Newbie Question (1 of lol) (Strings/Floats)

Projects Networking, Protocols, and Devices
3

You could try to include Stdio.h into your code "#include <stdio.h>" in here is a function called sprintf and also printf (stands for print formatted) which can be used to print strings in a specified format

See here: http://www.c-for-dummies.com/lessons/float2string/
In here there's a tutorial for working with sprintf where he has a float which is pi, he divides this by 2 and can print it out as a string with the '.'

#include <stdio.h>

int main()
{
   	float pi = 3.141596;
   	char halfpie[80];
   	pi/=2;

   	sprintf(halfpie, "%f", pi);
    printf("Here is the result: %s\n", halfpie);
  	 return 0;
}

This returns

Here is the result: 1.570798

Here's a link for working with sprintf

Also here's the arduino's own page on working with printf and sprintf
http://arduino.cc/playground/Main/Printf

Finally here's a better guide on the parameters ("%s" etc..) for these two functions

http://www.cplusplus.com/reference/clibrary/cstdio/printf/ for printf
http://www.cplusplus.com/reference/clibrary/cstdio/sprintf/ for sprintf

Hopes this helps :stuck_out_tongue: