[nRF Connect SDK]How to use custom NFC tag to connect?

RE: [nRF Connect SDK]How to use custom NFC tag to connect?

Tim Hwang — Wed, 10 Aug 2022 06:27:06 GMT

Thank you! If need, We will make another case someday.

RE: [nRF Connect SDK]How to use custom NFC tag to connect?

Sigurd Hellesvik — Tue, 09 Aug 2022 07:44:24 GMT

Hi Tim,

Regarding my previous comment:

[quote user="Sigurd Hellesvik"]You must scan to connect.[/quote]

I realize that I might have spoken too hasty.

As long as the peripheral advertises, you might be able to connect without scanning.
However, if that is supported depends on Android.
I suggest you contact experts on Android development to get an answer on this.

Regards,
Sigurd Hellesvik

RE: [nRF Connect SDK]How to use custom NFC tag to connect?

Tim Hwang — Tue, 09 Aug 2022 07:35:53 GMT

Screenshot is from NXP app.

reason 0x4
->
#define BT_SMP_ERR_CONFIRM_FAILED 0x04
I could find 0x04 in smp.h. I have no idea what made this error.

Can I user BLE tag not attached nordic 52832?

RE: [nRF Connect SDK]How to use custom NFC tag to connect?

Sigurd Hellesvik — Tue, 09 Aug 2022 07:32:00 GMT

Hi Tim,

What is that screenshot? Which app is it from?

Can you repeat what you need assistance with?

Regards,
Sigurd Hellesvik

RE: [nRF Connect SDK]How to use custom NFC tag to connect?

Tim Hwang — Mon, 08 Aug 2022 07:12:04 GMT

Here is tag sample.
classic tag 56bytes
BLE tag is larger than classic.

RE: [nRF Connect SDK]How to use custom NFC tag to connect?

Sigurd Hellesvik — Mon, 08 Aug 2022 06:53:15 GMT

Hi,

[quote user=""]Q1. In case we use classic tag, can I connect to BLE without BLE scan? (in my test, I know that it is not easy)[/quote]

You must scan to connect.

[quote user=""]Q2. If we change classic tag to BLE tag, can we connect BLE without scan?[/quote]

To avoid misunderstandings, can you specify "classic tag" and "BLE tag"?
For example send me links to product pages.

Regards,
Sigurd Hellesvik

RE: [nRF Connect SDK]How to use custom NFC tag to connect?

Tim Hwang — Mon, 08 Aug 2022 00:00:39 GMT

Hello.

I already checked that sample.
As I told you, we're using custom tag not attached to nordic chip.
How can I use it as BLE tag?

in addition. it seems security level is mismatch. I'm expecting mode 4 but actually 1. Can I change it?
00> HS connected
00> HS Connected 56:50:EA:BC:F4:C3 (random)
00> pairing_accept conn: 56:50:EA:BC:F4:C3 (random)
00> io_capability: 4
00> auth_req: 2d
00> E: reason 0x4
00> Security failed: 56:50:EA:BC:F4:C3 (random) level 1 err 1
00> Pairing failed conn: 56:50:EA:BC:F4:C3 (random), reason 1 Disconnected: 56:50:EA:BC:F4:C3 (random) (reason 22)

RE: [nRF Connect SDK]How to use custom NFC tag to connect?

Sigurd Hellesvik — Fri, 05 Aug 2022 09:25:15 GMT

Hi Tim,

Is the Bluetooth: NFC pairing example what you are looking for?

Regards,
Sigurd Hellesvik