int LED = 5;     					// Assign LED to pin GPIO2(D2)
void setup() {
  	pinMode (LED, OUTPUT);			//Configure LED pin as output
}
void loop() {
digitalWrite(LED, HIGH);			//Command to turn ON LED
delay(1000);					//1 Second delay
digitalWrite(LED, LOW);			//Command to turn OFF LED
delay(1000);					//1 Second delay
}