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The A4988 Stepper Motor Driver is a microstepping driver designed for precise control of bipolar stepper motors. With adjustable current control and microstepping capabilities, it is perfect for CNC machines, 3D printers, and robotics projects. Its compact design and easy-to-use interface make it a popular choice for hobbyists and professionals alike.
8 in stock
The A4988 Stepper Motor Driver is a versatile and compact solution for driving bipolar stepper motors with fine-grained control. With microstepping support up to 1/16 step, adjustable current limiting, and thermal protection, it’s an ideal choice for your CNC, 3D printer, or robotic system.
🔬 High-Precision Microstepping
Supports full, half, quarter, eighth, and sixteenth step modes for smooth and accurate motor control.
⚡ Adjustable Current Control
Fine-tune motor current using the onboard potentiometer to prevent overheating and ensure optimal performance.
🛡️ Built-In Protection
Integrated thermal shutdown, over-current, and under-voltage lockout keep your system safe.
🤖 Microcontroller Friendly
Compatible with Arduino, Raspberry Pi, ESP32, and other development boards via simple STEP and DIR pin interfaces.
🧰 Drop-in Replacement
Compatible footprint with the Pololu A4988—ideal for RAMPS boards and RepRap setups.
Parameter | Value |
---|---|
Model | A4988 |
Motor Type | Bipolar Stepper Motors |
Operating Voltage | 8V – 35V |
Max Current Output | 2A per coil (with heat sink) |
Microstepping Modes | Full, 1/2, 1/4, 1/8, 1/16 |
Logic Voltage | 3V – 5.5V |
Interface Pins | STEP, DIR, ENABLE, MS1–MS3, RESET, SLEEP |
Dimensions | 20mm × 15mm × 10mm |
🛠️ CNC Machines: Achieve precise X/Y/Z axis movement
🖨️ 3D Printers: Control extruders and bed positioning
🤖 Robotics: Drive linear actuators and robotic arms
🎮 DIY Projects: Camera sliders, plotters, and engraving machines
1 × A4988 Stepper Motor Driver Module
1 × 16-Pin Male Header (Unassembled)
Optional: Add a heat sink for continuous high-current operation.
🌀 Control your stepper motors like a pro!
Compact, powerful, and easy to use—the A4988 gives you full control over your projects. Add it to your toolkit today and bring your motion systems to life with smooth precision! 🚀
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