Shadow-Activated QR Code Actually Useful and Cool | Adweek

QR code only seen when shadows are just right

QR code only scans when shadows are just right

A marketing guru’s excuse to create a flash mob once a day when the sun is at just the right height and angle.  What surprises are in store when the QR code is scanned? Won’t that be fun to find out.

Read more…  Shadow-Activated QR Code Actually Useful and Cool | Adweek.

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