int getDistanza(){
    int distanza;
  unsigned long tempo;

    digitalWrite(TRIG_PIN, HIGH);
    delayMicroseconds(10);
    digitalWrite(TRIG_PIN, LOW);

    tempo = pulseIn(ECHO_PIN, HIGH);
    distanza = (0.033765 * tempo/2);
    delayMicroseconds(10);

  return distanza;
}



  int distanza;

  for(int i=0; i<10; i++){
    distanza += getDistanza();
  }

  distanza = distanza/10;
  Serial.println("Distanza: " + String(distanza) + "cm");