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 ...

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 ...

Cybersecurity experts are warning about scammers using QR codes to take advantage of unsuspecting victims. What is a QR code?

Among the many changes brought about by the pandemic is the widespread use of QR codes, graphical representations of digital data that can be printed and later scanned by a smartphone or other device.

Before you scan that QR code, did you know scammers can swap out QR codes to trick people into handing over their info and stealing their money? Yes, we reported an incident in 2023. Fast-forward to ...

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Faith writes guides, how-tos, and roundups on the latest Android games and apps for Android Police. You'll find her writing about the newest free-to-play game to hit Android or discussing her paranoia ...

QR codes are a well-known technology that is used worldwide to connect the physical world to the digital one. You probably know this already. But if you are hoping to find out more about QR codes, or ...