5 ms·
Long term technologies, waiting in the background
- PaulHoule 2y agoWhat I like about QR codes is that they have a special "alphanumeric" charset which has uppercase letters and numbers and : and / to make URLs. This encodes chars 5.5 bits per bytes and was a far-sighted choice for a standard defined in 1994.
- meithecatte 2y agoI must admit, this is the kind of description that's enough to make me want to maybe get into ham radio someday.
- deleted 2y ago[deleted]