Shield for Arduino UNO or MEGA, which can drive three bipolar stepper motors 2A. The shield includes three driver (MD09B - one for each motor) produced by Pololu. Each driver contains a dual H-bridge MOSFET and can be set to handle both the direction and the number of degrees that the rotor of the motor has to make to the receipt of each command; you can set the step according to the accuracy that is desired. On the shield there are also 4 analog inputs.