Motor driver A4988

Key features:

• A4988 driver board widely used in 3D printers
• Simple step and direction control interface
• Thermal protection, over-current protection, ground fault protection
• 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 toachieve higher step rates
• 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
• Automatic current decay mode detection / selection
• Internal UVLO
• Mixed with slow current decay modes
• Synchronous rectification for low power dissipation
• Crossover-current protection
• Thermal shutdown circuitry
• 3.3 and 5 V compatible logic supply
• Thermal shutdown circuitry
• Ground Fault Circuit
• Load short-circuit protection
• Of five optional step mode: full, 1/2, 1/4, 1/8 and 1/16