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J. Nick Koston 6c8542026f Replace Mutex with atomic_flag spinlock for MULTI_ATOMICS path 
The atomics path only takes the lock during rollover (every ~49.7 days)
for a ~5 instruction critical section. A std::atomic_flag spinlock
(1 byte) replaces the full FreeRTOS Mutex (~80-100 bytes RAM) since
contention is near-zero. The full Mutex is kept only for the
MULTI_NO_ATOMICS path (BK72xx) which needs it for broader locking.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
2026-02-27 10:51:40 -10:00
.ai
[core] Soft deprecate heap-allocating string helpers to prevent fragmentation patterns (#13156)
2026-01-12 12:48:54 -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
Bump actions/download-artifact from 7.0.0 to 8.0.0 (#14327)
2026-02-27 14:43:10 -05:00
.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
Replace Mutex with atomic_flag spinlock for MULTI_ATOMICS path
2026-02-27 10:51:40 -10:00
script
[time] Eliminate libc timezone bloat (~9.5KB flash ESP32, ~2% RAM on ESP8266) (#13635)
2026-02-26 15:12:44 -10:00
tests
[esp32] Enable execute_from_psram for P4 (#14329)
2026-02-28 06:40:55 +11:00
.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
[rp2040] Update arduino-pico framework from 3.9.4 to 5.5.0 (#14328)
2026-02-26 15:17:52 -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
Bump ruff from 0.15.2 to 0.15.3 (#14323)
2026-02-26 19:32:53 +00:00
.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
[hdc302x] Add new component (#10160)
2026-02-23 12:01:23 -05:00
CONTRIBUTING.md
Update URLs (#12369)
2025-12-08 14:37:45 -05:00
Doxyfile
Bump version to 2026.3.0-dev
2026-02-12 23:04:19 +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
[rp2040] Update arduino-pico framework from 3.9.4 to 5.5.0 (#14328)
2026-02-26 15:17:52 -10:00
pyproject.toml
Allow Python 3.14 (#13945)
2026-02-11 22:11:48 -05:00
README.md
Update readme logo (#12294)
2025-12-05 08:48:04 -05:00
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 0.15.3 to 0.15.4 (#14357)
2026-02-27 14:42:20 -05:00
requirements.txt
Bump aioesphomeapi from 44.1.0 to 44.2.0 (#14324)
2026-02-26 19:31:47 +00:00
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

ESPHome Logo

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 263 MiB
Languages
C++ 64%
Python 35.6%
C 0.3%