This project use ESP-01 with Arduino framework to communicate with Nibe 1145 heatpump. ESP-01 interface the heatpump using RS485 interface intended for modbus converter. Data from heatpump is decoded and published using MQTT protocol.
- Support reading of cyclic data
- Support read of specific address
- Support writing specific address
The project uses Visual Code with Platform IO and Arduino platform.
Known limitations/bugs:
- 32 bit values are not coded/decoded correctly
- Published messages that are subscribed will be written back to heatpump.
Use at own risk