nRF52840 (Nordic Dongle) - Bluetooth Sniffer

RE: nRF52840 (Nordic Dongle) - Bluetooth Sniffer

Hung Bui — Tue, 01 Aug 2023 12:31:22 GMT

Hi Rosario,

You can take a look at our pc-ble-driver-py library https://github.com/NordicSemiconductor/pc-ble-driver-py

You can use the dongle with connectivity firmware with it (you should use the hex file you compile from the repo, not the connectivity firmware from the SDK.)

It would do the job, but be aware that it's been discontinued and haven't got any development in the last few years.

RE: nRF52840 (Nordic Dongle) - Bluetooth Sniffer

0x00 — Tue, 01 Aug 2023 06:57:12 GMT

Thank you very much! I forward a mate question here:

"Could you also suggest a tool to interface with Python to a Nordic card (dongle) connected via USB to the PC and flashed with the Nordic Connectivity firmware?"

Many Thanks & have a nice day,
Best Regards

RE: nRF52840 (Nordic Dongle) - Bluetooth Sniffer

Hung Bui — Mon, 24 Jul 2023 12:05:10 GMT

Hi Rosario,
I'm taking over the case as Edvin is on vacation.

From what you described, I would assume you are not making a "sniffer" but a central device.

A sniffer would only listen (sniffing) to communication without intervention/interaction and we already have a sniffer solution here. A central device on the other hand can establish a connection and communicate with the peer device.

Regarding the central application you want to implement on PC, my suggestion is to take a look at Bluetooth shell: Using Bluetooth Shell

Or you can think of using central_uart sample as the base. Basically it will send anything it receive from the peripheral_uart to UART on PC. You then can make a software on PC to process these data.

RE: nRF52840 (Nordic Dongle) - Bluetooth Sniffer

0x00 — Wed, 19 Jul 2023 11:39:36 GMT

Hi Edvin,

I have to write a PC software (under Win7) that uses the Nordic Dongle to catch the data from a BLE Sensor Node

The Sensor Node alternates between the Sleep Mode & Transmit Mode.

The PC with the Nordic Dongle, instead, is always online (PC alwayes switched On and with the SW running).

We will be on target if the data flow from the Node to the PC and a User can acces to them from a file that the PC SW has to write.

Many Thanks & Best Regards

RE: nRF52840 (Nordic Dongle) - Bluetooth Sniffer

Edvin — Tue, 18 Jul 2023 13:07:31 GMT

Hello,

When you say that you need to develop a "Bluetooth sniffer" that needs to be connected to a BLE sensor node. Are you actually talking about a sniffer, similar to the nRF Sniffer for Bluetooth LE, or do you just want a device that picks up advertising packets, and/or connects to a device that transmits sensor data?

Because based on your description, it sounds like you are looking to develop a BLE central that either scans for advertising packets or connects to the device.

A typical Bluetooth sniffer would not connect to anything, but rather follow two devices into a connection. This is mostly used for debugging.

Best regards,

Edvin