ULN2003 Stepper Motor Driver Module
The ULN2003 driver board is the classic companion for small unipolar stepper motors such as the 28BYJ-48. Its Darlington transistor array amplifies your microcontroller’s logic signals to switch the motor coils, with built-in flyback diodes protecting your circuit from inductive spikes.
The ULN2003 driver board is the classic companion for small unipolar stepper motors such as the 28BYJ-48. Its Darlington transistor array amplifies your microcontroller’s logic signals to switch the motor coils, with built-in flyback diodes protecting your circuit from inductive spikes.
Four onboard LEDs indicate coil activity in real time, which makes learning stepper sequencing and debugging wiring mistakes much easier. The keyed connector accepts the 28BYJ-48 plug directly, and the IN1-IN4 header pins connect to Arduino, ESP32, Raspberry Pi and other 5V controllers.
Great for: curtain openers, small turntables, clock builds, robotics classes and any project needing quiet, precise low-torque motion.
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