There are plenty of drones (and other gadgets) you can buy online that use proprietary control protocols. Of course, reverse-engineering one of these protocols is a hacker community classic. Today, ...
- https://docs.arduino.cc/language-reference/en/functions/communication/serial/read/ - https://docs.arduino.cc/language-reference/en/functions/communication/serial ...
// (at your option) any later version. // libSML is distributed in the hope that it will be useful, octet_string *sml_octet_string_init(unsigned char *str, int length); octet_string ...