Do you have the driver for balancing two Virtuabotix Yellow Gearmotor and Wheels running. I need to be able to turn turn right and left, and go forward and backward at different speeds.. I hope to buy one from your website.
Yes, we have a board that is perfect for that job. It is called the MotorMaster, and can be jumpered to an Arduino Uno/Mega or plugged directly into the Versalino Uno or Nano.
Additionally we have the Arduino Motor Shield which can do the same things, and plugs right on top of a standard Arduino board.