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 ...

The app I use is Trend Micro QR Scanner. It's a very simple QR code scanner that requires no additional subscription or purchase of a product, although Trend Micro does have an excellent free ...

This is because it displays the time by generating a QR code, which only becomes readable ... since the QR format used is the tiny Micro QR M2 version that measures only 13×13 pixels.

Modified versions of QR codes have since been successively introduced to respond to emerging needs. The space-saving Micro QR code emerged in 1998. It can be printed on an area as small as 1 ...