int pinLED9 = 9;
String MessageLedON = "Good morning";
String MessageLedOff = "Good night";
void setup() {
  // put your setup code here, to run once:
pinMode(pinLED9,OUTPUT);
digitalWrite(pinLED9, LOW);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
digitalWrite(pinLED9, HIGH);
Serial.println(MessageLedON);
delay(1000);

digitalWrite(pinLED9, LOW);
Serial.println(MessageLedOff);
delay(1000);
}