int pm = 0;
int interval = 0;
int ledState = LOW;

int switchState(int state) {
  if (state == LOW) {
    return HIGH; 
  } else {
    return LOW;
  }
}

// the setup routine runs once when you press reset:
void setup() {
  // initialize serial communication at 9600 bits per second:
  Serial.begin(9600);
  pinMode(LED_BUILTIN, OUTPUT);
}

// the loop routine runs over and over again forever:
void loop() {
  int analogValue = analogRead(A0);
  Serial.println(analogValue);
  // read the input on analog pin 0:
  unsigned long currentMillis = millis();
  int sensorValue = analogRead(A0);
  // print out the value you read:
  //Serial.println(sensorValue);
  //delay(1);  // delay in between reads for stability
  interval = sensorValue * 5;
  

  if (interval < 500) interval = 500;

  if (currentMillis - pm >= interval) {
    ledState = switchState(ledState);
    digitalWrite(LED_BUILTIN, ledState);  // turn the LED on (HIGH is the voltage level)
    pm = currentMillis;
    Serial.println("Potenziometro: ");
    Serial.println(sensorValue);
    Serial.println("Ritardo: ");
    Serial.println(interval);
  }
  
}