I am newbie to Colibri boards. I am using WINCE7 in my colibri T20 board. In this board every time I connect my modem via USB, I have to make settings in Networks and Dial-up connections. I want to make the connection automatically on start-up. For this I can make settings using registry file but Still I need to open my connections in Networks and Dial-up connections and click connect button. I can't figure out how to automate this thing. So, please help me to automate my modem connections. Thanks
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I am building a project utilizing Wifi on the ESP32 module. Using RTOS, I am running a web server on 1 core and a web client on another core. This works very well and I can access the web server remotely via my browser and the WiFi provided IP address. The Web client reads some sensors and sends the data via WiFi to my database. All good and everything works as desired.
Now I need to do the next step and move beyond the reach of the WiFi and reproduce the same result via 3/4G cellular. I looked at the "easy" solution to use an industrial 3/4G WiFi router and simply keep what I have. Cost of these "industrial" type routers are on the high side, where as 3/4G module which also include a GPS chip are around half or less. Problem is that I cannot get my head around how I will "replace" my current WiFi functionality with one of these modules. The modules seems to expect you to connect via serial (rs232) and using modem AT commands establish a connection to the internet. Question is, after connecting to the internet, how do you continue to have "network functionality" same as with the built-in WiFi? Is there some library that will do ethernet over the serial port? Can I still have the WiFi and the "serial ethernet" running at the same time or switch between the two?
Thanks!
I have a Windows 7 / 8.1 Laptop in a docking station connected via 2 networkadapters(LAN & WiFi) to 1 private network.
Now an application should connect to a Server inside this private network but first prio should have the LAN adapter. If the laptop gets removed from the docking station it should switch automaticaly to the WiFi adapter without losing connection or TCP packages.
I'm at the opinion that not the application layer is responsible for that. The switching and TCP packet resending should be managed by the OS.
However I don't know how to setup Windows for that, any help is appreciated.
Go to your network adapters (Control Panel ->..) --> (then press alt for menu bar) -->
In the following settings you can change the order / priority of the adapters:
I dont know if connection can changed without losing connection or TCP packages shortly, cause Windows normaly says: I have a connection - why i should also hold the second active ?
Therefor you can look at the energyoptions of the pc for standbytime of the wifi-adapter and set it to highest performance, but i dont know if this will help properly.
I've got my CC3000 Wifi shield and Arduino Uno working as intended using the several libraries, including the aRest.h library. In order for me to control the Arduino from anywhere across the web, I configured the port-forwarding settings on the router to address the Arduino via the routers ip address.
My question is this: If I had a multiple Arduino modules/devices that relied on two way communication (client/server), how is the setup configuration automated for each device so that I could target a specific Arduino with regional data? I don't expect the end user to know how to access the router and configure port forwarding.
I hope this makes sense, I'm a newbie to the world of micro-controllers, but have had some success with progress as of late
You should be able to make a simple way to setup the Wifi, when this job is done you connect via socket so a socket server ( python,node,etc... ) and this will avoid any port-forwarding.
You will not need to care about all this messy tasks, you can have as many as you want arduino in the same network and access from the internet.
I am working to create a wifi connectivity for a windows ce 7 device using connection manager. I am new to wince. Can anyone suggest how to establish a connection with a network. I actually wanted to have a list of available networks and to select a network from that. Please help me out in this situation. Awaiting your valuable responses. Thank you.
You mean listing all the available wi-fi networks and then connecting to one of them?
Do you need to have a UI for this (to enter the wlan password etc.) or you'll provide your own UI and just need low-level function to activate the connection?
I have a application which I suspects to get into problems because network nodes closes its sockets to various other servers it communicates to.
I would like to mimic that behaviour by shutting down one or severel connections that can be seen in netstat.
I'm not an expert in networking on OS level, so this question may be stupid, if so do you have any other suggestion on how to mimic the situation?
Before attempting to simulate the problem, you can diagnose the situation with certainty by using Wireshark or, on *nix, tcpdump. You should be able to capture the traffic and observer whether one of the server(s) is sending you a RST or not.
If you are receiving RST then this may be due to the servers themselves (time-outing and closing the connection while waiting for you to send them a response or data, or closing the connection because of server bugs or load limits), to your ISP's network equipment, or to your own network equipment (e.g. your wireless link going up and down.)
Disconnecting your router, network cable or wireless interface can simulate to various degrees connection issues that you can encounter at any time when talking to your servers. Disconnecting your PC's network cable should simulate a forceful closing of the connection with RST, whereas disconnecting a cable between you and the internet, but not the cable that directly connects your PC (e.g. disconnecting the cable between your router and your cable/DSL modem, or disconnecting the cable/DSL modem from the cable company's cable/telco's wall jack) will allow you to simulate timeout conditions.
You can use TCP View. You can view all the connections from your machine to another, or within the same machine. You can close a connection, thus breaking the connection.