These are drop-in files for ESPHome to make it easy to start controlling your OpenTherm HVAC system from Home Assistant.
- This replaces expensive Tado/Nest thermostats for only $20-$25 in hardware costs. No proprietary clouds and vendors!
- You get full control over your HVAC system in Home Assistant with ESPHome. All the settings, all the graphs.
- Save energy with full control over your HVAC system. Tweak temperatures, create power saving modes.
This repo was inspired by the work of @arthurrump who created the esphome-opentherm project.
- HVAC system that supports OpenTherm
- WeMos/LOLIN D1 mini or WeMos S2 MINI
- DIYless Opentherm Master Shield
- Thermometer that is supported by Home Assistant.
- At least 1 decimal accuracy
- High update frequency (<1 min)
- I recommend the Xiaomi Mijia using this firmware.
- Remeha Avanta (The above example can be easily adapted to other systems)
