BlinkySketch

int ledPin=13;
int delayTime=690;
void setup()
{
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);
}
void loop()
{
  flash();
  serialPing();
}

  void flash()
  {
    digitalWrite(ledPin, HIGH);
    delay(delayTime);
    digitalWrite(ledPin, LOW);
    delay(delayTime);
  }

  void serialPing()
  {
    serial.println("LED is on.");
    delay(delayTime);
    serial.println("LED is off .");
    delay(delayTime);
  }