ble_app_hrs_nfc_pairing NFC pairing ble_app_hrs_nfc_c, got error 33281

[yoyou]

HI,

I have two DK10056 52840（one load ble_app_hrs_nfc_pairing ,another load pairing ble_app_hrs_nfc_c）

i using Keil5  SDK17.2 s140 test NFC pairing. I didn't modify the sample code.

adafruit_pn532_nfc_a_target_init()   return  err_code = 33281

when i load example ble_app_hrs_nfc_c.

when i load example twi_scanner_pca10056,i have got as follows. the same err_code = 33281.

how to solve the error?
thanks for help.

[Simonr]

Hi

The nRF52 series does not have an NFC reader I'm afraid. The peripheral is only an NFC tag and you'll require a reader to connect/pair to devices using NFC. Generally, these examples are used to connect and pair to I.E. a phone with an NFC reader. I think the error you're seeing is that the tag doesn't find any active readers which is why you're seeing this error message. Please try holding it to a NFC reader instead of another nRF52 DK and see if you're able to connect and pair there.

Best regards,

Simon

[yoyou]

thanks for your reply.

the android phone can be fond it as follows.

but  i want to DK pairing to another DK，After that, I will make a headset according to DK。

Which example should I use to pair?

[Simonr]

Hi

Well, you can't use NFC to pair two nRF devices together, you should do "normal" pairing over BLE. You can check out our LE secure connections example for instance that does this.

As you're planning on making a headset I would suggest checking out the nRF5340 and Bluetooth LE audio, as "normal" BLE is not designed for audio transmissions.

Best regards,

Simon

[yoyou]

where is LE secure connections example?

According to your recommendation, I looked at the information of 5340. You said it very well，

thank you very much.

[Simonr]

I updated my last reply to include the link to the LE secure connections example. Sorry about that.

Best regards,

Simon