arnoldniessen is making CO2 sensors and Daikin P1/P2-MQTT interfaces - Buymeacoffee
AC ControlAir pour Daikin P1P2 | Loxone Shop
Daikin Kabel P1/P2-Kommunikation Ultra für Top Grade Daikin Altherma 3 H HT · 5740141 · Zubehör · heizung-billiger.de
Turn ON/OFF a Daikin heat pump - Hardware - Home Assistant Community
AC Control Air pour Daikin P1P2
iZonepedia
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