I have it working now. Turns out everything has to be paired on the one phone or Matter won’t play. The problem I had was that the receiver paired with my phone but the thermostat wouldn’t. Starting again from scratch on my wife’s phone sorted it, made the Matter code available and I was able to get it all working on Home Assistant (phew)
I run Home Assistant inside Docker on a Raspberry pi so just manually added the Matter server as a separate docker image.
A bit embarrassing it took me as long as it did (though it was first thing Monday rather than the entire week!) but very glad it is all working now.
Thanks for the pointers, very helpful
I have only recently got TadoX and started using Matter / Threads etc…
I have just a dig through and testing different attributes, not sure if others have done this already - inwhich case then I will stop.
SystemMode
AttributeId: 28 (0x001c) seems to change value depending on thermostat being off vs on
0 seems to be off
4 seems to be on
What I can’t find (yet) is a difference between schedule vs none-schedule. but will keep digging