (ptr - buffer));
-          error = true;
+          return;
-          break;
         }
         if (!this->decode_varint(field_id, *res)) {
           ESP_LOGV(TAG, "Cannot decode VarInt field %" PRIu32 " with value %" PRIu32 "!", field_id, res->as_uint32());
         }
-        i += consumed;
+        ptr += consumed;
         break;
       }
       case 2: {  // Length-delimited
-        res = ProtoVarInt::parse(&buffer[i], length - i, &consumed);
+        res = ProtoVarInt::parse(ptr, end - ptr, &consumed);
         if (!res.has_value()) {
-          ESP_LOGV(TAG, "Invalid Length Delimited at %" PRIu32, i);
+          ESP_LOGV(TAG, "Invalid Length Delimited at offset %ld", (long) (ptr - buffer));
-          error = true;
+          return;
-          break;
         }
         uint32_t field_length = res->as_uint32();
-        i += consumed;
+        ptr += consumed;
-        if (field_length > length - i) {
+        if (ptr + field_length > end) {
-          ESP_LOGV(TAG, "Out-of-bounds Length Delimited at %" PRIu32, i);
+          ESP_LOGV(TAG, "Out-of-bounds Length Delimited at offset %ld", (long) (ptr - buffer));
-          error = true;
+          return;
-          break;
         }
-        if (!this->decode_length(field_id, ProtoLengthDelimited(&buffer[i], field_length))) {
+        if (!this->decode_length(field_id, ProtoLengthDelimited(ptr, field_length))) {
           ESP_LOGV(TAG, "Cannot decode Length Delimited field %" PRIu32 "!", field_id);
         }
-        i += field_length;
+        ptr += field_length;
         break;
       }
       case 5: {  // 32-bit
-        if (length - i < 4) {
+        if (ptr + 4 > end) {
-          ESP_LOGV(TAG, "Out-of-bounds Fixed32-bit at %" PRIu32, i);
+          ESP_LOGV(TAG, "Out-of-bounds Fixed32-bit at offset %ld", (long) (ptr - buffer));
-          error = true;
+          return;
-          break;
         }
-        uint32_t val = encode_uint32(buffer[i + 3], buffer[i + 2], buffer[i + 1], buffer[i]);
+        uint32_t val = encode_uint32(ptr[3], ptr[2], ptr[1], ptr[0]);
         if (!this->decode_32bit(field_id, Proto32Bit(val))) {
           ESP_LOGV(TAG, "Cannot decode 32-bit field %" PRIu32 " with value %" PRIu32 "!", field_id, val);
         }
-        i += 4;
+        ptr += 4;
         break;
       }
       default:
-        ESP_LOGV(TAG, "Invalid field type at %" PRIu32, i);
+        ESP_LOGV(TAG, "Invalid field type %u at offset %ld", field_type, (long) (ptr - buffer));
-        error = true;
+        return;
-        break;
-    }
-    if (error) {
-      break;
     }
   }
 }

esphome/components/api/proto.h

@@ -124,6 +124,34 @@ class ProtoVarInt {
     // with ZigZag encoding
     return decode_zigzag64(this->value_);
   }
+  /**
+   * Encode the varint value to a pre-allocated buffer without bounds checking.
+   *
+   * @param buffer The pre-allocated buffer to write the encoded varint to
+   * @param len The size of the buffer in bytes
+   *
+   * @note The caller is responsible for ensuring the buffer is large enough
+   *       to hold the encoded value. Use ProtoSize::varint() to calculate
+   *       the exact size needed before calling this method.
+   * @note No bounds checking is performed for performance reasons.
+   */
+  void encode_to_buffer_unchecked(uint8_t *buffer, size_t len) {
+    uint64_t val = this->value_;
+    if (val <= 0x7F) {
+      buffer[0] = val;
+      return;
+    }
+    size_t i = 0;
+    while (val && i < len) {
+      uint8_t temp = val & 0x7F;
+      val >>= 7;
+      if (val) {
+        buffer[i++] = temp | 0x80;
+      } else {
+        buffer[i++] = temp;
+      }
+    }
+  }
   void encode(std::vector<uint8_t> &out) {
     uint64_t val = this->value_;
     if (val <= 0x7F) {
@@ -302,28 +330,6 @@ class ProtoWriteBuffer {
   std::vector<uint8_t> *buffer_;
 };
 
-/**
- * @brief Encode a uint16_t value as a varint directly to a buffer without bounds checking
- *
- * @param buffer The pre-allocated buffer to write the encoded varint to
- * @param value The uint16_t value to encode (0-65535)
- *
- * @note The caller is responsible for ensuring the buffer is large enough (max 3 bytes for uint16_t)
- * @note No bounds checking is performed for performance reasons
- */
-inline void encode_varint_unchecked(uint8_t *buffer, uint16_t value) {
-  if (value < 128) {
-    buffer[0] = value;
-  } else if (value < 16384) {
-    buffer[0] = (value & 0x7F) | 0x80;
-    buffer[1] = value >> 7;
-  } else {
-    buffer[0] = (value & 0x7F) | 0x80;
-    buffer[1] = ((value >> 7) & 0x7F) | 0x80;
-    buffer[2] = value >> 14;
-  }
-}
-
 // Forward declaration
 class ProtoSize;
 
@@ -380,33 +386,6 @@ class ProtoSize {
 
   uint32_t get_size() const { return total_size_; }
 
-  /**
-   * @brief Calculates the size in bytes needed to encode a uint8_t value as a varint
-   *
-   * @param value The uint8_t value to calculate size for
-   * @return The number of bytes needed to encode the value (1 or 2)
-   */
-  static constexpr uint8_t varint(uint8_t value) {
-    // For uint8_t (0-255), we need at most 2 bytes
-    return (value < 128) ? 1 : 2;
-  }
-
-  /**
-   * @brief Calculates the size in bytes needed to encode a uint16_t value as a varint
-   *
-   * @param value The uint16_t value to calculate size for
-   * @return The number of bytes needed to encode the value (1-3)
-   */
-  static constexpr uint8_t varint(uint16_t value) {
-    // For uint16_t (0-65535), we need at most 3 bytes
-    if (value < 128)
-      return 1;  // 7 bits
-    else if (value < 16384)
-      return 2;  // 14 bits
-    else
-      return 3;  // 15-16 bits
-  }
-
   /**
    * @brief Calculates the size in bytes needed to encode a uint32_t value as a varint
    *
@@ -416,9 +395,11 @@ class ProtoSize {
   static constexpr uint32_t varint(uint32_t value) {
     // Optimized varint size calculation using leading zeros
     // Each 7 bits requires one byte in the varint encoding
-    if (value < 128) {
+    if (value < 128)
       return 1;  // 7 bits, common case for small values
-    } else if (value < 16384) {
+
+    // For larger values, count bytes needed based on the position of the highest bit set
+    if (value < 16384) {
       return 2;  // 14 bits
     } else if (value < 2097152) {
       return 3;  // 21 bits
@@ -792,7 +773,7 @@ inline void ProtoWriteBuffer::encode_message(uint32_t field_id, const ProtoMessa
   this->buffer_->resize(this->buffer_->size() + varint_length_bytes);
 
   // Write the length varint directly
-  encode_varint_unchecked(this->buffer_->data() + begin, static_cast<uint16_t>(msg_length_bytes));
+  ProtoVarInt(msg_length_bytes).encode_to_buffer_unchecked(this->buffer_->data() + begin, varint_length_bytes);
 
   // Now encode the message content - it will append to the buffer
   value.encode(*this);

esphome/components/async_tcp/__init__.py

@@ -8,7 +8,7 @@ from esphome.const import (
     PLATFORM_LN882X,
     PLATFORM_RTL87XX,
 )
-from esphome.core import CORE, coroutine_with_priority
+from esphome.core import CORE, CoroPriority, coroutine_with_priority
 
 CODEOWNERS = ["@esphome/core"]
 
@@ -27,7 +27,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-@coroutine_with_priority(200.0)
+@coroutine_with_priority(CoroPriority.NETWORK_TRANSPORT)
 async def to_code(config):
     if CORE.is_esp32 or CORE.is_libretiny:
         # https://github.com/ESP32Async/AsyncTCP

esphome/components/atm90e26/sensor.py

@@ -16,6 +16,7 @@ from esphome.const import (
     DEVICE_CLASS_ENERGY,
     DEVICE_CLASS_POWER,
     DEVICE_CLASS_POWER_FACTOR,
+    DEVICE_CLASS_REACTIVE_POWER,
     DEVICE_CLASS_VOLTAGE,
     ICON_CURRENT_AC,
     ICON_LIGHTBULB,
@@ -78,6 +79,7 @@ CONFIG_SCHEMA = (
                 unit_of_measurement=UNIT_VOLT_AMPS_REACTIVE,
                 icon=ICON_LIGHTBULB,
                 accuracy_decimals=2,
+                device_class=DEVICE_CLASS_REACTIVE_POWER,
                 state_class=STATE_CLASS_MEASUREMENT,
             ),
             cv.Optional(CONF_POWER_FACTOR): sensor.sensor_schema(

esphome/components/atm90e32/atm90e32.cpp

@@ -382,20 +382,15 @@ float ATM90E32Component::get_setup_priority() const { return setup_priority::IO;
 // R/C registers can conly be cleared after the LastSPIData register is updated (register 78H)
 // Peakdetect period: 05H. Bit 15:8 are PeakDet_period in ms. 7:0 are Sag_period
 // Default is 143FH (20ms, 63ms)
-uint16_t ATM90E32Component::read16_transaction_(uint16_t a_register) {
+uint16_t ATM90E32Component::read16_(uint16_t a_register) {
+  this->enable();
+  delay_microseconds_safe(1);  // min delay between CS low and first SCK is 200ns - 1us is plenty
   uint8_t addrh = (1 << 7) | ((a_register >> 8) & 0x03);
   uint8_t addrl = (a_register & 0xFF);
   uint8_t data[4] = {addrh, addrl, 0x00, 0x00};
   this->transfer_array(data, 4);
   uint16_t output = encode_uint16(data[2], data[3]);
   ESP_LOGVV(TAG, "read16_ 0x%04" PRIX16 " output 0x%04" PRIX16, a_register, output);
-  return output;
-}
-
-uint16_t ATM90E32Component::read16_(uint16_t a_register) {
-  this->enable();
-  delay_microseconds_safe(1);  // min delay between CS low and first SCK is 200ns - 1us is plenty
-  uint16_t output = this->read16_transaction_(a_register);
   delay_microseconds_safe(1);  // allow the last clock to propagate before releasing CS
   this->disable();
   delay_microseconds_safe(1);  // meet minimum CS high time before next transaction
@@ -403,14 +398,8 @@ uint16_t ATM90E32Component::read16_(uint16_t a_register) {
 }
 
 int ATM90E32Component::read32_(uint16_t addr_h, uint16_t addr_l) {
-  this->enable();
+  const uint16_t val_h = this->read16_(addr_h);
-  delay_microseconds_safe(1);
+  const uint16_t val_l = this->read16_(addr_l);
-  const uint16_t val_h = this->read16_transaction_(addr_h);
-  delay_microseconds_safe(1);
-  const uint16_t val_l = this->read16_transaction_(addr_l);
-  delay_microseconds_safe(1);
-  this->disable();
-  delay_microseconds_safe(1);
   const int32_t val = (val_h << 16) | val_l;
 
   ESP_LOGVV(TAG,

esphome/components/atm90e32/atm90e32.h

@@ -140,7 +140,6 @@ class ATM90E32Component : public PollingComponent,
   number::Number *ref_currents_[3]{nullptr, nullptr, nullptr};
 #endif
   uint16_t read16_(uint16_t a_register);
-  uint16_t read16_transaction_(uint16_t a_register);
   int read32_(uint16_t addr_h, uint16_t addr_l);
   void write16_(uint16_t a_register, uint16_t val, bool validate = true);
   float get_local_phase_voltage_(uint8_t phase);

esphome/components/atm90e32/sensor.py

@@ -17,10 +17,12 @@ from esphome.const import (
     CONF_REACTIVE_POWER,
     CONF_REVERSE_ACTIVE_ENERGY,
     CONF_VOLTAGE,
+    DEVICE_CLASS_APPARENT_POWER,
     DEVICE_CLASS_CURRENT,
     DEVICE_CLASS_ENERGY,
     DEVICE_CLASS_POWER,
     DEVICE_CLASS_POWER_FACTOR,
+    DEVICE_CLASS_REACTIVE_POWER,
     DEVICE_CLASS_TEMPERATURE,
     DEVICE_CLASS_VOLTAGE,
     ENTITY_CATEGORY_DIAGNOSTIC,
@@ -100,13 +102,13 @@ ATM90E32_PHASE_SCHEMA = cv.Schema(
             unit_of_measurement=UNIT_VOLT_AMPS_REACTIVE,
             icon=ICON_LIGHTBULB,
             accuracy_decimals=2,
-            device_class=DEVICE_CLASS_POWER,
+            device_class=DEVICE_CLASS_REACTIVE_POWER,
             state_class=STATE_CLASS_MEASUREMENT,
         ),
         cv.Optional(CONF_APPARENT_POWER): sensor.sensor_schema(
             unit_of_measurement=UNIT_VOLT_AMPS,
             accuracy_decimals=2,
-            device_class=DEVICE_CLASS_POWER,
+            device_class=DEVICE_CLASS_APPARENT_POWER,
             state_class=STATE_CLASS_MEASUREMENT,
         ),
         cv.Optional(CONF_POWER_FACTOR): sensor.sensor_schema(

esphome/components/audio_adc/__init__.py

@@ -2,7 +2,7 @@ from esphome import automation
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.const import CONF_ID, CONF_MIC_GAIN
-from esphome.core import coroutine_with_priority
+from esphome.core import CoroPriority, coroutine_with_priority
 
 CODEOWNERS = ["@kbx81"]
 IS_PLATFORM_COMPONENT = True
@@ -35,7 +35,7 @@ async def audio_adc_set_mic_gain_to_code(config, action_id, template_arg, args):
     return var
 
 
-@coroutine_with_priority(100.0)
+@coroutine_with_priority(CoroPriority.CORE)
 async def to_code(config):
     cg.add_define("USE_AUDIO_ADC")
     cg.add_global(audio_adc_ns.using)

esphome/components/audio_dac/__init__.py

@@ -3,7 +3,7 @@ from esphome.automation import maybe_simple_id
 import esphome.codegen as cg
 import esphome.config_validation as cv
 from esphome.const import CONF_ID, CONF_VOLUME
-from esphome.core import coroutine_with_priority
+from esphome.core import CoroPriority, coroutine_with_priority
 
 CODEOWNERS = ["@kbx81"]
 IS_PLATFORM_COMPONENT = True
@@ -51,7 +51,7 @@ async def audio_dac_set_volume_to_code(config, action_id, template_arg, args):
     return var
 
 
-@coroutine_with_priority(100.0)
+@coroutine_with_priority(CoroPriority.CORE)
 async def to_code(config):
     cg.add_define("USE_AUDIO_DAC")
     cg.add_global(audio_dac_ns.using)

esphome/components/axs15231/touchscreen/axs15231_touchscreen.cpp

@@ -12,7 +12,7 @@ constexpr static const uint8_t AXS_READ_TOUCHPAD[11] = {0xb5, 0xab, 0xa5, 0x5a,
 
 #define ERROR_CHECK(err) \
   if ((err) != i2c::ERROR_OK) { \
-    this->status_set_warning("Failed to communicate"); \
+    this->status_set_warning(LOG_STR("Failed to communicate")); \
     return; \
   }
 
