I am trying to run NanoVNA Saver but somehow it does not find the com port. If I use VNA_qt it puts the device in USB Mode. device is V2 Plus4 FW 20220301 but also with 20211227 no difference. Any suggestion?

73, PH7R Ronald

Hello Ronald!
Have You driver for NanoVNA V2Plus4 installed?
https://nanorfe.com/downloads/NanoVNA-QT/CypressDriverInstaller_1.exe

NanoVNA QT works not without this driver.

73 de Vladimir, dl7pga

Thks Vladimir,

The problem is not VNA QT. This program works and find the com port. Somehow Nano VNA Saver is not able to find / see the com port.

73, PH7R Ronald

On 4/14/22 12:05 AM, PH7R - Ronald wrote:
> Thks Vladimir,
>
> The problem is not VNA QT. This program works and find the com port.
> Somehow Nano VNA Saver is not able to find / see the com port.
>
> 73, PH7R Ronald
> _._,_._,_


since NanoVNA-Saver uses pyserial and python, you can independently
check whether all the right libraries/drivers are installed by running
the pyserial "list ports" tool.


at command line:

python -m serial.tools.list_ports




https://pyserial.readthedocs.io/en/latest/

On Thu, Apr 14, 2022 at 03:56 PM, Jim Lux wrote:

>
> running the pyserial "list ports" tool.

Jim, sorry but not familair with Python.

73, PH7R Ronald

On 4/14/22 7:28 AM, PH7R - Ronald wrote:
> On Thu, Apr 14, 2022 at 03:56 PM, Jim Lux wrote:
>
> running the pyserial "list ports" tool.
>
> Jim, sorry but not familair with Python.


Ah - well, if you're running NanoVNA-Saver, you're running python, and
it uses the python pyserial library.

After installing NanoVNA-Saver, you should be able to just run python at
the command line, using the list_ports function as given.

Thks Jim,

I have downloaded v.0.4.0 from github. It is a exe file (NanoVNASaver.x64). If I start the exe file NanoVNA Saver opens but I do not see any option of the cmd line.
Maybe it is mine lack of knowledge :-).

Brgds Ronald

On 4/14/22 1:04 PM, PH7R - Ronald wrote:
> Thks Jim,
>
> I have downloaded v.0.4.0 from github. It is a exe file
> (NanoVNASaver.x64). If I start the exe file NanoVNA Saver opens but I
> do not see any option of the cmd line.
> Maybe it is mine lack of knowledge :-).


Windows command line.  Open the "windows" thing and enter cmd.

It gives "Python not found".

On 4/14/22 1:45 PM, PH7R - Ronald wrote:
> It gives "Python not found".
> _._,_._,_


INteresting - it must be some sort of compiled Python then.

I don't have any windows machines that don't have python on them, so I
can't experiment with duplicating your install.

Thks for your input. I will investigate further.

Hi guys,

I just got my new NanoVNA V2Plus4 today and see the same issue. NanoVNA-QT works fine but the NanoVNA Saver app cannot connect to the NanoVNA serial port. I am running Windows 10 and I followed Jim's suggestion to install Python and pyserial. I am able to see the serial port listed by Python using the serial.tools.list_ports command, but the NanoVNA Saver app still will not connect to it.

Any other suggestions? Does anyone else have this working on Windows 10?

Thanks,
Russ

Hi.
I had the same problem and solved it with the following procedure:
Download the zip file, attached and unzip it. Open the exe file Rapx. Find the cypress drivers (See picture below)
Checkmarks the boxes and press delete.
Poweroff the NanoVNA and detached the usb cable from the computer.
Poweron the nanoVNA and attached the usb cable

Thks, worked! Super

73, PH7R Ronald

Hi, app is detecting suitable serial port but  after clicking "Connect to device" it is collapsing before returning following screen:

Please kindly advice
Best regards
Jakub

-------------------

On 23/11/2022 00:27, Kuba wrote:
> Hi, app is detecting suitable serial port but  after clicking "Connect to
> device" it is collapsing before returning following screen:
>
>
>
> Please kindly advice
> Best regards
> Jakub

Jakub,

My NanoVNASaver shows version "0.5.3 ()".

Perhaps you need to update?

David
--
SatSignal Software - Quality software for you
Web: https://www.satsignal.eu
Email: david-taylor@blueyonder.co.uk
Twitter: @gm8arv

On 11/22/22 4:27 PM, Kuba wrote:
> Hi, app is detecting suitable serial port but  after clicking "Connect
> to device" it is collapsing before returning following screen:
>
>
>
> Please kindly advice
> Best regards
> Jakub
>
> _._,_._,_

It would seem that there's a mismatch between what
drawText was expecting and what was passed. A lot of times, that's if
there's a version mismatch among the various modules (e.g. the software
was changed to pass things differently in both caller and callee, but
somehow you have an old version of one and a new version of the other).

That's fairly odd here, since it looks like "drawMarker" was passing an
int, when the drawText() was expecting an object, etc.

Since drawText is part of QT5 - maybe you've inadvertently updated qt in
someway, so now it doesn't match what NanoVNA-Saver is expecting?

Hi Jim, updated to the latest app version. Now it all works perfectly!
Thanks
Kuba

Thank you. I spent all day yesterday trying to get my 2nd NanoVNA V2 Plus4 with 20220814 f/w working to no avail. I am using a Windows 7 machine. Older VNA worked, new one didn't. This fix did the trick. I am so grateful.

On Mon, Nov 28, 2022 at 06:22 AM, Marc Nordquest wrote:

>
> Thank you. I spent all day yesterday trying to get my 2nd NanoVNA V2 Plus4
> with 20220814 f/w working to no avail. I am using a Windows 7 machine.
> Older VNA worked, new one didn't. This fix did the trick. I am so
> grateful.

What kind of trick, what kind of app version?

I started one new topic... https://groups.io/g/NanoVNAV2/topic/saver_not_usable_under/95289972?p=,,,20,0,0,0::recentpostdate/sticky,,,20,2,0,95289972,previd%3D9223372036854775807,nextid%3D1666006494241305017&previd=9223372036854775807&nextid=1666006494241305017

The app version is the App version is 1.1.208-210 OneOfEleven mod by DiSlord? that is not a "Saver" software - completly different.?

Istvaan I bought a new NanoVNA V2 Plus 4. NanoSaver v0.5.3 or any previous version wouldn't recognize the comport and wouldn't connect. See tonpijpers@... post above. I followed his instructions and now my VNA connects to Saver.