Serial.print prints twice

Projects Programming
1

Hello guys, I'm new to Arduino and I wanted to do some examples to get familiar with syntax and I'm getting this boring problem;

My code simply creates char array(name), fills it with user input and displays it with Serial.print;

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

char name[6];
int i=0;
void loop() {

while(!Serial.available()){}

name[i]=Serial.read();

Serial.println("Received value=");
Serial.write(name[i]);

i++;
if(i==6){
  while(1){
  }
  
}
}

For example when I entered character 'B' output is ;

Received value=
BReceived value=

2

What is the Line ending set to in the Serial monitor ?

3

Caution - name[6] only has elements 0::5

4

UKHeliBob new line

lastchangename yeah, it should be char name[5]

Guys I take this double writing problem wherever I use Serial.read(), I have searched in forum and some people gets this problem too. I know code has no logical errors, even I copy pasted one code in forum and same result.

Maybe some hardware problems cause this ?

5

When you have the line ending menu set to newline, it sends the data you entered (B in this case), followed by a newline character. Do you see the problem now?

The possible solutions:

  • Set the line ending menu to "No line ending".
  • Change your code so it works as you want it to with any line ending characters.
6

UKHeliBob new line

There is the problem as pert has pointed out

7

UKHeliBob, pert "no line ending" solved my problem, thank you !