Researchers at TU Wien in Vienna have created a QR code so small it can only be read with an electron microscope. The code measures roughly 1.98 square micrometers, with individual pixels about 49 ...

Credit cards embedded chips, national mints printed watermarks, and high-profile locations installed retina scanners all for the same reason—to protect information. As attackers grow smarter, so must ...

For the longest time we’ve been using UPC bar codes to store strings of information in a compact space on both product labels and people in dystopian sci-fi movies. But as our needs grew and became ...

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 ...

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 ...

This year marks the 30th anniversary of the QR Code, the ubiquitous scanning tag developed by a Japanese engineer that is used in every facet of modern commerce. As the technology evolved, the impact ...

Created in 1994 by Toyota subsidiary 'Denso Wave' to quickly track vehicles and parts through the company's automotive manufacturing process, QR codes are used more commonly today for logging into ...