#define LED_BUILTIN 2
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
pinMode(LED_BUILTIN, OUTPUT); //set digital pin as output
}
void loop() {
// put your main code here, to run repeatedly:
digitalWrite(LED_BUILTIN, HIGH); //Turn on LED
Serial.println("Turn LED ON");
delay(1000);
digitalWrite(LED_BUILTIN, LOW); //Turn off LED
Serial.println("Turn LED OFF");
delay(1000);
}