Stepper motor laser sensor input

Other Hardware Motors, Mechanics, Power and CNC
3

Something like (untested):

int Laser = 6;
int Detector = 7;

void setup()
{ 
  Serial.begin (9600);
  pinMode(Laser, OUTPUT);
  pinMode(Detector, INPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
}

void loop()
{
  digitalWrite(Laser, HIGH);
  boolean val = digitalRead(Detector);
  if(val)
  {
    digitalWrite(9, HIGH);
    delay(1);          
    digitalWrite(9, LOW); 
    delay(1);
  }
  //Serial.println(val);
  // delay(200);
}