ESPHome OpenTherm

This is an example of a integration with a OpenTherm boiler using ESPHome and the Ihor Melnyk, the DIYLESS or the TheHogNL OpenTherm Adapter

Installation

• Copy the content of this repository to your ESPHome folder
• Make sure the pin numbers are right, check the file opentherm_component.h in the esphome-opentherm folder.
• Edit the opentherm.yaml file:
  • Make sure the board and device settings are correct for your device
  • Set the sensor entity_id with the external temperature sensor's name from Home Assistant. (The ESPHome sensor name is temperature_sensor).
• Flash the ESP and configure in Home Assistant. It should be auto-discovered by the ESPHome Integration.

Additional info

I am working in a new version of this integration, completely rewriting it as an external component. You can see the progress in this branch

I have pending to write a detailed documentation, I promise to do it for the new version. Until then you have lot of info in this issue, thanks to @foltymat