I am trying to connect 2 devices together using a datagram connection but so far it only works over localhost so I need to find the IP of the device to open the connection but I don't know how to do this. Can anyone help me?
http://wiki.forum.nokia.com/index.php/How_to_obtain_mobile_IP_address_in_J2ME
Related
I have an Ubuntu 18.04 server on a laptop that has bluetooth adapter. I also have a led strip from China which also has a bluetooth adapter. I can control my led through an app on my phone.
Is there any way to successfully connect to the led strip with my linux laptop and control it?
If so, how could I know which code / key (or I don't know how this bluetooth control works, sorry) is assigned to a color? So basically, I don't know what command should I send to the strip.
Can anybody please write an example program for me?
I tried the rfcomm, bluetoothctl and bluetooth-sendto but they didn't work. :(
Hope we can solve my problem.
You'll need to reverse engineer your device :
with little research I found this
http://nilhcem.com/iot/reverse-engineering-simple-bluetooth-devices
I want to connect my flutter app to node server locally through my real device.I have seen many solution but still didn't get any clear picture.can anyone elaborate the steps to connect
you have two ways to do that:
1- if your mobile and computer - which contain (node.ja and database) - connected at same wifi, so, you should just go to CMD in your computer and type (ipconfig) and try to find the ipv4 for (wireless) or wifi, after that just in your mobile you can access the api by just replace (localhost) or (127.0.0.1) with your local ip which your found in cmd.....
or if you don't using wifi, you can just run your mobile hotspot, and connect your laptop with it by wifi, and also follow same steps as above...
Device must be able to connect to localhost:<port> but to make this happen connect your mobile to computer via usb or connect over same wifi connection.
After this hit chrome://inspect/#devices and port forward localhost: to so now you can easily connect to localhost:<port> on your mobile phone.
Refer to image below and for more details check out the insightful medium blog by Neeraj Moudgil
https://medium.com/#neerajmoudgil/how-to-test-localhost-node-apis-on-android-device-253fcdd32c18
I am trying to open a port for my unity multiplayer game. I have a arris router, google wifi, and a windows 10 deveice. When setting up port forwarding on the arris setting page, it gives me an error “invalid IP address” How would I forward a port from the arris, to google wifi, to my windows 10 deveice, then finally to the internet so I can set up multiplayer across different networks. Anyone who can help even a little bit is greatly thanked. Also, would there be a faster way to open a port with the set up I have? Any tips are greatly appreciated.
I've been trying to find to help in a little project I've been working on.
I want to connect my ARM board, to an x86 device with PCIe, and use socket API.
I have an ARM based board, which I'm connecting to a PC using PCIe, and I want the make the PC recognize it as an Ethernet device.
There's a lot of reference code and docs for the PC side, but I can't find anything to make the ARM "act" as an Ethernet, as the host side needs some parameters from the HW, such as MAC addresses, MTU etc...
So, what I'm asking:
Am I right in my assumptions, that once I'm able to provide the host with some Eth parameters, then the Linux on the host will populate an Ethernet device?
If 1 is yes, than what are the params?
Most importantly, I'm looking for doc or sources, so any lead would be greatly appreciated.
Thanks,
Eyal
Main Problem
My mobile phone is already paired with my HC-05 bluetooth module. But the problem is it is not connected.
Do you have any solution about this kind of problem guys?
Need help. Thank you.
It will connect only when requested, for example, while using a bluetooth terminal application. Try searching for a bluetooth terminal app in the google play store, install, then you should be able to connect.