#define LED_PIN 12  // LED connected to Pin 13

void setup() {
  pinMode(LED_PIN, OUTPUT);  // Set LED pin as output
}

void loop() {
  digitalWrite(LED_PIN, HIGH);  // Turn LED ON
  delay(2000);  // Wait 1 second
  digitalWrite(LED_PIN, LOW);   // Turn LED OFF
  delay(1000);  // Wait 1 second
}