Low cost connection to Home Assistant
With a ESP8266 connected to the MCZ remote control you can control the stove through Home Assistant.
Materials needed:
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1x Esp8266 microcontroller (I used an bare esp12-e, but a D1 mini or Nodemcu will work too).
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4 PC817 optocouplers.
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Basic solder skill is needed to attach the wires to the RC main board.