I have one of these motorshields and am trying to control the steppers with a potentiameter. Problem is that I have no idea what the pin for the step and direction are. Trying to use the AF library with the Sample code in the arduino does not work without knowing what pins are which. Can anyone point me to a schematic of the Motorshield besides the one on Adafruit Industries site? Better yet, can anyone point me to a site or URL that has someone that has successfully interfaced the shield to a Pot?
Thanks to all in advance.