Re: RC Servo help

Thanks for all the replys.

The servo's are being controlled by an AVR micro programmed with the
excellent BASCOM language (demo version).
6V supply to servos then through a 5V regulator for the logic supply.
A PC is running the motion detection program and connected to the
servos via RS232.

The problem ended up being the amount of debugging info and other data
I was sending to the PC via the serial port.  I was rewriting the
program to switch the servo updates on/off as suggested by Ian Dobson.
The most basic servo program had no hunting with the servos still
powered.  After a little revision of the main program the pan&tilt
platform is nice and steady and won't be sending my motion detection
software crazy :)

My main problem was I didn't have any experience with RC servos so
wasn't sure if the hunting was normal.  Also I didn't make sure the
basics worked correctly either :(

Oh well, the large capacitors across the servo power lines (thanks
John) make it look as if it means business now.

Cheers all.