BT Sniffer

[Abhi Ash]

Hello,

I am looking for a Bluetooth Sniffer that is not too expensive.

Affordable for start-up organizations.

Any suggestions?

Thanks,

Regards,

AbhiAsh

[Matthias Ringwald]

Hi AbhiAsh

For LE, there are various sniffers based on Nordic's or TI's SoCs =
available. I can recommend our Raccoon =
(https://github.com/bluekitchen/raccoon). It is limited to 1M PHY and =
does not support Extended Advertisements.

Has anybody seen a free/open source LE sniffer that supports Extended =
Advertisements, or even LE Isochronous Connections?

For Classic, I'm not aware of low cost regular, passive sniffers. =
Ideally the needs to capture the full 80 Mhz/80 channels in parallel.

However, if you're developing a Bluetooth device, you can usually just =
log the HCI traffic on your side without special hardware. BTstack =
provides HCI packet logs both for desktop systems as well as for =
embedded MCUs. This allows to debug pretty much with the exception of =
Link Layer error, but these should be rare and this should be the task =
of the Bluetooth Controller vendor.

There's a new project related to the Braktooth =
(https://asset-group.github.io/disclosures/braktooth/) vulnerabilities =
that patches the Bluetooth Controller implementation for the ESP32 got =
get a cheap active sniffer. If a connection is created from/to the =
ESP32, all Link Layer packets can be logged. See =
https://github.com/Matheus-Garbelini/esp32_bluetooth_classic_sniffer

Cheers
Matthias

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