Difference between revisions of "CC2540"

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Revision as of 20:03, 15 November 2016

Project CC2540
Cc2540 webee.png
Making the CC2540 BLE dongle work
Status Initializing
Contact bertrik
Last Update 2016-11-15


This page is about the CC2540 bluetooth low-energy sniffer dongle and getting it to work with Linux. A nice end result could be that it becomes possible to sniff directly in WireShark with this dongle.

I have such a "WeBee" dongle that can be found for about E15,- on websites like Aliexpress.


USB descriptor

When plugging this stick into a Linux machine, you can see it uses only one bulk endpoint.


USB logs from Windows

This USB device does actually work with Windows:

I've captured a log of the communication over USB while the BLE is capturing bluetooth traffic from some iBeacon:

  • TODO

In the logs, I cannot see any firmware blobs being downloaded to the stick. Probably the stick comes with a pre-loaded firmware of itself to do the BLE sniffing.


Cc2540 settings.png

In the windows sniffer software, it seems there are only two things communicated:

  • towards the stick: which radio channel to sniff
  • from the stick: raw sniffed BLE frames

Cc2540 packet details.png Cc2540 wireshark.png