//www.elegoo.com
//2016.12.12

/*
Stepper Motor Control – one revolution

This program drives a unipolar or bipolar stepper motor.
The motor is attached to digital pins 8 – 11 of the Arduino.

The motor should revolve one revolution in one direction, then
one revolution in the other direction.

*/

include

const int stepsPerRevolution = 1500; // change this to fit the number of steps per revolution

// initialize the stepper library on pins 8 through 11:
Stepper myStepper(stepsPerRevolution, 8, 10, 9, 11);

void setup() {
// set the speed at 20 rpm:
myStepper.setSpeed(20);
// initialize the serial port:
Serial.begin(9600);
}

void loop() {
// step one revolution in one direction:
Serial.println(“clockwise”);
myStepper.step(stepsPerRevolution);
delay(500);

// step one revolution in the other direction:
Serial.println(“counterclockwise”);
myStepper.step(-stepsPerRevolution);
delay(500);
}