I recently got the Dagu 4 channel controller, so i am left with two 2A dual controllers. Whats the best possible use i can have for those ?
Should i run servos with it ? I plan to get two new pan tilt kits
I kind of imagined it could be a backup incase the Dagu one broke down, using some form of fallback circuitry, but thats a waste probably.
Any ideas ? 
Unless you’re planning to make your own servo from parts (motor, H bridge, feedback pot, circuitry), I don’t see how the controllers above (really H bridges) would be used to drive a servo(s) for any extra pan/tilt. They switch voltages to DC brushed motors, allowing directional control and speed control (via PWM).
Used in next 'bot perhaps ?
I have read something somewhere that someone used a motor controller for a standard servo. I’ll check it out and tell what i found. I might remember it wrong though,
Plus position feedback and loop control will give you a 'servo'.KirkHamster:
I have read something somewhere that someone used a motor controller for a standard servo. I’ll check it out and tell what i found. I might remember it wrong though,
Yes, it can be done and is not that hard to do. The control loop can be purely a hardware circuit or a micro-controller.
Microchip has a few App Notes on doing this and a google search will find some DIY and professional systems. Also read Wiki on servos for a overview.