I'm building a small tank. Each side of the treads will be operating independently from one another, powered by two separate huge electric dc motors ( I harvested from electric shopping carts).
I'd love for the tank to be arduino controlled as far as motion goes with 3 separate modes. One is a photovore mode. One is a random "roomba" mode, and the third is a manual control mode with an Xbee to cell phone control.
The problem is, I have no idea how to control these motors with an arduino. Never done it! Can it even be done?
The amount of power required to MOVE these beasts would fry my arduino. I was thinking...could I use a transistor in one of the digital outputs that would allow power to flow to the motors?
Each motor is 12 volts 1/10 HP at 12 amps. The motor ratio is 14.3:1 and clocks at 2900 rpm