int ledPin = 5;
int potensioPin = 15;
int val = 0;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  Serial.println(ledPin, OUTPUT);
}

void loop() {
  val = analogRead(potensioPin);
  analogWrite(ledPin, val / 4);
  Serial.print(val);
}