SparkFun Ardumoto Shield Kit
The Ardumoto Shield is an easy-to-use dual motor controller for Arduino. Combined with an Arduino, the Ardumoto makes a fantastic controller platform for RC vehicles or even small autonomous robots. At the heart of the Ardumoto – the big, black chip right in the middle – is an L298, one of our favorite dual-channel motor drivers around, capable of driving up to 2A per channel. The board takes its power from the same Vin line as the Arduino board, includes blue and yellow LEDs to indicate active direction, and all driver lines are diode protected from back EMF.
Control for motor attached to OUT1/2 is connected to digital line 12 (direction A) and digital line 3 (PWM A). Control for motor attached to OUT3/4 is connected to digital line 13 (direction B) and digital line 11 (PWM B).