int ledPin = 11;      // LED connected to digital pin 9
int buttonPin = 2;   // potentiometer connected to analog pin 3
int val = 0;         // variable to store the read value

void setup() {
  pinMode(buttonPin, INPUT);
  pinMode(ledPin, OUTPUT);  // sets the pin as output
}

void loop() {
  digitalWrite(ledPin,digitalRead(buttonPin));
}