jpcolin,

I am working on the same thing - controlling a Sony receiver via RS-232 and Global Cache for control via iPad. I am curious what control software you are using? I am using iRule.

I have all of the communication to the reciever going quite well, but I am trying to figure out how to make the feedback commands work (for 2-way feedback with volume control, etc.). Have you made any progrss on this since your last post?

Also, do you (or anyone) have the hex codes for power toggle and mute toggle for Sony receivers? I have the dicrete codes of course, but the toggle codes don't seem to be listed in the protocal spec.