int led1 = 1;
int led2 = 2;

void setup() {
  // put your setup code here, to run once:
  pinMode(led1,OUTPUT);
  pinMode(led2,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(led1,HIGH);
delay(500);
digitalWrite(led1,LOW);

digitalWrite(led2,HIGH);
delay(500);
digitalWrite(led2,LOW);
}
 //DIBUAT OLEH RAJENDRADEKKAMAHAESWARA 8F ABSEN 27 NIS 2716