Hi there, I’m having some trouble trying to convert an unsigned char to a string. I’m trying to covert dta into a string. Thanks in advance for any help int len = 0; unsigned char dta[20]; while(Serial1.available()) { dta[len++] = Serial1.read(); } //convert dta into a string here

Some clarification is needed her. If you are looking for a way to make your char array a C string, you should just add dta[len] = '\0'; after your while loop. You’d have to do this anyway, even for the next step. If youn want a String object, than you just need to assign the char array to your St…

Hi, Thanks for the reply. I’ve added the cpp data[len]='\0'; now (thanks) Using cpp String myStringObj = dta gives me the following error: invalid conversion from 'unsigned char*' to 'const char*'

I’ve played around a bit more and I’ve got the following working: String myString = ""; for(int x = 0; x < len-1; x++) { myString = myString +String(char(dta[x])); } Is there a more elegant way to produce the same result?

Your error message gives you the clue already. The assign operator = for the String object expects a different type to what you (or I in this case :wink: ) supplied. But since both types are compatible you just need to type cast it like this myString = (const char*)dta;

[image] ScruffR: myString = (const char*)dta; Thanks for your help @ScruffR

Convert unsigned char to String

General

robertral February 19, 2015, 9:42am 6

Thanks for your help @ScruffR

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Convert unsigned char to String

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