I'm interested in improving my small robot to drive two motors with this motor driver. It looks simple enough to wire, program, and use.
1. Do I need counter emf diodes in my circuit in addition to my motor driver board?
2. If so, what do you suggest?
3. Towards the bottom of the page on the Polulu link it says that temperature can be lowered and current improved by adding a heat sink. How do I do that? Is it as simple as using thermal tape with a small heat sink such as this?http://www.sparkfun.com/products/10746
Polulu TB6612FNG Dual Motor Driver: http://www.pololu.com/catalog/product/713
It's also the same as Sparkfun's:http://www.sparkfun.com/products/9457
For my motors:http://www.pololu.com/catalog/product/1117
For my Gearbox:http://www.pololu.com/catalog/product/114
Motor Supply Battery:
9v rechargeable Ni-MH battery
Arduino Supply Battery:
9v alkaline or possibly another rechargeable 9v Ni-MH battery
Thanks in advance