Exactly. This little project is actually three projects in one. It does I ever wanted to do with microcontrollers and servos: extends servo movements, processes the PPM stream and does the headtracking!
I just had a quick look at the code - it seems to be synchronising itself on the TX's PPM output, and to change 3 of the channels before giving it to the PPM in again.
I also wonder whether using this technique I could turn my Optic 6 (5 proportional + 1 discrete channels) into 8 discrete channel machine. Just by replacing servo cycles I don't need with what's useful and by extending the 6-channel PPM train with two another servo pulses. I hope this will work since I don't believe the PPM signal that goes to the trainer port is subject to any further processing in the transmitter before it gets to the FM module.
And thanks Mr RC-CAM for the links! I'm quite new to this forum, so it will be a lot of reading for me
Edited by mieczotronix, 05 July 2006 - 12:00 PM.