unl2003 stepper driver

ULN2003 Stepper Motor Driver Board

This compact and easy-to-use stepper motor driver board features the ULN2003 Darlington transistor array. Designed primarily to drive 4-phase, 5-wire stepper motors (like the popular 28BYJ-48), it provides a simple interface for microcontrollers like Arduino, Raspberry Pi, and ESP32. The board includes onboard LEDs to indicate the status of the four control channels, making debugging and monitoring highly visual and straightforward.

Key Specifications:

• Operating Voltage: 5V to 12V DC (IC supports up to 50V max)
• Maximum Current: 500mA peak per channel
• Logic Compatibility: 3.3V and 5V compatible
• Interface: 4-pin logic input (IN1, IN2, IN3, IN4)
• Features: Onboard status LEDs for step indication and standard XH-5P socket for easy motor connection.
• Common Use Cases: Driving 28BYJ-48 stepper motors, DIY Arduino projects, automated blinds, basic robotics, and low-torque motorized mechanisms.