Install daikin-altherma-esp32

ESP32-S3 firmware bridging a Daikin Altherma heat pump to MQTT

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Latest version: v1.0.11; Oct 17
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Apache-2.0 ↗ Allowed Allowed No source distribution obligation Keep license, relevant notices and NOTICE; mark modifications. Includes patent grants and termination on patent litigation
BSD-2-Clause ↗ Allowed Allowed No source distribution obligation Keep copyright, conditions and disclaimers in source or binary documentation/materials
BSD-3-Clause ↗ Allowed Allowed No source distribution obligation BSD-2 terms, plus no use of copyright holder/contributor names for endorsement without permission
ISC ↗ Allowed Allowed No source distribution obligation Keep copyright and permission notices in all copies
GPL-2.0 ↗ Allowed Allowed under GPL terms Provide corresponding source for the program/derivatives when distributing Distribute under GPL; keep copyright, license and change notices. Mere aggregation is excluded
GPL-3.0 ↗ Allowed Allowed under GPL terms Provide corresponding source for the program/derivatives when distributing Distribute under GPL; retain notices and mark modifications. Patent terms; provide modified-version installation information for covered consumer products
LGPL-2.1 ↗ Allowed Allowed under LGPL terms Provide source for the library/modifications when distributing the library Apps may link under other licenses; allow library replacement/relinking and reverse engineering to debug modifications
LGPL-3.0 ↗ Allowed Allowed under LGPL terms Provide source for the library/modifications when distributing the library Apps may link under other licenses; ensure replacement, relinking and reverse engineering for debugging modifications; provide installation information for covered products
MPL-2.0 ↗ Allowed Allowed under MPL terms Provide source for MPL-covered files and modifications when distributing Retain MPL and notices at file level; separate files without MPL code may use other licenses
AGPL-3.0 ↗ Allowed Allowed under AGPL terms Provide corresponding source when distributing; offer remote users of modified versions free source access Distribution terms similar to GPL-3.0, plus source-access instructions for network users of modified programs
Unlicense ↗ Allowed Allowed No source distribution obligation Dedicate copyright to the public domain; check the original and limits permitted by law
CC0-1.0 ↗ Allowed Allowed No source distribution obligation Waive copyright and related rights, with fallback permission if ineffective; excludes patents and trademarks
For GPL/LGPL/AGPL, -only permits that version only; -or-later allows that or a later version. Do not infer later-version permission from a label without a version and suffix. Source obligations apply to recipients/users under the terms and do not always require publishing to the entire internet.
GitHub license detection and display guide ↗; GitHub auto-detection · Previous observation · Collected Oct 28
Listed on nomorevibe: Oct 11; Repository created August 2026

Languages

C++ 46.4%
JavaScript 33.9%
Python 11%
Shell and others 8.7%

Updates6 in the last 30 days

All

Oct 17v1.0.11GitHub release ↗
Oct 17v1.0.10GitHub release ↗
Oct 13v1.0.9GitHub release ↗

Install daikin-altherma-esp32

ESP32-S3 firmware bridging a Daikin Altherma heat pump to MQTT

Translation pending

LifestyleC++ · JavaScriptGitHub @0BuOnlineOwner unconfirmed

Visit project GitHub

Have you tried it? One tap is enough. No sign-in needed.

