Adafruit has this week announced the arrival of new wearable smart rings that supports both RFID and NFC communication allowing you to create projects that can wirelessly interact with your smartphone, tablet, PC, development boards and more.
The range of smart ring jewellery is available from 17 mm up to 22 mm in diameter and are currently in stock and available to purchase directly from the Adafruit online store priced at $44.95.
The wearable smart rings are equipped with a MiFare Ultralight C – NTAG 213 that offer 144 bytes of read/write memory and can be used to launch applications unlock your smartphone, control Arduino as well as many other applications. Adafruit explains a little more.
What did Lord Sauron, when forging the One Ring in the fires of Mount Doom forget to include in his all powerful ring? What did he forget to leave out of the ring impervious even to dragon fire, designed to rule over all free peoples of Middle Earth in perpetuity – a ring destined to be the One Ring to Rule Them All, to tempt its wearer with the promise of infinite power? Thats easy – it could have used an embedded RFID/NFC transponder! NFC (near field communication) technology is a great way to interact wirelessly with projects.
NFC is a way for two devices very close to each other to communicate. Sort of like a very short range bluetooth that doesn’t require authentication. It is an extension of RFID, so anything you can do with RFID you can do with NFC. Because it can read and write tags, you can always just use this for RFID-tag projects. This ring can be read by any NFC/RFID reader with ISO 14443-3A MiFare Ultralight/NTAG support (which is pretty much all of them), including our PN532 readers and various tablets and phones.
Jump over to the Adafruit website via the link below for more details, specifications to purchase.