void startPins(){
  pinsState = (bool*) malloc((numPins + 1) * sizeof(bool));
  pinsLastChange = (unsigned long*) malloc((numPins + 1) * sizeof(unsigned long));

  for(int i=0; i< numPins;i++) {
    pinsState[i] = false;
  }

  for(int i=0; i<= numPins;i++) {
    pinsLastChange[i] = millis();
  }
}