Keyboard Shortcuts
ctrl + shift + ? :
Show all keyboard shortcuts
ctrl + g :
Navigate to a group
ctrl + shift + f :
Find
ctrl + / :
Quick actions
esc to dismiss
Likes
Search
Android app cable not working!
Got the cable today, did NOT work. This is number two. This cable is
an OTG data cable USB-C (nanovna) ti Micro-USB (samsung android phone) NanoVNA Web App from play store says "no device found" when press connect. What the ^%$ to do now? Shouldnt any OTG data cable work??? Any advice appreciated! On Sun, Feb 16, 2020 at 4:06 PM Kayak via Groups.Io <kayak1176@...> wrote:
|
On Mon, Feb 17, 2020 at 07:10 AM, Kayak wrote:
" NanoVNA Web App from play store says "no device found" when press connect." ========================================================== As I warned you in your previous thread, "the apk installation from the Playstore is experimental and may not detect the NanoVNA even if you have the proper cable. The Web client at usually connects and works, but you need to have internet access to use it." The fact that you were able to download the app from Google Play Store means that your phone meets the version requirements, however; the app is imperfect (read experimental) and some phone models will not connect with it regardless. Short of using the Web client if you have internet access, you either need to change phones (not sure which models are guaranteed to work) or remotely connect using a PC. The app is a free user contribution and he is only able to test it on the configuration he owns. When it works it works, when it doesn't he pretty much responds that it is experimental. I tried a number of Android phones and tablets with Android version 7 or greater. Most will connect using the Web client but only one android tablet was able to connect using the android app. - Herb |
Hi
When opening your link to the USB cable (s ee copy below) in the German Amazon store it does NOT state "OTG" capability. May that's helpful info? USB C to Micro USB OTG Cable, CableCreation 0.65 ft Type C Braided Cord, 480Mbps Compatible with MacBook (Pro), Galaxy S8, S9, S10, Pixel 3 XL, 2 XL, Android Devices, 0.2M/ Space Gray |
Thanks Herb I must have missed that. This time, I went to your web app
toggle quoted message
Show quoted text
online with my samsung (j7 prime) and still "no compatible devices found".. This is the cable (below): I am not sure what to try next? pretty frustrating, because the phone screen is much larger and I'd like to make use of it rather than the nano screen, and the pc (which does connect, just confirmed that now with nanovna saver) is not portable. USB C to Micro USB OTG Cable, CableCreation 0.65 ft Type C Braided Cord, 480Mbps Compatible with MacBook (Pro), Galaxy S8, S9, S10, Pixel 3 XL, 2 XL, Android Devices, 0.2M/ Space Gray On Mon, Feb 17, 2020 at 11:36 AM hwalker <herbwalker2476@...> wrote:
|
On Mon, Feb 17, 2020 at 09:07 AM, Kayak wrote:
I went to your web app online with my samsung (j7 prime) and still "no compatible devices found" ============================================================== Kayak, The Samsung (j7 prime) should at least work with the web app online. These are the developer's instructions from : 1. Enable flag: chrome://flags/#enable-experimental-web-platform-features 2. Access to . 3. Connect your NanoVNA to USB port. 4. Click [CONNECT] and select the device. - Herb |
On Mon, Feb 17, 2020 at 09:23 AM, Ronan Daly wrote:
" I use a generic unbranded one that came with a chinese tablet and it works fine with my Galaxy S7." ==================================================================================== Ronan, Have you tried the NanoVNA app from the Google Play store with your S7? That would let Kayak know if he might expect the NanoVNA to work off-line with his j7 prime or not. - Herb |
Thank you, I wasn't enabling that flag (didnt see the documentation,
toggle quoted message
Show quoted text
moving too fast and assumed the s/w would provide a dialog about any settings, my bad) So the flag is set in the android chrome, confirmed, restarted android chrome, same error "No compatible devices found". I repeated the process on a clean LG Aristo 2 phone, same result. Now do you suppose I should consider a somehow incompatible cable? Cant really be anything else that I know of. The port communicate with the pc. As recommended in the documentation on github (which I would probably never have found) I ordered a OTG usb-c to usb A adapter cable. Chose this one, amazon.com/Anker-Adapter-Converts-Technology-Compatible/dp/B01COOQIKU Thanks for the replies and help. Got to be something simple here... On Mon, Feb 17, 2020 at 12:21 PM hwalker <herbwalker2476@...> wrote:
|
On Mon, Feb 17, 2020 at 05:49 PM, hwalker wrote:
Yes the app works fine. |
As I understand this, if a cable can communicate the phone with a PC, it cannot be used with a phone. A "normal" cable is due for connecting the PC, as a host, with a peripheral, being it a disk, a phone or the nano. For using a phone as a host you must use an "On The Go" cable, that forces the phone to behave as a host, being the other side a disk or the nano to act as the peripheral.
