Serial in atmega328p printing twice

[taharat_amin]

I burnt a freshly bought Atmega328p using the arduino IDE. Later I uploaded the following program:

char a;

void setup() {
Serial.begin(9600);
}

void loop() {
while (Serial.available() > 0) {
a = Serial.read();
Serial.println("I received: ");
Serial.println(a);
break;
}
}

So if I entered 'a' in the serial monitor it was supposed to print,

I received:
a

but instead it is showing:

I received:
a
I received:

I'm using FTDI breakout board as UART.

What to do?

(A snippet of the serial monitor is attached with this post)

[hzrnbgy]

The "ENTER" key or in ASCII term "\r"

[taharat_amin]

Thanks. But how to correct it?

[hzrnbgy]

Something like an if-else statement


a = Serial.read();
if(a == '\r') {
// do nothing
}
else {
print(a);
}

[sterretje]

You can have a look at the line ending setting in the serial monitor.