NXP Semiconductors NFC Tandem, User Manual, Page: 13 / 18

NXP Semiconductors
NFC Tandem User Manual
447202 All information provided in this document is subject to legal disclaimers. © NXP B.V. 2018. All rights reserved.
User manual Rev. 0.2 — 17 August 2018
COMPANY PUBLIC 13 / 18
interface when pressed. This way, after unpowering the Raspberry Pi or UDOO Neo, this
information can be retrieved over the NFC interface by tapping the NFC phone.
You can refer to the NFC Tandem video (see
[13] ) of the demonstration for more
illustrated details.
4.4.1 Demo #1 Service Configuration
Pre-requisite: Access the NTAG I
2
C plus via NFC (board unpowered), within
‘NXP TagWriter’ application, create a new dataset of type “Launch Application” for
“com.nxp.nfc.tagwriter” as package name, and write it to the NTAG I
2
C plus memory.
1. Before powering the board, just tap the NFC phone to the antenna. This trigger
automatic launch of the ‘NXP TagWriter’ application.
2. Within ‘NXP TagWriter’ application, create a new dataset of type “wifi” defining
SSID name and password (8 characters minimum) as you wish ( use WPA2 for
authentication and AES for encryption ), and write it to the NTAG I
2
C plus memory.
3. Power on the board, WiFi network becomes visible (can be observed from the phone
WiFi settings).
4.4.2 Demo #2 WiFi connection and IoT nodes pairing
Pre-requisite: continue right after demo #1.
1. Tap the phone to the NFC Tandem (board still powered on), PN7150 will “push” Wifi
credentials to the phone which then gets connected to the WiFi network.
2. Tap again the phone, it opens a webpage on the phone where NFC functionality of
the NFC Tandem board is displayed. Tapping any NFC device on the NFC Tandem
antenna then triggers related details into this webpage.
4.4.3 Demo #3 Error diagnostic and assistance
Pre-requisite: continue right after demo #2.
1. On the phone, click on the “Error log” button (inside the NFC Tandem demo page
opened during demo #2). It triggers writing a fake error message inside the NTAG I
2
C
plus memory.
2. Power down the board, then Tap the phone. The error logs will be displayed on the
phone.