A4988 Stepper Motor Driver StepStick Module With Heat Sink
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A4988 Stepper Motor Driver StepStick Module With Heat Sink

  • $4.99

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A4988 Stepper Motor Driver StepStick Module With Heat Sink.

*Important. Please note this is currently an Indent item. Delivery is typically 10~15 working days. Learn more at www.techexpress.co.nz/indent

The A4988 Stepper Motor Driver is a complete solution for controlling bipolar stepper motors in your New Zealand DIY projects. This user-friendly package combines the popular A4988 stepper motor driver chip with a convenient StepStick module for easy integration. The included heat sink ensures reliable performance by dissipating heat during operation.

Here's what makes the A4988 Stepper Motor Driver perfect for NZ makers:

Control with Precision: Drive your stepper motors with accuracy, ideal for 3D printers, CNC machines, robotics, and more.

Simple to Use: The StepStick module features a straightforward interface for easy control, suitable for beginners and experienced hobbyists alike.

Smooth Movement: Microstepping technology allows for smoother and more precise motor control compared to traditional full-step operation.

Power You Can Adjust: Fine-tune the power delivered to your motor with the adjustable current control for optimal performance.

Built for NZ Projects: The A4988 driver is compatible with a wide range of bipolar stepper motors commonly found in New Zealand.

Compact Design: The StepStick module's small size makes it ideal for projects with limited space constraints.

Cool Operation: The included heat sink effectively dissipates heat, ensuring reliable performance in New Zealand's climate.

Open-Source Friendly: The A4988 driver and StepStick design are well-supported by a large online community, providing access to resources and project inspiration.


Sold as: Each.
Internal UVLO.
Condition: New.
Packaging: Bulk.
Size (mm): 20x 15.
Low RDS (On) Output.
Ground fault protection.
Cross-current protection.
Thermal shutdown circuitry.
Load short-circuit protection.
Mix with slow current decay modes.
3.3 and 5 V compatible logic supply.
Synchronous rectification for low power dissipation.
Automatic current decay mode detection / selection.
Optional step five modes: full, 1/2, 1/4, 1/8 and 1/16.
Product Type: A4988 Stepper Motor Driver (with Heat Sink).
Product Category: Industrial & Manufacturing > Electrical Equipment & Supplies > Motors & Drives > Stepper Motors & Drives.

Package includes:

1x Heatsink.
1x A4988 Stepper Motor Driver Module.

*The image is for illustrative purposes only. Due to camera, lighting, monitor and manufacturing variations, colours may vary. The A4988 module may require some assembly. Soldering the included header pins to the PCB (printed circuit board) might be necessary for functionality. Soldering experience is recommended.

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Warranty & Returns:

14 Day 'change of mind' return in unused condition for a refund less shipping fees.
1 Year return to base refund or replace guarantee.

We welcome & answer all questions.

Installation Hints, Tips and Troubleshooting:

The A4988 Stepper Motor Driver StepStick Module with Heat Sink is a popular choice for controlling bipolar stepper motors in various projects throughout New Zealand. This guide provides step-by-step installation hints, helpful tips, and common troubleshooting steps to ensure a smooth experience.

Video: 'How To Control a Stepper Motor with A4988 Driver and Arduino'.

Getting Started (Optional Assembly):

  • Soldering Header Pins (For Beginners): The StepStick module might require soldering the included header pins onto the PCB for connection. If you're new to soldering, consider watching online tutorials or seeking help from a friend with experience.
  • Soldering Tips (For Experienced Users):
    • Use a well-ventilated workspace and appropriate safety gear (eye protection, etc.).
    • Ensure a clean soldering iron tip and lead-free solder.
    • Heat the pad on the PCB and pin leg simultaneously, then apply solder to create a strong, clean joint.
    • Avoid overheating components on the PCB.


  1. Identify Connections: Familiarize yourself with the StepStick module's pin labels. A pinout diagram is usually provided by the manufacturer or retailer. Common connections include:

    • Motor A/B/C/D: These connect to the corresponding coils of your bipolar stepper motor.
    • Power (VCC, GND): These provide power to the driver chip. Double-check the voltage requirements of your specific driver and motor.
    • Control Pins (PUL, DIR, MS1/MS2, Reset): These control the stepper motor's movement (pulse signal, direction, microstepping, reset).
  2. Connect the Motor: Carefully match the motor wires to the corresponding A/B/C/D pins on the StepStick module, following the motor's wiring diagram.

  3. Power Up: Connect the power supply (VCC and GND) to the StepStick module, ensuring the voltage matches the driver and motor specifications. Always double-check polarity!

  4. Control Signal Connection: Connect the control pins (PUL, DIR, MS1/MS2, Reset) to your microcontroller or control board based on your project's requirements and chosen control method.

Tips for Success:

  • Double-Check Connections: A common mistake is incorrect wiring. Triple-check all connections before powering on the module.
  • Start Simple: For beginners, begin with a basic control program or manual control to test the motor's functionality before integrating it into a complex project.
  • Heat Sink Matters: The heat sink helps dissipate heat generated during operation. Ensure proper thermal management, especially if using the driver for extended periods or with high-current applications.
  • Consult Resources: Many online resources are available in New Zealand, including tutorials, project examples, and forums related to the A4888 driver and StepStick modules. Utilize these resources for troubleshooting and project inspiration.


  • Motor Not Running:
    • Verify correct wiring between the motor and StepStick module.
    • Check the power supply voltage and ensure it matches the driver and motor requirements.
    • Ensure your control program or circuit is sending the correct pulse and direction signals to the driver.
  • Motor Stuttering/Uneven Movement:
    • Adjust the microstepping settings (MS1/MS2 pins) on the StepStick module to achieve smoother movement. Refer to the driver's datasheet for details.
    • Check for loose connections or faulty components.
  • Driver Overheating:
    • Ensure proper heat sink contact and sufficient airflow around the module.
    • Reduce the motor current or duty cycle if the application allows.

By following these guidelines and utilizing online resources readily available in New Zealand, you can successfully install, operate, and troubleshoot your A4988 Stepper Motor Driver Module. Remember, a little planning and attention to detail can go a long way in bringing your project to life!

Installation Hints, Tips and Troubleshooting:



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