NFC Tandem concept: combine NFC reader and connected tag solution

Document created by Jeremy Geslin Employee on Feb 19, 2018Last modified by Adrian Puga Candelario on Jul 31, 2019
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NFC Everywhere

NFC Tandem offers best of both worlds:

An NFC reader and a passive connected tag sharing one antenna. A user can interact with the device when it is powered off (through the NTAG I²C plus); when the device is powered, it can interact with cards, P2P devices or other connected tags.



NFC Tandem Uses Cases and Applications:

  • One-touch pairing
    • WiFi with phone, or card
    • Bluetooth with phone, headset, speaker
  • IoT network node commissioning
  • User identification with badge or phone
  • Authentication and configuration of consumable and accessory
  • Zero-power parametrization
  • Zero-power firmware update
  • Zero-power diagnosis and maintenance



NFC Tandem Demo:

NFC Tandem concept is demonstrated using NFC Tandem reference board:


The demo can run on either:



Video of the demo:



NFC Tandem References:


High performance NFC controller, supporting all NFC Forum modes, with integrated firmware and NCI interface

NTAG I²C plus

NFC Forum Type 2 Tag with I²C interface


NFC Tandem Documents:

User Manual and reference schematics are attached to this document

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