Recently [mit41301] wondered about increasing the data capacity of QR codes, and was able to successfully triple the number of bits using color. He chose the new rectangular micro QR code (rMQR) ...

As you probably know, we love our clocks here at Hackaday. Odd display technologies are always interesting to see, as are unusual encoding techniques such as binary, ternary or higher-radix number ...

You’ve probably scanned a QR code this week without thinking twice about it. It might’ve been on a menu, a package, or a flyer. What matters more is what happens after you scan it: you expect it to ...