Put your electronics in motion!
A motor driver shield for Arduino Uno, Mega and Duemilanove.
The Rotoshield uses the L293DNE (Quad Half H-bridge) which provides 0.6A per bridge (1.2A peak) with integrated thermal protection and kickback diodes. It can handle up to four DC motors from 4.5V to 20VDC. It can also control up to two stepper motors.
This board, based around the MAX7313 chip, provides 16 I²C-controlled I/O ports with PWM.
Each I/O port can be individually configured as either an open-drain current-sinking output rated at 50mA and 5.5V, or a logic input with transition detection and an interrupt option.