Microchip Technology DM330022-1 dsPICDEM MCSM Development Board Stepper for 4-channel, a programmable ADC trigger,

The Microchip PICDEM™ MCSM is a development board which is targeted to control both unipolar and bipolar stepper motors in open-loop or closed-loop (current control) mode. The hardware of this development board is designed in such a way that no hardware changes are necessary for 8-, 6- or 4-wire stepper motors in either bipolar or unipolar configurations.

Built-in power supplies
Two full-bridge inverters
Software to run motors in open-loop or closed-loop with full or variable micro-stepping is provided
Over-current protection