MegaMoto Plus Motor Control Shield for Arduino
The Robot Power MegaMoto Plus™ is a low-cost robust H-bridge "shield" for the Arduino™ and hardware compatible base units. The standardized shield format stacking headers allows multiple MegaMoto Plus units to be controlled by a single Arduino Uno or Duemilanove using pass-through stacking headers.
The MegaMoto Plus is the first and only motor control for Arduino that gives users the ability to control multiple motors at up to 40A of current and up to 28V. That's over 1100W of power! At last Arduino users can easily control high-current, high-power motors for robotics, scooters & Segways, industrial controls and many other applications by using their familiar development environment and without messy, unreliable "lash up" type connections to discrete motor controls.
The MegaMoto Plus is a dual half-bridge circuit that can be configured either has a full H-bridge or as two independent half-bridge circuits. This allows a single MegaMoto Plus to drive one motor with full variable-speed control both forward and reverse. It also allows two independent motors to be controlled in a uni-directional fashion by connecting one side of each motor to the battery negative and the other motor lead to one of the MegaMoto Plus outputs.