diematic-to-mqtt

Introduction

Create an Homie device from a connected Diematic boiler from De Dietrich.

This has only been tested with a GTU C 123 FF

Published properties

• Burner

  • Total start count
  • Total operating hours
  • Total fuel consumption

• Circuit a, b, c

  • Ambient temperature
  • Day set point temperature
  • Night set point temperature
  • Anti freeze set point temperature
  • Derogation
  • Sensor influence
  • Start temperature

• Configuration

  • Firmware version
  • Year
  • Month
  • Day
  • Day of week
  • Hour
  • Minute

• Domestic hot water

  • Temperature

• Sensors

  • External temperature
  • Heater

Usage

• Check homie-python.json for MQTT/Homie device configuration
• Check serial por in DiematicToMqttWorker
• Check gal per hour in DiematicBurner
• Launch with 'python DiematicToMqtt.py'
• Enjoy your boiler in MQTT or maybe OpenHAB

To-Do

• Publish more properties: Registers mapping table
• Allow two way communication?
• Add some settings
  • serial port in DiematicToMqttWorker
  • gal per hour - depending on the boiler nozzle - in DiematicBurner

More

• Homie
• homie-python
• minimalmodbus
• OpenHAB