Hello everyone,
I have a Mitsubishi MSZ-HR50VF air conditioning controlled by an IR remote control.
I integrated it into HA and piloted it via a Broadlink RM4 mini box with which I acquired all the necessary remote control codes, having not found a code file for my model.
Everything works very well but in use it is complicated not to have the feedback on HA of the commands sent by the IR remote control.
So I thought about capturing the infrared signal from the physical remote control to modify the HA air conditioning entity. I don’t think we can do it with broadlink so I’m thinking of using a clone of WEMOS D1 under esphome, with an IR receiver on pin D1 and an IR transmitter on pin D2.
The principle of use that I have in mind would be to capture (in parallel with the air conditioning IR receiver) the frame sent by the physical remote control.
On one side the air conditioner receives and applies the command received, on the other, thanks to the Wemos IR receiver the air conditioning entity on HA would be updated with the information from the IR frame, while being able to control the air conditioning with the same entity.
The only downside would then be that the information displayed on the remote control screen would be distorted since the remote control cannot receive data.
In this configuration the broadlink rm4 mini would no longer be used at all.
For the remote control frames after several researches, I was able to determine that a frame is made up of 18 bytes, that the switching on or off depends on the value of the byte[5], the byte[6] manages the operating mode(COOL, HEAT, DRY…), the byte[7] the temperature and the byte[9] & 0x07 the fan speed and the same byte[9] & 0xF8 the direction or oscillation (SWING) of the fins.
I also know that pressing a button sends the entire air conditioner setting, namely the operating mode, fan speed, blade direction and temperature.
The problem is that I’m doing pretty well with arduino but esphome and its yaml remain quite vague for me and I have no idea how to integrate and use this system.
Thanks in advance for any tips you can give me…