int pinoPot = 15;
int LED = 23;

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

void loop() {

  int valor = analogRead(pinoPot);
  Serial.println(valor);

  digitalWrite(LED, HIGH);
  delay(valor);
  digitalWrite(LED, LOW);
  delay(valor);
}