Stepper motor is a type of motors that moves in precise steps.
The ULN2003 driver is an interface between the microcontroller and the stepper motor. UNL2003 takes the command from the microcontroller and supply the motor with the needed power pulse to make the motor moves the required step.
Operating Voltage: 5V
Step angle: 5.625° x 1/64
Reduction ratio: 1/64
Dimensions: 4.2 cm x1.9 cm
A, B, C, D four phase LED to indicate the stepping state