ESPAltherma is a solution to monitor Daikin Altherma / ROTEX / HOVAL Belaria heat pump activity using just Arduino on an ESP32 or ESP8266 Microcontroller.
If this project has any value for you, please consider buying me a 🍺 or even better sponsoring ESPAltherma!. I don't do this for money but it feels good to get some support! Thanks :)
Features- Connects with the serial port of Altherma on port X10A.
- Needs just an ESP32, no need for extra hardware. ESP8266 is also supported.
- Queries the Altherma for selected values at defined interval.
- Converts and formalizes all values in a JSON message sent over MQTT.
- Easily integrates with Home Assistant's MQTT auto-discovery.
- Supports update OverTheAir
- Log messages in Serial + MQTT + Screen (m5StickC)
- Optional: can control (on/off) your heat pump.
- A Daikin Altherma or Daikin Altherma based heat pump (ROTEX, HOVAL Belaria...)
- An ESP32 or ESP8266 I recommend an ESP32, more precisely the M5StickC, it has an integrated display, a magnet, fits well next to the board and is properly isolated. But any ESP32 should work. A support is added for esp8266.
- 5 pins JST EH 2.5mm connector (or 4 Dupont wires M-F)
- Platformio
That's all!
See all detailed instruction on https://github.com/raomin/ESPAltherma
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