sprintf help needed - dynamic creation

Projects Programming
12

gjt211:
I have ended up creating my char array one value at a time but now I have a new problem.

When I send the data to my server, there is a /r appended to the end of the string (looking at it in Node-red).
My last few lines of code are;

  char rew[12];

sprintf(rew,",10:%1.1f",therm.value);
 strcat(foo,rew);



Previously when I done it all in a single sprintf line, there was no /r at the end.
Any ideas?

is the buffer big enough for the formatted text and terminating zero?

you could use my CStringBulder class from StreamLib. search StreamLib in Library Manager.