A4988 Stepper Motor Driver

The A4988 Stepper Motor Driver Module is a compact and efficient microstepping driver designed for precise control of bipolar stepper motors, making it a core component in 3D printers, CNC routers, laser cutters, and robotic systems. It operates based on Allegro’s A4988 driver chip and supports microstepping levels up to 1/16, allowing smoother and quieter motor operation compared to full-step drivers.

This driver features adjustable current limiting, internal thermal shutdown, crossover-current protection, and under-voltage lockout for improved reliability and safety. The current limit can be set using an onboard potentiometer, allowing the use of higher voltage power supplies to achieve greater step rates without risking motor damage.

It is fully compatible with popular driver shields and controller boards such as CNC Shield V3, RAMPS 1.4, and Arduino Mega/Uno setups. The package includes a heatsink for better thermal dissipation during continuous use. Its compact footprint allows it to be used in multi-axis control systems with ease.

Whether you’re building or repairing a 3D printer, automating a CNC machine, or developing a robotics project, the A4988 module from eleberric.com offers dependable, high-performance stepper control.

Specifications

• Model: A4988

• Motor Compatibility: Bipolar stepper motors

• Logic Voltage: 3V to 5.5V

• Motor Supply Voltage: 8V to 35V

• Max Output Current: Up to 2A per coil with proper heat dissipation

• Microstepping Options: Full, 1/2, 1/4, 1/8, 1/16

• Control Interface: DIR and STEP pins

• Protection Features:

  • Over-temperature thermal shutdown

  • Under-voltage lockout

  • Crossover-current protection

• Adjustable Current Control: Yes

• Dimensions: Approx. 20mm x 15mm

• Weight: Approx. 3g

• Included: Heatsink

Key Features

• Microstepping Control: Allows smoother motor motion with higher precision.

• Easy Interface: Just two pins (STEP and DIR) for simple control.

• Current Limiting: Adjustable via onboard potentiometer.

• Thermal and Overcurrent Protection: Ensures reliability under load.

• High Compatibility: Works seamlessly with Arduino, RAMPS, CNC shields.

• Compact Design: Fits into small enclosures and tight spaces.

• Heatsink Included: Improves thermal performance during continuous operation.

Applications

• 3D Printers: For precise motion control in X, Y, Z axes.

• CNC Machines: Ensures accurate motor positioning and control.

• Robotic Systems: Enables movement in arms and wheels with fine precision.

• DIY Mechatronics Projects: Useful for custom motion and automation builds.

• Laser Engraving Machines: Smooth motion control for intricate patterns.

• Camera Sliders/Track Systems: Silent and accurate camera positioning.

Explore the full potential of stepper motor control with the A4988 Stepper Motor Driver, now available on eleberric.com. Trusted by hobbyists, students, and professionals across Sri Lanka. Buy today for quick delivery and local support!