Sending a Hello message using arduino

slipstick:
I can't see anything in your code that's doing anything with individual bits in a message.

I would be very glad if you could help me fix that part

slipstick:
What program in the PC is receiving the message and what is it doing with it?

I am actually using two different pcs, one of the pcs is connected to an Arduino nano board and the nano board is connected to the TX circuit. The other pc is connected to an Arduino uno board and the uno board is connected to the RX circuit.
I'm using Arduino software on both pcs.

slipstick:
Or do you intend that all of the text sent using Serial will flash the LED according to it's binary representation?

Actually, that's how I was thinking the LED will work out, but don't know if that's how it's going to work out.

slipstick:
Which part of that code is sending "Hello world" to the PC?

I just rectified the code:

//Below is the TX Code:

int LEDPin = 13;
int LEDOnTime = 400;
int LEDOffTime = 500;
int nummsgBlinks = 5;
String Message = "Hello world";

void setup() {
Serial.begin(9600);
String wm1 = "Welcome to ";
String wm2 = "My Program";
String wm3;
wm3=wm1+wm2;
Serial.println(wm3);
pinMode(LEDPin, OUTPUT);
}

void loop() {
for (int i=1; i<=nummsgBlinks; i=i+1){
 Serial.print(i);
 Serial.print(": ");
Serial.println(Message);
digitalWrite(LEDPin,HIGH);
 delay(LEDOnTime);
 digitalWrite(LEDPin,LOW);
 delay(LEDOffTime);
}
Serial.println(" ");
}

Warm regards,
Albert