Monitor your Daikin Altherma / ROTEX heat pump with ESP32

Home Assistant Integration specific for BRP069A78 Heat Pump Model, via Daikin App Onecta. Users have good experience also for BRP069A62 and BRP069A61 (but not tested directly).

Daikin Altherma custom component for home assistant

Arduino-based controller for Daikin Altherma heat pumps. The controller connect to the Altherma heat pump via P1/P2 bus, has a built-in webserver for configuration (of the controller itself). Integration to Loxone home automation system via UDP protocol, allows you to monitor and control your Altherma heat pump.

Home Assistant Integration for the DAIKIN EKRHH home hub (support Altherma 3 and Air2Air units) and direct support for Altherma 4 (testing) via modbus

ESPHome component for monitoring Daikin Altherma heat pumps via X10A

Simple integration of CAN bus based heat pumps manufactured by Daikin (e.g. Altherma 3 ECH2O) and ROTEX into your smart home via MQTT. Including Home Assistant auto discovery. No cloud necessary.

Daikin Altherma `NHY2KOMB-A / EJHA-AV3` circulation pump limiter (Arduino)

Add-ons for openHAB Daikin Onecta (cloud controller)

C library port which can talk to daikin altherma via LAN adapter BRP069A61 or BRP069A62

C# library port which can talk to daikin altherma via LAN adapter BRP069A61 or BRP069A62

Home Assistant custom integration for the Daikin Home Hub EKRHH Modbus device for use with Altherma heatpump. // Daikin HomeHub HomeAssistant Integration für Altherma 3 R H MT M und ggf andere Wärmepumpen.

LP-based home-energy planner. Optimises a Fox ESS battery + Daikin Altherma heat pump against Octopus Agile half-hourly tariffs via a PuLP MILP solver — with closed-loop replay, scenario robustness, and an MCP tool surface for OpenClaw / Claude.