Base16

Arduno Base16 library that provides the ability of encoding ASCII text to hexadecimal and decoding hexadecimal to ASCII text.

Installation

You can include the library from the Library Manager or just download it as ZIP and include it from source as ZIP library.

How to use it

const char input[] = "{\"app\": \"Hello World!\"}";
char output[strlen(input) * 2];

ASCIItoHex(input, output);

const char input[] = "7B22617070223A202248656C6C6F20576F726C6421227D";
char output[strlen(input) / 2];

hexToASCII(input, output);

Please, check the /tests for more info about how to use the library.

How to run the tests

Under the /tests directory you will find all the .ino files that can be uploaded in Arduino as usual.