int led = 13;

int led1 = 11;

int led2 = 12;

 

void setup()    {

pinMode(led, OUTPUT);

pinMode(led1, OUTPUT);

pinMode(led2, OUTPUT);

}

 

void loop()      {

digitalWrite(led, HIGH);

delay(1000);

digitalWrite(led, LOW);

delay(1000);

digitalWrite(led1, HIGH); 

delay(1000);

digitalWrite(led1, LOW);

delay(1000);

digitalWrite(led2, HIGH);

delay(1000);

digitalWrite(led2, LOW);

delay(1000);

}