I'm working on an Arduino project and I want to store a hex value as string.
eg: Hex is C697C63B
for (byte i = 0; i < bufferSize; i++) {
Serial.print(buffer[i], HEX);
}
I would like to store the String as x = "C697C63B";
String CardID = "";
for (byte i = 0; i < bufferSize; i++) {
CardID += (buffer[i],HEX);
Serial.println(CardID);
}
But the Sting is stored as CardID = 16161616
You should use an ostringstream
:
auto outstr = std::ostringstream{};
outstr << std::hex << 0xC697C63Bul;
auto myHexString = outstr.str();