Turn on function

begin.c

void inicio(){
  while(true){
    Goertzel goertzel = Goertzel(4000, N, SAMPLING_FREQUENCY);
    goertzel.sample(A0); 
    float ligar = goertzel.detect();  
    if(ligar>900){
      digitalWrite(led2, LOW);
       for (int i = 0; i < 8; i++)  
         {
        lc.setRow(0,i,invader1a[i]);
        }
        delay(3000);
        ligarAudio();
      break;
    }
  }
}