28BYJ-48 5V Stepper Motor with ULN2003 Driver Board Module (High-Precision Four-Phase Geared Step Motor Kit)
Introduce absolute rotational precision, micro-stepping accuracy, and high angular holding torque into your automated projects with the industrial-grade 28BYJ-48 5V Stepper Motor and ULN2003 Driver Module Kit. Unlike standard direct-current motors that spin continuously and uncontrollably when power is applied, this geared stepper motor moves in ultra-precise, predictable angular fractions, allowing you to control exact shaft placement down to a single degree.
Driving a multi-phase electromagnetic motor directly from microcontroller pins will immediately destroy your processing core due to heavy current drawing and inductive kickback. This kit resolves that hazard completely by bundling the specialized stepper motor with a dedicated, heavy-duty ULN2003 Darlington transistor array driver board. It serves as the definitive motion-control choice for automated security cameras, motorized window blinds, custom 3D printer feeders, robotic arm joints, and automated industrial positioning rigs.
Key Features
Precision Internal Gear Reduction: Configured with an internal structural gear reduction ratio that exponentially multiplies output shaft twisting force while providing rock-solid positional holding stability.
Heavy-Duty ULN2003 Drive Core: Paired with a high-current transistor driver board that safely isolates low-voltage microcontroller logic from the active power coils of the motor.
Four-Phase LED Feedback Array: Built with four onboard diagnostic light-emitting diodes (labeled A, B, C, D) that blink in real-time to visually confirm exactly which internal motor phase is being energized.
Plug-and-Play Wire Harness: Outfitted with a keyed, polarized five-pin terminal connector that snaps directly from the motor into the driver plate, completely eliminating cross-wiring layout errors.
Standard Four-Wire Control Inputs: Easily managed using just four digital signal wires from any mainstream microcontroller development board, making programming loops exceptionally clean.
Seamless Customization Support: Built around an incredibly versatile structural design template. If your unique automation setup demands customized drive shaft geometries, modified connector harness lengths, or specialized mounting bracket alignments, we can easily customize the physical configuration to match your exact project specifications.
Technical Specifications
Feature | Specification |
Motor Model Architecture | 28BYJ-48 Four-Phase Five-Wire Stepper Configuration |
Driver Board Module Core | High-Current ULN2003 Darlington Transistor Array Platter |
Nominal Operating Voltage | DC 5V Standard (Optimized for common digital logic power grids) |
Internal Step Angle Constant | 5.625 degrees per step stride (operating under 64 steps per rotation parameter) |
Mechanical Gear Reduction Ratio | 1 to 64 nominal reduction multiplier |
Total Conductor Input Lines | 4 Digital Logic Control Lines (Inputs IN1, IN2, IN3, IN4) |
Onboard Diagnostic Layout | 4-Phase Status LEDs for visual monitoring |
Design Flexibility Feature | Custom shaft modifications, unique bracket sizes, and tailored wire looms accepted on demand |
Driver Input Terminal Blueprint
The ULN2003 driver module features a highly logical, pre-labeled interface layout to make wiring into your processing unit fast and straightforward:
IN1, IN2, IN3, IN4 (Logic Inputs): Connect these pins straight to four digital output pins on your microcontroller. Pulsing these inputs in a sequential pattern controls the direction and velocity of the rotation.
Positive Terminal (+): Connect to an external DC 5V positive power supply rail (Highly recommended to power the motor driver independently from your microcontroller core to block noise).
Negative Terminal (-): Connect to the common reference grounding rail or negative terminal of your system power supply.
Common Applications
Automated Surveillance Pan-Tilt Heads: Mount miniature security camera blocks onto the drive shaft to execute slow, completely smooth, and jitter-free horizontal scanning patterns.
Smart Home Motorized Blinds: Integrate inside window header boxes to automatically roll blinds up or down based on light levels or remote commands.
Precision Robotic Arm Articulations: Form the baseline internal drive actuators for multi-axis educational robotic arms to achieve highly repeatable grip orientations.
Multi-Channel Relay Calibration Rigs: Deploy as a micro-indexer inside custom automated diagnostic machinery to mechanically toggle or test hardware sub-assemblies consistently.
Package Includes:
1 x 28BYJ-48 5V Stepper Motor (with Keyed Five-Pin Wire Ribbon)
1 x ULN2003 Stepper Motor Driver Board Module