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J. Nick Koston f0622b7624 [api] Add max_data_length = 63 for unit_of_measurement fields 
Add UNIT_OF_MEASUREMENT_MAX_LENGTH = 63 constant in core/config.py
and enforce it in sensor and number component validators.

Annotate unit_of_measurement proto fields with (max_data_length) = 63
so the codegen emits constant-size length varint calculations.
2026-04-03 14:10:25 -10:00
.ai
[ai] Add automation, callback manager, and test grouping docs (#15243)
2026-03-29 12:02:47 -10:00
.claude/skills/pr-workflow
Add Claude Code PR workflow skill (#13271)
2026-01-16 10:24:28 -10:00
.devcontainer
Updates for development environment (#8801)
2025-05-22 13:24:34 +12:00
.github
[ci] Fix deprecated-component matcher (#15417)
2026-04-03 08:01:04 -04:00
.vscode
proto generation updates (#4653)
2023-06-12 17:00:34 +12:00
docker
[docker] Suppress git detached HEAD advice (#13962)
2026-02-12 16:12:17 -05:00
esphome
[api] Add max_data_length = 63 for unit_of_measurement fields
2026-04-03 14:10:25 -10:00
script
[api] Rename encode_raw_short_string to encode_short_string
2026-04-03 14:01:14 -10:00
tests
[benchmarks] Add host platform benchmarks for text_sensor and button (#15407)
2026-04-03 08:27:55 -10:00
.clang-format
Configure clang-format for consistent pointer alignment (#1890)
2021-06-10 12:55:20 +02:00
.clang-tidy
[esp32] Use pioarduino + IDF 5.1.5 as default for IDF builds (#7706)
2024-12-05 02:39:30 -06:00
.clang-tidy.hash
[wireguard] bump esp_wireguard to 0.4.4 for mbedtls 4.0+ compatibility (#15104)
2026-03-22 23:03:19 -10:00
.coveragerc
[ci] Add automated memory impact analysis for pull requests (#11242)
2025-10-20 07:43:38 +13:00
.dockerignore
[docker] Use new base container image (#8582)
2025-04-28 11:14:50 +12:00
.editorconfig
YAML linting (#3779)
2022-09-06 15:48:01 +12:00
.flake8
[core] Migrate to pyproject.toml (#6737)
2024-05-16 13:19:37 +12:00
.gitattributes
Add transparency support to all image types (#4600)
2023-05-22 08:03:21 +12:00
.gitignore
Add nix files to gitignore (#12604)
2025-12-21 09:26:03 -05:00
.pre-commit-config.yaml
[ci] Run ci-custom.py as a pre-commit check (#15411)
2026-04-03 12:54:44 +11:00
.yamllint
Disable truthy yamllint rule (#6442)
2024-03-28 10:20:51 +13:00
CLAUDE.md
Add some AI instructions (#9606)
2025-07-17 22:40:28 +12:00
CODE_OF_CONDUCT.md
Update emails from nabucasa to OHF (#8508)
2025-04-03 11:08:46 +13:00
CODEOWNERS
[dsmr] Allow setting MBUS id for thermal sensors in DSMR component (#7519)
2026-04-02 10:06:49 -10:00
CONTRIBUTING.md
Update URLs (#12369)
2025-12-08 14:37:45 -05:00
Doxyfile
Bump version to 2026.4.0-dev
2026-03-12 07:34:53 +13:00
GEMINI.md
Add some AI instructions (#9606)
2025-07-17 22:40:28 +12:00
LICENSE
🏗 Merge C++ into python codebase (#504)
2019-04-17 12:06:00 +02:00
MANIFEST.in
[sdist] Include yaml files in components in source distribution package
2026-01-01 08:49:43 +11:00
netlify.toml
[netlify] Pin python version (#11244)
2025-10-15 12:37:27 +13:00
platformio.ini
[wireguard] bump esp_wireguard to 0.4.4 for mbedtls 4.0+ compatibility (#15104)
2026-03-22 23:03:19 -10:00
pyproject.toml
Bump setuptools from 82.0.0 to 82.0.1 (#14665)
2026-03-09 20:44:27 +00:00
README.md
[ci] Add CodSpeed badge to README (#14901)
2026-03-17 13:48:21 -10:00
requirements_dev.txt
Bump yamllint from 1.37.1 to 1.38.0 (#13192)
2026-01-13 09:36:58 -10:00
requirements_test.txt
Bump ruff from 0.15.8 to 0.15.9 (#15385)
2026-04-02 19:28:30 +00:00
requirements.txt
Bump click from 8.3.1 to 8.3.2 (#15421)
2026-04-03 09:42:37 -10:00
sdkconfig.defaults
[esp32] Remove Arduino-specific code from core.cpp (#12501)
2025-12-16 20:06:12 -05:00

README.md

ESPHome Discord Chat GitHub release CodSpeed

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Documentation -- Issues -- Feature requests

ESPHome - A project from the Open Home Foundation

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Description
ESPHome is a system to control your ESP8266/ESP32 by simple yet powerful configuration files and control them remotely through Home Automation systems.
esp32esp8266hacktoberfesthome-assistanthome-automationiotmqttplatformiopythonyaml
Readme Multiple Licenses 545 MiB
Languages
C++ 60.1%
Python 39.3%
C 0.3%
JavaScript 0.2%