A4988 Stepper Motor Driver

This is the stepper motor driver commonly used on Ramps 1.4 set ups for 3D printers. The A4988 offer’s 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. Comes with free heat sinks.