@@ -41,7 +41,7 @@ void AXS15231Touchscreen::update_touches() {
   i2c::ErrorCode err;
   uint8_t data[8]{};
 
-  err = this->write(AXS_READ_TOUCHPAD, sizeof(AXS_READ_TOUCHPAD), false);
+  err = this->write(AXS_READ_TOUCHPAD, sizeof(AXS_READ_TOUCHPAD));
   ERROR_CHECK(err);
   err = this->read(data, sizeof(data));
   ERROR_CHECK(err);

esphome/components/bedjet/bedjet_hub.cpp

@@ -493,7 +493,7 @@ void BedJetHub::dump_config() {
                 "  ble_client.app_id: %d\n"
                 "  ble_client.conn_id: %d",
                 this->get_name().c_str(), this->parent()->app_id, this->parent()->get_conn_id());
-  LOG_UPDATE_INTERVAL(this)
+  LOG_UPDATE_INTERVAL(this);
   ESP_LOGCONFIG(TAG, "  Child components (%d):", this->children_.size());
   for (auto *child : this->children_) {
     ESP_LOGCONFIG(TAG, "    - %s", child->describe().c_str());

esphome/components/binary_sensor/__init__.py

@@ -59,7 +59,7 @@ from esphome.const import (
     DEVICE_CLASS_VIBRATION,
     DEVICE_CLASS_WINDOW,
 )
-from esphome.core import CORE, coroutine_with_priority
+from esphome.core import CORE, CoroPriority, coroutine_with_priority
 from esphome.core.entity_helpers import entity_duplicate_validator, setup_entity
 from esphome.cpp_generator import MockObjClass
 from esphome.util import Registry
@@ -652,7 +652,7 @@ async def binary_sensor_is_off_to_code(config, condition_id, template_arg, args)
     return cg.new_Pvariable(condition_id, template_arg, paren, False)
 
 
-@coroutine_with_priority(100.0)
+@coroutine_with_priority(CoroPriority.CORE)
 async def to_code(config):
     cg.add_global(binary_sensor_ns.using)
 

esphome/components/binary_sensor/binary_sensor.cpp

@@ -7,6 +7,19 @@ namespace binary_sensor {
 
 static const char *const TAG = "binary_sensor";
 
+// Function implementation of LOG_BINARY_SENSOR macro to reduce code size
+void log_binary_sensor(const char *tag, const char *prefix, const char *type, BinarySensor *obj) {
+  if (obj == nullptr) {
+    return;
+  }
+
+  ESP_LOGCONFIG(tag, "%s%s '%s'", prefix, type, obj->get_name().c_str());
+
+  if (!obj->get_device_class_ref().empty()) {
+    ESP_LOGCONFIG(tag, "%s  Device Class: '%s'", prefix, obj->get_device_class_ref().c_str());
+  }
+}
+
 void BinarySensor::publish_state(bool new_state) {
   if (this->filter_list_ == nullptr) {
     this->send_state_internal(new_state);

esphome/components/binary_sensor/binary_sensor.h

@@ -10,13 +10,10 @@ namespace esphome {
 
 namespace binary_sensor {
 
-#define LOG_BINARY_SENSOR(prefix, type, obj) \
+class BinarySensor;
-  if ((obj) != nullptr) { \
+void log_binary_sensor(const char *tag, const char *prefix, const char *type, BinarySensor *obj);
-    ESP_LOGCONFIG(TAG, "%s%s '%s'", prefix, LOG_STR_LITERAL(type), (obj)->get_name().c_str()); \
+
-    if (!(obj)->get_device_class().empty()) { \
+#define LOG_BINARY_SENSOR(prefix, type, obj) log_binary_sensor(TAG, prefix, LOG_STR_LITERAL(type), obj)
-      ESP_LOGCONFIG(TAG, "%s  Device Class: '%s'", prefix, (obj)->get_device_class().c_str()); \
-    } \
-  }
 
 #define SUB_BINARY_SENSOR(name) \
  protected: \

esphome/components/bl0940/__init__.py

@@ -1 +1,6 @@
-CODEOWNERS = ["@tobias-"]
+import esphome.codegen as cg
+
+CODEOWNERS = ["@tobias-", "@dan-s-github"]
+
+CONF_BL0940_ID = "bl0940_id"
+bl0940_ns = cg.esphome_ns.namespace("bl0940")

esphome/components/bl0940/bl0940.cpp

@@ -7,28 +7,26 @@ namespace bl0940 {
 
 static const char *const TAG = "bl0940";
 
-static const uint8_t BL0940_READ_COMMAND = 0x50;  // 0x58 according to documentation
 static const uint8_t BL0940_FULL_PACKET = 0xAA;
-static const uint8_t BL0940_PACKET_HEADER = 0x55;  // 0x58 according to documentation
+static const uint8_t BL0940_PACKET_HEADER = 0x55;  // 0x58 according to en doc but 0x55 in cn doc
 
-static const uint8_t BL0940_WRITE_COMMAND = 0xA0;  // 0xA8 according to documentation
 static const uint8_t BL0940_REG_I_FAST_RMS_CTRL = 0x10;
 static const uint8_t BL0940_REG_MODE = 0x18;
 static const uint8_t BL0940_REG_SOFT_RESET = 0x19;
 static const uint8_t BL0940_REG_USR_WRPROT = 0x1A;
 static const uint8_t BL0940_REG_TPS_CTRL = 0x1B;
 
-const uint8_t BL0940_INIT[5][6] = {
+static const uint8_t BL0940_INIT[5][5] = {
     // Reset to default
-    {BL0940_WRITE_COMMAND, BL0940_REG_SOFT_RESET, 0x5A, 0x5A, 0x5A, 0x38},
+    {BL0940_REG_SOFT_RESET, 0x5A, 0x5A, 0x5A, 0x38},
     // Enable User Operation Write
-    {BL0940_WRITE_COMMAND, BL0940_REG_USR_WRPROT, 0x55, 0x00, 0x00, 0xF0},
+    {BL0940_REG_USR_WRPROT, 0x55, 0x00, 0x00, 0xF0},
     // 0x0100 = CF_UNABLE energy pulse, AC_FREQ_SEL 50Hz, RMS_UPDATE_SEL 800mS
-    {BL0940_WRITE_COMMAND, BL0940_REG_MODE, 0x00, 0x10, 0x00, 0x37},
+    {BL0940_REG_MODE, 0x00, 0x10, 0x00, 0x37},
     // 0x47FF = Over-current and leakage alarm on, Automatic temperature measurement, Interval 100mS
-    {BL0940_WRITE_COMMAND, BL0940_REG_TPS_CTRL, 0xFF, 0x47, 0x00, 0xFE},
+    {BL0940_REG_TPS_CTRL, 0xFF, 0x47, 0x00, 0xFE},
     // 0x181C = Half cycle, Fast RMS threshold 6172
-    {BL0940_WRITE_COMMAND, BL0940_REG_I_FAST_RMS_CTRL, 0x1C, 0x18, 0x00, 0x1B}};
+    {BL0940_REG_I_FAST_RMS_CTRL, 0x1C, 0x18, 0x00, 0x1B}};
 
 void BL0940::loop() {
   DataPacket buffer;
@@ -36,8 +34,8 @@ void BL0940::loop() {
     return;
   }
   if (read_array((uint8_t *) &buffer, sizeof(buffer))) {
-    if (validate_checksum(&buffer)) {
+    if (this->validate_checksum_(&buffer)) {
-      received_package_(&buffer);
+      this->received_package_(&buffer);
     }
   } else {
     ESP_LOGW(TAG, "Junk on wire. Throwing away partial message");
@@ -46,35 +44,151 @@ void BL0940::loop() {
   }
 }
 
-bool BL0940::validate_checksum(const DataPacket *data) {
+bool BL0940::validate_checksum_(DataPacket *data) {
-  uint8_t checksum = BL0940_READ_COMMAND;
+  uint8_t checksum = this->read_command_;
   // Whole package but checksum
-  for (uint32_t i = 0; i < sizeof(data->raw) - 1; i++) {
+  uint8_t *raw = (uint8_t *) data;
-    checksum += data->raw[i];
+  for (uint32_t i = 0; i < sizeof(*data) - 1; i++) {
+    checksum += raw[i];
   }
   checksum ^= 0xFF;
   if (checksum != data->checksum) {
-    ESP_LOGW(TAG, "BL0940 invalid checksum! 0x%02X != 0x%02X", checksum, data->checksum);
+    ESP_LOGW(TAG, "Invalid checksum! 0x%02X != 0x%02X", checksum, data->checksum);
   }
   return checksum == data->checksum;
 }
 
 void BL0940::update() {
   this->flush();
-  this->write_byte(BL0940_READ_COMMAND);
+  this->write_byte(this->read_command_);
   this->write_byte(BL0940_FULL_PACKET);
 }
 
 void BL0940::setup() {
+#ifdef USE_NUMBER
+  // add calibration callbacks
+  if (this->voltage_calibration_number_ != nullptr) {
+    this->voltage_calibration_number_->add_on_state_callback(
+        [this](float state) { this->voltage_calibration_callback_(state); });
+    if (this->voltage_calibration_number_->has_state()) {
+      this->voltage_calibration_callback_(this->voltage_calibration_number_->state);
+    }
+  }
+
+  if (this->current_calibration_number_ != nullptr) {
+    this->current_calibration_number_->add_on_state_callback(
+        [this](float state) { this->current_calibration_callback_(state); });
+    if (this->current_calibration_number_->has_state()) {
+      this->current_calibration_callback_(this->current_calibration_number_->state);
+    }
+  }
+
+  if (this->power_calibration_number_ != nullptr) {
+    this->power_calibration_number_->add_on_state_callback(
+        [this](float state) { this->power_calibration_callback_(state); });
+    if (this->power_calibration_number_->has_state()) {
+      this->power_calibration_callback_(this->power_calibration_number_->state);
+    }
+  }
+
+  if (this->energy_calibration_number_ != nullptr) {
+    this->energy_calibration_number_->add_on_state_callback(
+        [this](float state) { this->energy_calibration_callback_(state); });
+    if (this->energy_calibration_number_->has_state()) {
+      this->energy_calibration_callback_(this->energy_calibration_number_->state);
+    }
+  }
+#endif
+
+  // calculate calibrated reference values
+  this->voltage_reference_cal_ = this->voltage_reference_ / this->voltage_cal_;
+  this->current_reference_cal_ = this->current_reference_ / this->current_cal_;
+  this->power_reference_cal_ = this->power_reference_ / this->power_cal_;
+  this->energy_reference_cal_ = this->energy_reference_ / this->energy_cal_;
+
   for (auto *i : BL0940_INIT) {
-    this->write_array(i, 6);
+    this->write_byte(this->write_command_), this->write_array(i, 5);
     delay(1);
   }
   this->flush();
 }
 
-float BL0940::update_temp_(sensor::Sensor *sensor, ube16_t temperature) const {
+float BL0940::calculate_power_reference_() {
-  auto tb = (float) (temperature.h << 8 | temperature.l);
+  // calculate power reference based on voltage and current reference
+  return this->voltage_reference_cal_ * this->current_reference_cal_ * 4046 / 324004 / 79931;
+}
+
+float BL0940::calculate_energy_reference_() {
+  // formula: 3600000 * 4046 * RL * R1 * 1000 / (1638.4 * 256) / Vref² / (R1 + R2)
+  // or:  power_reference_ * 3600000 / (1638.4 * 256)
+  return this->power_reference_cal_ * 3600000 / (1638.4 * 256);
+}
+
+float BL0940::calculate_calibration_value_(float state) { return (100 + state) / 100; }
+
+void BL0940::reset_calibration() {
+#ifdef USE_NUMBER
+  if (this->current_calibration_number_ != nullptr && this->current_cal_ != 1) {
+    this->current_calibration_number_->make_call().set_value(0).perform();
+  }
+  if (this->voltage_calibration_number_ != nullptr && this->voltage_cal_ != 1) {
+    this->voltage_calibration_number_->make_call().set_value(0).perform();
+  }
+  if (this->power_calibration_number_ != nullptr && this->power_cal_ != 1) {
+    this->power_calibration_number_->make_call().set_value(0).perform();
+  }
+  if (this->energy_calibration_number_ != nullptr && this->energy_cal_ != 1) {
+    this->energy_calibration_number_->make_call().set_value(0).perform();
+  }
+#endif
+  ESP_LOGD(TAG, "external calibration values restored to initial state");
+}
+
+void BL0940::current_calibration_callback_(float state) {
+  this->current_cal_ = this->calculate_calibration_value_(state);
+  ESP_LOGV(TAG, "update current calibration state: %f", this->current_cal_);
+  this->recalibrate_();
+}
+void BL0940::voltage_calibration_callback_(float state) {
+  this->voltage_cal_ = this->calculate_calibration_value_(state);
+  ESP_LOGV(TAG, "update voltage calibration state: %f", this->voltage_cal_);
+  this->recalibrate_();
+}
+void BL0940::power_calibration_callback_(float state) {
+  this->power_cal_ = this->calculate_calibration_value_(state);
+  ESP_LOGV(TAG, "update power calibration state: %f", this->power_cal_);
+  this->recalibrate_();
+}
+void BL0940::energy_calibration_callback_(float state) {
+  this->energy_cal_ = this->calculate_calibration_value_(state);
+  ESP_LOGV(TAG, "update energy calibration state: %f", this->energy_cal_);
+  this->recalibrate_();
+}
+
+void BL0940::recalibrate_() {
+  ESP_LOGV(TAG, "Recalibrating reference values");
+  this->voltage_reference_cal_ = this->voltage_reference_ / this->voltage_cal_;
+  this->current_reference_cal_ = this->current_reference_ / this->current_cal_;
+
+  if (this->voltage_cal_ != 1 || this->current_cal_ != 1) {
+    this->power_reference_ = this->calculate_power_reference_();
+  }
+  this->power_reference_cal_ = this->power_reference_ / this->power_cal_;
+
+  if (this->voltage_cal_ != 1 || this->current_cal_ != 1 || this->power_cal_ != 1) {
+    this->energy_reference_ = this->calculate_energy_reference_();
+  }
+  this->energy_reference_cal_ = this->energy_reference_ / this->energy_cal_;
+
+  ESP_LOGD(TAG,
+           "Recalibrated reference values:\n"
+           "Voltage: %f\n, Current: %f\n, Power: %f\n, Energy: %f\n",
+           this->voltage_reference_cal_, this->current_reference_cal_, this->power_reference_cal_,
+           this->energy_reference_cal_);
+}
+
+float BL0940::update_temp_(sensor::Sensor *sensor, uint16_le_t temperature) const {
+  auto tb = (float) temperature;
   float converted_temp = ((float) 170 / 448) * (tb / 2 - 32) - 45;
   if (sensor != nullptr) {
     if (sensor->has_state() && std::abs(converted_temp - sensor->get_state()) > max_temperature_diff_) {
@@ -87,33 +201,40 @@ float BL0940::update_temp_(sensor::Sensor *sensor, ube16_t temperature) const {
   return converted_temp;
 }
 
-void BL0940::received_package_(const DataPacket *data) const {
+void BL0940::received_package_(DataPacket *data) {
   // Bad header
   if (data->frame_header != BL0940_PACKET_HEADER) {
     ESP_LOGI(TAG, "Invalid data. Header mismatch: %d", data->frame_header);
     return;
   }
 
