NXP Semiconductors
NFC Tandem User Manual
447202
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© NXP B.V. 2018. All rights reserved.
User manual
Rev. 0.2 — 17 August 2018
COMPANY PUBLIC
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2 Use Cases
Combining PN7150 Full NFC controller solution and NTAG I
2
C
plus
zero-power
operation, NFC Tandem concept enables innovative use cases.
The following examples relates to Gateways and Set Top Boxes applications but are of
course not exhaustive and could also be applicable to some other applications.
Those use cases are shown using NFC Tandem demonstration setup (see
2.1 Service configuration
As first step, NTAG I
2
C
plus
memory could be initiliazed with a link to the Operator
related phone application. This way, before powering-on the device (can even be done
prior to unboxing), tapping his NFC phone user will be guided to download the application
from the store. If already installed, the application will automatically be launched. The
application can instruct the user how to connect and install the device.
Then the phone application can allow activating Gateway or Set Top Box device by
transferring credentials to NTAG I
2
C
plus
memory via NFC. This could eventually been
done by in the shop by the merchant (device inbox). When powered-on, the host reading
those credentials from the NTAG I
2
C
plus
memory through I
2
C can perform device
activation over the network.
2.2 WiFi and IoT node pairing
When powered-on, the device can share WiFi credential of the network over NFC (thanks
to PN7150). When tapped, NFC phones retrieving this information will automatically
connect to the WiFi network without no other user action than simple confirmation. WiFi
credential can also be transfered in the same way to another device e.g. a WiFi repeater.
PN7150 is also capable of retrieving NFC information offering simplified pairing of IoT
nodes supporting NFC Smart commissioning: just tapping the node to the device allows
getting it added to the network in a simple and secured way. For more details about
Smart NFC commissioning refer to
2.3 Error diagnostic and assistance
NTAG I
2
C
plus
memory can be used to store useful information during runtime for later
error diagnostic and assistance. These information being accessible from NFC interface
when device is powered off (or in case of network issue), it can be interpreted by phone
application to troubleshoot. Alternatively, it can be a source of analysis by manufacturer
in case of customer return.