A4988 Stepper Motor Driver Expansion Board

A4988 Stepper Motor Driver Expansion Board is a compact, efficient, and reliable solution for controlling bipolar stepper motors with high accuracy. Designed around the popular A4988 microstepping driver IC, this expansion board is widely used in 3D printers, CNC machines, robotics projects, and automation systems. It enables smooth motor operation, precise position control, and easy integration with microcontrollers such as Arduino, Raspberry Pi, and other development boards.

Built to handle demanding motion-control tasks, the A4988 Stepper Motor Driver Expansion Board supports full, half, quarter, eighth, and sixteenth microstepping modes, ensuring reduced vibration and improved torque performance. With onboard current regulation and thermal protection, this driver board offers stable and safe motor operation even under continuous load.

Key Features

• High-Precision Microstepping Control
  Supports 1, 1/2, 1/4, 1/8, and 1/16 microstepping, enabling smooth and accurate motor movement.

• Wide Voltage Compatibility
  Operates with motor supply voltages from 8V to 35V, making it suitable for various stepper motor applications.

• Adjustable Current Limiting
  Onboard potentiometer allows fine adjustment of motor current, preventing overheating and ensuring optimal performance.

• Built-In Protection Mechanisms
  Includes over-current protection, thermal shutdown, and under-voltage lockout for enhanced safety and reliability.

• Easy Microcontroller Interface
  Simple STEP and DIR control interface enables seamless integration with Arduino, CNC shields, and embedded systems.

• Compact Expansion Board Design
  Small form factor fits easily into space-constrained projects such as desktop CNC machines and DIY robots.

• Efficient Heat Dissipation
  Designed to support external heatsinks for improved thermal management during high-current operation.

Technical Specifications

• Driver IC: A4988 Stepper Motor Driver

• Motor Type: Bipolar Stepper Motors

• Operating Voltage (Motor Supply): 8V – 35V

• Logic Voltage: 3.3V – 5V compatible

• Maximum Output Current: Up to 2A per coil (with proper cooling)

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

• Control Interface: STEP, DIR, ENABLE

• Protection Features: Thermal shutdown, over-current protection, under-voltage lockout

• PCB Type: Expansion board / breakout board

• Mounting: Compatible with CNC shields and breadboards

Applications

The A4988 Stepper Motor Driver Expansion Board is highly versatile and suitable for a wide range of motion-control projects:

• 3D Printers – Precise axis control for smooth printing and high-quality output

• CNC Machines – Accurate motor control for milling, engraving, and cutting

• Robotics Projects – Reliable movement control for robotic arms, wheels, and joints

• Automated Linear Actuators – Position control in industrial and DIY automation

• Plotters and Laser Cutters – Smooth and controlled motor motion for precision work

• Educational and Research Projects – Ideal for learning stepper motor control and embedded systems

Why Choose the A4988 Stepper Motor Driver Expansion Board?

Compared to basic motor drivers, the A4988 Stepper Motor Driver Expansion Board offers superior precision, better current management, and flexible microstepping options. Its compact size and robust protection features make it a preferred choice for both beginners and professionals. Whether you are building a DIY CNC machine or developing an advanced robotic system, this driver board ensures smooth performance, reduced noise, and long motor life.

The A4988 Stepper Motor Driver Expansion Board is a powerful and cost-effective solution for precise stepper motor control. With its wide voltage support, adjustable current limiting, multiple microstepping modes, and strong protection features, it delivers reliable performance across numerous applications. Perfect for 3D printing, CNC, robotics, and automation, this expansion board is an essential component for any motion-control project.

Package Includes:

1 x A4988 Stepper Motor Driver Expansion Board

FAQ

1. Where can we buy this A4988 Stepper Motor Driver Expansion Board?

This product is available online at https://aiiottech.in/product/a4988-stepper-motor-driver-expansion-board/ and also available at our store in Pudupakkam/Kelambakkam, Chennai-603103

2. When can I get this A4988 Stepper Motor Driver Expansion Board after placing the order?

RGRJ AIIoT TECHNOLOGIES will immediately ship and deliver the product within 1-3 working days.

Video Link: STEPPER DRIVER BOARD A4988 DRV8825 UNBOXING