A4988 StepStick Stepper Motor Driver

The A4988 StepStick Stepper Motor Driver is a compact, easy-to-use driver board designed to control bipolar stepper motors with precision and efficiency. Based on the A4988 driver chip, it provides adjustable current control, microstepping capability, and simple step/direction inputs — making it perfect for use with microcontrollers such as Arduino, ESP32, ESP8266, and Raspberry Pi.

Ideal for 3D printers, CNC machines, robotics, and other motion control applications, the A4988 StepStick simplifies stepper motor interfacing while offering smooth, quiet motor operation.

🔹 Key Features

1. Supports full-, half-, quarter-, eighth-, and sixteenth-step microstepping
2. Adjustable current limit via onboard potentiometer for motor protection
3. Compact StepStick form factor that plugs into driver carrier boards
4. Logic supply voltage typically 3.3 V–5 V
5. Motor supply voltage range up to ~35 V
6. Simple STEP and DIR digital inputs for motion control
7. Over-temperature thermal shutdown and short-circuit protection
8. Low-power standby mode

🔹 Applications

1. Precision motion control in 3D printers
2. CNC routers, laser cutters, and milling machines
3. Robotic arms and positioning systems
4. Automated pan/tilt mechanisms
5. DIY and educational electronics projects
6. Embedded systems requiring controlled stepper motor movement