NRF52840 DK + NFC Shield Data Read

[MrBlue]

fdsa

1.) From the nRF5 SDK I am using the example project for the Adafruit NFC Tag Reader.

2.) Using the project "as-is" I am able to get some basic information about the tag that is being scanned.

3.)  There is a structure that is used in the program the contains this basic information on the tag.

4.) What I would like to do next is to pull those 29 bytes of data from the tag and would like to get a recommendation on the approach.

There looks to be an NFC library from Nordic:

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v11.0.0%2Flibrary_nfc.html

Or should I use the Adafruit PN532 NFC Shield library:

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v11.0.0%2Fgroup__nrf__external__adafruit__pn532.html

Maybe I should use the function adafruit_pn532-ntag2xx_read_page ? Where should this be placed in the sequence of everything?

Thank you for your comments!

[Einar Thorsrud]

Hi,

There looks to be an NFC library from Nordic:

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v11.0.0%2Flibrary_nfc.html

This is for using the NFC tag peripheral within the nRF device, so it is not relevant for using the adfruit NFC reader.

Or should I use the Adafruit PN532 NFC Shield library:

https://infocenter.nordicsemi.com/index.jsp?topic=%2Fcom.nordic.infocenter.sdk5.v11.0.0%2Fgroup__nrf__external__adafruit__pn532.html

Yes, this is what you want in this case and what is used by the Adafruit Tag Reader Example.

Maybe I should use the function adafruit_pn532-ntag2xx_read_page ? Where should this be placed in the sequence of everything?

You typically read using adafruit_pn532_tag2_read() as you can see in examples\nfc\adafruit_tag_reader\main.c. I suggest you ask on Aidafruit forums if you get into troubles though as this is their code and just provided externally in the nRF5 SDK for the purpose of testing the NFC tag examples.