A4988 Stepper Motor Driver Module Shiled
70.00 EGP
A high-performance stepper motor driver designed to control bipolar stepper motors like NEMA 17. Featuring adjustable current limiting, over-temperature thermal shutdown, and five different microstep resolutions. Includes a free aluminum heat sink for stable operation.
In stock
Product Overview
The A4988 is a complete microstepping motor driver with a built-in translator for easy operation. It allows you to control a bipolar stepper motor using only two pins from your controller: one for controlling the step direction and the other for the steps. This module is the “gold standard” for DIY 3D printers, CNC machines, and robotic arms.
Arduino Wiring & Connections

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VMOT / GND: External Power (8V – 35V) for the motor.
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VDD / GND: Arduino 5V / GND for logic.
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STEP: Arduino Digital Pin (controls speed).
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DIR: Arduino Digital Pin (controls direction).
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1A, 1B, 2A, 2B: Connect to Stepper Motor coils.
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ENABLE: Connect to GND to turn the driver on.
Technical Specifications
| Feature | Specification |
| Motor Supply Voltage | 8V to 35V |
| Logic Voltage | 3.3V to 5.0V |
| Output Current | Up to 2A (with cooling) |
| Microstep Resolutions | Full, 1/2, 1/4, 1/8, and 1/16 |
| Protection | Short-to-ground, Shorted-load, Thermal Shutdown |
| Interface | Simple STEP and DIRECTION pins |
Key Features
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Microstepping Support: Achieve smooth and precise motion with up to 1/16 step resolution.
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Adjustable Current: Features an onboard potentiometer to set the maximum current output to protect your motor.
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Automatic Current Decay Mode: Automatically selects the correct current decay mode (Fast or Slow).
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Heat Management: Comes with a self-adhesive heat sink to prevent overheating during high-load tasks.
Downloads & Resources
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AccelStepper Arduino Library – Highly recommended for smooth motor control.
You can see the rest of our available 3D printing and CNC parts from here: 3D Printer & CNC | Pro Tronix

Shipping & Delivery Policy
At Protronix, we ensure your orders are delivered safely and efficiently through multiple reliable channels tailored to your needs.
Our Delivery Methods
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Egypt Post: Standard shipping to all governorates across Egypt via the National Postal Authority.
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Uber Scooter: Fast, same-day express delivery for local orders within supported urban areas.
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Store Pickup: You can skip the shipping fees by collecting your order directly from our main branch.




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