Getting data out of BLE v3.0.0 in nRF Connect for Desktop

[jkbecker]

Hi!

I'm trying to sniff BLE advertising traffic using nRF Connect for Desktop on macOS and a nRF52840 Dongle.

I am running nRF Connect Desktop 3.8.0 on macOS Mojave 10.14.6.

When running a Bluetooth Low Energy discovery scan, I am getting things like this:

However, none of the values seem to be selectable. I work a lot with payloads encoded in ManufacturerSpecificData and typing the contained values out by hand just to parse them further is not a viable option.

Is there a way of exporting a CSV of the discovered device data or any other way to extract information into a file format that allows for post-processing in nRF Connect for Desktop? If not, is there another good way to get to this data using the nRF52840 Dongle?

[Simonr]

Hi

You will be able to get a much better picture of sniffed BLE advertising traffic using the nRF Sniffer available for Wireshark which lets you use the nRF52 series DKs and nRF52840 Dongle as a dedicated sniffer device. Please check out the nRF Sniffer user guide here, and don't hesitate to ask if you have any questions on how to set it up. The user guide should have a detailed description both for Windows, Linux and Mac machines.

Best regards,

Simon

[jkbecker]

Thank, Simon, this seems to be what I need.

I am having trouble setting up the dongle, though.

When I launch the programmer and connect the device, it errors with:

10:25:49.787	Application data folder: /Users/johannes/Library/Application Support/nrfconnect/pc-nrfconnect-programmer
10:25:53.077	Using @nordicsemiconductor/nrf-device-lib-js to communicate with target via USB SDFU protocol
10:25:57.512	Error when fetching device versions: readFwInfo error

...and subsequently won't let me write the firmware. This is with Programmer 2.0.0 and JLink V7.57b.

What can I do to fix this?

Thanks

Johannes