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 ...

QR codes have become ubiquitous short cuts for everything from account log-ins to restaurant menus, but are we at risk of ...

QR code, short for Quick Response Code, is a kind of matrix barcode that includes information about a product or service. You can find it being used for advertising purposes, where brands put up ...