A4988 Stepper Motor Driver 2A

65.00 EGP

A4988 Stepper Motor Driver is a compact, high-performance driver for bipolar stepper motors, supporting up to 2A per coil and 1/16 microstepping. With built-in translator circuitry, it simplifies motor control for CNC machines, 3D printers, robotics, and automation projects.

SKU: MD-22869 Category: Tags: ,

Description

A4988 Stepper Motor Driver 2A

🔑 Key Features

✅ 2A Per Coil Output – Drives NEMA 17/23 steppers efficiently
✅ 1/16 Microstepping – Smooth, precise motion control
✅ Built-in Translator – Works with just STEP/DIR signals (no complex coding)
✅ Overcurrent & Thermal Protection – Prevents motor/driver damage
✅ Adjustable VREF – Fine-tune current limit via potentiometer
✅ Compact Design – Easy to mount on breadboards or PCBs


📊 Technical Specifications

Parameter Specification
Motor Voltage 8-35V DC
Output Current Up to 2A/coil (adjustable)
Microstepping Full, 1/2, 1/4, 1/8, 1/16
Logic Voltage 3.3-5V
Protections Overcurrent, thermal shutdown, under-voltage lockout
Dimensions 20mm × 15mm × 10mm

🚀 Applications

  • 3D Printers (Extruder/X-Y-Z axis control)

  • CNC Machines (Spindle/linear motion)

  • Robotics (Arm/joint precision movement)

  • Automated Systems (Conveyor belts, dispensers)


🔧 Wiring Guide

Pin Connection
VMOT Motor power (8-35V)
GND Motor ground
STEP MCU pulse input (e.g., Arduino)
DIR MCU direction control
ENABLE Optional motor disable
MS1/MS2/MS3 Microstep resolution selection

⚠ Warning:

  • Always set VREF (current limit) before use!

  • Use heat sinks for currents >1A.


📦 Package Includes

  • 1 × A4988 Driver Module

  • 1 × Heat sink (optional)

 

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