He has already has come up with 100 different QR codes with messages you might need to go about modern life. Instructions and examples are located on his website (contains some adult language).

I feel like everyone knows what a QR code is at this point, but just in case let’s start with a brief explanation. A QR code is a square symbol with a unique pattern—a sort of fancier barcode.

The appeal of QR codes is obvious: They’re touch-free and easy to scan. They have a frank, unimpeachable logic. As Joe Waters, the author of “QR Codes for Dummies,” put it: “They just work.” ...

Once a menu appears select “Extensions” and then activate the slider for “QR Code Reader” To scan a QR code tap on the symbol with the three dots in the top right corner.

An odd symbol representing the support of free speech in Oklahoma comes in a QR code shared online and printed on everything from lawn signs to tote bags.

Technology QR Codes For Headstones Keep Dearly Departed Close September 29, 20125:31 PM ET Heard on All Things Considered By ...