-  float v_rms = (float) to_uint32_t(data->v_rms) / voltage_reference_;
+  // cf_cnt is only 24 bits, so track overflows
-  float i_rms = (float) to_uint32_t(data->i_rms) / current_reference_;
+  uint32_t cf_cnt = (uint24_t) data->cf_cnt;
-  float watt = (float) to_int32_t(data->watt) / power_reference_;
+  cf_cnt |= this->prev_cf_cnt_ & 0xff000000;
-  uint32_t cf_cnt = to_uint32_t(data->cf_cnt);
+  if (cf_cnt < this->prev_cf_cnt_) {
-  float total_energy_consumption = (float) cf_cnt / energy_reference_;
+    cf_cnt += 0x1000000;
+  }
+  this->prev_cf_cnt_ = cf_cnt;
 
-  float tps1 = update_temp_(internal_temperature_sensor_, data->tps1);
+  float v_rms = (uint24_t) data->v_rms / this->voltage_reference_cal_;
-  float tps2 = update_temp_(external_temperature_sensor_, data->tps2);
+  float i_rms = (uint24_t) data->i_rms / this->current_reference_cal_;
+  float watt = (int24_t) data->watt / this->power_reference_cal_;
+  float total_energy_consumption = cf_cnt / this->energy_reference_cal_;
 
-  if (voltage_sensor_ != nullptr) {
+  float tps1 = update_temp_(this->internal_temperature_sensor_, data->tps1);
-    voltage_sensor_->publish_state(v_rms);
+  float tps2 = update_temp_(this->external_temperature_sensor_, data->tps2);
+
+  if (this->voltage_sensor_ != nullptr) {
+    this->voltage_sensor_->publish_state(v_rms);
   }
-  if (current_sensor_ != nullptr) {
+  if (this->current_sensor_ != nullptr) {
-    current_sensor_->publish_state(i_rms);
+    this->current_sensor_->publish_state(i_rms);
   }
-  if (power_sensor_ != nullptr) {
+  if (this->power_sensor_ != nullptr) {
-    power_sensor_->publish_state(watt);
+    this->power_sensor_->publish_state(watt);
   }
-  if (energy_sensor_ != nullptr) {
+  if (this->energy_sensor_ != nullptr) {
-    energy_sensor_->publish_state(total_energy_consumption);
+    this->energy_sensor_->publish_state(total_energy_consumption);
   }
 
   ESP_LOGV(TAG, "BL0940: U %fV, I %fA, P %fW, Cnt %" PRId32 ", ∫P %fkWh, T1 %f°C, T2 %f°C", v_rms, i_rms, watt, cf_cnt,
@@ -121,7 +242,27 @@ void BL0940::received_package_(const DataPacket *data) const {
 }
 
 void BL0940::dump_config() {  // NOLINT(readability-function-cognitive-complexity)
-  ESP_LOGCONFIG(TAG, "BL0940:");
+  ESP_LOGCONFIG(TAG,
+                "BL0940:\n"
+                "  LEGACY MODE: %s\n"
+                "  READ  CMD: 0x%02X\n"
+                "  WRITE CMD: 0x%02X\n"
+                "  ------------------\n"
+                "  Current reference: %f\n"
+                "  Energy reference: %f\n"
+                "  Power reference: %f\n"
+                "  Voltage reference: %f\n",
+                TRUEFALSE(this->legacy_mode_enabled_), this->read_command_, this->write_command_,
+                this->current_reference_, this->energy_reference_, this->power_reference_, this->voltage_reference_);
+#ifdef USE_NUMBER
+  ESP_LOGCONFIG(TAG,
+                "BL0940:\n"
+                "  Current calibration: %f\n"
+                "  Energy calibration: %f\n"
+                "  Power calibration: %f\n"
+                "  Voltage calibration: %f\n",
+                this->current_cal_, this->energy_cal_, this->power_cal_, this->voltage_cal_);
+#endif
   LOG_SENSOR("", "Voltage", this->voltage_sensor_);
   LOG_SENSOR("", "Current", this->current_sensor_);
   LOG_SENSOR("", "Power", this->power_sensor_);
@@ -130,9 +271,5 @@ void BL0940::dump_config() {  // NOLINT(readability-function-cognitive-complexit
   LOG_SENSOR("", "External temperature", this->external_temperature_sensor_);
 }
 
-uint32_t BL0940::to_uint32_t(ube24_t input) { return input.h << 16 | input.m << 8 | input.l; }
-
-int32_t BL0940::to_int32_t(sbe24_t input) { return input.h << 16 | input.m << 8 | input.l; }
-
 }  // namespace bl0940
 }  // namespace esphome

esphome/components/bl0940/bl0940.h

@@ -1,66 +1,48 @@
 #pragma once
 
 #include "esphome/core/component.h"
-#include "esphome/components/uart/uart.h"
+#include "esphome/core/datatypes.h"
+#include "esphome/core/defines.h"
+#ifdef USE_BUTTON
+#include "esphome/components/button/button.h"
+#endif
+#ifdef USE_NUMBER
+#include "esphome/components/number/number.h"
+#endif
 #include "esphome/components/sensor/sensor.h"
+#include "esphome/components/uart/uart.h"
 
 namespace esphome {
 namespace bl0940 {
 
-static const float BL0940_PREF = 1430;
-static const float BL0940_UREF = 33000;
-static const float BL0940_IREF = 275000;  // 2750 from tasmota. Seems to generate values 100 times too high
-
-// Measured to 297J  per click according to power consumption of 5 minutes
-// Converted to kWh (3.6MJ per kwH). Used to be 256 * 1638.4
-static const float BL0940_EREF = 3.6e6 / 297;
-
-struct ube24_t {  // NOLINT(readability-identifier-naming,altera-struct-pack-align)
-  uint8_t l;
-  uint8_t m;
-  uint8_t h;
-} __attribute__((packed));
-
-struct ube16_t {  // NOLINT(readability-identifier-naming,altera-struct-pack-align)
-  uint8_t l;
-  uint8_t h;
-} __attribute__((packed));
-
-struct sbe24_t {  // NOLINT(readability-identifier-naming,altera-struct-pack-align)
-  uint8_t l;
-  uint8_t m;
-  int8_t h;
-} __attribute__((packed));
-
 // Caveat: All these values are big endian (low - middle - high)
-
+struct DataPacket {
-union DataPacket {  // NOLINT(altera-struct-pack-align)
+  uint8_t frame_header;    // Packet header (0x58 in EN docs, 0x55 in CN docs and Tasmota tests)
-  uint8_t raw[35];
+  uint24_le_t i_fast_rms;  // Fast RMS current
-  struct {
+  uint24_le_t i_rms;       // RMS current
-    uint8_t frame_header;  // value of 0x58 according to docs. 0x55 according to Tasmota real world tests. Reality wins.
+  uint24_t RESERVED0;      // Reserved
-    ube24_t i_fast_rms;    // 0x00
+  uint24_le_t v_rms;       // RMS voltage
-    ube24_t i_rms;         // 0x04
+  uint24_t RESERVED1;      // Reserved
-    ube24_t RESERVED0;     // reserved
+  int24_le_t watt;         // Active power (can be negative for bidirectional measurement)
-    ube24_t v_rms;         // 0x06
+  uint24_t RESERVED2;      // Reserved
-    ube24_t RESERVED1;     // reserved
+  uint24_le_t cf_cnt;      // Energy pulse count
-    sbe24_t watt;          // 0x08
+  uint24_t RESERVED3;      // Reserved
-    ube24_t RESERVED2;     // reserved
+  uint16_le_t tps1;        // Internal temperature sensor 1
-    ube24_t cf_cnt;        // 0x0A
+  uint8_t RESERVED4;       // Reserved (should be 0x00)
-    ube24_t RESERVED3;     // reserved
+  uint16_le_t tps2;        // Internal temperature sensor 2
-    ube16_t tps1;          // 0x0c
+  uint8_t RESERVED5;       // Reserved (should be 0x00)
-    uint8_t RESERVED4;     // value of 0x00
+  uint8_t checksum;        // Packet checksum
-    ube16_t tps2;          // 0x0c
-    uint8_t RESERVED5;     // value of 0x00
-    uint8_t checksum;      // checksum
-  };
 } __attribute__((packed));
 
 class BL0940 : public PollingComponent, public uart::UARTDevice {
  public:
+  // Sensor setters
   void set_voltage_sensor(sensor::Sensor *voltage_sensor) { voltage_sensor_ = voltage_sensor; }
   void set_current_sensor(sensor::Sensor *current_sensor) { current_sensor_ = current_sensor; }
   void set_power_sensor(sensor::Sensor *power_sensor) { power_sensor_ = power_sensor; }
   void set_energy_sensor(sensor::Sensor *energy_sensor) { energy_sensor_ = energy_sensor; }
+
+  // Temperature sensor setters
   void set_internal_temperature_sensor(sensor::Sensor *internal_temperature_sensor) {
     internal_temperature_sensor_ = internal_temperature_sensor;
   }
@@ -68,42 +50,105 @@ class BL0940 : public PollingComponent, public uart::UARTDevice {
     external_temperature_sensor_ = external_temperature_sensor;
   }
 
-  void loop() override;
+  // Configuration setters
+  void set_legacy_mode(bool enable) { this->legacy_mode_enabled_ = enable; }
+  void set_read_command(uint8_t read_command) { this->read_command_ = read_command; }
+  void set_write_command(uint8_t write_command) { this->write_command_ = write_command; }
 
+  // Reference value setters (used for calibration and conversion)
+  void set_current_reference(float current_ref) { this->current_reference_ = current_ref; }
+  void set_energy_reference(float energy_ref) { this->energy_reference_ = energy_ref; }
+  void set_power_reference(float power_ref) { this->power_reference_ = power_ref; }
+  void set_voltage_reference(float voltage_ref) { this->voltage_reference_ = voltage_ref; }
+
+#ifdef USE_NUMBER
+  // Calibration number setters (for Home Assistant number entities)
+  void set_current_calibration_number(number::Number *num) { this->current_calibration_number_ = num; }
+  void set_voltage_calibration_number(number::Number *num) { this->voltage_calibration_number_ = num; }
+  void set_power_calibration_number(number::Number *num) { this->power_calibration_number_ = num; }
+  void set_energy_calibration_number(number::Number *num) { this->energy_calibration_number_ = num; }
+#endif
+
+#ifdef USE_BUTTON
+  // Resets all calibration values to defaults (can be triggered by a button)
+  void reset_calibration();
+#endif
+
+  // Core component methods
+  void loop() override;
   void update() override;
   void setup() override;
   void dump_config() override;
 
  protected:
-  sensor::Sensor *voltage_sensor_{nullptr};
+  // --- Sensor pointers ---
-  sensor::Sensor *current_sensor_{nullptr};
+  sensor::Sensor *voltage_sensor_{nullptr};               // Voltage sensor
-  // NB This may be negative as the circuits is seemingly able to measure
+  sensor::Sensor *current_sensor_{nullptr};               // Current sensor
-  // power in both directions
+  sensor::Sensor *power_sensor_{nullptr};                 // Power sensor (can be negative for bidirectional)
-  sensor::Sensor *power_sensor_{nullptr};
+  sensor::Sensor *energy_sensor_{nullptr};                // Energy sensor
-  sensor::Sensor *energy_sensor_{nullptr};
+  sensor::Sensor *internal_temperature_sensor_{nullptr};  // Internal temperature sensor
-  sensor::Sensor *internal_temperature_sensor_{nullptr};
+  sensor::Sensor *external_temperature_sensor_{nullptr};  // External temperature sensor
-  sensor::Sensor *external_temperature_sensor_{nullptr};
 
-  // Max difference between two measurements of the temperature. Used to avoid noise.
+#ifdef USE_NUMBER
-  float max_temperature_diff_{0};
+  // --- Calibration number entities (for dynamic calibration via HA UI) ---
-  // Divide by this to turn into Watt
+  number::Number *voltage_calibration_number_{nullptr};
-  float power_reference_ = BL0940_PREF;
+  number::Number *current_calibration_number_{nullptr};
-  // Divide by this to turn into Volt
+  number::Number *power_calibration_number_{nullptr};
-  float voltage_reference_ = BL0940_UREF;
+  number::Number *energy_calibration_number_{nullptr};
-  // Divide by this to turn into Ampere
+#endif
-  float current_reference_ = BL0940_IREF;
-  // Divide by this to turn into kWh
-  float energy_reference_ = BL0940_EREF;
 
-  float update_temp_(sensor::Sensor *sensor, ube16_t packed_temperature) const;
+  // --- Internal state ---
+  uint32_t prev_cf_cnt_ = 0;       // Previous energy pulse count (for energy calculation)
+  float max_temperature_diff_{0};  // Max allowed temperature difference between two measurements (noise filter)
 
-  static uint32_t to_uint32_t(ube24_t input);
+  // --- Reference values for conversion ---
+  float power_reference_;        // Divider for raw power to get Watts
+  float power_reference_cal_;    // Calibrated power reference
+  float voltage_reference_;      // Divider for raw voltage to get Volts
+  float voltage_reference_cal_;  // Calibrated voltage reference
+  float current_reference_;      // Divider for raw current to get Amperes
+  float current_reference_cal_;  // Calibrated current reference
+  float energy_reference_;       // Divider for raw energy to get kWh
+  float energy_reference_cal_;   // Calibrated energy reference
 
-  static int32_t to_int32_t(sbe24_t input);
+  // --- Home Assistant calibration values (multipliers, default 1) ---
+  float current_cal_{1};
+  float voltage_cal_{1};
+  float power_cal_{1};
+  float energy_cal_{1};
 
-  static bool validate_checksum(const DataPacket *data);
+  // --- Protocol commands ---
+  uint8_t read_command_;
+  uint8_t write_command_;
 
