well maybe we're both nuts :-)

But .. just to be clear .. I did not want to stop at controlling servos from the ASSI .. I wanted to create a feedback loop from the standalone ASSI telemetry on the Android device back to the plane.

Now, I suppose if the RF link you are using for telemetry is bi-directional, and can send signals back to the plane .. then that could do it. I was thinking we would have to find a way to "fake out" the main TX and have it upload channels for us, hence the idea about the trainer mode...

Thanks for the pointer on the device from Gaspar. So in order to use the Xicoy ECU, this is the only way, right? You have to have one of these devices? No direct connect like the JetCat?

Dave