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ARDUINO SOURCE CODE 

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/* 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.

Created 11 Mar. 2007 Modified 30 Nov. 2009 by Tom Igoe

*/

#include

const int stepsPerRevolution = 360; // change this to fit the number of steps per revolution // for your motor

// initialize the stepper library on pins 8 through 11: Stepper myStepper(stepsPerRevolution, 6,7,12,13);

void setup() { // set the speed at 60 rpm: myStepper.setSpeed(3); // initialize the serial port: Serial.begin(9600); }

void loop() { Serial.println("counterclockwise"); myStepper.step(-stepsPerRevolution); digitalWrite (6,LOW) ; digitalWrite (7,LOW) ; digitalWrite (12,LOW) ; digitalWrite (13,LOW) ; delay(1000); Serial.println("clockwise"); myStepper.step(stepsPerRevolution); digitalWrite (6,LOW) ; digitalWrite (7,LOW) ; digitalWrite (12,LOW) ; digitalWrite (13,LOW) ; delay(1000);

}