toggle quoted message
Show quoted text
For the guys that uses a TV dongle as a V-UHF receiver connected to a PC, there is an APP that works in a phone and in this case you also need to use an OTG cable. Regards, Ignacio EB4APL El 17/02/2020 a las 19:06, Kayak escribi¨®:
Thank you, I wasn't enabling that flag (didnt see the documentation, |
I use a generic unbranded one that came with a chinese tablet and it works fine with my Galaxy S7.--------------------------- Same with me. I used the charging cable that came with my Xiaomi Mi9, with the USB C connector connected to the NanoVNA, and the USB A connector connected to this adapter bought on Amazon (sorry, I do not have anymore the URL...). Worked at the first try. Android version is 9. Alberto -- /*73 Alberto I2PHD* <<< >>>/ |
weird. I just received my THIRD OTG adapter cable and two USB-A to
toggle quoted message
Show quoted text
micro-USB cables, and tried the supposedly always-compatible nano web version on the J7 Prime and the LG Aristo, no joy whatsoever. 'no compatible device found' doesnt work in the app either. Two apps Three OTG adapter caboles Two phones Two USB cables Zero luck. On Tue, Feb 18, 2020 at 1:48 PM gary <w9td@...> wrote:
|
Dumb question: have you tried using TeraTerm on a PC to talk to your Nano via the console?
toggle quoted message
Show quoted text
If that works, then refer to the following thread and see if your phone can talk through a terminal app... /g/nanovna-users/message/9978 On Tue, 18 Feb 2020 at 6:15 PM, Kayak<kayak1176@...> wrote: weird. I just received my THIRD OTG adapter cable and two USB-A to micro-USB cables, and tried the supposedly always-compatible nano web version on the J7 Prime and the LG Aristo, no joy whatsoever. 'no compatible device found'? doesnt work in the app either. Two apps Three OTG adapter caboles Two phones Two USB cables Zero luck. On Tue, Feb 18, 2020 at 1:48 PM gary <w9td@...> wrote:
|
Before I go to that testing, my Windows 10 PC communicates fine with
toggle quoted message
Show quoted text
the Nano using nanovnasaver... but two android phones, three cables and using teh web app as well as the android app, always the same "no device found" error. On Tue, Feb 18, 2020 at 6:49 PM Larry Rothman <nlroth@...> wrote:
|
two android phones, three cables and using the web app as well asSadly, some Android devices for which OTG connects to e.g keyboards or flash drives will not work with virtual COM port devices, but you could also try nanoVNA with this Serial USB Terminal app using its CDC device setting Generic OTG connection checker: |
Kayak,
it seems to me, that you place the OTG adapter at the NanoVNA and not at the smartphone. Why do you need otherwise the"...USB-A to micro-USB cables.."? You need an OTG adapter plugged into the smartphone. The OTG adapter has a USB-A socket, into which you plug the USB-A to USB-C cable, which comes with the NanoVNA. -- Joerg, EX-DB2OO |
IIRC, the only difference in an OTG cable is a jumper between two pins of
toggle quoted message
Show quoted text
the connector that plugs into the phone or tablet. Mike N4MHO On Wed, Feb 19, 2020 at 10:20 AM Joerg-ex DB2OO <exDB2OO@...> wrote:
Kayak, |
I just tested it successfully with a Galaxy S9 running Android 10 and the NanoVNA WebApp.
After you have connected the NanoVNA via USB OTG and the cable, that came with the NanoVNA, just start the App. You will get a question, that needs to be confirmed. Please see on the other picture the connections. -- Joerg, EX-DB2OO |
Yes, pins 4 & 5 are shorted on the micro USB to tell the phone or tablet to switch to host mode and supply 5V output.
toggle quoted message
Show quoted text
On Wednesday, February 19, 2020, 2:50:02 p.m. GMT-5, Mike Murphree N4MHO <mike@...> wrote:
IIRC, the only difference in an OTG cable is a jumper between two pins of the connector that plugs into the phone or tablet. Mike N4MHO On Wed, Feb 19, 2020 at 10:20 AM Joerg-ex DB2OO <exDB2OO@...> wrote: Kayak, |
to navigate to use esc to dismiss