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As I remember doing it, NanoVNA-App does not use Dfuse mode. Try using NanoVNA-App without running Dfuse. Just use the NanoVNA-App by itself. Run the app (with the correct port settings) to connect to

What "same" problem?

Great Thread .... starting to understand this stuff ....:) -- Cheers, Ian Melbourne, Australia

Does DfuSE find it when it shows up as STM32 BOOTLOADER? - If so it's only a matter of selecting the firmware file with choose, then clicking upgrade. I don't see that as any less friendlier :)

Mike, Could you perhaps help me in this? I was told to update the firmware in mine, but today I tried for about three hours and had no success. For some reason the driver doesn't seem to work. I

There is a Labview package for the NanoVNA V2+ and V2+4 written by joeqsmith. It is discussed on the eevblog at the link below which is the most recent discussion. He originally did not release this

This post is about measuring low resistances using the S11 method and testing the ESR of capacitors. It is surprising how well the NanoVNA can measure resistances that are much higher or lower than

You started a new thread so it is not clear what the "same problem" is.

I’m having exactly the same problem and this only started following the latest update V 1.0.45

I enjoyed the discussion and thank the contributors. Think about how load impedance was measured in the "old days". The slotted line technique was used in practice before the Smith Chart was invented.

I have a general question. What is the deal with the # symbols in the subject line, in this case, "#features #nanovna-saver"? Is it some kind of a secret code? 73, Zack W9SZ

@mirskym thank you for you thoughtful response. I will give it a try and let everyone know the results. 73 de W6MGV Coxsackie, NY, USA

Bundle of thanks for your reply. The NanVNA app seems to work for continuous recording (s2p along with s1p) up to 1 GHz, however I am using NanoVNA v2 and the measurement frequency of interest is

I had the same problem. This guide helps you through it. /g/nanovna-users/files/Absolute%20Beginner%20Guide%20to%20The%20NanoVNA

Good article. The author Steve Sandler is a well known industry authority on low impedance measurements. The 2-port shunt measurement method is akin to 4-terminal ohmmeter measurements of very low

The proper driver should be downloadable from here: https://www.st.com/en/development-tools/stsw-stm32080.html

Now that we’re talking about measuring low impedances, I thought I would share this nice link on the 2 port shunt through configuration.

Had a similar problem. You need to install the driver for the defuse demo program so that communications can be established between the program and the nanovna. This driver is DIFFERENT from the one

For me, this is not helpful. The device is populated correctly and without fault, in the Device Manager USB Devices folder as STM32 BOOTLOADER... the device does not appear in the Defuse Demo dropdown

Did you ever figure this out. I'm in the same condition. Prior to installing the driver both the basic and WCID drivers via zadig-2.5.exe, I saw a USB device in the Windows 10 Device Manager, as STM32