//Test1-Serial

void setup() {
  // put your setup code here, to run once:
  pinMode( 2, INPUT );
  pinMode( 3, OUTPUT );
  Serial.begin(9600);
  delay(1000);
  Serial.println("Test1-Serial");
}

void loop() {
  digitalWrite( 3, HIGH );
  Serial.println("LED_ON");
  delay(500);
  digitalWrite( 3, LOW );
  Serial.println("LED_OFF");
  delay(500);
}