NibeMqttGateway

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