I'm developing a client/server app for my Android phone (server side is Java based), and what I need now is an UDP connection over USB.
I tried adb forward, but it give me only TCP protocol with ridiculous latency (6~800ms), so I need UDP.
I found adb ppp command, but I'm not able to get it working on my Linux machine (updated Debian). I tried tons of examples found looking for adb ppp connection like
adb ppp "shell:pppd nodetach noauth noipdefault /dev/tty" nodetach noauth noipdefault notty 192.168.254.2:192.168.254.1
no lucky.
So, how can I give UDP power to my app?? There is some possibility without Android tether and root permission both side (Android and desktop)? I'm not interested in internet, BT or WiFi solutions. Even because Android tether request me desktop root permission to keep adb working, and I need TCP forward too.
Thank for help
The solution to your problem might be the USB Tethering. Go to the Settings then Wireless then Tethering & portable hotspot. after that turn on the USB Tethering. This option only shows when USB cable is plugged in your device and its connected to your notebook. Recent android versions place this option in Settings -> Tethering & portable hotspot..
Related
I'm trying to connect a ToupTek XCAM4K8MPA camera to a Linux Ubuntu 20.04 64-bit computer to use with their provided ToupLite software for microscopy image capturing. The camera comes with a USB 3.0 cable, HDMI cable and USB WLAN adapter.
I have managed to set up the ToupTek ToupLite software (Link to manual, Link to download page) which, as far as I understand, comes with the SDK included. I have then connected the camera via USB 3.0 and HDMI cable to the computer, but ToupLite shows No device as in, the camera is not recognized or connected. I have tested the camera by simply connecting it to a computer monitor via HDMI cable and it works, but for capture I would like it to be connected to a computer and the WLAN or Wi-Fi connection solution is not really a good option.
Perhaps someone has some ideas of what I am missing.
Note: Relevant tags include touptek, touplite, microscopy
I ended up using the WLAN connection. Made a non-changing IP address for the camera and the ToupLite software recognizes that it is on the local network.
I am trying to use WebRTC on an Android App to stream to a media server running on my workstation using a USB tethering connection. I see have good signaling, with an offer and an answer that seem to make sense with respect to the IP addresses, but I do not get any UDP streaming traffic.
Is there something in the Android WebRtc library that would omit this rndis0 interface? Over Wi-Fi, everything works as intended, but not if the tethered ethernet is the only connection.
I develop on my tablet using android studio.
The tablet is connected to the computer by wifi using
adb connect <ip_andress>:5555
My application contains listeners for USB devices attached/detached.
But unfourtunately, when I connect/disconnect usb device to/from the tablet, the adb connection is getting killed, and I can no longer see the device under "adb devices".
It is not a adb-connection-by-wifi what gets killed. It is just that USB enumerations affect the sys.usb.* system properties which on many devices is causing restart of adbd regardless whether it's being used over USB or tcpip.
Do grep "stop adbd" /init*rc to see what I mean.
You could either comment out those stop adbd lines or just disconnect the USB cable before running your adb connect command.
I was never able to connect my cellphone with my computar through wi-fi.
I had already given up. I followed all the instructions and tips, and nothing worked.
Finally, I did what no one said to do.
I've connected the phone to the WiFi network provided by the cable modem itself and not to some (not all) additional networks that are included in the router.
At home I use one of these networks, because I use a Deco Tp-Link router, which propagates the signal to my entire house, but this network is NOT compatible with ADB. It does not identify it as belonging to the same network.
After this, I use the normal procedure described here.
a) Connect cellphone with a USB cable
b) Find the IP_Phone depends on system in the cell phone. Here I use Settings, About Phone, Status and IP address.
c) Run the following adb commands in Command Prompt (Windows) or Terminal (Linux), where IP_Phone is the IP above mentioned. Normally adb.exe is an executable stored in computer path. adb is already included in Android Studio package.
adb tcpip 5555
adb connect IP_Phone
d) Now disconnect USB cable and it's ready. The cellphone model continues to appear in the status line in the top of Android Studio.
-/-
The best wifi is that defined in Cable Modem. It, unlike an any account defined in my router, answers to a ping command.
ping IP_Phone
Disconnect the usb cable just before running adb connect <*ip_address_of_your_phone*>
I'm playing with Raspberry Pi 3 Model B and Android Things. I was able to configure everything (connect Pi over Ethernet, then reconnect over Wi-Fi with Android.local) and debug the app. However it's not convenient sometimes to debug over Wi-Fi when I travel and I have to change Wi-Fi networks or don't have Wi-Fi connection at all.
I know there is serial debug console, but it seems to be for getting logs and shell commands, not for debugging.
Any chance to have direct debugging over USB cable just like any other Android device like smartphone/tablet?
How to debug Android Things device over USB?
Briefly: you can't do it with Raspberry Pi.
Why not?
Let's look at the pin specification of Raspberry Pi micro USB (J1):
where
1: power
2: D- (data out), not connected
3: D+ (data in), not connected
4: NC, not connected
5: GND (ground)
So summing up the above said: no data pin connection - no adb. You can only power your RPi over micro USB.
Any chance to have direct debugging over USB cable just like any other Android device like smartphone/tablet?
Use another board. In fact, any board that has USB OTG and is supported by Android Things would allow debugging over USB, just as a "regular" smartphone/tablet.
And ironically, by the time of this writing, all the supported hardware platforms would fit except for Raspberry Pi :)
The NXP i.MX7D development board has the same pins as the Raspberry Pi for development, however it uses USB-C for power and ADB.
Highly recommend it over the Raspberry Pi
https://developer.android.com/things/hardware/imx7d.html
(source: android.com)
Another option is to setup Wi-Fi access point on your laptop and allow the Pi to connect to it. I have not tested it but it should work.
This is technical question to check the possibilities of the scenario. Is it possible to use Nokia phone's (Lumia, N9, symbain phone, S40) 3G data connection with a Android tablet pc?
Or any way to use phone's 3G data connection with tablet pc?
I have a unlimited data connection for my phone. But I don't use it that much. So I'm planning to use it with the tablet pc.
yep its possible easily if :
1. your tab is rooted
2. your tab supports usb host mode or otg mode (you could either check it on net or download usb host diagnostics) (just click start diagnostic)
procedure
Downoad ppp widget
configure your apn according to pc suite settings
then plug in your phone via usb on nokia pc suite mode
now wait 10s and click connect
you are now done
(pls switch your wifi off as ppp widget creates virual wifi for your tab)
any inquiries contsct rld0989#gmail.com (don't be rest less I only check my gmail once a day)
Yes, it's possible to use your phone as a modem, connected to the tablet via a USB cable, as long as you have
(1) an APN from your network operator to make a data connection via their network, and
(2) suitable device drivers for the phone. On Windows, smartphones are plug and play, but I don't have any experience using them with Android.
On the tablet, you also need some software to control the modem - something like the Mobile Broadband Connect 3.0 application listed on here
You can write a simple connection app yourself using the Android Telephony Manager.
Alternatively, you could connect manually, using AT commands with a suitable AT command program (in Windows, it would be Hyperterminal). This thread describes a possible equivalent for Android.
Standard AT commands to make a data connection are described in the 3gpp TS27.007 specification.
There are a lot of variations for different manufacturers, but making a simple connect should be possible using the standard commands.