Buderus KM271-WiFi

Device Type: misc

Electrical Standard: global

Board: esp32

Difficulty: Comes with ESPhome, 1/5

Project URL: https://github.com/the78mole/ESPhome-KM271-WiFi

The sources for the hardware can be found in my KM271-WiFi repo. There is also a WebTools enabled project for the KM271-WiFi ESPhome variant, including the esphome firmware binaries (Releases).

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NOTE: Use the WebTools, if you just want to flash the board.

The sources for the ESPhome component can be found in my esphome_components repo. Maybe added to ESPhome repo somewhen.

The hardware can usually bought on tindie for a raesonable price (~$40).

An alternative, standalone and very sophisticated firmware can be found here on dewenni's repo. This firmware is supports now MQTT discovery and also integrates seamlessly with Home Assistant.