How to scan a QR code safely using your smartphone

Not all smartphones require a third-party app to scan QR codes. Kurt "CyberGuy" Knutsson shows you how to scan codes using iPhone or Androids.
Hackaday

Color Can Triple QR Code Capacity

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) ...
Popular Science

How to make a QR code and share digital data with anyone, anywhere

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Louisiana Vehicle Identification Program. How to get QR code, starting date

Louisiana could get rid of inspection stickers and implement the Louisiana Vehicle Identification Program, requiring drivers ...