int vibratore = 6;

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

void loop() {
  // put your main code here, to run repeatedly:
  digitalWrite(vibratore, HIGH);
  digitalWrite(4, LOW);

  //analogWrite(vibratore, 0);
  delay(3000);

  digitalWrite(4, HIGH);
    digitalWrite(vibratore, LOW);

  delay(10000);
}