RFID / NFC Smart Ring - Size 12 - NTAG213 [Discontinued] Brand_Devantech 4 wire SPI digital interface

4 wire SPI digital interface

replacement and warranty assistance for Xbee products from Digi

This module uses 4 high-performance & high-current driver chips (BTS7960) with the following protective functions: Current short

a 5V 4A for a couple meters

5x Diffused 5mm Green LEDs

RFID / NFC Smart Ring - Size 12 - NTAG213 [Discontinued] Brand_Devantech 4 wire SPI digital interfaceWhat 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