[Solved] Why argument accept “text” but not string variable? [closed]

by


That probably is because the method send only takes a const char* as argument and not a std::string. Try:

uBit.serial.send(result.c_str());

edit:

Now your code has changed and result is a stringstream:

uBit.serial.send(result.str().c_str()).

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solved Why argument accept “text” but not string variable? [closed]