4 ms·
That's too convenient, cameras can read many qr codes at a time. Encode the binary on some punch cards.
by newswasboring 1mo ago
That's too convenient, cameras can read many qr codes at a time. Encode the binary on some punch cards.
- eptcyka 1mo agoPretty sure cameras can be used to read punchcards too.
- alex_suzuki 1mo agoThis sounds like a fun project. Somebody already did it, apparently: https://hackaday.com/2012/07/30/reading-punch-cards-with-an-arduino-and-digital-camera/ https://hackaday.com/2012/07/30/reading-punch-cards-with-an-...