void setup() {
  // put your setup code here, 
  // to run once:
   pinMode(2, OUTPUT);   // sets I/O 
  //   PIN  to "output"
   digitalWrite(2, LOW); //sets I/O 
  //  PIN to "low
   delay(200); // delay
}

void loop() {
  // put your main code here, 
  // to run repeatedly:
   digitalWrite(2, HIGH);
   delay(1000); // wait for 1000ms
   digitalWrite(2, LOW);
   delay(1000); // wait for 1000ms
}