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 ...

While the potential for data storage in such a small form factor is promising, the reality won't break open the RAM shortage concerns plaguing tech right now.

QR codes are everywhere these days and are very easy to take for granted — so much so that we never even stop to question ...

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 ...

Ever wondered why QR codes have three large squares at the corners? Discover the engineering behind finder patterns, error correction, and QR technology.