Great reverse engineering !

After all I am curious if you’ve managed to control the Gree external unit just with the protocol?

I know there are some units e.g. XK117 or AHU com that can control Gree units, but apparently only U-match series.

@Grzegorz Krawczyk
How are you connecting to the message bus from C#? Do you have some USB signal reader that you can control from your program?

Thanks!