Hi,
Just wanted to share my heating solution.
It is based on the opentherm hardware from IhorMelnyk, but i built a custom firmware for it: akamming/esp_domoticz_opentherm_handler: esp_opentherm Handler on esp for domoticz
Originally it was for domoticz, So there is still a lot of domoticz in the text. It still works for domoticz, but since i switched from Domoticz to HASS, i now optimized it for HASS and allows me to creat dashboards like this:
Requirements are
- This hardware connected to your boiler. OpenTherm Thermostat - Hobby Projects
- Your room temperature to be available in MQTT (the github links describes a sample automation on how to export a sensor to MQTT in case your room temp is not yet available in MQTT)
- If you want to use the weather dependent mode: An external outside temp sensor needs to be attached to the boiler according to the installation manual of the boiler
- and ofcourse some basic arduino/esp8266 knowledge to compile and upload the firmware