The stepper motor driver A4988 is used to control stepper motors that are used in 3D printers, CNC machines and any similar machinery. It provides a simple step and direction control interface and it has five different step resolutions: full step, half step, quarter step, eighth step, and sixteenth step. Also it has an adjustable current control lets you set the maximum current output using a potentiometer which allows you to use voltage above what your stepper motor’s rated voltage in order to achieve higher step rates.
- Over temperature shutdown
- Over current protection
- under voltage lockout
- Short to ground and shorted load protection
Warning: Connecting or disconnecting a stepper motor while the driver is powered can destroy the driver.