What if your keychain could tell you the temperature, all while staying battery-free? That’s the essence of this innovative keychain ‘NFC_temp’ by [bjorn]. This nifty gadget harnesses energy from an ...

You know NFC. It's that feature on your phone that you insist is really cool and some day you'll totally find a use for it. Well, today is that day. Waiting for your computer to start up when you get ...

JCB, a Japanese international payment brand and Singaporean Fintech Keychain GK have implemented offline payments using near-field communication (NFC), self-sovereign identity, and blockchain ...