Raspberry Pi 2 Internet Connection by micro-USB - connection

I'm using a RPi 2 and I supply it by the USB port of my PC, I already have made the PC share internet by the ethernet cable. I was wondering if it's possible to establish an internet connection by the same cable that does the voltage supply for RPi?
I have this doubt because I work sometimes with a BeagleBone Black and I can make a internet sharing by the same USB cable that does the voltage supply. Which is a very pratical resource from this platform.

For RPI: The micro USB is only for power supply. You cannot use it share connection or login to RPI. RPIs can be shared internet only by using Ethernet crossover cable. AFAIK there is no particular reason why RPI like that.Most users share internet to RPI by connecting it to router or PC via Ethernet cable.
But for BBB: Yes, you can use the Powersupply cable to share the internet connection and even login in to BBB.

Related

sharing internet from PC to PC

I am trying to share wifi internet from my pc to another pc with ethernet cable. I set sharing wifi and checked the allow other network. And set the IP on the Ethernet LAN to static mode at 192.168.0.1 On the other PC I set it to static mode also at 192.168.0.2 and gateway at 192.168.0.1. but it says no internet access. can anyone provide a solution?
Thanks for the answer
Use "Sharing" in network options.

Connet to Raspberry PI on Extender

So here's my setup. Our home wifi is Verizon, with a router in the living room connected to the incoming coax, with a wireless extender upstairs in my office and another extender in the basement, both of which are also connected to the coax network. All of this basic configuration works fine for our basic wireless needs (phone, laptops, tablets, etc.).
The issue I'm having is that I have a Raspberry PI connected wirelessly to the upstairs wifi extender that runs a small Postgres database that I use for my programming tinkering. If I'm connected on my laptop or PC to that extender, I can use PG Admin or remote desktop to connect to the rPI using its IP address. However, if I'm connected to the main router or the other extender, I can't access the rPI anymore - even pinging the IP address times out. I'm assuming this is because the extender the rPI is connected to is technically a different wifi network than the ones broadcast by the router or the other extender. I'm hopeful that maybe there's some way to configure this setup that I can access the rPI from my in-home network no matter which device I'm connected to, because it's all linked via the coax that runs through the house, but I'm not sure how to make that happen, but I don't have the knowledge in this specific area to know where to adjust my settings.
Anyone have any ideas? I feel like it could either be a simple fix or something that's totally impossible. Any help is appreciated.
The issue was that I had configured both extenders and the router to broadcast on the 2.4ghz and 5ghz bands (different SSID on the 2.4ghz band) for older devices that didn't seem to like the 5ghz netowkr. The rPI was connected to the 2.4ghz network, but my laptop was connected to the 5ghz one. Switching the rPI to use the 5ghz band (or plugging it in to the extender, or switching the laptop to use the 2.4ghz network) made it visible.

Difference between wi-fi router and usb modem devices

Both usb and wifi routers are modes of connectivity.
Is there any difference between the two devices? Is it correct to say both are same?
While the term USB modem refers to any type of data/fax/voice modem device which can be connected to a computer using USB, the term more commonly describes a specific portable USB device that looks similar to a USB flash drive and can be as small as 100 x 35 x 23mm in physical size and weigh only around 25grams . These small portable USB fax modems do not require a power source and can be plugged into any USB port on your PC, notebook, or Macintosh computer and can also be disconnected from the computer without turning off the system. One end of the portable USB modem will have a USB interface, while the other end will have an RJ-11 port for connecting your phone line.
A wireless router is a device that performs the functions of a router and also includes the functions of a wireless access point. It is used to provide access to the Internet or a private computer network. It can function in a wired LAN (local area network), in a wireless-only LAN (WLAN), or in a mixed wired/wireless network, depending on the manufacturer and model.

NM can't find my wifi network

I freshly installed arch linux and I have small problem with my networkmanager. I'm using networkmanager with nm-applet and I see plenty of wifi networks nerby, but just not mine. I have connection when I'm creating hotspot on my phone, I have connection when I connect ethernet cable to this router and my phone see wifi network from this router, but my desktop doesn't.
I'm using adapter TP-LINK TL-WN722N and Netia Spot router.
Answer was pretty simple - I needed to change frequency in my router.

How to connect rfid reader to raspberry pi using wifi?

I am working on a tracking project.
I want to connect several rfid reader(any reader HF,UHF) to Raspberry pi using wifi. is it possible?
It depends of your reader and its capabilities.
Usually readers have Ethernet port but does not support wifi by their own.
So your first task is to connect reader to pc using Ethernet cable and make it work as you like.
Then you need to make your program work on raspberry pi.
Finally you can plug your reader to wifi router. Connect Pi to the same network using wifi dongle and here you go, you have wireless reader.

Resources