5V 28BYJ-48 Stepper Motor with ULN2003 Driver Board Kit

The 5V 28BYJ-48 Stepper Motor with ULN2003 Driver Board Kit combines a small geared unipolar stepper motor with a dedicated driver interface. It is designed to make controlled motor movement easier to implement in microcontroller-based projects.

The motor uses a 64:1 internal reduction gearbox and a 5-wire winding configuration. The supplied specifications associate the motor with a 5.625°/64 baseline step factor and approximately 4,096 output-shaft steps per revolution when operated using a half-step sequence.

Key Features

• 28BYJ-48 5V geared stepper motor
• ULN2003 driver board included
• 64:1 internal gear reduction
• 5-wire unipolar motor configuration
• 5V DC nominal operating voltage
• Approximately 4,096 steps per output revolution in half-step mode, according to the supplied specification
• Four driver-board LEDs for signal indication
• JST-XHP motor connection
• Double-D output shaft profile
• Suitable for Arduino and other compatible microcontroller projects

How the Kit Works

A microcontroller sends a sequence of control signals to the ULN2003 driver board. The ULN2003 switches the motor's winding phases in the required sequence, allowing the 28BYJ-48 to rotate incrementally.

For smoother movement, the supplied information recommends an 8-step half-step control sequence. The appropriate control method and actual motion characteristics depend on the motor, load, supply, and software implementation.

Applications

This stepper motor kit can be used for:

• Arduino robotics projects
• Small positioning mechanisms
• Camera-panning prototypes
• Miniature automation systems
• Robotic grippers and mechanisms
• Small actuator projects
• Automated valves and dispensers
• Educational mechatronics projects
• DIY CNC and motion-control experiments
• Sensor positioning and sweep mechanisms

Important Notes

• Use an appropriate 5V DC power supply for the motor and driver system.
• The motor coils should not be powered directly from standard microcontroller GPIO pins. Use the included ULN2003 driver board.
• For projects using a microcontroller, a suitable external 5V supply for the motor is recommended rather than relying on the MCU board's regulator.
• Verify all motor and driver connections before applying power. Incorrect wiring can cause malfunction or component damage.
• Avoid mechanically forcing or stalling the geared output shaft, as excessive mechanical load can damage the internal gear mechanism.
• The provided specifications include a 500mA peak winding-current figure; actual current can depend on the drive sequence and operating conditions.
• The listed dimensions and measurements may have minor production or measurement variation.
• Product images are illustrative and may differ slightly from the supplied product.

Package Includes

• 1 × 28BYJ-48 5V Unipolar Stepper Motor with JST Connector
• 1 × ULN2003 Stepper Motor Driver Interface Board