The A4988 Stepper Motor Driver Module is a compact and reliable device designed for controlling stepper motors, commonly used in 3D printers like the Pololu RepRap. This module helps in precise movement control, ensuring accurate positioning and smooth operation of the printer’s extruder and other mechanical components.

Key Features :

• Control a bipolar stepper motor at up to 2 A current per phase: An onboard potentiometer is used to adjust the current output
• Simple step and direction control interface with five step resolutions : full-step, half-step, 1/4-step, 1/8-step, and 1/16-step
• Uses just 2 pins from the microcontroller, one for controlling the rotation direction and the other for controlling the steps
• 8V to 35V output voltage range at up to 2A current
• Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection