From Micro Ohm's description

ULN2003 Stepper Driver Module The ULN2003 Stepper Driver Module is a compact and efficient driver board designed for controlling unipolar stepper motors, particularly the popular 28BYJ-48 stepper motor . Featuring the ULN2003 Darlington transistor array IC , this module allows easy interfacing between low-power microcontrollers (such as Arduino, ESP32, or Raspberry Pi) and stepper motors requiring higher current handling. . Features Based on ULN2003A Darlington transistor array . Designed for 5V unipolar stepper motors . Simple 4-phase stepper control . Equipped with status LEDs for each input channel. Standard IN1–IN4 header for microcontroller connection. Separate stepper motor connector for 28BYJ-48. Compact PCB with mounting holes. . Technical Specifications Driver IC: ULN2003A Input Voltage: 5V DC Output Current per Channel: up to 500mA (peak) Number of Channels: 4 (for 4-phase stepper motor) Connector Type: JST/XH for motor, male header pins for logic Board Dimensions: approx. 35 × 32 mm (assumed standard size) Status Indicators: 4 LEDs (for IN1–IN4) . Pinout and Dimensions IN1–IN4: Control pins from microcontroller. VCC & GND: Power supply (typically 5V). Motor Connector: 5-pin JST connector for 28BYJ-48 motor. LED Indicators: Show activity of each coil phase. . Typical Applications Driving 28BYJ-48 stepper motors in automation projects. Robotics and small mechatronics. Teaching kits for learning stepper motor control. DIY CNC or camera slider projects. . How to Use with Arduino / Microcontrollers Connect the 28BYJ-48 motor to the module using the 5-pin JST connector. Wire IN1–IN4 pins to Arduino digital pins. Supply 5V to the VCC and GND pins. Use an Arduino library (such as Stepper.h ) or custom code to control step sequence. (🔗 Reference Guide: How to use Stepper Motor and ULN2003 Driver ) ULN2003 مديول للتحكم بالمحركات الخطوية تُعتبر وحدة ULN2003 Stepper Driver لوحة مدمجة وفعّالة للتحكم بالمحركات الخطوية من النوع أحادي القطب، وخاصة المحرك الشهير 28BYJ-48 . تعتمد الوحدة على دائرة ULN2003A Darlington Array مما يجعلها مثالية لربط المتحكمات الدقيقة منخفضة القدرة (مثل Arduino أو ESP32 أو Raspberry Pi) بالمحركات التي تحتاج تيار أعلى. . المميزات تعتمد على دائرة ULN2003A. مناسبة للمحركات الخطوية 5V. تحكم رباعي المراحل (4-phase). مزودة بمؤشرات LED لكل مدخل. رؤوس توصيل قياسية IN1–IN4. موصل منفصل للمحرك 28BYJ-48. لوحة صغيرة الحجم مع فتحات تثبيت. . المواصفات الفنية IC القيادة: ULN2003A جهد الدخل: 5V تيار الخرج لكل قناة: حتى 500mA (حد أقصى) عدد القنوات: 4 موصل المحرك: 5-pin JST أبعاد اللوحة: تقريبًا 35 × 32 مم (افتراضي) المؤشرات: 4 لمبات LED لعرض نشاط الملفات . مخطط الأرجل والأبعاد IN1–IN4: مدخلات إشارات من المتحكم. VCC & GND: مصدر التغذية 5V. موصل المحرك: 5 أطراف JST مخصص للمحرك. LED Indicators: تعرض عمل الملفات. . تطبيقات نموذجية تشغيل محركات 28BYJ-48 في المشاريع التعليمية. الروبوتات والأنظمة الميكاترونية الصغيرة. مجموعات التدريب على التحكم بالمحركات. مشاريع DIY مثل أنظمة التتبع أو منصات الكاميرا. . طريقة الاستخدام مع أردوينو / المتحكمات الدقيقة توصيل المحرك 28BYJ-48 بمنفذ JST الخماسي. ربط IN1–IN4 بأطراف رقمية في الأردوينو. تغذية اللوحة بجهد 5V. استخدام مكتبة Stepper أو كود مخصص للتحكم بالتتابع. (🔗 المرجع: شرح استخدام المحرك مع ULN2003 )

From Makers Electronics's description

28BYJ-48 Stepper Motor 5V with ULN2003 Driver Module The Stepper Motor 5V with ULN2003 is a compact motion device combined with a matched driver module for easy and reliable integration in microcontroller and robotics projects. Typically based on the popular 28BYJ-48 unipolar stepper motor, this kit includes a dedicated ULN2003 Darlington transistor array driver board that amplifies control signals to safely drive the motor coils. Operating at 5 VDC, it delivers finely stepped motion with a geared reduction for increased torque and positional precision. This combination simplifies interfacing with Arduino, Raspberry Pi, ESP32, and similar development platforms, allowing for accurate control of rotation, speed, and direction in automation, robotics, and DIY applications. Features Includes 5V unipolar stepper motor with geared output for enhanced torque. ULN2003 driver board with four Darlington transistor channels for coil driving. Four LED indicators on driver board show coil activation status. Standard 5-wire motor interface for plug-and-play connection. Easy microcontroller integration (Arduino, Raspberry Pi, ESP series). Compact and lightweight module suitable for prototyping and education. Specifications Motor Type Unipolar stepper motor. Connection Type 5 Wire Connection (to the motor controller). Voltage 5-12V DC. Frequency 100 Hz. Step Mode Half-step mode recommended (8 step control signal sequence). Step Angle Half-step mode: 8 step control signal sequence (recommended) 5.625 degrees per step / 64 steps per one revolution of the internal motor shaft. Full Step mode: 4 step control signal sequence 11.25 degrees per step / 32 steps per one revolution of the internal motor shaft. Gear Ratio Manufacturer specifies 64:1 . Wiring to The ULN2003 Controller A (Blue), B (Pink), C (Yellow), D (Orange), E (Red, Mid-Point). Weight 44g. Package Included 1 x 28BYJ-48 Stepper Motor 5V. Applications Stepper motor control in Arduino and microcontroller projects. Small robotics and automated mechanisms. CNC and positioning systems at hobby scale. Teaching and prototyping motion control. DIY electronics and embedded system projects. Package Contents 1x 28BYJ-48 stepper motor 5V. 1x ULN2003 driver module.

From Most Electronic's description

The ULN2003 Stepper Motor Driver Board is a reliable and easy-to-use driver module designed to control unipolar stepper motors , such as the 28BYJ-48 . It is perfect for Arduino, Raspberry Pi, and other microcontroller projects that require precise step control. This board is built around the ULN2003 Darlington transistor array , which allows it to handle higher current loads safely. In addition, it includes four output channels to drive the four coils of a stepper motor, ensuring smooth and accurate motion. Because it has LED indicators for each channel , you can easily monitor the motor’s activity during operation. Also, it includes a convenient 5-pin header , therefore connecting it to a microcontroller is quick and simple. Key Features: Driver IC: ULN2003 Darlington array Supports unipolar stepper motors (e.g., 28BYJ-48) Input Voltage: 5V–12V DC 4 output channels for coil control LED indicators for each output step Easy-to-use 5-pin control interface Compatible with Arduino, Raspberry Pi, STM32 , and other MCUs Compact and ready-to-use module Perfect for students, hobbyists, and engineers, the ULN2003 Stepper Motor Driver Board is the ideal choice for smooth, precise, and affordable stepper motor control.

From Future Electronics Egypt's description

ULN2003 Stepper Motor Driver Board is use the ULN2003 DARLINGTON ARRAYS to drive the 4-phase 5-wire stepper motor (5v-12v), up to 0.5A. It's easy to use Arduino or other development platform to drive the stepper motor by this diver board. The ULN2003A contains seven darlington transistor drivers and is somewhat like having seven TIP120 transistors all in one package. The ULN2003A can pass up to 500 mA per channel. To control the stepper, apply voltage to each of the coils in a specific sequence. For detailed information on how to use the stepper motor driver and arduino code, please click here For ULN2003 datasheet, please click here For stepper motor basics, please click here