A4988 Reprap Stepper Driver
- Simple step and direction control interface
- Five different step resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step
- Adjustable current control lets you set the maximum current output with a potentiometer, which lets you use voltages above your stepper motor’s rated voltage to achieve higher step rates
- Intelligent chopping control that automatically selects the currect current decay mode (fast decay or slow decay)
- Over-temperature thermal shutdown, under-voltage lock-out, and crossover-current protection
- Short-to-ground and shorted-load protection