Mitsubishi Cn105, The same CN105 connector is used by the Mitsubishi KumoCloud remotes, which have a compatibility list available. After I had manually poked about and figured out the CN105 pin output and discovered it was a UART, I found this picture of the pinout of the Mitsubishi CN105 connector! Its functionality allows you to expand the control and capabilities of your Mitsubishi air conditioning system. The connector is called CN105 on the Mitsubishi board. Manages communications between accessories that connect to the CN105 port and allows more than one device to be connected. You can find links to purchase the parts needed to assemble a custom cable below. I had 4 Mitsubishi MSZ-FH09NA Heat Pumps installed in my home. With the Airzone AZX6ACCSPLMEL CN105 Splitter, you can improve your HVAC system and provide Mitsubishi air handlers wireless management. Its functionality allows you to expand the control and capabilities of your Mitsubishi air conditioning system. Plugin is based on Arduino library to control Mitsubishi Heat Pumps. It turned out there are many a bit different tutorials available on how to achieve this - all using the great library from GitHub - SwiCago/HeatPump: Arduino library to control Mitsubishi Heat Pumps via connector cn105, but with a bit different sketches - so no out-of-the-box solution (firmware). com/echavet/MitsubishiCN105ESPHome For this i used the following hardware: Discussion about Mitsubishi Heatpump - How to find CN105? Documentaion of Mitsubishi CN105 Protocol of Ecodan Air Source Heat Pumps - m000c400/Mitsubishi-CN105-Protocol-Decode Arduino library to control Mitsubishi Heat Pumps via connector cn105 - SwiCago/HeatPump Multiplier for Mitsubishi Electric AC units. A few others have helped discover new things along the way The same CN105 connector is used by the Mitsubishi KumoCloud remotes, which have a compatibility list available. I recently installed 4 heat pumps in my house to provide heat in the winter and AC in the summer time. The unauthorised use and redistribution of the firmware of the Mitsubishi Electric Wi-Fi Interface is strictly prohibited. This project is a firmware for ESP32 microcontrollers supporting UART communication via the CN105 Mitsubishi connector. The library is in C++ and in theory can be used by other micro controllers that have a serial port. 0-4P cable from them. Slim and City Multi lines commercialized by Mitsubishi Electric Important User Information Disclaimer The information in this document is for informational purposes only. Slim, City Multi , Lossnay, and Ecodan systems. Explore features, benefits, and top suppliers. Wanted to note how extremely easy it was to get this working with the M5Stack NanoC6 and one HY2. Gère les communications entre les accessoires connectés au port CN105 et permet de connecter plus d’un dispositif. They each akamali/mitsubishi_heatpump_emulator - A relatively feature-filled emulator for CN105 heat pumps; useful for debugging and contains some other interesting research. Connecting my Mitsubishi Electric aircons to my smart home Or "How I bypass MELCloud with small ESP32s and ESPHome" 10 February 2025 homekit, homeassistant, mitsubishi, esphome, automation Home Assistant with Mitsubishi air conditioners without MELCloud I recently moved to a new apartment that has a Mitsubishi Electric HVAC system, commonly known as an air conditioner. 008 views Reageer Home Assistant Mitsubishi esp32 ESPHome Warmtepomp Hi Guys, a while back I created a library for the ESP8266 chip to control mitsubishi heat pumps via serial connection its cn105 port. Arduino library to control Mitsubishi Heat Pumps via connector cn105 - SwiCago/HeatPump CN105 Multiplier for Mitsubishi Electric Air Conditioning Units This innovative multiplier is designed to be compatible with Mitsubishi Electric air conditioning units, enabling the connection of multiple accessories to the CN105 port. If there are more than one interfaces, continue to plug in the remaining interface devices into the CN105 on the PCB of a powered off Mitsubishi Electric unit. Oct 23, 2017 ยท I got a Mitsubishi Heat Pump, which has pretty limited thermostat options, so I decided to build my own thermostat. To get convenient remote access, connect to Wi-Fi. The GitHub has loads of documentation on the features from simple to advanced. Click to find the best deals and ensure seamless integration with Alexa & Google Home. It uses an esp32 and no s… The Mitsubishi PAC-US444CN-1 is an adapter that allows a field supplied 24v thermostat to control a mini split indoor unit through the CN105 connector. What I have done already: I’m already using HA with Zigbee2MQTT and many Zigbee sensors installed the ESPHome addon added the ESP… Discover the mitsubishi electric cn105 smart thermostat compatible with duct split units.