GitHub - budulinek/arduino-altherma-controller: 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
![Daikin P1P2 comms and adding Wifi + Voice control to a 20year old ducted Air Conditioner - Share your Projects! - Home Assistant Community Daikin P1P2 comms and adding Wifi + Voice control to a 20year old ducted Air Conditioner - Share your Projects! - Home Assistant Community](https://community-assets.home-assistant.io/original/4X/d/1/3/d133d807c07c59c836d97f8be537a984aafc0952.jpeg)