void setup() {
  pinMode(11, OUTPUT); 
  Serial.begin(9600);
}

void loop() {
  int potValue = analogRead(A0); 
  int ledBrightness = map(potValue, 0, 1023, 0, 255);
  
  analogWrite(11, ledBrightness);
  
  Serial.print("Potentiometer: ");
  Serial.print(potValue);
  Serial.print("\t LED: ");
  Serial.println(ledBrightness);
  
  delay(10);
}