How to control DC motor forward and reverse with one potentiometer

holmes4:
For a motor (with h-bridge/motor shield of course!). You read the pot with ADC and then values above (say ) 700 are forward, values below 300 are backward and values in between are stop. But you still need one pot per motor.

Mark

That looks to be correct. Do you have a link to a recommended h-bridge/motor shield? Remember, I'm simply using a analog, 2-axis joystick (with 2 pots total) to control a pair open-loop motors for use in a pan tilt system. For example, if the joystick is half-way tilted to the right, the pan/tilt system will go half-speed in that direction. I've done this plenty of times with servos but now the components need to be basic, dc motors.