void setup() {
  // put your setup code here, to run once:
pinMode(5, OUTPUT);
pinMode(6, OUTPUT);
pinMode(7, OUTPUT);
}

void loop(){
  RUTINA3();
  delay(500);
  RUTINA2();
  delay(500);
  RUTINA1();
  delay(500);
  // put your main code here, to run repeatedly:

}
void RUTINA1(){
  digitalWrite(5,HIGH);
  digitalWrite(6,LOW);
  digitalWrite(7,LOW);
  }
void RUTINA2(){
  digitalWrite(5, LOW);
  digitalWrite(6, HIGH);
  digitalWrite(7, LOW);
 }
 void RUTINA3(){
  digitalWrite(5, LOW);
  digitalWrite(6, LOW);
  digitalWrite(7, HIGH);
}