Concept design uses QR codes to give time and place information to smartphones and other devices with artificial eyes. The QR code constantly changes to reflect the new time. Freelance writer Amanda C ...

Among the many changes brought about by the pandemic is the widespread use of QR codes, graphical representations of digital data that can be printed and later scanned by a smartphone or other device.

Faith writes guides, how-tos, and roundups on the latest Android games and apps for Android Police. You'll find her writing about the newest free-to-play game to hit Android or discussing her paranoia ...