The Robotics Connection dual 10A h-bridge controller board can easily drive
those larger robot motors, and can be easily driven using the
Serializer .NET Robot Controller
You just need to provide +5V power and Ground for logic, PWM and Direction
signals for driving, and external battery power to power and control your
motors.
There is a red power led as well as dual bicolor leds (red/green) to give you a
visual indication of the status of each h-bridge driver.
This driver board requires between 12V and 24V.