-  void received_package_(const DataPacket *data) const;
+  // --- Mode flags ---
+  bool legacy_mode_enabled_ = true;
+
+  // --- Methods ---
+  // Converts packed temperature value to float and updates the sensor
+  float update_temp_(sensor::Sensor *sensor, uint16_le_t packed_temperature) const;
+
+  // Validates the checksum of a received data packet
+  bool validate_checksum_(DataPacket *data);
+
+  // Handles a received data packet
+  void received_package_(DataPacket *data);
+
+  // Calculates reference values for calibration and conversion
+  float calculate_energy_reference_();
+  float calculate_power_reference_();
+  float calculate_calibration_value_(float state);
+
+  // Calibration update callbacks (used with number entities)
+  void current_calibration_callback_(float state);
+  void voltage_calibration_callback_(float state);
+  void power_calibration_callback_(float state);
+  void energy_calibration_callback_(float state);
+  void reset_calibration_callback_();
+
+  // Recalculates all reference values after calibration changes
+  void recalibrate_();
 };
+
 }  // namespace bl0940
 }  // namespace esphome

esphome/components/bl0940/button/__init__.py

@@ -0,0 +1,27 @@
+import esphome.codegen as cg
+from esphome.components import button
+import esphome.config_validation as cv
+from esphome.const import ENTITY_CATEGORY_CONFIG, ICON_RESTART
+
+from .. import CONF_BL0940_ID, bl0940_ns
+from ..sensor import BL0940
+
+CalibrationResetButton = bl0940_ns.class_(
+    "CalibrationResetButton", button.Button, cg.Component
+)
+
+CONFIG_SCHEMA = cv.All(
+    button.button_schema(
+        CalibrationResetButton,
+        entity_category=ENTITY_CATEGORY_CONFIG,
+        icon=ICON_RESTART,
+    )
+    .extend({cv.GenerateID(CONF_BL0940_ID): cv.use_id(BL0940)})
+    .extend(cv.COMPONENT_SCHEMA)
+)
+
+
+async def to_code(config):
+    var = await button.new_button(config)
+    await cg.register_component(var, config)
+    await cg.register_parented(var, config[CONF_BL0940_ID])

esphome/components/bl0940/button/calibration_reset_button.cpp

@@ -0,0 +1,20 @@
+#include "calibration_reset_button.h"
+#include "../bl0940.h"
+#include "esphome/core/hal.h"
+#include "esphome/core/log.h"
+#include "esphome/core/application.h"
+
+namespace esphome {
+namespace bl0940 {
+
+static const char *const TAG = "bl0940.button.calibration_reset";
+
+void CalibrationResetButton::dump_config() { LOG_BUTTON("", "Calibration Reset Button", this); }
+
+void CalibrationResetButton::press_action() {
+  ESP_LOGI(TAG, "Resetting calibration defaults...");
+  this->parent_->reset_calibration();
+}
+
+}  // namespace bl0940
+}  // namespace esphome

esphome/components/bl0940/button/calibration_reset_button.h

@@ -0,0 +1,19 @@
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/button/button.h"
+
+namespace esphome {
+namespace bl0940 {
+
+class BL0940;  // Forward declaration of BL0940 class
+
+class CalibrationResetButton : public button::Button, public Component, public Parented<BL0940> {
+ public:
+  void dump_config() override;
+
+  void press_action() override;
+};
+
+}  // namespace bl0940
+}  // namespace esphome

esphome/components/bl0940/number/__init__.py

@@ -0,0 +1,94 @@
+import esphome.codegen as cg
+from esphome.components import number
+import esphome.config_validation as cv
+from esphome.const import (
+    CONF_MAX_VALUE,
+    CONF_MIN_VALUE,
+    CONF_MODE,
+    CONF_RESTORE_VALUE,
+    CONF_STEP,
+    ENTITY_CATEGORY_CONFIG,
+    UNIT_PERCENT,
+)
+
+from .. import CONF_BL0940_ID, bl0940_ns
+from ..sensor import BL0940
+
+# Define calibration types
+CONF_CURRENT_CALIBRATION = "current_calibration"
+CONF_VOLTAGE_CALIBRATION = "voltage_calibration"
+CONF_POWER_CALIBRATION = "power_calibration"
+CONF_ENERGY_CALIBRATION = "energy_calibration"
+
+BL0940Number = bl0940_ns.class_("BL0940Number")
+
+CalibrationNumber = bl0940_ns.class_(
+    "CalibrationNumber", number.Number, cg.PollingComponent
+)
+
+
+def validate_min_max(config):
+    if config[CONF_MAX_VALUE] <= config[CONF_MIN_VALUE]:
+        raise cv.Invalid("max_value must be greater than min_value")
+    return config
+
+
+CALIBRATION_SCHEMA = cv.All(
+    number.number_schema(
+        CalibrationNumber,
+        entity_category=ENTITY_CATEGORY_CONFIG,
+        unit_of_measurement=UNIT_PERCENT,
+    )
+    .extend(
+        {
+            cv.Optional(CONF_MODE, default="BOX"): cv.enum(number.NUMBER_MODES),
+            cv.Optional(CONF_MAX_VALUE, default=10): cv.All(
+                cv.float_, cv.Range(max=50)
+            ),
+            cv.Optional(CONF_MIN_VALUE, default=-10): cv.All(
+                cv.float_, cv.Range(min=-50)
+            ),
+            cv.Optional(CONF_STEP, default=0.1): cv.positive_float,
+            cv.Optional(CONF_RESTORE_VALUE): cv.boolean,
+        }
+    )
+    .extend(cv.COMPONENT_SCHEMA),
+    validate_min_max,
+)
+
+# Configuration schema for BL0940 numbers
+CONFIG_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(): cv.declare_id(BL0940Number),
+        cv.GenerateID(CONF_BL0940_ID): cv.use_id(BL0940),
+        cv.Optional(CONF_CURRENT_CALIBRATION): CALIBRATION_SCHEMA,
+        cv.Optional(CONF_VOLTAGE_CALIBRATION): CALIBRATION_SCHEMA,
+        cv.Optional(CONF_POWER_CALIBRATION): CALIBRATION_SCHEMA,
+        cv.Optional(CONF_ENERGY_CALIBRATION): CALIBRATION_SCHEMA,
+    }
+)
+
+
+async def to_code(config):
+    # Get the BL0940 component instance
+    bl0940 = await cg.get_variable(config[CONF_BL0940_ID])
+
+    # Process all calibration types
+    for cal_type, setter_method in [
+        (CONF_CURRENT_CALIBRATION, "set_current_calibration_number"),
+        (CONF_VOLTAGE_CALIBRATION, "set_voltage_calibration_number"),
+        (CONF_POWER_CALIBRATION, "set_power_calibration_number"),
+        (CONF_ENERGY_CALIBRATION, "set_energy_calibration_number"),
+    ]:
+        if conf := config.get(cal_type):
+            var = await number.new_number(
+                conf,
+                min_value=conf.get(CONF_MIN_VALUE),
+                max_value=conf.get(CONF_MAX_VALUE),
+                step=conf.get(CONF_STEP),
+            )
+            await cg.register_component(var, conf)
+
+            if restore_value := config.get(CONF_RESTORE_VALUE):
+                cg.add(var.set_restore_value(restore_value))
+            cg.add(getattr(bl0940, setter_method)(var))

esphome/components/bl0940/number/calibration_number.cpp

@@ -0,0 +1,29 @@
+#include "calibration_number.h"
+#include "esphome/core/log.h"
+
+namespace esphome {
+namespace bl0940 {
+
+static const char *const TAG = "bl0940.number";
+
+void CalibrationNumber::setup() {
+  float value = 0.0f;
+  if (this->restore_value_) {
+    this->pref_ = global_preferences->make_preference<float>(this->get_object_id_hash());
+    if (!this->pref_.load(&value)) {
+      value = 0.0f;
+    }
+  }
+  this->publish_state(value);
+}
+
+void CalibrationNumber::control(float value) {
+  this->publish_state(value);
+  if (this->restore_value_)
+    this->pref_.save(&value);
+}
+
+void CalibrationNumber::dump_config() { LOG_NUMBER("", "Calibration Number", this); }
+
+}  // namespace bl0940
+}  // namespace esphome

esphome/components/bl0940/number/calibration_number.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "esphome/components/number/number.h"
+#include "esphome/core/component.h"
+#include "esphome/core/preferences.h"
+
+namespace esphome {
+namespace bl0940 {
+
+class CalibrationNumber : public number::Number, public Component {
+ public:
+  void setup() override;
+  void dump_config() override;
+  float get_setup_priority() const override { return setup_priority::HARDWARE; }
+
+  void set_restore_value(bool restore_value) { this->restore_value_ = restore_value; }
+
+ protected:
+  void control(float value) override;
+  bool restore_value_{true};
+
+  ESPPreferenceObject pref_;
+};
+
+}  // namespace bl0940
+}  // namespace esphome

esphome/components/bl0940/sensor.py

@@ -8,6 +8,7 @@ from esphome.const import (
     CONF_ID,
     CONF_INTERNAL_TEMPERATURE,
     CONF_POWER,
+    CONF_REFERENCE_VOLTAGE,
     CONF_VOLTAGE,
     DEVICE_CLASS_CURRENT,
     DEVICE_CLASS_ENERGY,
@@ -23,12 +24,133 @@ from esphome.const import (
     UNIT_WATT,
 )
 
+from . import bl0940_ns
+
 DEPENDENCIES = ["uart"]
 
-
-bl0940_ns = cg.esphome_ns.namespace("bl0940")
 BL0940 = bl0940_ns.class_("BL0940", cg.PollingComponent, uart.UARTDevice)
 
+CONF_LEGACY_MODE = "legacy_mode"
+
+CONF_READ_COMMAND = "read_command"
+CONF_WRITE_COMMAND = "write_command"
+
+CONF_RESISTOR_SHUNT = "resistor_shunt"
+CONF_RESISTOR_ONE = "resistor_one"
+CONF_RESISTOR_TWO = "resistor_two"
+
+CONF_CURRENT_REFERENCE = "current_reference"
+CONF_ENERGY_REFERENCE = "energy_reference"
+CONF_POWER_REFERENCE = "power_reference"
+CONF_VOLTAGE_REFERENCE = "voltage_reference"
+
+DEFAULT_BL0940_READ_COMMAND = 0x58
+DEFAULT_BL0940_WRITE_COMMAND = 0xA1
+
+# Values according to BL0940 application note:
+# https://www.belling.com.cn/media/file_object/bel_product/BL0940/guide/BL0940_APPNote_TSSOP14_V1.04_EN.pdf
+DEFAULT_BL0940_VREF = 1.218  # Vref = 1.218
+DEFAULT_BL0940_RL = 1  # RL = 1 mΩ
+DEFAULT_BL0940_R1 = 0.51  # R1 = 0.51 kΩ
+DEFAULT_BL0940_R2 = 1950  # R2 = 5 x 390 kΩ -> 1950 kΩ
+
+# ----------------------------------------------------
+# values from initial implementation
+DEFAULT_BL0940_LEGACY_READ_COMMAND = 0x50
+DEFAULT_BL0940_LEGACY_WRITE_COMMAND = 0xA0
+
+DEFAULT_BL0940_LEGACY_UREF = 33000
+DEFAULT_BL0940_LEGACY_IREF = 275000
+DEFAULT_BL0940_LEGACY_PREF = 1430
+# Measured to 297J  per click according to power consumption of 5 minutes
+# Converted to kWh (3.6MJ per kwH). Used to be 256 * 1638.4
+DEFAULT_BL0940_LEGACY_EREF = 3.6e6 / 297
+# ----------------------------------------------------
+
+
+# methods to calculate voltage and current reference values
+def calculate_voltage_reference(vref, r_one, r_two):
+    # formula: 79931 / Vref * (R1 * 1000) / (R1 + R2)
+    return 79931 / vref * (r_one * 1000) / (r_one + r_two)
+
+
+def calculate_current_reference(vref, r_shunt):
+    # formula: 324004 * RL / Vref
+    return 324004 * r_shunt / vref
+
+
+def calculate_power_reference(voltage_reference, current_reference):
+    # calculate power reference based on voltage and current reference
+    return voltage_reference * current_reference * 4046 / 324004 / 79931
+
+
+def calculate_energy_reference(power_reference):
+    # formula: power_reference * 3600000 / (1638.4 * 256)
+    return power_reference * 3600000 / (1638.4 * 256)
+
+
+def validate_legacy_mode(config):
+    # Only allow schematic calibration options if legacy_mode is False
+    if config.get(CONF_LEGACY_MODE, True):
+        forbidden = [
+            CONF_REFERENCE_VOLTAGE,
+            CONF_RESISTOR_SHUNT,
+            CONF_RESISTOR_ONE,
+            CONF_RESISTOR_TWO,
+        ]
+        for key in forbidden:
+            if key in config:
+                raise cv.Invalid(
+                    f"Option '{key}' is only allowed when legacy_mode: false"
+                )
+    return config
+
+
+def set_command_defaults(config):
+    # Set defaults for read_command and write_command based on legacy_mode
+    legacy = config.get(CONF_LEGACY_MODE, True)
+    if legacy:
+        config.setdefault(CONF_READ_COMMAND, DEFAULT_BL0940_LEGACY_READ_COMMAND)
+        config.setdefault(CONF_WRITE_COMMAND, DEFAULT_BL0940_LEGACY_WRITE_COMMAND)
+    else:
+        config.setdefault(CONF_READ_COMMAND, DEFAULT_BL0940_READ_COMMAND)
+        config.setdefault(CONF_WRITE_COMMAND, DEFAULT_BL0940_WRITE_COMMAND)
+    return config
+
+
+def set_reference_values(config):
+    # Set default reference values based on legacy_mode
+    if config.get(CONF_LEGACY_MODE, True):
+        config.setdefault(CONF_VOLTAGE_REFERENCE, DEFAULT_BL0940_LEGACY_UREF)
+        config.setdefault(CONF_CURRENT_REFERENCE, DEFAULT_BL0940_LEGACY_IREF)
+        config.setdefault(CONF_POWER_REFERENCE, DEFAULT_BL0940_LEGACY_PREF)
+        config.setdefault(CONF_ENERGY_REFERENCE, DEFAULT_BL0940_LEGACY_PREF)
+    else:
+        vref = config.get(CONF_VOLTAGE_REFERENCE, DEFAULT_BL0940_VREF)
+        r_one = config.get(CONF_RESISTOR_ONE, DEFAULT_BL0940_R1)
+        r_two = config.get(CONF_RESISTOR_TWO, DEFAULT_BL0940_R2)
+        r_shunt = config.get(CONF_RESISTOR_SHUNT, DEFAULT_BL0940_RL)
+
+        config.setdefault(
+            CONF_VOLTAGE_REFERENCE, calculate_voltage_reference(vref, r_one, r_two)
+        )
+        config.setdefault(
+            CONF_CURRENT_REFERENCE, calculate_current_reference(vref, r_shunt)
+        )
+        config.setdefault(
+            CONF_POWER_REFERENCE,
+            calculate_power_reference(
+                config.get(CONF_VOLTAGE_REFERENCE), config.get(CONF_CURRENT_REFERENCE)
+            ),
+        )
+        config.setdefault(
+            CONF_ENERGY_REFERENCE,
+            calculate_energy_reference(config.get(CONF_POWER_REFERENCE)),
+        )
+
+    return config
+
+
 CONFIG_SCHEMA = (
     cv.Schema(
         {
@@ -69,10 +191,24 @@ CONFIG_SCHEMA = (
                 device_class=DEVICE_CLASS_TEMPERATURE,
                 state_class=STATE_CLASS_MEASUREMENT,
             ),
+            cv.Optional(CONF_LEGACY_MODE, default=True): cv.boolean,
+            cv.Optional(CONF_READ_COMMAND): cv.hex_uint8_t,
+            cv.Optional(CONF_WRITE_COMMAND): cv.hex_uint8_t,
+            cv.Optional(CONF_REFERENCE_VOLTAGE): cv.float_,
+            cv.Optional(CONF_RESISTOR_SHUNT): cv.float_,
+            cv.Optional(CONF_RESISTOR_ONE): cv.float_,
+            cv.Optional(CONF_RESISTOR_TWO): cv.float_,
+            cv.Optional(CONF_CURRENT_REFERENCE): cv.float_,
+            cv.Optional(CONF_ENERGY_REFERENCE): cv.float_,
+            cv.Optional(CONF_POWER_REFERENCE): cv.float_,
+            cv.Optional(CONF_VOLTAGE_REFERENCE): cv.float_,
         }
     )
     .extend(cv.polling_component_schema("60s"))
     .extend(uart.UART_DEVICE_SCHEMA)
+    .add_extra(validate_legacy_mode)
+    .add_extra(set_command_defaults)
+    .add_extra(set_reference_values)
 )
 
