Stepper Motor 28BYJ-48 and ULN2003 Stepper Motor Driver

Premium precision motion control components from The Engineer Store, Bengaluru. Authentic quality, fast delivery, expert support.

Product Overview

The 28BYJ-48 Stepper Motor paired with the ULN2003 Driver Module is the industry-standard solution for precise rotational control in electronics projects. This complete motor control system delivers reliable performance for automation, robotics, and embedded applications.

Motor Specifications (28BYJ-48)

• Type: Unipolar Stepper Motor
• Voltage: 5V DC
• Step Angle: 5.625 degrees (64 steps per revolution)
• Torque: 34.3 mNm (holding)
• Speed: 15 RPM (typical)
• Coil Resistance: 50Ohm per phase
• Dimensions: 28mm x 28mm x 24mm
• Weight: 30g

Driver Specifications (ULN2003)

• Type: Darlington Transistor Array
• Channels: 7 independent channels
• Output Current: 500mA per channel
• Peak Current: 600mA per channel
• Voltage Rating: 50V maximum
• Package: DIP-16 / Module with pin headers
• Mounting: PCB module with connector pins

Complete Package Contents

1x Stepper Motor 28BYJ-48

1x ULN2003 Driver Module (pre-soldered with pin headers)

Connecting Wires (4-pin stepper connector)

Quick Start Guide with wiring diagrams

Technical Documentation (datasheets & sample code)

24/7 Email & WhatsApp Support

Key Features

Motor Features

• Precision Control: 64-step resolution for smooth, accurate movement
• Compact Design: Ideal for space-constrained applications
• Low Power: 5V operation compatible with microcontroller logic
• Reliable: Proven design with millions deployed globally
• Quiet Operation: Smooth stepping motion with minimal noise

Driver Features

• Easy Integration: Direct compatibility with Arduino, Raspberry Pi, PIC microcontrollers
• High Current Capacity: Handles full motor load requirements
• Protection Diodes: Built-in flyback diodes prevent voltage spikes
• Compact Module: Pre-assembled and ready to use
• Pin Headers: Standard 0.1" spacing for breadboard compatibility

Why Choose Our Product?

100% Authentic Components - Sourced from authorized distributors with verification certificates

Quality Assured - Tested before dispatch to ensure functionality

7-day warranty on manufacturing defects - Full manufacturer warranty covering all defects

Fast Shipping - 1-5 day shipping, 7-8 day delivery across India from Bengaluru warehouse

Expert Support - 24/7 technical assistance via email and WhatsApp

Competitive Pricing - Best value without compromising quality

Bulk Discounts - Special pricing for orders of 10+ units

Applications & Project Ideas

Hobbyist Projects

• Arduino-based automation systems
• DIY robotics and robot arms
• Automated camera sliders and gimbals
• 3D printer extruders
• CNC plotting machines

Educational Use

• Embedded systems learning
• Microcontroller training programs
• Robotics competitions and clubs
• IoT and automation courses
• Maker labs and hackathons

Professional Applications

• Industrial automation systems
• Precision positioning equipment
• Automated manufacturing setups
• Laboratory instrumentation
• Smart home automation

Specific Examples

• Door Automation: Automated door openers and locks
• Dispensing Systems: Precise material dispensing
• Tracking Systems: Solar panel and antenna tracking
• Valve Control: Automated valve actuation
• Display Systems: Moving displays and signage

How It Works

Motor Operation:

The 28BYJ-48 uses unipolar stepping technology with 4 coils. By energizing coils in sequence, the motor rotates in precise 5.625 degrees increments.

Driver Function:

The ULN2003 module amplifies low-current microcontroller signals (5V, ~20mA) to high-current motor drive signals (500mA+), enabling full motor control.

Connection:

• Motor connects to ULN2003 via 4-pin connector
• Driver connects to microcontroller via 4 GPIO pins
• Simple digital logic controls rotation direction and speed

Technical Specifications Summary

Specification

28BYJ-48 Motor

ULN2003 Driver |

Voltage

5V DC

50V max (5V typical) |

Current

100mA (typical)

500mA per channel |

Step Angle

5.625 degrees

- |

Steps/Rev

64

- |

Torque

34.3 mNm

- |

Interface

4-pin connector

4-pin GPIO |

Operating Temp

0-55 degreesC

0-70 degreesC |

Wiring & Compatibility

Microcontroller Compatibility:

• Arduino (Uno, Nano, Mega, Pro Mini)
• Raspberry Pi (GPIO pins)
• NodeMCU / ESP8266 / ESP32
• PIC Microcontrollers
• STM32 boards
• Any 5V microcontroller with GPIO

Connection Diagram:

```

Microcontroller GPIO Pins -> ULN2003 Input Pins

ULN2003 Module

Motor Output Pins -> 28BYJ-48 Motor

```

Getting Started

Step 1: Connections

• Connect 4 GPIO pins from your microcontroller to the ULN2003 input pins
• Connect the stepper motor

Frequently Asked Questions

Are these components 100% authentic?

Yes, absolutely. All components are sourced from authorized distributors and come with authentication verification. We maintain strict quality control standards.

What warranty coverage is provided?

7-day warranty on manufacturing defects. If any unit fails due to manufacturing issues within this period, we offer free replacement or full refund.

How quickly will I receive my order?

Products ship within 1-5 days from our Bengaluru warehouse. Delivery is typically completed within 7-8 days to most locations across India.

Is technical support available?

Yes! Our expert team provides 24/7 technical support via email and WhatsApp. We'll help with circuit design, troubleshooting, and application guidance.

What's your return policy?

We offer 7-day returns on manufacturing defects with full refund or replacement. Returns are applicable only for manufacturing defaults, not user damage.

Are bulk discounts available?

Yes! Orders of 10+ units qualify for wholesale pricing. Contact us via WhatsApp or email for a custom quote.

Can I use these in my commercial product?

Absolutely. These components are suitable for both commercial and industrial applications. Contact us for bulk pricing and certification requirements.

Buy Stepper Motor 28BYJ-48 and ULN2003 Stepper Motor Driver Online in India

Purchase the Stepper Motor 28BYJ-48 and ULN2003 Stepper Motor Driver online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Stepper Motor 28BYJ-48 and ULN2003 Stepper Motor Driver with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.

Looking to buy Stepper Motor 28BYJ-48 and ULN2003 Stepper Motor Driver at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.