28BYJ-48 Stepper Motor 5V with ULN2003 Driver Module
The 28BYJ-48 is a small, cheap, 5V geared stepping motors.
These stepping motors are apparently widely used to control things like automated blinds, A/C units and are mass produced.
Due to the gear reduction ratio of 64:1 it offers decent torque for its size at speeds of about 15 rotations per minute (RPM).
With some software “trickery” to accelerate gradually and a higher voltage power source (I tested them with 12 volts DC).
These little steppers can be purchased together with a small breakout board for the Arduino compatible ULN2003 stepper motor driver.
|Motor Type||Unipolar stepper motor.|
|Connection Type||5 Wire Connection (to the motor controller).|
|Step Mode||Half-step mode recommended (8 step control signal sequence).|
Half-step mode: 8 step control signal sequence (recommended) 5.625 degrees per step / 64 steps per one revolution of the internal motor shaft.
Full Step mode: 4 step control signal sequence 11.25 degrees per step / 32 steps per one revolution of the internal motor shaft.
|Gear Ratio||Manufacturer specifies 64:1.|
|Wiring to The ULN2003 Controller||A (Blue), B (Pink), C (Yellow), D (Orange), E (Red, Mid-Point).|
1 x 28BYJ-48 Stepper Motor 5V.
1 x ULN2003 Driver Module.