int LedPin = 2;
int potensioPin = A2;
int val =0;
void setup() {
 Serial.begin(9600); // put your setup code here, to run once:
pinMode(LedPin, OUTPUT);
}

void loop() {
  val = analogRead(potensioPin);
  analogWrite(LedPin, val / 4);
  Serial.println(val);

}