A4988 Stepper Drive with Heatsink

Features:

• 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
• 3 and 5 V compatible logic supply
• Intelligent chopping control that automatically selects the correct current decay mode (fast decay or slow decay)
• Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection
• Short-to-ground and shorted-load protection.