// Pin 13 has an LED connected on most Arduino boards.
// give it a name:
int led = 13; //9;

// the setup routine runs once when you press reset:
void setup() {                
  // initialize the digital pin as an output.
  pinMode(led, OUTPUT);     
}

// the loop routine runs over and over again forever:
void loop() {
  // do a double-blink fast, then longer off pause
  digitalWrite(led, HIGH);
  delay(200);
  digitalWrite(led, LOW);
  delay(200);
  digitalWrite(led, HIGH);
  delay(200);
  digitalWrite(led, LOW);
  delay(200);
  digitalWrite(led, HIGH);
  delay(200);
  digitalWrite(led, LOW);
  delay(1000);
}