#define LED_PIN 14 // define the LED pin 14 in Arduino
void setup() {
pinMode(LED_PIN, OUTPUT);
}
// set pin connected to LED as output
void loop() {
// Turn the LED on
digitalWrite(LED_PIN, HIGH);
delay(2000); // wait for blink delay interval
// Turn the LED off
digitalWrite(LED_PIN, LOW);
delay(2000); // wait for blink delay interval
}