#define BOTON 2

//BOTON DE ESPERA

void WaitBoton(){

  while (!digitalRead(BOTON)); //Ciclo de repeticion 

}

void setup(){
  pinMode(BOTON, INPUT);
  pinMode(13, OUTPUT);

  WaitBoton();
  for(int i=0;i<70;i++){
    digitalWrite(13, HIGH); delay(20);
    digitalWrite(13, LOW); delay(20);
  }
  WaitBoton();
  delay(1000);
}

void loop(){}