A4988 Pololu-Compatible Stepper Motor Driver up to 2 A with Heatsink

The A4988 Pololu-compatible driver is one of the most widely used stepper motor drivers for 3D printers, CNC machines and automation projects. It controls bipolar stepper motors using STEP/DIR signals and supports multiple microstepping modes for smooth and precise motion.

Features

• Driver for bipolar stepper motors.
• Compatible with controller boards designed for Pololu-style drivers.
• Supports up to 1/16 microstepping.
• Over-temperature and short-circuit protection.
• Compatible with 3.3 V and 5 V logic levels.
• Adjustable motor current via onboard potentiometer.

Technical Specifications

• Model: A4988.
• Maximum current: up to 2 A (with adequate cooling).
• Microstepping modes: Full, 1/2, 1/4, 1/8 and 1/16 step.
• Logic voltage: 3.3 V or 5 V.
• Form factor: Pololu-compatible.

Compatibility

Compatible with controller boards designed for Pololu-style driver modules used in 3D printers, CNC machines, robotics and other bipolar stepper motor control applications.

Package Contents

• 1 × A4988 Pololu-compatible stepper motor driver.
• 1 × Aluminum heatsink with thermal adhesive.