Flexible Platform for servo mixing?

[brnjones]

All,

What are some good platforms for building an airborne servo mixer that will take ~8 PWM channels as input (from radio receiver) and output ~8 channels (to servos)?

Other requirements:

<$250
C/C++/BASIC/higher order language

I know there are many ways to skin the cat, but just wanted to tap the breadth of experience on here to see what others are using.

I currently use AVRs, and figure I could do this with one or two AVRs, but I was wondering if anyone had used something else.

Thanks!

-Brandon

[maxvtol]

Brandon,
Don't know if you've seen Donald's thread here (http://www.rcgroups.com/forums/showthread.php?t=752440&highlight=mixer) , he's currently working on a mixer.

I built one out of a Coridium ARMmite and I'm flying it now, my thread is here (http://www.rcgroups.com/forums/showthread.php?t=701709&highlight=vtol+mixer), not real elegant I must say, but it works.

Maybe you could pick up some ideas.

[shanghai_fool]

Yes, I am still working away on the mixer. It will be capable of a lot more than mixing though. I'll give more details later. I just want to prove out each item before committing it to a pcb run. I also had to switch PCB design programs in the middle so that slowed things down a bit. I have to keep this thing within the 500 pin limit. I have tested the inputs though and I think it will take whatever you throw it. I tested with Futaba 9C PCM and works OK. I should have the PCB ready for manufacture in a week or so. Next I need to figure out how to do new SMD parts with old eyes.

Donald