 
@@ -99,3 +235,16 @@ async def to_code(config):
     if external_temperature_config := config.get(CONF_EXTERNAL_TEMPERATURE):
         sens = await sensor.new_sensor(external_temperature_config)
         cg.add(var.set_external_temperature_sensor(sens))
+
+    # enable legacy mode
+    cg.add(var.set_legacy_mode(config.get(CONF_LEGACY_MODE)))
+
+    # Set bl0940 commands after validator has determined which defaults to use if not set
+    cg.add(var.set_read_command(config.get(CONF_READ_COMMAND)))
+    cg.add(var.set_write_command(config.get(CONF_WRITE_COMMAND)))
+
+    # Set reference values after validator has set the values either from defaults or calculated
+    cg.add(var.set_current_reference(config.get(CONF_CURRENT_REFERENCE)))
+    cg.add(var.set_voltage_reference(config.get(CONF_VOLTAGE_REFERENCE)))
+    cg.add(var.set_power_reference(config.get(CONF_POWER_REFERENCE)))
+    cg.add(var.set_energy_reference(config.get(CONF_ENERGY_REFERENCE)))

esphome/components/bl0942/bl0942.cpp

@@ -149,7 +149,7 @@ void BL0942::setup() {
   this->write_reg_(BL0942_REG_USR_WRPROT, 0);
 
   if (this->read_reg_(BL0942_REG_MODE) != mode)
-    this->status_set_warning("BL0942 setup failed!");
+    this->status_set_warning(LOG_STR("BL0942 setup failed!"));
 
   this->flush();
 }

esphome/components/ble_client/output/__init__.py

@@ -27,7 +27,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-def to_code(config):
+async def to_code(config):
     var = cg.new_Pvariable(config[CONF_ID])
     if len(config[CONF_SERVICE_UUID]) == len(esp32_ble_tracker.bt_uuid16_format):
         cg.add(
@@ -63,6 +63,6 @@ def to_code(config):
         )
         cg.add(var.set_char_uuid128(uuid128))
     cg.add(var.set_require_response(config[CONF_REQUIRE_RESPONSE]))
-    yield output.register_output(var, config)
+    await output.register_output(var, config)
-    yield ble_client.register_ble_node(var, config)
+    await ble_client.register_ble_node(var, config)
-    yield cg.register_component(var, config)
+    await cg.register_component(var, config)

esphome/components/bluetooth_proxy/__init__.py

@@ -80,7 +80,7 @@ CONFIG_SCHEMA = cv.All(
         cv.Schema(
             {
                 cv.GenerateID(): cv.declare_id(BluetoothProxy),
-                cv.Optional(CONF_ACTIVE, default=False): cv.boolean,
+                cv.Optional(CONF_ACTIVE, default=True): cv.boolean,
                 cv.SplitDefault(CONF_CACHE_SERVICES, esp32_idf=True): cv.All(
                     cv.only_with_esp_idf, cv.boolean
                 ),

esphome/components/bluetooth_proxy/bluetooth_connection.cpp

@@ -375,10 +375,19 @@ bool BluetoothConnection::gattc_event_handler(esp_gattc_cb_event_t event, esp_ga
 
   switch (event) {
     case ESP_GATTC_DISCONNECT_EVT: {
-      this->reset_connection_(param->disconnect.reason);
+      // Don't reset connection yet - wait for CLOSE_EVT to ensure controller has freed resources
+      // This prevents race condition where we mark slot as free before controller cleanup is complete
+      ESP_LOGD(TAG, "[%d] [%s] Disconnect, reason=0x%02x", this->connection_index_, this->address_str_.c_str(),
+               param->disconnect.reason);
+      // Send disconnection notification but don't free the slot yet
+      this->proxy_->send_device_connection(this->address_, false, 0, param->disconnect.reason);
       break;
     }
     case ESP_GATTC_CLOSE_EVT: {
+      ESP_LOGD(TAG, "[%d] [%s] Close, reason=0x%02x, freeing slot", this->connection_index_, this->address_str_.c_str(),
+               param->close.reason);
+      // Now the GATT connection is fully closed and controller resources are freed
+      // Safe to mark the connection slot as available
       this->reset_connection_(param->close.reason);
       break;
     }

esphome/components/bluetooth_proxy/bluetooth_connection.h

@@ -8,7 +8,7 @@ namespace esphome::bluetooth_proxy {
 
 class BluetoothProxy;
 
-class BluetoothConnection : public esp32_ble_client::BLEClientBase {
+class BluetoothConnection final : public esp32_ble_client::BLEClientBase {
  public:
   void dump_config() override;
   void loop() override;

esphome/components/bluetooth_proxy/bluetooth_proxy.cpp

@@ -24,6 +24,9 @@ void BluetoothProxy::setup() {
   this->connections_free_response_.limit = BLUETOOTH_PROXY_MAX_CONNECTIONS;
   this->connections_free_response_.free = BLUETOOTH_PROXY_MAX_CONNECTIONS;
 
+  // Capture the configured scan mode from YAML before any API changes
+  this->configured_scan_active_ = this->parent_->get_scan_active();
+
   this->parent_->add_scanner_state_callback([this](esp32_ble_tracker::ScannerState state) {
     if (this->api_connection_ != nullptr) {
       this->send_bluetooth_scanner_state_(state);
@@ -36,6 +39,9 @@ void BluetoothProxy::send_bluetooth_scanner_state_(esp32_ble_tracker::ScannerSta
   resp.state = static_cast<api::enums::BluetoothScannerState>(state);
   resp.mode = this->parent_->get_scan_active() ? api::enums::BluetoothScannerMode::BLUETOOTH_SCANNER_MODE_ACTIVE
                                                : api::enums::BluetoothScannerMode::BLUETOOTH_SCANNER_MODE_PASSIVE;
+  resp.configured_mode = this->configured_scan_active_
+                             ? api::enums::BluetoothScannerMode::BLUETOOTH_SCANNER_MODE_ACTIVE
+                             : api::enums::BluetoothScannerMode::BLUETOOTH_SCANNER_MODE_PASSIVE;
   this->api_connection_->send_message(resp, api::BluetoothScannerStateResponse::MESSAGE_TYPE);
 }
 
@@ -183,6 +189,12 @@ void BluetoothProxy::bluetooth_device_request(const api::BluetoothDeviceRequest
         this->send_device_connection(msg.address, false);
         return;
       }
+      if (!msg.has_address_type) {
+        ESP_LOGE(TAG, "[%d] [%s] Missing address type in connect request", connection->get_connection_index(),
+                 connection->address_str().c_str());
+        this->send_device_connection(msg.address, false);
+        return;
+      }
       if (connection->state() == espbt::ClientState::CONNECTED ||
           connection->state() == espbt::ClientState::ESTABLISHED) {
         this->log_connection_request_ignored_(connection, connection->state());
@@ -209,13 +221,9 @@ void BluetoothProxy::bluetooth_device_request(const api::BluetoothDeviceRequest
         connection->set_connection_type(espbt::ConnectionType::V3_WITHOUT_CACHE);
         this->log_connection_info_(connection, "v3 without cache");
       }
-      if (msg.has_address_type) {
       uint64_to_bd_addr(msg.address, connection->remote_bda_);
       connection->set_remote_addr_type(static_cast<esp_ble_addr_type_t>(msg.address_type));
       connection->set_state(espbt::ClientState::DISCOVERED);
-      } else {
-        connection->set_state(espbt::ClientState::SEARCHING);
-      }
       this->send_connections_free();
       break;
     }

esphome/components/bluetooth_proxy/bluetooth_proxy.h

@@ -50,7 +50,7 @@ enum BluetoothProxySubscriptionFlag : uint32_t {
   SUBSCRIPTION_RAW_ADVERTISEMENTS = 1 << 0,
 };
 
-class BluetoothProxy : public esp32_ble_tracker::ESPBTDeviceListener, public Component {
+class BluetoothProxy final : public esp32_ble_tracker::ESPBTDeviceListener, public Component {
   friend class BluetoothConnection;  // Allow connection to update connections_free_response_
  public:
   BluetoothProxy();
@@ -161,7 +161,8 @@ class BluetoothProxy : public esp32_ble_tracker::ESPBTDeviceListener, public Com
   // Group 4: 1-byte types grouped together
   bool active_;
   uint8_t connection_count_{0};
-  // 2 bytes used, 2 bytes padding
+  bool configured_scan_active_{false};  // Configured scan mode from YAML
+  // 3 bytes used, 1 byte padding
 };
 
 extern BluetoothProxy *global_bluetooth_proxy;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)

esphome/components/bmi160/bmi160.cpp

@@ -203,7 +203,7 @@ void BMI160Component::dump_config() {
 i2c::ErrorCode BMI160Component::read_le_int16_(uint8_t reg, int16_t *value, uint8_t len) {
   uint8_t raw_data[len * 2];
   // read using read_register because we have little-endian data, and read_bytes_16 will swap it
-  i2c::ErrorCode err = this->read_register(reg, raw_data, len * 2, true);
+  i2c::ErrorCode err = this->read_register(reg, raw_data, len * 2);
   if (err != i2c::ERROR_OK) {
     return err;
   }

esphome/components/bmp280_base/bmp280_base.cpp

@@ -63,12 +63,12 @@ void BMP280Component::setup() {
 
   // Read the chip id twice, to work around a bug where the first read is 0.
   // https://community.st.com/t5/stm32-mcus-products/issue-with-reading-bmp280-chip-id-using-spi/td-p/691855
-  if (!this->read_byte(0xD0, &chip_id)) {
+  if (!this->bmp_read_byte(0xD0, &chip_id)) {
     this->error_code_ = COMMUNICATION_FAILED;
     this->mark_failed(ESP_LOG_MSG_COMM_FAIL);
     return;
   }
-  if (!this->read_byte(0xD0, &chip_id)) {
+  if (!this->bmp_read_byte(0xD0, &chip_id)) {
     this->error_code_ = COMMUNICATION_FAILED;
     this->mark_failed(ESP_LOG_MSG_COMM_FAIL);
     return;
@@ -80,7 +80,7 @@ void BMP280Component::setup() {
   }
 
   // Send a soft reset.
-  if (!this->write_byte(BMP280_REGISTER_RESET, BMP280_SOFT_RESET)) {
+  if (!this->bmp_write_byte(BMP280_REGISTER_RESET, BMP280_SOFT_RESET)) {
     this->mark_failed("Reset failed");
     return;
   }
@@ -89,7 +89,7 @@ void BMP280Component::setup() {
   uint8_t retry = 5;
   do {
     delay(2);
-    if (!this->read_byte(BMP280_REGISTER_STATUS, &status)) {
+    if (!this->bmp_read_byte(BMP280_REGISTER_STATUS, &status)) {
       this->mark_failed("Error reading status register");
       return;
     }
@@ -115,14 +115,14 @@ void BMP280Component::setup() {
   this->calibration_.p9 = this->read_s16_le_(0x9E);
 
   uint8_t config_register = 0;
-  if (!this->read_byte(BMP280_REGISTER_CONFIG, &config_register)) {
+  if (!this->bmp_read_byte(BMP280_REGISTER_CONFIG, &config_register)) {
     this->mark_failed("Read config");
     return;
   }
   config_register &= ~0b11111100;
   config_register |= 0b000 << 5;  // 0.5 ms standby time
   config_register |= (this->iir_filter_ & 0b111) << 2;
-  if (!this->write_byte(BMP280_REGISTER_CONFIG, config_register)) {
+  if (!this->bmp_write_byte(BMP280_REGISTER_CONFIG, config_register)) {
     this->mark_failed("Write config");
     return;
   }
@@ -159,7 +159,7 @@ void BMP280Component::update() {
   meas_value |= (this->temperature_oversampling_ & 0b111) << 5;
   meas_value |= (this->pressure_oversampling_ & 0b111) << 2;
   meas_value |= 0b01;  // Forced mode
-  if (!this->write_byte(BMP280_REGISTER_CONTROL, meas_value)) {
+  if (!this->bmp_write_byte(BMP280_REGISTER_CONTROL, meas_value)) {
     this->status_set_warning();
     return;
   }
@@ -188,9 +188,10 @@ void BMP280Component::update() {
 }
 
 float BMP280Component::read_temperature_(int32_t *t_fine) {
-  uint8_t data[3];
+  uint8_t data[3]{};
-  if (!this->read_bytes(BMP280_REGISTER_TEMPDATA, data, 3))
+  if (!this->bmp_read_bytes(BMP280_REGISTER_TEMPDATA, data, 3))
     return NAN;
+  ESP_LOGV(TAG, "Read temperature data, raw: %02X %02X %02X", data[0], data[1], data[2]);
   int32_t adc = ((data[0] & 0xFF) << 16) | ((data[1] & 0xFF) << 8) | (data[2] & 0xFF);
   adc >>= 4;
   if (adc == 0x80000) {
@@ -212,7 +213,7 @@ float BMP280Component::read_temperature_(int32_t *t_fine) {
 
 float BMP280Component::read_pressure_(int32_t t_fine) {
   uint8_t data[3];
-  if (!this->read_bytes(BMP280_REGISTER_PRESSUREDATA, data, 3))
+  if (!this->bmp_read_bytes(BMP280_REGISTER_PRESSUREDATA, data, 3))
     return NAN;
   int32_t adc = ((data[0] & 0xFF) << 16) | ((data[1] & 0xFF) << 8) | (data[2] & 0xFF);
   adc >>= 4;
@@ -258,12 +259,12 @@ void BMP280Component::set_pressure_oversampling(BMP280Oversampling pressure_over
 void BMP280Component::set_iir_filter(BMP280IIRFilter iir_filter) { this->iir_filter_ = iir_filter; }
 uint8_t BMP280Component::read_u8_(uint8_t a_register) {
   uint8_t data = 0;
-  this->read_byte(a_register, &data);
+  this->bmp_read_byte(a_register, &data);
   return data;
 }
 uint16_t BMP280Component::read_u16_le_(uint8_t a_register) {
   uint16_t data = 0;
-  this->read_byte_16(a_register, &data);
+  this->bmp_read_byte_16(a_register, &data);
   return (data >> 8) | (data << 8);
 }
 int16_t BMP280Component::read_s16_le_(uint8_t a_register) { return this->read_u16_le_(a_register); }

esphome/components/bmp280_base/bmp280_base.h

@@ -67,12 +67,12 @@ class BMP280Component : public PollingComponent {
   float get_setup_priority() const override;
   void update() override;
 
-  virtual bool read_byte(uint8_t a_register, uint8_t *data) = 0;
-  virtual bool write_byte(uint8_t a_register, uint8_t data) = 0;
-  virtual bool read_bytes(uint8_t a_register, uint8_t *data, size_t len) = 0;
-  virtual bool read_byte_16(uint8_t a_register, uint16_t *data) = 0;
-
  protected:
+  virtual bool bmp_read_byte(uint8_t a_register, uint8_t *data) = 0;
+  virtual bool bmp_write_byte(uint8_t a_register, uint8_t data) = 0;
+  virtual bool bmp_read_bytes(uint8_t a_register, uint8_t *data, size_t len) = 0;
+  virtual bool bmp_read_byte_16(uint8_t a_register, uint16_t *data) = 0;
+
   /// Read the temperature value and store the calculated ambient temperature in t_fine.
   float read_temperature_(int32_t *t_fine);
   /// Read the pressure value in hPa using the provided t_fine value.

