// Define pin numbers
const int switchPin = 2;  // Switch connected to digital pin 2
const int ledPin = 13;    // LED connected to digital pin 13 (built-in)

void setup() {
  pinMode(switchPin, INPUT);    // Set switch pin as input
  pinMode(ledPin, OUTPUT);      // Set LED pin as output
}

void loop() {
  int switchState = digitalRead(switchPin); // Read switch status

  if (switchState == HIGH) {
    digitalWrite(ledPin, HIGH); // If switch is pressed, turn LED ON
  } else {
    digitalWrite(ledPin, LOW);  // If switch is not pressed, turn LED OFF
  }
}