Yes, I've actually been fighting with air conditioning controls for a while now. I do have a couple of A/C keysets in Pierogi, but the main problem has been that most modern air conditioner remotes try to maintain state information. (That is, they try to remember what the temperature, fan speed, etc. was last set to.) This state information then gets dumped into each command sent by the remote, which makes A/C IR commands far more complex.

I have to admit that, after spending a few weeks on the problem last year, I put it on the back burner and focussed on other, easier tasks. I'll take another look and see if I can get something put together...