Arduino Kodum

void setup() {
Serial.begin(9600);
pinMode(2,OUTPUT);//Trig
  pinMode(3,OUTPUT);//Trig
  pinMode(4,OUTPUT);//Trig
}

void loop() {

   
  digitalWrite(2,1);//LED YANDI
  
  delay(1000);//1 SANİYE AÇIK KALSIN
  
  digitalWrite(2,0);//LED SÖNDÜ

    delay(1000);//1 SANİYE KAPALI KALSIN
}