Cc2uart - node-cc2540. Node.js support for the TI CC2540 UART service. The CC2540 is programmable so there is no guarantee this works with all boards with the CC2540 chip. This module is built on noble so it should work where ever noble works. See also nrfuart if using the nRF8001. TIDC-CC2540-BLE-USB — The CC2540 USB Dongle is a complete example of how to use the USB enabled Bluetooth Low Energy (BLE) Wireless MCU. The reference design can be used to enable Bluetooth Smart and Internet of Things applications on any system that contains a USB host. Ubuntu support for the cc usb dongle – Bluetooth® forum – Bluetooth® – TI E2E Community. No license, either express or implied, by estoppel or otherwise, is granted by TI. You can send serial commands to do different things, but I don’t think hcitool can utilize it in that mode. I2C driver (software implementation), for controlling I2C components (e.g. EEPROM on BLE Mini) Firmware upgradable via USB port (support TI CC2540 UBL 1.3) USB CDC which provides a virtual UART via USB port for connecting to an external device with the USB port (e.g. PC Windows/Linux or Mac OSX) Requirement. CC2540 hardware (e.g.

• 3Analysis
• 4Protocol
  • 4.2Reading BLE frames

Status

At this point (2017-05-09), the status is:

• it is pretty clear which commands the default sniffer firmware understands
• I wrote a little test program to dump raw BLE frames
• there is no plugin for WireShark yet

Introduction

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.

It's supposedly a CC2540 (or compatible) dongle, the USB id is 0451:16b3.

Interesting links:

Analysis

USB descriptor

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

Reading the identification from the stick with the 0xC0 command, results in the following 8-byte response

You can recognise the 2540 type number in there.

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, using USB pcap.

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.

The USB control transfer request codes seem to match up with the code in https://github.com/christianpanton/ccsniffer/blob/master/ccsniffer.py

• 0xC0, GET_IDENT: returns some kind of identifier
• 0xC5, SET_POWER
• 0xC6, GET_POWER
• 0xC9, no idea, this appears in my USB logs but I can't find it in the python code
• 0xD0, START
• 0xD1, STOP
• 0xD2, SET CHAN

Protocol

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

• towards the stick: which radio channel to sniff, and some other radio settings
• from the stick: raw sniffed BLE frames

Ti Cc2540 Usb Driver

Configuring the radio

This appears to be done using USB control transfers.

The following requests are sent:

Request type 0x40 is a vendor-specific device request from host-to-device.Request type 0xC0 is a vendor-specific device request from device-to-host. Call of duty modern warfare 2019 german language pack.

Reading BLE frames

This appears to be done using USB bulk input transfers.

I can see a lot of similarities between the USB log and the BLE sniffer log.

Each frame starts with a byte indicating the type of frame, following by two bytes indicating the length of the rest of the frame (encoded as little endian).

data frames

The bulk USB data starts off with two bytes indicating the length of the rest of the data.

In the example image on the right:

• 00: 0 means this is a data frame
• 31 00: length of rest of frame encoded in little endian = 49 bytes decimal
• 39 04 29 54: part of the time stamp
• 2c d6 be .: data frame contents

unknown frames (tick or 'alive'?)

The stick also returns 4-byte frames, alternating between

Ti Cc2540 Usb Cdc Driver

and

Interpretation:

Usb Cc2540 Hid Driver

• 01: 1 means this is a frame of type 1
• 01 00: length of the rest of the frame encoded in little endian = 1 byte
• 40 or C0: unknown data byte

Software

Preliminary code can be found athttps://github.com/bertrik/cc2540

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Ti Cc2540 Usb Driver Download

It connects to the dongle and dumps raw USB packets to stdout.

This software requires libusb-1.0-dev

Ti Cc2540 Usb Cdc Driver Free Download