RFID "smart" ring could replace cards, cash, keys and more
RFID "smart" ring could replace cards, cash, keys and more The prototype smart ring (top), alongside a regular ring for scale Fraunhofer IGCV Fraunhofer IGCV Fraunhofer IGCV It can be difficult, digging out your keys or wallet when your hands are full. Well, if an experimental new 3D-printed "smart ring" reaches production, such digging may no longer be necessary. The metal ring is currently being developed by scientists from Germany's Fraunhofer Institute for Casting, Composite and Processing Technology, as part of the larger Kinematam project. It contains a passive RFID (radio frequ...