Time-Based QR Codes: Can One Code Serve Breakfast, Lunch and Dinner?
One printed QR code, three menus: we tested time windows on three clocks at the same second, the switch minute, a window crossing midnight, and what diners see outside hours.


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The holy temple of QR

We simulated a fold across the same QR code in two places. See which images still scanned and what to check on a sample shirt before approving the print run.

One printed QR code, three menus: we tested time windows on three clocks at the same second, the switch minute, a window crossing midnight, and what diners see outside hours.

A tattoo is the one QR code you can't reprint. How big the squares must be, where to put it, which link to trust and how to test it before the needle.

Most couples use a wedding QR code just for photos. Here are 6 ideas that put it to work: guestbook, cash fund, playlist, menu, and RSVP invitation.