A4988 stepper motor driver

The A4988 Stepper Motor Driver is a microstepping driver for controlling bipolar stepper motors. It features adjustable current limiting, over-current protection, and five different microstep resolutions (down to 1/16-step). It operates from 8V to 35V and can deliver up to 2A per coil, making it ideal for 3D printers, CNC machines, and other applications requiring precise stepper motor control.

Key Features:

• Adjustable current control
• Over-temperature thermal shutdown, under-voltage lockout, and crossover-current protection
• Five microstep resolutions: full-step, half-step, quarter-step, eighth-step, and sixteenth-step
• Simple step and direction control interface
• Compatible with bipolar stepper motors

Technical Specifications:

• Motor Voltage: 8V to 35V
• Current per Phase: Up to 2A (with sufficient cooling)
• Microstepping: Full, 1/2, 1/4, 1/8, 1/16
• Logic Voltage: 3.3V or 5V
• Dimensions: 20 x 15 x 10 mm
• Protection: Over-temperature, over-current, and under-voltage lockout

Applications:

• 3D printers
• CNC machines
• Robotics
• Automated machinery
• Precise positioning systems

Usage:

1. Connect the Driver: Connect the stepper motor to the A4988 driver, ensuring correct wiring for the motor coils.
2. Power Supply: Provide appropriate motor voltage (8V to 35V) to the driver.
3. Control Interface: Connect the step and direction control pins to a microcontroller or other control system.
4. Adjust Current: Set the current limit by adjusting the potentiometer on the driver.
5. Programming: Use the microcontroller to send step and direction signals to control the stepper motor.

Caution:

• Ensure proper heat dissipation to avoid overheating.
• Double-check wiring connections to prevent damage to the driver and motor.
• Do not exceed the specified voltage and current limits.

Datasheet: For more detailed technical information, refer to the A4988 Stepper Motor Driver Datasheet.