nRF52840 DONGLE as nRF Sniffer

RE: nRF52840 DONGLE as nRF Sniffer

Daniel Veilleux — Wed, 23 Jun 2021 23:50:53 GMT

Py launcher does seem to be a problem:

"""

(env) C:\Program Files\Wireshark\extcap>py -3
Python 3.6.0 (v3.6.0:41df79263a11, Dec 23 2016, 08:06:12) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import serial
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'serial'
>>> exit()

(env) C:\Program Files\Wireshark\extcap>python
Python 3.6.0 (v3.6.0:41df79263a11, Dec 23 2016, 08:06:12) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import serial
>>> exit()

"""

RE: nRF52840 DONGLE as nRF Sniffer

Vidar Berg — Mon, 28 Dec 2020 13:25:39 GMT

That could be the reason. Are you able to modify the batch script so that it doesn't use the py launcher, but always call python "%NRF_SNIFFER_BLE_PATH%\nrf_sniffer_ble.py" instead?

RE: nRF52840 DONGLE as nRF Sniffer

Den — Mon, 28 Dec 2020 13:24:01 GMT

I could not find any folders called "env". However, this is a shared computer in the office and Spyder-Anaconda is used on this machine as Python IDE. Could this be problem?

RE: nRF52840 DONGLE as nRF Sniffer

Vidar Berg — Mon, 28 Dec 2020 12:53:07 GMT

Thank you. So it does work when you invoke it directly. do you have a python virtual environment set up in this directory (i.e. do you have a older named "env")? In that case, please try to delete it.

RE: nRF52840 DONGLE as nRF Sniffer

Den — Mon, 28 Dec 2020 11:03:25 GMT

Thanks for your patient support Vidar. Please find it below.

RE: nRF52840 DONGLE as nRF Sniffer

Vidar Berg — Mon, 28 Dec 2020 07:52:57 GMT

Hi,

Please try to run "python "C:\Program Files\Wireshark\extcap\nrf_sniffer_ble.py" --extcap-interfaces" directly. I can't tell if this command is being issued by the batch script or not.

RE: nRF52840 DONGLE as nRF Sniffer

Den — Wed, 23 Dec 2020 14:02:16 GMT

Hi again,

This is what I get with echo ON

RE: nRF52840 DONGLE as nRF Sniffer

Vidar Berg — Wed, 23 Dec 2020 13:47:22 GMT

Hello Den,

This is strange, I'm not really sure what the issue is. Can you try to set "echo" to on in nrf_sniffer_ble.bat to see how the script is invoked?

@echo on
rem Path to this batch file
set NRF_SNIFFER_BLE_PATH=%~dp0
rem Remove the "\" from the end of the path
set NRF_SNIFFER_BLE_PATH=%NRF_SNIFFER_BLE_PATH:~0,-1%
rem Activate virtualenv if present
if exist "%NRF_SNIFFER_BLE_PATH%\env\Scripts\activate.bat" call "%NRF_SNIFFER_BLE_PATH%\env\Scripts\activate.bat"
rem Find out if the launcher is installed and available
where py > NUL 2>&1 
if %ERRORLEVEL% EQU 0 (
    py -3 "%NRF_SNIFFER_BLE_PATH%\nrf_sniffer_ble.py" %*
) else (
    python "%NRF_SNIFFER_BLE_PATH%\nrf_sniffer_ble.py" %*
)

RE: nRF52840 DONGLE as nRF Sniffer

Den — Wed, 23 Dec 2020 13:27:44 GMT

Hello again,

I do not think the problem is about pyserial. It seems to be working fine. I have the sniffer dongle on port 21 and the serial module finds it.

what else could it be?

RE: nRF52840 DONGLE as nRF Sniffer

Den — Wed, 23 Dec 2020 12:24:26 GMT

Hello Vidar,

I have tried "pip install --user pyserial" command and it said that Requirement already satisfied.

Do I have to include something in the path? Python37 and Python37/scripts are already in my user variables. Do I need to include something regarding pyserial specifically?

Den

RE: nRF52840 DONGLE as nRF Sniffer

Vidar Berg — Wed, 23 Dec 2020 12:15:17 GMT

Hello Den,

Thanks for confirming. Could try to install pyserial with the "--user" option? Like this: pip install --user pyserial.

Thanks,

Vidar

RE: nRF52840 DONGLE as nRF Sniffer

Den — Wed, 23 Dec 2020 12:12:14 GMT

Hello Vidar,

It's been a while, I did not have time to work on solving the problem. Now I am back on. When I check the location of the python, I have only one executable as below.

Any suggestions?

Thanks,

Den

RE: nRF52840 DONGLE as nRF Sniffer

Vidar Berg — Thu, 10 Dec 2020 16:40:27 GMT

Hi Den,

Hm, looks like the pyserial package is installed correctly. Are you sure you don't have more than one python installation on your system. Maybe you could you try to run 'where python' to see if it returns the path to several python executables or not?

When I run the batch script:

RE: nRF52840 DONGLE as nRF Sniffer

Den — Wed, 09 Dec 2020 14:02:28 GMT

Hi Vidar,

I spent some time trying to solve it but I had no success. It seems that pyserial has been installed but I could not find what's wrong. Do you have any ideas?

Thanks,

Den

RE: nRF52840 DONGLE as nRF Sniffer

Vidar Berg — Tue, 08 Dec 2020 16:01:36 GMT

Hi Den,

Please run pip3 install -r requirements.txt from the extcap directory. Looks like the "serial" module has not been installed for this python installation.

RE: nRF52840 DONGLE as nRF Sniffer

Den — Tue, 08 Dec 2020 15:07:28 GMT

Hi again,

I am trying to install the sniffer and this is what I get. I used to have Python 2.7 but I removed that. Python version is verified however I could not get rid this error.

Can you please help me with this?

Thanks,

Den

RE: nRF52840 DONGLE as nRF Sniffer

Den — Tue, 08 Dec 2020 11:31:04 GMT

Ok thanks very much. Will let you know soon 🙂

RE: nRF52840 DONGLE as nRF Sniffer

Vidar Berg — Tue, 08 Dec 2020 11:06:52 GMT

Hi Den,

For me it starts to blink after I open wireshark. Not sure if it's indicating serial communication or BT packet traffic.

Best regards,

Vidar

RE: nRF52840 DONGLE as nRF Sniffer

Den — Tue, 08 Dec 2020 10:55:01 GMT

Hi Vidar,

Thanks for the quick response. I should have missed that fact in the guide. The hex is now loaded to the device. I think I will have to update WireShark before I give it a go. However before that, does the DONGLE need to blink when the hex is loaded? It does not turn on any LEDs. How can I make sure of things?

Thanks,

Den

RE: nRF52840 DONGLE as nRF Sniffer

Vidar Berg — Tue, 08 Dec 2020 10:19:47 GMT

Hi Den,

Glad to hear that:) I've also been waiting for this update. As for the programming problem, the 'sniffer_nrf52840dongle_nrf52840_7cc811f.hex' contains the full FW image, so there is no need to program the Softdevice separately. Please try to program just this file, and let me know if it doesn't work.

Best regards,

Vidar