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Tags: 5V Four Phase Stepper Motor with ULN 2003 Controller
The 28BYJ-48 is a small, cheap, 5 volt geared stepping motor. These stepping motors are widely used to control things like automated blinds, A/C ..
The 28BYJ-48 is a small, cheap, 5 volt geared stepping motor.
These stepping motors are widely used to control things like automated blinds, A/C units and are mass produced. Due to the gear reduction ratio of *approximately* 64:1 it offers decent torque for its size at speeds of about 15 rotations per minute (RPM). Software can be used to accelerate gradually and a higher voltage power source e.g. with 12 volts DC one can get about 25+ RPM.
These little steppers can be purchased together with a small breakout board for the Arduino compatible ULN2003 stepper motor driver.
The low cost and small size makes the 28BYJ-48 an ideal option for small robotic applications, and an excellent introduction to stepper motor control with Arduino.
Motor Type:Unipolar stepper motor
Connection Type:Wire Connection (to the motor controller)
Voltage:5-12 Volts DC
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)
*Delivery outside Nairobi possible on request.