int led=11; //PWM pin for LED


void setup() {
  Serial.begin(9600);
  pinMode(led,OUTPUT); //Initialization of OUTPUT pin
}

void loop() {
  //Get reading from Potentiometer
  int pot_value=analogRead(A0); 
  //Converting reading from Potentiometer to value in the range 0-255
  float voltage = pot_value * (255.0 / 1023.0);
  //Brightness Control
  analogWrite(11,voltage);
  //Optional output on Serial Monitor
  Serial.println(voltage);

}