A4988 Stepper Motor Driver Module

Description

A4988 Stepper Motor Driver Module

Control bipolar stepper motors in CNC machines, 3D printers, pen plotters, and robotics projects. The A4988 features adjustable current limiting and selectable microstepping up to 1/16 step, with a simple STEP/DIR control interface.

**Key Specifications**

* Motor supply voltage: 8–35V DC
* Logic supply voltage: 3–5.5V
* Step modes: Full, 1/2, 1/4, 1/8, and 1/16
* Adjustable motor current limit
* Thermal shutdown and overcurrent protection
* Suitable for compatible bipolar stepper motors, including appropriately rated NEMA17 models

**Current Rating**

Up to 2A per coil with sufficient cooling, subject to the carrier board’s design. Actual continuous current depends on the module, heatsink, and airflow.

**Package Includes**

* 1 × A4988 Stepper Motor Driver Module

**Installation Note**

Set the current limit to match your motor before use. Check module orientation and wiring, and always disconnect power before connecting or disconnecting the motor.