# A4988 Stepper Motor Driver Module

> Allegro A4988-based stepper motor driver module with microstepping up to 1/16 step, handling up to 2A per coil. Includes heatsink. Essential for 3D printers, CNC machines, and precision robotics.

## Quick Facts

- **Brand:** OpenELAB
- **Board Type:** module
- **Price:** ~$4.95
- **Product Readiness:** developer
- **CPU:** N/A (motor driver module)
- **RAM:** N/A
- **Flash:** N/A
- **Power:** 8-35V motor supply, 3.3-5V logic
- **Operating Voltage:** 3.3-5V

## Open Source

- **Firmware:** No
- **Schematics:** Yes
- **PCB Layout:** No

## Use Cases

- 3d-printing
- cnc
- robotics

## Components

- **Allegro A4988** (Motor Driver): DMOS microstepping driver with translator, capable of driving bipolar stepper motors in full, half, quarter, eighth, and sixteenth step modes with up to 2A output current per coil — [Datasheet](https://openhardware.directory/r?to=https%3A%2F%2Fwww.allegromicro.com%2F%7E%2Fmedia%2FFiles%2FDatasheets%2FA4988-Datasheet.ashx&ref=openhardware.directory&product=a4988-stepper-motor-driver&source=md-export)

## Protocols

- **Step/Dir**

## Description

## Overview

The A4988 Stepper Motor Driver Module is a compact carrier board for Allegro's A4988 DMOS microstepping driver. It can drive bipolar stepper motors at up to 2A per coil with adjustable current limiting and five microstepping resolutions down to 1/16 step.

## Key Features

- **Microstepping**: Full, half, quarter, eighth, and sixteenth step resolutions
- **Adjustable Current Limit**: On-board potentiometer for current adjustment
- **Thermal Protection**: Includes heatsink and built-in thermal shutdown
- **Simple Interface**: Only Step and Direction pins needed for basic operation
- **Wide Motor Voltage**: Supports 8V to 35V motor supply

## Typical Applications

- 3D printer axis control (RAMPS, Marlin)
- CNC router and engraver stepper control
- Robotic joint positioning
- Automated camera sliders

## Where to Buy

- [OpenELab](https://openhardware.directory/r?to=https%3A%2F%2Fopenelab.io%2Fproducts%2Fa4988stepmotordrivermodule&ref=openhardware.directory&product=a4988-stepper-motor-driver&source=md-export) — $4.95

## Resources

- [product](https://openhardware.directory/r?to=https%3A%2F%2Fopenelab.io%2Fproducts%2Fa4988stepmotordrivermodule&ref=openhardware.directory&product=a4988-stepper-motor-driver&source=md-export)

## Tags

`stepper-motor`, `motor-driver`, `cnc`, `3d-printing`, `a4988`

## Images

![A4988 Stepper Motor Driver Module](https://nbg1.your-objectstorage.com/openhardware-directory/entities/a4988-stepper-motor-driver/bfb9b2be1ae9.jpg)

---
[View full device page](https://openhardware.directory/devices/a4988-stepper-motor-driver)