A ring that is sure to shine! shared by Make It And Fake It on YouTube, with instructions on Make:
This ring contains and LED connected to a wire coil. When the wire coil is properly aligned with an electromagnetic field, the LED will light up. This phenomenon is called induction. The electric current in a primary coil contained in a NFC reader or wireless charger creates a magnetic field which, in turn, creates an electric current in the coil cast inside the ring, lighting up the LED. This is the same technology that allows you to tap your card to board public transportation, or tap to pay. Make this ring and take it around town to discover how electromagnetic fields at work!
Every Wednesday is Wearable Wednesday here at Adafruit! We’re bringing you the blinkiest, most fashionable, innovative, and useful wearables from around the web and in our own original projects featuring our wearable Arduino-compatible platform, FLORA. Be sure to post up your wearables projects in the forums or send us a link and you might be featured here on Wearable Wednesday!
No comments:
Post a Comment