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J. Nick Koston 6423f9832f [esp32] Add sram1_as_iram option for +40KB IRAM on original ESP32 
Add a new `sram1_as_iram` option under `esp32 > framework > advanced`
that enables CONFIG_ESP_SYSTEM_ESP32_SRAM1_REGION_AS_IRAM, reclaiming
40KB of SRAM1 memory as additional IRAM on the original ESP32.

This requires a bootloader from ESP-IDF v5.1 or later. USB flashing
updates the bootloader automatically, but OTA does not. At boot,
ESPHome now detects the bootloader version and suggests enabling
this option when the bootloader is compatible.
2026-03-16 15:15:42 -10:00
.ai
[ai] Add docs note about keeping component index pages in sync (#14465)
2026-03-04 15:46:40 -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/create-github-app-token from 2.2.1 to 3.0.0 (#14868)
2026-03-16 09:57:33 -10:00
.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
[esp32] Add sram1_as_iram option for +40KB IRAM on original ESP32
2026-03-16 15:15:42 -10:00
script
[ci] Support URL and version extras in generate-esp32-boards.py (#14828)
2026-03-15 14:58:01 -04:00
tests
[ethernet] Add RP2040 W5500 Ethernet support (#14820)
2026-03-16 18:26:06 +00:00
.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
[runtime_image] Update jpegdec lib version (#14726)
2026-03-12 10:15:20 -04:00
.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 0.15.5 to 0.15.6 (#14774)
2026-03-13 19:35:10 +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
[dew_point] Add dew_point sensor component (#14441)
2026-03-10 17:17:13 -04:00
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
[runtime_image] Update jpegdec lib version (#14726)
2026-03-12 10:15:20 -04:00
pyproject.toml
Bump setuptools from 82.0.0 to 82.0.1 (#14665)
2026-03-09 20:44:27 +00:00
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 0.15.5 to 0.15.6 (#14774)
2026-03-13 19:35:10 +00:00
requirements.txt
Bump aioesphomeapi from 44.5.1 to 44.5.2 (#14849)
2026-03-16 05:43:38 +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 546 MiB
Languages
C++ 60.1%
Python 39.3%
C 0.3%
JavaScript 0.2%