Help with chars and Strings

Forum 2005-2010 (read only) Software Syntax & Programs
1

Here's the deal:

I am trying to take chars read in using Serial.read() and put them into a string. I can do that by creating a string and concatenating the read char to the String object. The problem comes when I try to write it back to serial or even an LCD.

The code I am using to read the word or phrase from serial is :

String messageString;
char checkChar;

if (Serial.read() == '|') {

while (checkChar != '|') {

checkChar = Serial.read();
messageString = messageString + String(checkChar);

}

}

When I go to write it back i simply get a some numbers or random characters.

I can write to serial using Serial.print(String("Test")) but I get the random numbers when I use Serial.print(String('Test')).

I'm sure it's something I don't understanding regarding strings, chars and String objects. i.e. the ' ' and " ".

Any help you can provide would be greatly appreciated!

Thanks!

2

This code snippet doesn't tell us anything about messageString or checChar. The types of these variables, and where they are used, is critical for helping you understand what is wrong with your code.