Can Arduino receive a string from another device that contains non-printing Ascii characters? They are actually used for prefix, separator and postfix, with words of regular chars in between - the goal is to remove prefix and postfix, replace the separator with a newline (\n) and send the result to a 3rd device (a Smartphone App).
Yes, no problem.
Edited: Yes, it can. Or you treat it as binary stream.
Non-printing ASCII characters should not present any problems, and the string functions should work as long as you do not have a NUL character, since a null indicates the end of a string.
Thanks for the swift replies everyone.
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