What is it?

With this small board you connect the Mitsubishi Electric Air to water heatpump together with Melcloud adapter or Procon adapter to the same CN105 connector on the mitsubishi main board.

The Atom s3 lite from m5stack will connect to Home Assistant (based on esphome) and makes it possible to have melcloud connected. If melcloud network fails, the Atom will still be able to control the heatpump.

The PCB is delivered with a 1 mtr cable, so the module can be mounted outside the cabinet to have a better WIFI signal.

The code can be uploaded to the esp in different languages: English, Dutch, French, Italian and Spanish On request this is already done for you, and you can connect through captive portal (wifi hotspot).

It is still possible to upload the code yourself with esphome.

The open source software is developed and maintained by GekkeKoe on Github For information: see the links below.