28BYJ-48 DC 5V Stepper Motor

The 28BYJ-48 DC 5V Stepper Motor is one of the most popular choices for low-voltage, high-precision motor control in DIY electronics, automation systems, and microcontroller projects. Engineered with an internal gear reduction (64:1) and four-phase coil structure, this motor produces strong torque at low speeds while maintaining excellent positional accuracy.

With its small size, low power requirements, and reliable operation, it is a go-to solution for Arduino-based systems, Raspberry Pi projects, and custom robotic builds. Often used in camera sliders, servo control, smart locks, and sensor positioning systems, this stepper motor provides 2048 steps per revolution after gear reduction, allowing extremely fine motion control.

Easily controlled via ULN2003 Driver Board, this motor is suitable for educational kits, automation miniatures, and IoT prototypes. Discover more motor and control components in our Electronics Components and Arduino and Accessories categories.

Key Features:

• Voltage Rating: 5V DC – safe for USB or battery-powered microcontrollers

• Reduction Ratio: 1/64 – increases torque while slowing output speed for accurate control

• Steps Per Revolution: 2048 (with gear reduction) – ultra-fine resolution for precise movement

• Type: Unipolar, 4-phase stepper – simple control via ULN2003 driver

• Low Current Draw: Ideal for compact, energy-efficient designs

• Plastic Gears with Adequate Strength: Suitable for light mechanical loads

• Standard 5-wire Interface: Easily connects to common driver modules and development boards

Typical Applications:

• Arduino & Raspberry Pi Projects:
  Widely used in Arduino and Raspberry Pi based control systems where fine positioning and low power consumption are required.

• Robotic Control Arms & Platforms:
  Controls rotational or linear motion in mini robotic arms, rotating bases, and smart servo applications.

• Smart Home Automation:
  Used in smart curtains, automatic door locks, and environmental control vents.

• Camera Panning/Slider Systems:
  Offers smooth rotational movement for DIY camera sliders or pan-tilt camera mounts.

• Educational and Research Kits:
  Ideal for beginners, students, and engineers exploring the basics of stepper motors, gears, and motor control logic.

• Sensor Positioning & Small Actuators:
  Drives rotary actuators in micro mechanical systems like sensor tilts or analog dial controllers.

Details/ Specificatoins:

1. Model : 28BYJ-48
2. Number of Phase : 4
3. Speed Variation Ratio : 1/64
4. Stride Angle : 5.625° /64
5. Rated voltage : DC [5v – 12v]
6. DC resistance : 5v: 60Ω±7%(25℃); 12v: 130Ω±7%(25℃)
7. Frequency : 100Hz
8. Idle In-traction Frequency : > 600Hz
9. Idle Out-traction Frequency : > 1000Hz
10. In-traction Torque >34.3mN.m(120Hz)
11. Self-positioning Torque : 5v: >29.3mN.m; 12v: >42.1mN.m
12. Friction torque : 600-1200 gf.cm
13. Pull in torque : 300 gf.cm
14. Insulated resistance >10MΩ(500V)
15. Insulated electricity power : 600VAC/1mA/1s
16. Insulation grade : A
17. Rise in Temperature <40K(120Hz)
18. Noise <35dB(120Hz,No load,10cm)

Package Includes:

• 1 X Stepper motor
• 1 X uln2003 driver

Precautions:

• Use with a ULN2003 driver board for correct phase sequencing

• Do not exceed 5V to avoid overheating or damage

• Avoid mechanical overloading – plastic gears may strip under excessive torque

• Always power down the system before making wiring changes

• Secure the motor to avoid vibration affecting accuracy

  YouTube Tutorial:

  28BYJ-48 Stepper Motor + ULN2003 + Arduino Complete Guide

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