开云体育

Not able to connect to any apps. PC, Web, and Android. Used OTG Cable, USB a to c on PC
Version 1.1

What am I missing
Tks,
RogerC

On a PC, go into Device Manager and verify if the PC is detecting the NanoVNA port when the connected NanoVNA is powered on.

You should see something like “USB Serial Device (COMx)” where x will be the COM port number.

If you do not see a the above message, try another USB port and also another USB cable.


--
Bernie Murphy, VE3FWF
*Real* radios glow in the dark

Roger, we will need a little more info to help you effectively.

Which OS and version are you using on your PC? Win10/11? Win7? Win8? some flavor of Linux?
But a couple of first notes:
1. Don't use an OTG cable (those are for the USB micro-B connectors). A normal USB-A to C data (not charging) cable is required. For USB-C, OTG is normally a software function, but if your cable somehow does force OTG, it is the wrong mode for nanoVNA.
2. Assuming you are using some version of Windows, open Device Manager. Then expand the line that says "Ports (COM & LPT)" so you can see the individual devices. Plug in the USB cable and turn on your nanoVNA. You should see a new COM device appear. Note its identifier (e.g. COM6, COM10). When you turn on/off the nanoVNA, this device should appear then disappear. When you see this happening, you know that your cable and nanoVNA are correctly communicating with the computer. Only after that should you try to connect with a software program, and you need to select in that software program the identifier of this COM port and tell it to connect.

I hope that is helpful.
Stan KC7XE

OS is Win 11 Pro
I've changed USB-A/usb-c cables that was the first issue. I connected my phone to this cable and saw data, I believe the cable I'm using can communicate with the NanoVNA. I'm not seeing the Port COM device connection from the NanoVNA.

I went through the STM32 Bootloader installation and the STM Device in DFU Mode is showing up under the USBC grayed out. Attempting to connect out of DFU Mode, returns an unknown USB Device message. So in either mode can not connect to the NanoVNA. Attempted to change the configuration connection, both Serial (Serial speed 3800) and USB.
Thank you for your feedback, Stan and Bernie!

An update, was able to update to Version 1.2 still not able to direct connect to any of the PC apps