// Define pin connections & motor's steps per revolution
const int dirPin = 4;				
const int stepPin = 5;
const int stepsPerRevolution = 200;	
const int sensor = 8;		//pir pin
int val = 0;						// variable holding if the pin is high or low
int state = LOW;  			// variable holding the state of the sensor - triggered or not.

void setup()
{
	// Declare pins as Outputs
	pinMode(stepPin, OUTPUT);
	pinMode(dirPin, OUTPUT);
	pinMode(sensor, INPUT); 
}

void loop()

{
	
				// Set motor direction clockwise
  val = digitalRead(sensor);   		// read sensor value from the PIR into VAL variable
	
if (val == HIGH) {    
	       						StartMotor();
									}

else 						{
      							StopMotor();
     						}
}

void StartMotor()
{
		digitalWrite(dirPin, HIGH);
		for(int x = 0; x < 1000; x++) // 1000 steps is 5 turns
	{
		digitalWrite(stepPin, HIGH);
		delayMicroseconds(1000);
		digitalWrite(stepPin, LOW);
		delayMicroseconds(1000);
			}
		}

void StopMotor()
{
    digitalWrite(dirPin, LOW);
    digitalWrite(stepPin, LOW);
	
			}