DollaTek 28BYJ 48 ULN2003 5V Stepper Motor + Driver Board for Arduino 5pcs

Stepper Motor is a type of electromagnetic device which moves in discrete steps. This has several coils, the center shaft has a series of magnets mounted on it, and the coils surrounding the shaft are alternately given current or not, creating magnetic fields which repulse or attract the magnets on the shaft, causing the motor to rotate. This Unipolar Stepper Motor 28-BYJ48 is provided with five wires and four coils. The center connections of the coils are tied together and usually used as the @@@YNhMyLaD+D8PG35Q7wjD9ktORpqonPBl@@@ connection. They are named unipolar steppers because power always comes in on this one pole. A, B, C, D four-phase LED indicates the status of the stepper motor work.Stepper motor with a standard interface, when used directly pluggable.