Availability: Online; 30-day uptime 100%
Latest code update: Oct 26; Active repository
Latest version: v1.0.11; Oct 17
Contributors: 1; Forks 0
License: License information
This summarizes common license conditions. Check the repository LICENSE, per-file notices, and additional terms for actual conditions.
Information shown for this project
GitHub auto-detection · main repository license
MIT
Provided license information ↗
Repository observations do not verify all per-file terms, multiple licenses, or dependencies.
Information at the observation time · Last successful collection Oct 28, 09:45 (Korea time)
Check LICENSE in the repository ↗
Common license comparison
The listed licenses allow commercial use when their conditions are met. Check originals for multiple, custom, or unidentified licenses. Scroll the table horizontally on narrow screens.
Commercial use, modification/redistribution, source obligations, and key conditions of common licenses. Names link to official texts.
License · original Commercial use Modification / redistribution Source obligations Key conditions
MIT ↗ Allowed Allowed No source distribution obligation Keep copyright and permission notices in copies/substantial portions
Apache-2.0 ↗ Allowed Allowed No source distribution obligation Keep license, relevant notices and NOTICE; mark modifications. Includes patent grants and termination on patent litigation
BSD-2-Clause ↗ Allowed Allowed No source distribution obligation Keep copyright, conditions and disclaimers in source or binary documentation/materials
BSD-3-Clause ↗ Allowed Allowed No source distribution obligation BSD-2 terms, plus no use of copyright holder/contributor names for endorsement without permission
ISC ↗ Allowed Allowed No source distribution obligation Keep copyright and permission notices in all copies
GPL-2.0 ↗ Allowed Allowed under GPL terms Provide corresponding source for the program/derivatives when distributing Distribute under GPL; keep copyright, license and change notices. Mere aggregation is excluded
GPL-3.0 ↗ Allowed Allowed under GPL terms Provide corresponding source for the program/derivatives when distributing Distribute under GPL; retain notices and mark modifications. Patent terms; provide modified-version installation information for covered consumer products
LGPL-2.1 ↗ Allowed Allowed under LGPL terms Provide source for the library/modifications when distributing the library Apps may link under other licenses; allow library replacement/relinking and reverse engineering to debug modifications
LGPL-3.0 ↗ Allowed Allowed under LGPL terms Provide source for the library/modifications when distributing the library Apps may link under other licenses; ensure replacement, relinking and reverse engineering for debugging modifications; provide installation information for covered products
MPL-2.0 ↗ Allowed Allowed under MPL terms Provide source for MPL-covered files and modifications when distributing Retain MPL and notices at file level; separate files without MPL code may use other licenses
AGPL-3.0 ↗ Allowed Allowed under AGPL terms Provide corresponding source when distributing; offer remote users of modified versions free source access Distribution terms similar to GPL-3.0, plus source-access instructions for network users of modified programs
Unlicense ↗ Allowed Allowed No source distribution obligation Dedicate copyright to the public domain; check the original and limits permitted by law
CC0-1.0 ↗ Allowed Allowed No source distribution obligation Waive copyright and related rights, with fallback permission if ineffective; excludes patents and trademarks
For GPL/LGPL/AGPL, -only permits that version only; -or-later allows that or a later version. Do not infer later-version permission from a label without a version and suffix. Source obligations apply to recipients/users under the terms and do not always require publishing to the entire internet.
GitHub license detection and display guide ↗; GitHub auto-detection · Previous observation · Collected Oct 28
Listed on nomorevibe: Oct 11; Repository created August 2026

Languages

C++ 46.4%
JavaScript 33.9%
Python 11%
Shell and others 8.7%

Updates6 in the last 30 days

All

Oct 17v1.0.11GitHub release ↗
Oct 17v1.0.10GitHub release ↗
Oct 13v1.0.9GitHub release ↗

README

daikin-altherma-esp32

ESP-IDF firmware for ESP32-S3 boards that reads a Daikin Altherma heat pump through its X10A service port. View live readings in the local web UI and publish them to Home Assistant through MQTT. An optional HomeHub connection provides a separate read-only Modbus source.

Requirements

A Daikin Altherma with an X10A header.
A supported ESP32-S3 board with at least 8 MB flash.
An X10A cable: JST-EH 2.5 mm, 5-pin connector, two signal wires and common ground.
USB power and a browser supporting Web Serial for installation.

Setup

Choose your board and follow the safe wiring guide.
Install with the web installer.
Join daikin-altherma-esp32-setup, then enter your home WiFi at http://192.168.4.1.
Rejoin your home network and open http://daikin-altherma-esp32.local.
Set your board under Settings → ESP32 → Hardware and the wired RX/TX pins under Settings → Protocol. Set the broker under Settings → Connections → MQTT if needed.

The setup guide covers each step and how to check that it worked.

UI

View live values, operating states, local history and optional plant diagnostics; unestablished readings appear as —.

Documentation

Documentation index · Home Assistant · Report a bug · Contributing

Scope & credits

The firmware reads the heat pump; it does not control it. Keep the unauthenticated HTTP API on a trusted LAN (security model).

MIT. Protocol and value definitions derived from ESPAltherma (MIT); see third-party notices. No warranty; not affiliated with Daikin.

Read the full README ↗

README

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ESP-IDF firmware: reads a Daikin Altherma over the X10A port (UART 9600 8E1, protocol I/S) and publishes all values to MQTT. Runtime config + OTA via an embedded web UI. • A Daikin Altherma with an X10A header. • An ESP32-S3 board with ≥8 MB flash. • A JST-EH 2.5 mm 5-pin connector to reach the X10A header. • A browser with Web Serial to flash. 1. Flash: web installer 2. Join AP daikin-altherma-esp32-setup 3. Configure at http://daikin-altherma-esp32.local Breaker OFF. Three wires reach the heat pump: the two signals and ground.

