// Define the LED pin
const int ledPin = 13;

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

        void loop() {
            // Turn the LED on
                digitalWrite(ledPin, HIGH);
                    delay(1000);  // Wait for 1 second

                        // Turn the LED off
                            digitalWrite(ledPin, LOW);
                                delay(1000);  // Wait for 1 second
                                }