void setup() {
  // put your setup code here, to run once:
 pinMode (16, OUTPUT); 
 pinMode(19, OUTPUT);
 pinMode(15, OUTPUT);
}

void loop () {
  // Tiempo de Retardo del Led
  delay (1000);
digitalWrite(16, HIGH);
delay (1000);
digitalWrite(16, LOW);
digitalWrite(19, HIGH);
delay (1000);
digitalWrite(19,LOW);
delay (1000);
digitalWrite(15, HIGH);
delay (1000);
digitalWrite(15, LOW);

}