Read the full README ↗

Install daikin-altherma-esp32

License information

Information shown for this project

Common license comparison

Languages

Updates6 in the last 30 days

Install daikin-altherma-esp32

License information

Information shown for this project

Common license comparison

Languages

Updates6 in the last 30 days

Comments

Introduction

README

daikin-altherma-esp32

Requirements

Setup

UI

Documentation

Scope & credits

README

README

daikin-altherma-esp32

Requirements

Setup

UI

Documentation

Scope & credits

Commercial use, modification/redistribution, source obligations, and key conditions of common licenses. Names link to official texts.
License · original	Commercial use	Modification / redistribution	Source obligations	Key conditions
MIT ↗	Allowed	Allowed	No source distribution obligation	Keep copyright and permission notices in copies/substantial portions
Apache-2.0 ↗	Allowed	Allowed	No source distribution obligation	Keep license, relevant notices and NOTICE; mark modifications. Includes patent grants and termination on patent litigation
BSD-2-Clause ↗	Allowed	Allowed	No source distribution obligation	Keep copyright, conditions and disclaimers in source or binary documentation/materials
BSD-3-Clause ↗	Allowed	Allowed	No source distribution obligation	BSD-2 terms, plus no use of copyright holder/contributor names for endorsement without permission
ISC ↗	Allowed	Allowed	No source distribution obligation	Keep copyright and permission notices in all copies
GPL-2.0 ↗	Allowed	Allowed under GPL terms	Provide corresponding source for the program/derivatives when distributing	Distribute under GPL; keep copyright, license and change notices. Mere aggregation is excluded
GPL-3.0 ↗	Allowed	Allowed under GPL terms	Provide corresponding source for the program/derivatives when distributing	Distribute under GPL; retain notices and mark modifications. Patent terms; provide modified-version installation information for covered consumer products
LGPL-2.1 ↗	Allowed	Allowed under LGPL terms	Provide source for the library/modifications when distributing the library	Apps may link under other licenses; allow library replacement/relinking and reverse engineering to debug modifications
LGPL-3.0 ↗	Allowed	Allowed under LGPL terms	Provide source for the library/modifications when distributing the library	Apps may link under other licenses; ensure replacement, relinking and reverse engineering for debugging modifications; provide installation information for covered products
MPL-2.0 ↗	Allowed	Allowed under MPL terms	Provide source for MPL-covered files and modifications when distributing	Retain MPL and notices at file level; separate files without MPL code may use other licenses
AGPL-3.0 ↗	Allowed	Allowed under AGPL terms	Provide corresponding source when distributing; offer remote users of modified versions free source access	Distribution terms similar to GPL-3.0, plus source-access instructions for network users of modified programs
Unlicense ↗	Allowed	Allowed	No source distribution obligation	Dedicate copyright to the public domain; check the original and limits permitted by law
CC0-1.0 ↗	Allowed	Allowed	No source distribution obligation	Waive copyright and related rights, with fallback permission if ineffective; excludes patents and trademarks

Commercial use, modification/redistribution, source obligations, and key conditions of common licenses. Names link to official texts.
License · original	Commercial use	Modification / redistribution	Source obligations	Key conditions
MIT ↗	Allowed	Allowed	No source distribution obligation	Keep copyright and permission notices in copies/substantial portions
Apache-2.0 ↗	Allowed	Allowed	No source distribution obligation	Keep license, relevant notices and NOTICE; mark modifications. Includes patent grants and termination on patent litigation
BSD-2-Clause ↗	Allowed	Allowed	No source distribution obligation	Keep copyright, conditions and disclaimers in source or binary documentation/materials
BSD-3-Clause ↗	Allowed	Allowed	No source distribution obligation	BSD-2 terms, plus no use of copyright holder/contributor names for endorsement without permission
ISC ↗	Allowed	Allowed	No source distribution obligation	Keep copyright and permission notices in all copies
GPL-2.0 ↗	Allowed	Allowed under GPL terms	Provide corresponding source for the program/derivatives when distributing	Distribute under GPL; keep copyright, license and change notices. Mere aggregation is excluded
GPL-3.0 ↗	Allowed	Allowed under GPL terms	Provide corresponding source for the program/derivatives when distributing	Distribute under GPL; retain notices and mark modifications. Patent terms; provide modified-version installation information for covered consumer products
LGPL-2.1 ↗	Allowed	Allowed under LGPL terms	Provide source for the library/modifications when distributing the library	Apps may link under other licenses; allow library replacement/relinking and reverse engineering to debug modifications
LGPL-3.0 ↗	Allowed	Allowed under LGPL terms	Provide source for the library/modifications when distributing the library	Apps may link under other licenses; ensure replacement, relinking and reverse engineering for debugging modifications; provide installation information for covered products
MPL-2.0 ↗	Allowed	Allowed under MPL terms	Provide source for MPL-covered files and modifications when distributing	Retain MPL and notices at file level; separate files without MPL code may use other licenses
AGPL-3.0 ↗	Allowed	Allowed under AGPL terms	Provide corresponding source when distributing; offer remote users of modified versions free source access	Distribution terms similar to GPL-3.0, plus source-access instructions for network users of modified programs
Unlicense ↗	Allowed	Allowed	No source distribution obligation	Dedicate copyright to the public domain; check the original and limits permitted by law
CC0-1.0 ↗	Allowed	Allowed	No source distribution obligation	Waive copyright and related rights, with fallback permission if ineffective; excludes patents and trademarks

Install daikin-altherma-esp32

Languages

Updates6 in the last 30 days

Trending in Lifestyle

Install daikin-altherma-esp32

Languages

Updates6 in the last 30 days

Trending in Lifestyle

Comments

Introduction

README

daikin-altherma-esp32

Requirements

Setup

UI

Documentation

Scope & credits

README

README

daikin-altherma-esp32

Requirements

Setup

UI

Documentation

Scope & credits