Mitsubishi Ecodan Air-to-Air and Air-to-Water Bridge for CN105 to MQTT

This software is to communicate with the Mitsubishi Ecodan FTC controller or AC Unit over the CN105 connector (As used for MELCloud, MHK2 or the MELCOBEMS Procon A1M Mini)

Hardware

To learn about the Hardware and Device Recovery, please read Hardware and Recovery.md

Pre-Compiled software is for offical hardware:

• All variations of PayPal sold hardware
• Generation 2 WiFi ESP32 ebay sold hardware (with or without MELCloud port)
• ESP32 Ethernet ebay sold hardware
• Generation 1 WiFi ESP8266 ebay sold hardware (No longer available)

You can bring your own hardware, compile in Arduino or flash the same hardware above with pre-compiled files Or buy directly!

Detailed Setup Instructions

The full instructions on how to setup Home Assistant and this adapter is documented here.

Performing Firmware Updates

You can find instructions on how to update your device firmware here.

Home Assistant

To learn all about the Home Assistant controls & sensors, please read HA Parameters.md

Proxy (Onward Forward)

It's possible with appropriate hardware to keep MELCloud running, see Hardware and Recovery.md

Onboard Compensation Curve

To learn all about the Onboard Compensation Curve, please read OnboardCompCurve.md

Mitsibushi CN105 Protocol

To learn all about the Mitsibushi CN105 Protocol, please read Protocol.md

Buy me a coffee

Supporting this project by purchasing hardware is the primary way to help, but you can always say thanks by buying me a coffee.