Tiny Unipolar Stepper Motor Driver Using PIC16F72 Micro-Controller and ULN2003

The Board has been designed to drive mini unipolar stepper motor, PIC16F72 Micro-Controller generate required pulse stream and ULN2003 provide extra punch to driver 4 coils of stepper motor. The board has 4 LEDs to display the stepper coil operation. On board preset (Potentiometer) helps to change the speed of stepper Motor. This board is simple board to understand the sequence of pulse to motor.