NXP Semiconductors
NFC Tandem User Manual
447202
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User manual
Rev. 0.2 — 17 August 2018
COMPANY PUBLIC
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Figure 10. NTAG I2C Demo application "CONFIG" page
* The is not NDEF formatted during production and NXP TagWriter Android
application doesn’t suceed to format it
4.4 Demonstration
At this step NTAG I
2
C
plus
is accessible over NFC interface while the Raspberry Pi or
UDOO Neo is not powered ON. Using NXP TagWriter Android application, it is possible
to read and write NDEF information from/to NTAG I
2
C
plus
memory.
Then, when powering ON the Raspberry Pi or UDOO Neo, the demo image is reading
the NTAG I
2
C
plus
memory via I
2
C interface, and if NDEF WiFi Connection Handover
information is found it will use the credential to broadcast related WiFi network. Now the
NTAG I
2
C
plus
memory is not anymore visible over NFC interface, instead the PN7150 is
sharing alternatively:
•
NDEF WiFi Connection Handover information of the broadcasted WiFi network offering
smart connection of an NFC phone when tapped
•
NDEF URL information allowing opening NFC Tandem demo page (shared from the
Raspberry Pi or UDOO Neo over the WiFi network) on NFC phone when tapped
PN7150 is also capable to read NFC Forum tags and display related information to the
NFC Tandem demo page (previously opened from the NFC phone following previous
step).
In the NFC Tandem demo page, a button allows to write NDEF information (NDEF
Text message simulating an error log) to the NTAG I
2
C
plus
memory via the I
2
C