Professor Cooldad utilise witches.town. Vous pouvez læ suivre et interagir si vous possédez un compte quelque part dans le "fediverse".
Okay follow up idea, binary pairs:
00: break
01: dot
10: dash
(And to reiterate, this has certainly been done 20+ years ago in a much better fashion. Reinventing the wheel for giggles. That doesn't mean I don't like feedback! Just don't think I consider any of this to be an ~important discovery~)
Check out stuff like APRS for an example of an actual data transmission protocol done over radio waves