ULN2003A Stepper Motor Driver Module Board Original

The ULN2003A Stepper Motor Driver Module Board uses the ULN Series Darlington transistor array IC in a 4-phase configuration, with 5V input trigger pins, operating on 5V to 12V DC motor supply, measuring 35x32x10mm. This uln2003 motor driver is specifically designed to interface Arduino or other microcontroller digital output pins directly with a 28BYJ-48 stepper motor — the ULN2003A chip’s Darlington pairs amplify the low current Arduino digital pin signal into the higher current needed to energize each of the stepper’s 4 motor coil phases.

Unlike the CCM5D PWM controller covered separately (which controls continuous speed of brushed DC motors), this stepper motor driver module works by sequentially energizing the 4 motor phases in a specific order — each complete sequence advances the motor by a precise number of degrees, enabling accurate position control rather than just variable speed. Per the uln2003 driver datasheet, while the output pins deliver the amplified drive signal to the motor’s corresponding coil wires.

this stepper motor driver price reflects a board designed primarily for the 28BYJ-48 unipolar stepper motor commonly sold alongside it — higher-torque bipolar stepper motors used in CNC or 3D printing applications require a different driver architecture such as an A4988 or DRV8825 instead. Available from StemVolt, this ULN2003A Stepper Motor Driver Module is ideal for learners and makers building precise position control systems and practical 28BYJ-48 stepper motor Arduino projects.

Related Products:

• Checkout DC Motor PWM Speed Controller 

Features:

• 4-phase sequential energization enables precise angular position control
• 5V input trigger pins connect directly to Arduino digital output pins
• 5V–12V motor supply suits standard 28BYJ-48 stepper configurations
• Compact footprint fits tight project enclosures

Pin diagram of ULN2003A Module:

Technical Specifications:

Applications:

• ULN2003A used for Arduino 28BYJ-48 precise angle rotation build
• Camera slider uses stepper motor driver module for India motorized panning
• Smart blind uses stepper motor driver for automated curtain position control
• Robotic arm uses uln2003a driver board for joint angle positioning

Package Includes:

• 1 × ULN2003A Stepper Motor Driver Module