esphome/components/bmp280_i2c/bmp280_i2c.cpp

@@ -5,19 +5,6 @@
 namespace esphome {
 namespace bmp280_i2c {
 
-bool BMP280I2CComponent::read_byte(uint8_t a_register, uint8_t *data) {
-  return I2CDevice::read_byte(a_register, data);
-};
-bool BMP280I2CComponent::write_byte(uint8_t a_register, uint8_t data) {
-  return I2CDevice::write_byte(a_register, data);
-};
-bool BMP280I2CComponent::read_bytes(uint8_t a_register, uint8_t *data, size_t len) {
-  return I2CDevice::read_bytes(a_register, data, len);
-};
-bool BMP280I2CComponent::read_byte_16(uint8_t a_register, uint16_t *data) {
-  return I2CDevice::read_byte_16(a_register, data);
-};
-
 void BMP280I2CComponent::dump_config() {
   LOG_I2C_DEVICE(this);
   BMP280Component::dump_config();

esphome/components/bmp280_i2c/bmp280_i2c.h

@@ -11,10 +11,12 @@ static const char *const TAG = "bmp280_i2c.sensor";
 /// This class implements support for the BMP280 Temperature+Pressure i2c sensor.
 class BMP280I2CComponent : public esphome::bmp280_base::BMP280Component, public i2c::I2CDevice {
  public:
-  bool read_byte(uint8_t a_register, uint8_t *data) override;
+  bool bmp_read_byte(uint8_t a_register, uint8_t *data) override { return read_byte(a_register, data); }
-  bool write_byte(uint8_t a_register, uint8_t data) override;
+  bool bmp_write_byte(uint8_t a_register, uint8_t data) override { return write_byte(a_register, data); }
-  bool read_bytes(uint8_t a_register, uint8_t *data, size_t len) override;
+  bool bmp_read_bytes(uint8_t a_register, uint8_t *data, size_t len) override {
-  bool read_byte_16(uint8_t a_register, uint16_t *data) override;
+    return read_bytes(a_register, data, len);
+  }
+  bool bmp_read_byte_16(uint8_t a_register, uint16_t *data) override { return read_byte_16(a_register, data); }
   void dump_config() override;
 };
 

esphome/components/bmp280_spi/bmp280_spi.cpp

@@ -28,7 +28,7 @@ void BMP280SPIComponent::setup() {
 // 0x77 is transferred, for read access, the byte 0xF7 is transferred.
 // https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmp280-ds001.pdf
 
-bool BMP280SPIComponent::read_byte(uint8_t a_register, uint8_t *data) {
+bool BMP280SPIComponent::bmp_read_byte(uint8_t a_register, uint8_t *data) {
   this->enable();
   this->transfer_byte(set_bit(a_register, 7));
   *data = this->transfer_byte(0);
@@ -36,7 +36,7 @@ bool BMP280SPIComponent::read_byte(uint8_t a_register, uint8_t *data) {
   return true;
 }
 
-bool BMP280SPIComponent::write_byte(uint8_t a_register, uint8_t data) {
+bool BMP280SPIComponent::bmp_write_byte(uint8_t a_register, uint8_t data) {
   this->enable();
   this->transfer_byte(clear_bit(a_register, 7));
   this->transfer_byte(data);
@@ -44,7 +44,7 @@ bool BMP280SPIComponent::write_byte(uint8_t a_register, uint8_t data) {
   return true;
 }
 
-bool BMP280SPIComponent::read_bytes(uint8_t a_register, uint8_t *data, size_t len) {
+bool BMP280SPIComponent::bmp_read_bytes(uint8_t a_register, uint8_t *data, size_t len) {
   this->enable();
   this->transfer_byte(set_bit(a_register, 7));
   this->read_array(data, len);
@@ -52,7 +52,7 @@ bool BMP280SPIComponent::read_bytes(uint8_t a_register, uint8_t *data, size_t le
   return true;
 }
 
-bool BMP280SPIComponent::read_byte_16(uint8_t a_register, uint16_t *data) {
+bool BMP280SPIComponent::bmp_read_byte_16(uint8_t a_register, uint16_t *data) {
   this->enable();
   this->transfer_byte(set_bit(a_register, 7));
   ((uint8_t *) data)[1] = this->transfer_byte(0);

esphome/components/bmp280_spi/bmp280_spi.h

@@ -10,10 +10,10 @@ class BMP280SPIComponent : public esphome::bmp280_base::BMP280Component,
                            public spi::SPIDevice<spi::BIT_ORDER_MSB_FIRST, spi::CLOCK_POLARITY_LOW,
                                                  spi::CLOCK_PHASE_LEADING, spi::DATA_RATE_200KHZ> {
   void setup() override;
-  bool read_byte(uint8_t a_register, uint8_t *data) override;
+  bool bmp_read_byte(uint8_t a_register, uint8_t *data) override;
-  bool write_byte(uint8_t a_register, uint8_t data) override;
+  bool bmp_write_byte(uint8_t a_register, uint8_t data) override;
-  bool read_bytes(uint8_t a_register, uint8_t *data, size_t len) override;
+  bool bmp_read_bytes(uint8_t a_register, uint8_t *data, size_t len) override;
-  bool read_byte_16(uint8_t a_register, uint16_t *data) override;
+  bool bmp_read_byte_16(uint8_t a_register, uint16_t *data) override;
 };
 
 }  // namespace bmp280_spi

esphome/components/button/__init__.py

@@ -17,7 +17,7 @@ from esphome.const import (
     DEVICE_CLASS_RESTART,
     DEVICE_CLASS_UPDATE,
 )
-from esphome.core import CORE, coroutine_with_priority
+from esphome.core import CORE, CoroPriority, coroutine_with_priority
 from esphome.core.entity_helpers import entity_duplicate_validator, setup_entity
 from esphome.cpp_generator import MockObjClass
 
@@ -134,6 +134,6 @@ async def button_press_to_code(config, action_id, template_arg, args):
     return cg.new_Pvariable(action_id, template_arg, paren)
 
 
-@coroutine_with_priority(100.0)
+@coroutine_with_priority(CoroPriority.CORE)
 async def to_code(config):
     cg.add_global(button_ns.using)

esphome/components/button/button.cpp

@@ -6,6 +6,19 @@ namespace button {
 
 static const char *const TAG = "button";
 
+// Function implementation of LOG_BUTTON macro to reduce code size
+void log_button(const char *tag, const char *prefix, const char *type, Button *obj) {
+  if (obj == nullptr) {
+    return;
+  }
+
+  ESP_LOGCONFIG(tag, "%s%s '%s'", prefix, type, obj->get_name().c_str());
+
+  if (!obj->get_icon_ref().empty()) {
+    ESP_LOGCONFIG(tag, "%s  Icon: '%s'", prefix, obj->get_icon_ref().c_str());
+  }
+}
+
 void Button::press() {
   ESP_LOGD(TAG, "'%s' Pressed.", this->get_name().c_str());
   this->press_action();

esphome/components/button/button.h

@@ -7,13 +7,10 @@
 namespace esphome {
 namespace button {
 
-#define LOG_BUTTON(prefix, type, obj) \
+class Button;
-  if ((obj) != nullptr) { \
+void log_button(const char *tag, const char *prefix, const char *type, Button *obj);
-    ESP_LOGCONFIG(TAG, "%s%s '%s'", prefix, LOG_STR_LITERAL(type), (obj)->get_name().c_str()); \
+
-    if (!(obj)->get_icon().empty()) { \
+#define LOG_BUTTON(prefix, type, obj) log_button(TAG, prefix, LOG_STR_LITERAL(type), obj)
-      ESP_LOGCONFIG(TAG, "%s  Icon: '%s'", prefix, (obj)->get_icon().c_str()); \
-    } \
-  }
 
 #define SUB_BUTTON(name) \
  protected: \

esphome/components/camera/buffer.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include <cinttypes>
+#include <cstddef>
+
+namespace esphome::camera {
+
+/// Interface for a generic buffer that stores image data.
+class Buffer {
+ public:
+  /// Returns a pointer to the buffer's data.
+  virtual uint8_t *get_data_buffer() = 0;
+  /// Returns the length of the buffer in bytes.
+  virtual size_t get_data_length() = 0;
+  virtual ~Buffer() = default;
+};
+
+}  // namespace esphome::camera

esphome/components/camera/buffer_impl.cpp

@@ -0,0 +1,20 @@
+#include "buffer_impl.h"
+
+namespace esphome::camera {
+
+BufferImpl::BufferImpl(size_t size) {
+  this->data_ = this->allocator_.allocate(size);
+  this->size_ = size;
+}
+
+BufferImpl::BufferImpl(CameraImageSpec *spec) {
+  this->data_ = this->allocator_.allocate(spec->bytes_per_image());
+  this->size_ = spec->bytes_per_image();
+}
+
+BufferImpl::~BufferImpl() {
+  if (this->data_ != nullptr)
+    this->allocator_.deallocate(this->data_, this->size_);
+}
+
+}  // namespace esphome::camera

esphome/components/camera/buffer_impl.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include "buffer.h"
+#include "camera.h"
+
+namespace esphome::camera {
+
+/// Default implementation of Buffer Interface.
+/// Uses a RAMAllocator for memory reservation.
+class BufferImpl : public Buffer {
+ public:
+  explicit BufferImpl(size_t size);
+  explicit BufferImpl(CameraImageSpec *spec);
+  // -------- Buffer --------
+  uint8_t *get_data_buffer() override { return data_; }
+  size_t get_data_length() override { return size_; }
+  // ------------------------
+  ~BufferImpl() override;
+
+ protected:
+  RAMAllocator<uint8_t> allocator_;
+  size_t size_{};
+  uint8_t *data_{};
+};
+
+}  // namespace esphome::camera

esphome/components/camera/camera.h

@@ -15,6 +15,26 @@ namespace camera {
  */
 enum CameraRequester : uint8_t { IDLE, API_REQUESTER, WEB_REQUESTER };
 
+/// Enumeration of different pixel formats.
+enum PixelFormat : uint8_t {
+  PIXEL_FORMAT_GRAYSCALE = 0,  ///< 8-bit grayscale.
+  PIXEL_FORMAT_RGB565,         ///< 16-bit RGB (5-6-5).
+  PIXEL_FORMAT_BGR888,         ///< RGB pixel data in 8-bit format, stored as B, G, R (1 byte each).
+};
+
+/// Returns string name for a given PixelFormat.
+inline const char *to_string(PixelFormat format) {
+  switch (format) {
+    case PIXEL_FORMAT_GRAYSCALE:
+      return "PIXEL_FORMAT_GRAYSCALE";
+    case PIXEL_FORMAT_RGB565:
+      return "PIXEL_FORMAT_RGB565";
+    case PIXEL_FORMAT_BGR888:
+      return "PIXEL_FORMAT_BGR888";
+  }
+  return "PIXEL_FORMAT_UNKNOWN";
+}
+
 /** Abstract camera image base class.
  *  Encapsulates the JPEG encoded data and it is shared among
  *  all connected clients.
@@ -43,6 +63,29 @@ class CameraImageReader {
   virtual ~CameraImageReader() {}
 };
 
+/// Specification of a caputured camera image.
+/// This struct defines the format and size details for images captured
+/// or processed by a camera component.
+struct CameraImageSpec {
+  uint16_t width;
+  uint16_t height;
+  PixelFormat format;
+  size_t bytes_per_pixel() {
+    switch (format) {
+      case PIXEL_FORMAT_GRAYSCALE:
+        return 1;
+      case PIXEL_FORMAT_RGB565:
+        return 2;
+      case PIXEL_FORMAT_BGR888:
+        return 3;
+    }
+
+    return 1;
+  }
+  size_t bytes_per_row() { return bytes_per_pixel() * width; }
+  size_t bytes_per_image() { return bytes_per_pixel() * width * height; }
+};
+
 /** Abstract camera base class. Collaborates with API.
  *  1) API server starts and installs callback (add_image_callback)
  *     which is called by the camera when a new image is available.

esphome/components/camera/encoder.h

@@ -0,0 +1,69 @@
+#pragma once
+
+#include "buffer.h"
+#include "camera.h"
+
+namespace esphome::camera {
+
+/// Result codes from the encoder used to control camera pipeline flow.
+enum EncoderError : uint8_t {
+  ENCODER_ERROR_SUCCESS = 0,   ///< Encoding succeeded, continue pipeline normally.
+  ENCODER_ERROR_SKIP_FRAME,    ///< Skip current frame, try again on next frame.
+  ENCODER_ERROR_RETRY_FRAME,   ///< Retry current frame, after buffer growth or for incremental encoding.
+  ENCODER_ERROR_CONFIGURATION  ///< Fatal config error, shut down pipeline.
+};
+
+/// Converts EncoderError to string.
+inline const char *to_string(EncoderError error) {
+  switch (error) {
+    case ENCODER_ERROR_SUCCESS:
+      return "ENCODER_ERROR_SUCCESS";
+    case ENCODER_ERROR_SKIP_FRAME:
+      return "ENCODER_ERROR_SKIP_FRAME";
+    case ENCODER_ERROR_RETRY_FRAME:
+      return "ENCODER_ERROR_RETRY_FRAME";
+    case ENCODER_ERROR_CONFIGURATION:
+      return "ENCODER_ERROR_CONFIGURATION";
+  }
+  return "ENCODER_ERROR_INVALID";
+}
+
+/// Interface for an encoder buffer supporting resizing and variable-length data.
+class EncoderBuffer {
+ public:
+  ///  Sets logical buffer size, reallocates if needed.
+  ///  @param size Required size in bytes.
+  ///  @return true on success, false on allocation failure.
+  virtual bool set_buffer_size(size_t size) = 0;
+
+  /// Returns a pointer to the buffer data.
+  virtual uint8_t *get_data() const = 0;
+
+  /// Returns number of bytes currently used.
+  virtual size_t get_size() const = 0;
+
+  ///  Returns total allocated buffer size.
+  virtual size_t get_max_size() const = 0;
+
+  virtual ~EncoderBuffer() = default;
+};
+
+/// Interface for image encoders used in a camera pipeline.
+class Encoder {
+ public:
+  /// Encodes pixel data from a previous camera pipeline stage.
+  /// @param spec Specification of the input pixel data.
+  /// @param pixels Image pixels in RGB or grayscale format, as specified in @p spec.
+  /// @return EncoderError Indicating the result of the encoding operation.
+  virtual EncoderError encode_pixels(CameraImageSpec *spec, Buffer *pixels) = 0;
+
+  /// Returns the encoder's output buffer.
+  /// @return Pointer to an EncoderBuffer containing encoded data.
+  virtual EncoderBuffer *get_output_buffer() = 0;
+
+  ///  Prints the encoder's configuration to the log.
+  virtual void dump_config() = 0;
+  virtual ~Encoder() = default;
+};
+
+}  // namespace esphome::camera

esphome/components/camera_encoder/__init__.py

@@ -0,0 +1,62 @@
+import esphome.codegen as cg
+from esphome.components.esp32 import add_idf_component
+import esphome.config_validation as cv
+from esphome.const import CONF_BUFFER_SIZE, CONF_ID, CONF_TYPE
+from esphome.core import CORE
+from esphome.types import ConfigType
+
+CODEOWNERS = ["@DT-art1"]
+
+AUTO_LOAD = ["camera"]
+
+CONF_BUFFER_EXPAND_SIZE = "buffer_expand_size"
+CONF_ENCODER_BUFFER_ID = "encoder_buffer_id"
+CONF_QUALITY = "quality"
+
+ESP32_CAMERA_ENCODER = "esp32_camera"
+
+camera_ns = cg.esphome_ns.namespace("camera")
+camera_encoder_ns = cg.esphome_ns.namespace("camera_encoder")
+
+Encoder = camera_ns.class_("Encoder")
+EncoderBufferImpl = camera_encoder_ns.class_("EncoderBufferImpl")
+
+ESP32CameraJPEGEncoder = camera_encoder_ns.class_("ESP32CameraJPEGEncoder", Encoder)
+
+MAX_JPEG_BUFFER_SIZE_2MB = 2 * 1024 * 1024
+
+ESP32_CAMERA_ENCODER_SCHEMA = cv.Schema(
+    {
+        cv.GenerateID(): cv.declare_id(ESP32CameraJPEGEncoder),
+        cv.Optional(CONF_QUALITY, default=80): cv.int_range(1, 100),
+        cv.Optional(CONF_BUFFER_SIZE, default=4096): cv.int_range(
+            1024, MAX_JPEG_BUFFER_SIZE_2MB
+        ),
+        cv.Optional(CONF_BUFFER_EXPAND_SIZE, default=1024): cv.int_range(
+            0, MAX_JPEG_BUFFER_SIZE_2MB
+        ),
+        cv.GenerateID(CONF_ENCODER_BUFFER_ID): cv.declare_id(EncoderBufferImpl),
+    }
+)
+
+CONFIG_SCHEMA = cv.typed_schema(
+    {
+        ESP32_CAMERA_ENCODER: ESP32_CAMERA_ENCODER_SCHEMA,
+    },
+    default_type=ESP32_CAMERA_ENCODER,
+)
+
+
+async def to_code(config: ConfigType) -> None:
+    buffer = cg.new_Pvariable(config[CONF_ENCODER_BUFFER_ID])
+    cg.add(buffer.set_buffer_size(config[CONF_BUFFER_SIZE]))
+    if config[CONF_TYPE] == ESP32_CAMERA_ENCODER:
+        if CORE.using_esp_idf:
+            add_idf_component(name="espressif/esp32-camera", ref="2.1.0")
+        cg.add_build_flag("-DUSE_ESP32_CAMERA_JPEG_ENCODER")
+        var = cg.new_Pvariable(
+            config[CONF_ID],
+            config[CONF_QUALITY],
+            buffer,
+        )
+        cg.add(var.set_buffer_expand_size(config[CONF_BUFFER_EXPAND_SIZE]))

