The 28BYJ-48 5V Stepper Motor with ULN2003 Driver Board is a compact, geared stepper motor and driver combo used for precise position control in robotics, camera sliders, and automated valves. The unipolar motor pairs with a ULN2003 Darlington driver board for simple 4-wire control from any microcontroller.
Key features:
- Driver IC: Built around the ULN2003 Darlington transistor array, which switches the four motor coils directly from 5V logic-level signals.
- Geared Precision: An internal 1:64 gear reduction delivers a fine effective step angle for smooth, accurate positioning.
- Step Resolution: Produces 4096 steps per output shaft revolution in half-step mode for precise motion control.
- Keyed Connector: The motor plugs directly into the driver board via a 5-pin JST connector, eliminating wiring mistakes.
- Onboard Indicator LEDs: Four LEDs show the active coil sequence, making debugging and testing straightforward.
- Arduino Compatible: Works out of the box with the Arduino Stepper library and common CNC and robotics firmware.
This combo is a popular starting point for beginners exploring stepper motor control, offering reliable low-speed torque for light-duty automation projects.
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