A4988 Stepper Motor Driver

A4988 Stepper Motor Driver Module

The A4988 Stepper Motor Driver Module is a compact and efficient driver designed to control bipolar stepper motors with precision and ease. Based on the Allegro A4988 driver IC, this module supports full, half, quarter, eighth, and sixteenth-step microstepping, making it ideal for CNC machines, 3D printers, robotics, and other motion control applications.

With adjustable current limiting, built-in over-temperature protection, and simple STEP/DIR control interface, the A4988 allows smooth and accurate motor movement while protecting your hardware from damage.

Features:

• Supports bipolar stepper motors up to 2A per coil (with proper cooling)
• 5 microstep resolutions: Full, 1/2, 1/4, 1/8, and 1/16 step
• Simple STEP and DIR control interface
• Adjustable current limiting via onboard potentiometer
• Built-in thermal shutdown, overcurrent, and undervoltage protection
• Wide motor supply voltage range: 8V – 35V
• Compatible with Arduino, CNC shields, and 3D printer control boards
• Compact design for easy integration into projects

Specifications:

• Driver IC: A4988
• Logic Voltage: 3V – 5.5V
• Motor Supply Voltage: 8V – 35V
• Maximum Output Current: 2A per coil (with heatsink and cooling)
• Microstepping: Full, 1/2, 1/4, 1/8, 1/16
• Control Signals: STEP, DIR, ENABLE
• Protection Features: Thermal shutdown, overcurrent protection, undervoltage lockout

Applications:

• 3D Printers
• CNC Machines
• Laser Engravers
• Robotics Projects
• Camera Sliders
• Automated Motion Systems
• DIY Electronics and Maker Projects

Package Includes:

• 1 × A4988 Stepper Motor Driver Module