esphome/components/camera_encoder/encoder_buffer_impl.cpp

@@ -0,0 +1,23 @@
+#include "encoder_buffer_impl.h"
+
+namespace esphome::camera_encoder {
+
+bool EncoderBufferImpl::set_buffer_size(size_t size) {
+  if (size > this->capacity_) {
+    uint8_t *p = this->allocator_.reallocate(this->data_, size);
+    if (p == nullptr)
+      return false;
+
+    this->data_ = p;
+    this->capacity_ = size;
+  }
+  this->size_ = size;
+  return true;
+}
+
+EncoderBufferImpl::~EncoderBufferImpl() {
+  if (this->data_ != nullptr)
+    this->allocator_.deallocate(this->data_, this->capacity_);
+}
+
+}  // namespace esphome::camera_encoder

esphome/components/camera_encoder/encoder_buffer_impl.h

@@ -0,0 +1,25 @@
+#pragma once
+
+#include "esphome/components/camera/encoder.h"
+#include "esphome/core/helpers.h"
+
+namespace esphome::camera_encoder {
+
+class EncoderBufferImpl : public camera::EncoderBuffer {
+ public:
+  // --- EncoderBuffer  ---
+  bool set_buffer_size(size_t size) override;
+  uint8_t *get_data() const override { return this->data_; }
+  size_t get_size() const override { return this->size_; }
+  size_t get_max_size() const override { return this->capacity_; }
+  // ----------------------
+  ~EncoderBufferImpl() override;
+
+ protected:
+  RAMAllocator<uint8_t> allocator_;
+  size_t capacity_{};
+  size_t size_{};
+  uint8_t *data_{};
+};
+
+}  // namespace esphome::camera_encoder

esphome/components/camera_encoder/esp32_camera_jpeg_encoder.cpp

@@ -0,0 +1,82 @@
+#ifdef USE_ESP32_CAMERA_JPEG_ENCODER
+
+#include "esp32_camera_jpeg_encoder.h"
+
+namespace esphome::camera_encoder {
+
+static const char *const TAG = "camera_encoder";
+
+ESP32CameraJPEGEncoder::ESP32CameraJPEGEncoder(uint8_t quality, camera::EncoderBuffer *output) {
+  this->quality_ = quality;
+  this->output_ = output;
+}
+
+camera::EncoderError ESP32CameraJPEGEncoder::encode_pixels(camera::CameraImageSpec *spec, camera::Buffer *pixels) {
+  this->bytes_written_ = 0;
+  this->out_of_output_memory_ = false;
+  bool success = fmt2jpg_cb(pixels->get_data_buffer(), pixels->get_data_length(), spec->width, spec->height,
+                            to_internal_(spec->format), this->quality_, callback_, this);
+
+  if (!success)
+    return camera::ENCODER_ERROR_CONFIGURATION;
+
+  if (this->out_of_output_memory_) {
+    if (this->buffer_expand_size_ <= 0)
+      return camera::ENCODER_ERROR_SKIP_FRAME;
+
+    size_t current_size = this->output_->get_max_size();
+    size_t new_size = this->output_->get_max_size() + this->buffer_expand_size_;
+    if (!this->output_->set_buffer_size(new_size)) {
+      ESP_LOGE(TAG, "Failed to expand output buffer.");
+      this->buffer_expand_size_ = 0;
+      return camera::ENCODER_ERROR_SKIP_FRAME;
+    }
+
+    ESP_LOGD(TAG, "Output buffer expanded (%u -> %u).", current_size, this->output_->get_max_size());
+    return camera::ENCODER_ERROR_RETRY_FRAME;
+  }
+
+  this->output_->set_buffer_size(this->bytes_written_);
+  return camera::ENCODER_ERROR_SUCCESS;
+}
+
+void ESP32CameraJPEGEncoder::dump_config() {
+  ESP_LOGCONFIG(TAG,
+                "ESP32 Camera JPEG Encoder:\n"
+                "  Size: %zu\n"
+                "  Quality: %d\n"
+                "  Expand: %d\n",
+                this->output_->get_max_size(), this->quality_, this->buffer_expand_size_);
+}
+
+size_t ESP32CameraJPEGEncoder::callback_(void *arg, size_t index, const void *data, size_t len) {
+  ESP32CameraJPEGEncoder *that = reinterpret_cast<ESP32CameraJPEGEncoder *>(arg);
+  uint8_t *buffer = that->output_->get_data();
+  size_t buffer_length = that->output_->get_max_size();
+  if (index + len > buffer_length) {
+    that->out_of_output_memory_ = true;
+    return 0;
+  }
+
+  std::memcpy(&buffer[index], data, len);
+  that->bytes_written_ += len;
+  return len;
+}
+
+pixformat_t ESP32CameraJPEGEncoder::to_internal_(camera::PixelFormat format) {
+  switch (format) {
+    case camera::PIXEL_FORMAT_GRAYSCALE:
+      return PIXFORMAT_GRAYSCALE;
+    case camera::PIXEL_FORMAT_RGB565:
+      return PIXFORMAT_RGB565;
+    // Internal representation for RGB is in byte order: B, G, R
+    case camera::PIXEL_FORMAT_BGR888:
+      return PIXFORMAT_RGB888;
+  }
+
+  return PIXFORMAT_GRAYSCALE;
+}
+
+}  // namespace esphome::camera_encoder
+
+#endif

esphome/components/camera_encoder/esp32_camera_jpeg_encoder.h

@@ -0,0 +1,39 @@
+#pragma once
+
+#ifdef USE_ESP32_CAMERA_JPEG_ENCODER
+
+#include <esp_camera.h>
+
+#include "esphome/components/camera/encoder.h"
+
+namespace esphome::camera_encoder {
+
+/// Encoder that uses the software-based JPEG implementation from Espressif's esp32-camera component.
+class ESP32CameraJPEGEncoder : public camera::Encoder {
+ public:
+  /// Constructs a ESP32CameraJPEGEncoder instance.
+  /// @param quality Sets the quality of the encoded image (1-100).
+  /// @param output Pointer to preallocated output buffer.
+  ESP32CameraJPEGEncoder(uint8_t quality, camera::EncoderBuffer *output);
+  /// Sets the number of bytes to expand the output buffer on underflow during encoding.
+  /// @param buffer_expand_size Number of bytes to expand the buffer.
+  void set_buffer_expand_size(size_t buffer_expand_size) { this->buffer_expand_size_ = buffer_expand_size; }
+  // -------- Encoder --------
+  camera::EncoderError encode_pixels(camera::CameraImageSpec *spec, camera::Buffer *pixels) override;
+  camera::EncoderBuffer *get_output_buffer() override { return output_; }
+  void dump_config() override;
+  // -------------------------
+ protected:
+  static size_t callback_(void *arg, size_t index, const void *data, size_t len);
+  pixformat_t to_internal_(camera::PixelFormat format);
+
+  camera::EncoderBuffer *output_{};
+  size_t buffer_expand_size_{};
+  size_t bytes_written_{};
+  uint8_t quality_{};
+  bool out_of_output_memory_{};
+};
+
+}  // namespace esphome::camera_encoder
+
+#endif

esphome/components/captive_portal/__init__.py

@@ -10,7 +10,7 @@ from esphome.const import (
     PLATFORM_LN882X,
     PLATFORM_RTL87XX,
 )
-from esphome.core import CORE, coroutine_with_priority
+from esphome.core import CORE, CoroPriority, coroutine_with_priority
 
 AUTO_LOAD = ["web_server_base", "ota.web_server"]
 DEPENDENCIES = ["wifi"]
@@ -40,7 +40,7 @@ CONFIG_SCHEMA = cv.All(
 )
 
 
-@coroutine_with_priority(64.0)
+@coroutine_with_priority(CoroPriority.COMMUNICATION)
 async def to_code(config):
     paren = await cg.get_variable(config[CONF_WEB_SERVER_BASE_ID])
 

