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I would really like to connect my new NanoVNA to my laptop using a wireless connection. It doesn't seem likely that a bluetooth adapter would work at the VNA end, though. I keep wondering about the wireless mini keyboards that use a USB "dongle" that looks like a bluetooth dongle, but isn't. This would have to be two little devices with USB connectors that talk to each other "automatically" and not need any manual intervention like a mouse click to make the connection. Sort of a non-discriminatory bluetooth that would always accept the first connection attempt.

Does anyone on here know of such a device or system? I've been trying with google but I can't seem to come up with the right search terms. And maybe there is some reason why the NanoVNA wouldn't support such a connection anyway. Maybe one of the firmware developers could find a way to add a wireless connection feature to the system. Giving it a fixed, non-routable IP address to use a USB wifi adapter might be a good way.

Thanks for any help or suggestions!

Doug, K8RFT

I keep wondering about the wireless mini keyboards that use a USB "dongle"
that looks like a bluetooth dongle, but isn't.

Bluetooth has profiles, as does USB, so a bluetooth keyboard advertises as HID, instead of SPP,
so would not be recognized as a virtual COM port in Windows.

I researched this a little; of the few systems-on-chip with bluetooth,
I found none with USB host support, so a small e.g. PARTICLE Xenon
or ESP32 board wired to a "Mini USB Host Shield" by spi
would be the cheapest DIY "solution"



There are BC04-B demo boards, which behave like modems (AT commands and all) but USB is not host.

Hi Doug

I did it a couple of year ago with a different VNA. I used a wireless USB server. I think the NanoVNA would work this way round as well.

to Operate VNWA2 and VNWA3 Remotely Wired or Wireless.pdf <> copy paste the link into a browser if I does not work

May to day some smart method using the small wonderful Wifi devices with ESP8266 can be developed to do I bidirectional USB link but that is far beyond my skill. I am a hardway hobbyist ?



-----Oprindelig meddelelse-----
Fra: [email protected] <[email protected]> P? vegne af DougVL
Sendt: 20. oktober 2019 01:11
Til: [email protected]
Emne: [nanovna-users] Wireless USB?



I would really like to connect my new NanoVNA to my laptop using a wireless connection. It doesn't seem likely that a bluetooth adapter would work at the VNA end, though. I keep wondering about the wireless mini keyboards that use a USB "dongle" that looks like a bluetooth dongle, but isn't. This would have to be two little devices with USB connectors that talk to each other "automatically" and not need any manual intervention like a mouse click to make the connection. Sort of a non-discriminatory bluetooth that would always accept the first connection attempt.



Does anyone on here know of such a device or system? I've been trying with google but I can't seem to come up with the right search terms. And maybe there is some reason why the NanoVNA wouldn't support such a connection anyway. Maybe one of the firmware developers could find a way to add a wireless connection feature to the system. Giving it a fixed, non-routable IP address to use a USB wifi adapter might be a good way.



Thanks for any help or suggestions!



Doug, K8RFT

Probably the easiest solution would be to use a Pi Zero W attached to the VNA and then connect to it remotely with your method of choice (VNC, etc.) With the Zero W you could even use an ad-hoc wifi connection on your phone or tablet while in the field. I look forward to other solutions (like the one mentioned), but if you want to get up and running with the least development time and a moderate cost then this is probably it.

Cheers,
John VA7JBE

Great idea John!
I guess with some effort (netcat?) raspi could pass nanovna's serial port over wifi to the host PC.

p.s. seems there are free USART1 pins 30,31 on STM for some BT solution, but as you said, it needs too much efforts comparing to rpi zero w.
Zilvis LY2SS

I remembered and found a USB Bluetooth adapter in my gadget bag. I connected it to the NanoVNA with a USB-OTG cable and usb-micro to usb-C adapter. Scanning for bluetooth devices with my Android v8 phone did not find any devices. I didn't expect the NanoVNA software to have a "host mode" connection and that may be why it didn't work. I was (am) hoping someone might know of a wireless replacement for the USB cable that goes from PC to NanoVNA. But it looks like the chances are very slim. In my case, it's not worth a lot of effort or expense just to save some inconvenience, although if something becomes available it might be very popular.
There may be a way to add such a communication capability to the NanoVNA, but it's probably a major effort and not worthwhile. Unless there turns out to be a lot of other requests for it!

Doug

Hi DougVL -

I was (am) hoping someone might know of a wireless replacement for the USB
cable that goes from PC to NanoVNA.

I think there is no 64-pin STM32 micro that supports USB OTG,
so a bluetooth "dongle" that supports SCC profile and USB OTG is wanted.

although if something becomes available it might be very popular.

There are quite a number of wireless adapters with actual serial ports
AKA wireless device servers. Fewer with USB appear to be mostly for printers,
which is a different profile than for virtual COM ports.

There may be a way to add such a communication capability to the NanoVNA,
but it's probably a major effort and not worthwhile.
Unless there turns out to be a lot of other requests for it!

Moving the entire user interface to smartphone seems (IMO) desirable.
It might be possible to wire a so-called USB host shield into nanoVNA
that could drive existing bluetooth SCC dongles,
but would require stripping out existing function to add firmware support.

Particle Xenon uses a Nordic nRF52840 chip,
which has more capable STM32 than in nanoVNA and includes bluetooth,
so might make a great wireless nanoVNA-H 2.5 or 3.

There are quite a number of wireless adapters with actual serial ports
AKA wireless device servers. Fewer with USB appear to be mostly for printers,
which is a different profile than for virtual COM ports.

An Amazon customer reports that the US$65
Hawking HMPS1A works with a USB to serial converter.


Power in is 5VDC, could be portable by USB power bank.