#define LED 11

void setup ()
{
  pinMode(LED, OUTPUT);
  Serial.begin(9600);
}

void loop ()
{
  int pin_Potenziometro = analogRead(A0);
  int pin_led = map(pin_Potenziometro, 0, 1023, 0, 255);
  analogWrite(LED, pin_led);
  Serial.println(pin_Potenziometro);
}