esphome/components/captive_portal/captive_index.h

@@ -7,103 +7,83 @@ namespace esphome {
 namespace captive_portal {
 
 const uint8_t INDEX_GZ[] PROGMEM = {
-    0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0xdd, 0x58, 0x6d, 0x6f, 0xdb, 0x38, 0x12, 0xfe, 0xde,
+    0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x95, 0x16, 0x6b, 0x8f, 0xdb, 0x36, 0xf2, 0x7b, 0x7e,
-    0x5f, 0x31, 0xa7, 0x36, 0x6b, 0x6b, 0x1b, 0x51, 0x22, 0xe5, 0xb7, 0xd8, 0x92, 0x16, 0x69, 0xae, 0x8b, 0x5d, 0xa0,
+    0x05, 0x8f, 0x49, 0xbb, 0x52, 0xb3, 0x7a, 0x7a, 0xed, 0x6c, 0x24, 0x51, 0x45, 0x9a, 0xbb, 0xa2, 0x05, 0x9a, 0x36,
-    0xdd, 0x2d, 0x90, 0x6c, 0xef, 0x43, 0x51, 0x20, 0xb4, 0x34, 0xb2, 0xd8, 0x48, 0xa4, 0x4e, 0xa4, 0x5f, 0x52, 0xc3,
+    0xc0, 0x6e, 0x73, 0x1f, 0x82, 0x00, 0x4b, 0x53, 0x23, 0x8b, 0x31, 0x45, 0xea, 0x48, 0xca, 0x8f, 0x18, 0xbe, 0xdf,
-    0xf7, 0xdb, 0x0f, 0x94, 0x6c, 0xc7, 0xe9, 0x35, 0x87, 0xeb, 0xe2, 0x0e, 0x87, 0xdd, 0x18, 0x21, 0x86, 0xe4, 0xcc,
+    0x7e, 0xa0, 0x24, 0x7b, 0x9d, 0x45, 0x73, 0xb8, 0xb3, 0x60, 0x61, 0x38, 0xef, 0x19, 0xcd, 0x83, 0xc5, 0xdf, 0x2a,
-    0x70, 0xe6, 0xf1, 0x0c, 0x67, 0xcc, 0xe8, 0x2f, 0x99, 0x4a, 0xcd, 0x7d, 0x8d, 0x50, 0x98, 0xaa, 0x4c, 0x22, 0x3b,
+    0xc5, 0xec, 0xbe, 0x03, 0xd4, 0xd8, 0x56, 0x94, 0x85, 0x7b, 0x23, 0x41, 0xe5, 0x8a, 0x80, 0x2c, 0x8b, 0x06, 0x68,
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+    0x55, 0x16, 0x2d, 0x58, 0x8a, 0x58, 0x43, 0xb5, 0x01, 0x4b, 0xfe, 0xbc, 0xff, 0x39, 0xb8, 0x2d, 0x0b, 0xc1, 0xe5,
-    0xfc, 0xdb, 0xcd, 0x8f, 0xde, 0x04, 0xfc, 0x24, 0x2a, 0x85, 0xbc, 0x83, 0x06, 0xcb, 0x58, 0xa4, 0x4a, 0x42, 0xd1,
+    0x1a, 0x69, 0x10, 0x84, 0x33, 0x25, 0x51, 0xa3, 0xa1, 0x26, 0x15, 0xb5, 0x34, 0xe3, 0x2d, 0x5d, 0xc1, 0x24, 0x22,
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+    0x69, 0x0b, 0x64, 0xc3, 0x61, 0xdb, 0x29, 0x6d, 0x11, 0x53, 0xd2, 0x82, 0xb4, 0x04, 0x6f, 0x79, 0x65, 0x1b, 0x52,
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+    0xc1, 0x86, 0x33, 0x08, 0x86, 0xc3, 0x35, 0x97, 0xdc, 0x72, 0x2a, 0x02, 0xc3, 0xa8, 0x00, 0x92, 0x5c, 0xf7, 0x06,
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+    0xf4, 0x70, 0xa0, 0x4b, 0x01, 0x44, 0x2a, 0x5c, 0x16, 0x86, 0x69, 0xde, 0x59, 0xe4, 0x5c, 0x25, 0xad, 0xaa, 0x7a,
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+    0x01, 0x65, 0x14, 0x51, 0x63, 0xc0, 0x9a, 0x88, 0xcb, 0x0a, 0x76, 0xe1, 0x32, 0x66, 0x2c, 0x86, 0xdb, 0xdb, 0xf0,
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+    0xb3, 0x79, 0x56, 0x29, 0xd6, 0xb7, 0x20, 0x6d, 0x28, 0x14, 0xa3, 0x96, 0x2b, 0x19, 0x1a, 0xa0, 0x9a, 0x35, 0x84,
-    0x95, 0x2e, 0x2b, 0x94, 0x86, 0x94, 0x2a, 0xe5, 0x46, 0x28, 0x49, 0x34, 0xf2, 0x26, 0x2d, 0xe2, 0x38, 0x76, 0x7e,
+    0x10, 0xfc, 0xa3, 0xa1, 0x1b, 0xc0, 0xdf, 0x7f, 0xef, 0x9d, 0x99, 0x56, 0x60, 0xff, 0x21, 0xc0, 0x81, 0xe6, 0xa7,
-    0xd0, 0x7c, 0x85, 0xce, 0x77, 0xdf, 0xf5, 0x8f, 0x4c, 0x0b, 0x34, 0xaf, 0x4b, 0xb4, 0xa4, 0x7e, 0x75, 0x7f, 0xc3,
+    0xfd, 0x3d, 0x5d, 0xfd, 0x4e, 0x5b, 0xf0, 0x30, 0x35, 0xbc, 0x02, 0xec, 0x7f, 0x8c, 0x3f, 0x85, 0xc6, 0xee, 0x05,
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+    0x84, 0x15, 0x37, 0x9d, 0xa0, 0x7b, 0x82, 0x97, 0x42, 0xb1, 0x35, 0xf6, 0xf3, 0xba, 0x97, 0xcc, 0x29, 0x47, 0xc6,
-    0xa1, 0xeb, 0x92, 0xdf, 0xc7, 0xce, 0xbc, 0x54, 0xe9, 0x9d, 0xe3, 0xce, 0xf2, 0xa5, 0x4c, 0xad, 0x72, 0xd0, 0x7d,
+    0x03, 0xff, 0x20, 0xc0, 0x22, 0x4b, 0xde, 0x51, 0xdb, 0x84, 0x2d, 0xdd, 0x79, 0x23, 0xc0, 0xa5, 0x97, 0xfe, 0xe0,
-    0x74, 0xb7, 0x25, 0x1a, 0x30, 0xf1, 0x5b, 0x6e, 0x0a, 0x52, 0xf1, 0x4d, 0xbf, 0x23, 0x84, 0xec, 0xb3, 0xef, 0xfb,
+    0xc1, 0xcb, 0x24, 0x8e, 0xfd, 0xeb, 0xe1, 0x15, 0xfb, 0x51, 0x12, 0xc7, 0xb9, 0x06, 0xdb, 0x6b, 0x89, 0xa8, 0xf7,
-    0xf8, 0x92, 0x06, 0x81, 0x7b, 0xde, 0x0e, 0x81, 0xeb, 0xd3, 0x20, 0x98, 0x35, 0x68, 0x96, 0x8d, 0x04, 0xde, 0xbf,
+    0x50, 0x74, 0xd4, 0x36, 0xa8, 0x22, 0xf8, 0x5d, 0x92, 0xa2, 0xe4, 0x75, 0x98, 0xce, 0x7f, 0x0b, 0x5f, 0xa1, 0x9b,
-    0x8d, 0x6a, 0x6e, 0x0a, 0xc8, 0x62, 0xa7, 0xa2, 0x8c, 0x04, 0xc1, 0x04, 0xe8, 0x05, 0x61, 0x43, 0x8f, 0x52, 0x12,
+    0x30, 0x9d, 0xb3, 0x57, 0xc1, 0x1c, 0x25, 0x37, 0xc1, 0x1c, 0xa5, 0x69, 0x38, 0x47, 0xf1, 0x17, 0x8c, 0x6a, 0x2e,
-    0x7a, 0x74, 0x98, 0x8e, 0xbd, 0x21, 0xd0, 0x81, 0x37, 0x04, 0xc6, 0xc8, 0x10, 0x82, 0xcf, 0x0e, 0xe4, 0xa2, 0x2c,
+    0x04, 0xc1, 0x52, 0x49, 0xc0, 0xc8, 0x58, 0xad, 0xd6, 0x40, 0x30, 0xeb, 0xb5, 0x06, 0x69, 0xdf, 0x2a, 0xa1, 0x34,
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+    0x8e, 0xca, 0x67, 0xff, 0x97, 0x42, 0xab, 0xa9, 0x34, 0xb5, 0xd2, 0x2d, 0xc1, 0x43, 0xf6, 0xbd, 0x17, 0x07, 0x7b,
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+    0xdd, 0xdd, 0xaf, 0x7f, 0x2f, 0x9d, 0x33, 0x8f, 0x72, 0x9d, 0x59, 0x8f, 0x62, 0x0e, 0x98, 0xa4, 0x16, 0x37, 0xe3,
-    0xb6, 0x43, 0x23, 0x18, 0x93, 0xc9, 0x05, 0xd0, 0x11, 0x09, 0xc7, 0x40, 0x19, 0x30, 0x4a, 0x86, 0x6f, 0x58, 0x48,
+    0xa5, 0xaa, 0xa3, 0xc6, 0x6c, 0x95, 0xae, 0xbe, 0xd2, 0xf1, 0x7e, 0x42, 0x8e, 0x7a, 0x86, 0xff, 0xd0, 0x2a, 0xe5,
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+    0x1d, 0xdd, 0x40, 0x11, 0x4d, 0x87, 0x22, 0x72, 0x0e, 0x8f, 0xf4, 0x66, 0xe2, 0x6b, 0x92, 0xf2, 0x8f, 0xfb, 0x37,
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+    0xe8, 0xcf, 0xae, 0xa2, 0x16, 0xc6, 0xb4, 0x0d, 0x51, 0xb5, 0x60, 0x1b, 0x55, 0x91, 0xf7, 0x7f, 0xdc, 0xdd, 0x9f,
-    0x37, 0x24, 0x14, 0x46, 0x24, 0x1c, 0xf1, 0x09, 0x19, 0x84, 0xd0, 0x0e, 0x1d, 0x1c, 0x63, 0xc2, 0x98, 0x47, 0x02,
+    0x23, 0xec, 0x07, 0x26, 0x04, 0x92, 0x8d, 0xd7, 0xbb, 0x5e, 0x58, 0xde, 0x51, 0x6d, 0x07, 0xb5, 0x81, 0x9b, 0x22,
-    0xfa, 0x26, 0x24, 0x6c, 0x0c, 0x63, 0x32, 0x18, 0x5c, 0xd2, 0x11, 0xb9, 0x18, 0x40, 0x37, 0x76, 0xf0, 0x52, 0x06,
+    0xa7, 0x18, 0x06, 0x7a, 0xcd, 0x05, 0x8c, 0x61, 0x8c, 0x82, 0x25, 0x3a, 0x79, 0x75, 0xb2, 0xf6, 0xc4, 0xaf, 0x68,
-    0xc3, 0xa7, 0x40, 0x63, 0x7f, 0x5e, 0xd0, 0x42, 0xc2, 0x28, 0x84, 0xe4, 0x62, 0xc2, 0x6d, 0x5f, 0xca, 0xa0, 0x1b,
+    0xfc, 0xda, 0xd1, 0xf8, 0xe9, 0xa3, 0xe1, 0xa6, 0xfb, 0x1f, 0x53, 0x58, 0x46, 0xb2, 0xf9, 0x0a, 0x00, 0x00};
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-    0xc9, 0x08, 0xda, 0xa1, 0x3b, 0x9b, 0x32, 0x98, 0x5c, 0x5d, 0xc0, 0x04, 0x46, 0x64, 0x34, 0x81, 0x0b, 0x18, 0x5a,
-    0x74, 0x2f, 0xc8, 0x64, 0xd0, 0x09, 0x79, 0x8c, 0x7c, 0x2b, 0x8c, 0x83, 0x3f, 0x30, 0x8c, 0x4f, 0xf9, 0xf4, 0x07,
-    0x76, 0xe9, 0xff, 0x71, 0x05, 0x45, 0x7e, 0xd7, 0x86, 0x45, 0x7e, 0xf7, 0x3c, 0x60, 0xbb, 0xa8, 0x24, 0xb2, 0xdd,
-    0x48, 0x12, 0x15, 0x14, 0x44, 0x16, 0x57, 0x3c, 0x4d, 0x4e, 0x5a, 0xfd, 0xc8, 0x2f, 0xe8, 0x61, 0xab, 0xa0, 0xc9,
-    0xa3, 0xc6, 0xbd, 0xdb, 0x6b, 0x2b, 0x7d, 0x72, 0x53, 0x20, 0xbc, 0xbe, 0x7e, 0x07, 0x6b, 0x51, 0x96, 0x20, 0xd5,
-    0x1a, 0x4c, 0x73, 0x0f, 0x46, 0xd9, 0x57, 0x03, 0x89, 0xa9, 0xb1, 0xa4, 0x29, 0x10, 0xf6, 0x7d, 0x04, 0x21, 0x24,
-    0x9a, 0x37, 0xc9, 0xbb, 0x12, 0xb9, 0x46, 0x58, 0x88, 0x15, 0x82, 0x30, 0xa0, 0x55, 0x85, 0x60, 0x84, 0x1d, 0x8e,
-    0x82, 0x2d, 0x5f, 0xe4, 0x77, 0x87, 0x74, 0x8d, 0xb2, 0xc8, 0x62, 0x89, 0x26, 0xd9, 0x77, 0xc4, 0x51, 0x11, 0x76,
-    0x56, 0x5d, 0xa3, 0x31, 0x42, 0x2e, 0xac, 0x55, 0x61, 0x12, 0xd9, 0x5f, 0xb7, 0xc0, 0xdb, 0xdf, 0x0c, 0xb1, 0xbf,
-    0x16, 0xb9, 0xb0, 0x6f, 0x06, 0x49, 0xd4, 0x76, 0x91, 0x56, 0x83, 0x6d, 0x64, 0xba, 0x07, 0x8e, 0x96, 0x2a, 0x51,
-    0x2e, 0x4c, 0x11, 0x87, 0x0c, 0xea, 0x92, 0xa7, 0x58, 0xa8, 0x32, 0xc3, 0x26, 0xbe, 0xbe, 0xfe, 0xf9, 0xaf, 0xf6,
-    0x35, 0xc4, 0x9a, 0x70, 0x94, 0xac, 0xf5, 0x5d, 0x27, 0x68, 0x89, 0xbd, 0xdc, 0x68, 0xd0, 0xbd, 0x6b, 0xd4, 0x5c,
-    0xeb, 0xb5, 0x6a, 0xb2, 0x47, 0x5a, 0xde, 0x1d, 0x16, 0xf7, 0x9a, 0xda, 0xff, 0xb6, 0x1f, 0xed, 0x84, 0xf4, 0x72,
-    0x5e, 0x09, 0x93, 0x5c, 0xf3, 0x15, 0x46, 0x7e, 0xb7, 0x91, 0x44, 0xbe, 0x75, 0xa0, 0xe3, 0x2d, 0xf6, 0x32, 0x05,
-    0x4d, 0x7e, 0xbd, 0xb9, 0x84, 0xdf, 0xea, 0x8c, 0x1b, 0xec, 0xb0, 0x6f, 0xbd, 0xac, 0xd0, 0x14, 0x2a, 0x8b, 0xdf,
-    0xfd, 0x7a, 0x7d, 0x73, 0xf4, 0x78, 0xd9, 0x32, 0x01, 0xca, 0xb4, 0x7b, 0x6f, 0x59, 0x96, 0x46, 0xd4, 0xbc, 0x31,
-    0xad, 0x5a, 0xcf, 0x66, 0xc7, 0xc1, 0xa3, 0x76, 0x3f, 0x17, 0x25, 0x76, 0x4e, 0xed, 0x05, 0xfd, 0x04, 0xbe, 0x66,
-    0xe3, 0xe1, 0xec, 0x2f, 0xac, 0xf4, 0xbb, 0x00, 0xf2, 0xbb, 0x68, 0xf2, 0xdb, 0xd7, 0xa8, 0x7f, 0x02, 0x14, 0xee,
-    0xbc, 0x64, 0x9d, 0x12, 0x00, 0x00};
 
 }  // namespace captive_portal
 }  // namespace esphome

esphome/components/captive_portal/captive_portal.cpp

@@ -11,17 +11,35 @@ namespace captive_portal {
 static const char *const TAG = "captive_portal";
 
 void CaptivePortal::handle_config(AsyncWebServerRequest *request) {
-  AsyncResponseStream *stream = request->beginResponseStream("application/json");
+  AsyncResponseStream *stream = request->beginResponseStream(F("application/json"));
-  stream->addHeader("cache-control", "public, max-age=0, must-revalidate");
+  stream->addHeader(F("cache-control"), F("public, max-age=0, must-revalidate"));
+#ifdef USE_ESP8266
+  stream->print(F("{\"mac\":\""));
+  stream->print(get_mac_address_pretty().c_str());
+  stream->print(F("\",\"name\":\""));
+  stream->print(App.get_name().c_str());
+  stream->print(F("\",\"aps\":[{}"));
+#else
   stream->printf(R"({"mac":"%s","name":"%s","aps":[{})", get_mac_address_pretty().c_str(), App.get_name().c_str());
+#endif
 
   for (auto &scan : wifi::global_wifi_component->get_scan_result()) {
     if (scan.get_is_hidden())
       continue;
 
       // Assumes no " in ssid, possible unicode isses?
+#ifdef USE_ESP8266
+    stream->print(F(",{\"ssid\":\""));
+    stream->print(scan.get_ssid().c_str());
+    stream->print(F("\",\"rssi\":"));
+    stream->print(scan.get_rssi());
+    stream->print(F(",\"lock\":"));
+    stream->print(scan.get_with_auth());
+    stream->print(F("}"));
+#else
     stream->printf(R"(,{"ssid":"%s","rssi":%d,"lock":%d})", scan.get_ssid().c_str(), scan.get_rssi(),
                    scan.get_with_auth());
+#endif
   }
   stream->print(F("]}"));
   request->send(stream);
@@ -34,7 +52,7 @@ void CaptivePortal::handle_wifisave(AsyncWebServerRequest *request) {
   ESP_LOGI(TAG, "  Password=" LOG_SECRET("'%s'"), psk.c_str());
   wifi::global_wifi_component->save_wifi_sta(ssid, psk);
   wifi::global_wifi_component->start_scanning();
-  request->redirect("/?save");
+  request->redirect(F("/?save"));
 }
 
 void CaptivePortal::setup() {
@@ -53,18 +71,23 @@ void CaptivePortal::start() {
   this->dns_server_ = make_unique<DNSServer>();
   this->dns_server_->setErrorReplyCode(DNSReplyCode::NoError);
   network::IPAddress ip = wifi::global_wifi_component->wifi_soft_ap_ip();
-  this->dns_server_->start(53, "*", ip);
+  this->dns_server_->start(53, F("*"), ip);
   // Re-enable loop() when DNS server is started
   this->enable_loop();
 #endif
 
   this->base_->get_server()->onNotFound([this](AsyncWebServerRequest *req) {
     if (!this->active_ || req->host().c_str() == wifi::global_wifi_component->wifi_soft_ap_ip().str()) {
-      req->send(404, "text/html", "File not found");
+      req->send(404, F("text/html"), F("File not found"));
       return;
     }
 
+#ifdef USE_ESP8266
+    String url = F("http://");
+    url += wifi::global_wifi_component->wifi_soft_ap_ip().str().c_str();
+#else
     auto url = "http://" + wifi::global_wifi_component->wifi_soft_ap_ip().str();
+#endif
     req->redirect(url.c_str());
   });
 
@@ -73,19 +96,19 @@ void CaptivePortal::start() {
 }
 
 void CaptivePortal::handleRequest(AsyncWebServerRequest *req) {
-  if (req->url() == "/") {
+  if (req->url() == F("/")) {
 #ifndef USE_ESP8266
-    auto *response = req->beginResponse(200, "text/html", INDEX_GZ, sizeof(INDEX_GZ));
+    auto *response = req->beginResponse(200, F("text/html"), INDEX_GZ, sizeof(INDEX_GZ));
 #else
-    auto *response = req->beginResponse_P(200, "text/html", INDEX_GZ, sizeof(INDEX_GZ));
+    auto *response = req->beginResponse_P(200, F("text/html"), INDEX_GZ, sizeof(INDEX_GZ));
 #endif
-    response->addHeader("Content-Encoding", "gzip");
+    response->addHeader(F("Content-Encoding"), F("gzip"));
     req->send(response);
     return;
-  } else if (req->url() == "/config.json") {
+  } else if (req->url() == F("/config.json")) {
     this->handle_config(req);
     return;
-  } else if (req->url() == "/wifisave") {
+  } else if (req->url() == F("/wifisave")) {
     this->handle_wifisave(req);
     return;
   }

esphome/components/captive_portal/captive_portal.h

@@ -45,11 +45,11 @@ class CaptivePortal : public AsyncWebHandler, public Component {
       return false;
 
     if (request->method() == HTTP_GET) {
-      if (request->url() == "/")
+      if (request->url() == F("/"))
         return true;
-      if (request->url() == "/config.json")
+      if (request->url() == F("/config.json"))
         return true;
-      if (request->url() == "/wifisave")
+      if (request->url() == F("/wifisave"))
         return true;
     }