I need help to create a c# application for usb communication using cdc protocol. My application is communicating to device by using by using usb communication protocol.Can somebody give me a sample application in c# showing sending and receiving of data using "Communication Device Class" usb protocol.
Thanks in advance
You should use the SerialPort class, which is documented here:
https://msdn.microsoft.com/en-us/library/system.io.ports.serialport
Related
I am trying to make a Windows driver for a bluetooth gamepad, I know exactly what data the gamepad sends via bluetooth, but I have no clue where to start with this project, I have searched far and wide for more information about how to recieve data through bluetooth with WDK, but I have yet to a good source of documentation or a good example. Everything has to be coded in C, I have already setup the basic driver and tested it on the device, all i need now is functionality.
So my questions are:
How do you connect to the right bluetooth device
How do you send/recieve bluetooth data using WDK
How do you emulate a HID gamepad device after parsing the bluetooth data
Any links to documentation, examples or possibly books would be much appreciated.
I will need the ability to communicate with a device attached via USB that shows up as a serial port. Is this possible with cn1? I haven't seen any reference to it. Does the native java import javax.comm.*; work on all platforms?
No, comm isn't portable. You would be able to bundle it into the desktop port but you'd need a different implementation for everything else using the native interfaces.
Before we had builtin support for sockets Steve created a cn1lib for socket support which you can use as a reference to how one would implement streaming data over native interfaces
How can I implement CAN communication in c# windows application. I have to create an application that communicate to the device. In earlier project I used serial port. What will be the major difference between these two.. Am new to this topic.
You need a CAN controller. I would recommend the PCAN USB from PEAK Systems.
Install the drivers
Download the PCAN API from PEAK System web page. (contains C# wrappers)
Use the API in your application to send and receive CAN frames
I would like to use an arduino with a bluetooth module to modify the volume and skip songs on my phone.
All the information I found was about how to code an application that would communicate with a device via bluetooth, which isn't what I am looking for. I want to know what protocol I should follow to connect to an android device via bluetooth like a car radio would do.
My goal is to be able to use my device as a remote to control the built-in music application.
I think you are looking for the AVRCP protocol. Please send more info about your hardware so I can digg a better answer (if you need more, anyways...).
I'm trying to find a way to send a udp broadcast packets through a silverlight application. Most of the research i've done lists that this is not possible through silverlight due to the support for sockets being limited to tcp only. But is there some other way to send a broadcast packet for example through javascript or something that the silverlight application can call?
Silverlight 4 supports UDP for multicast.
Articles / Examples
example of using UDP multicast support in Silverlight 4
blog entry from the System.Net Team
Classes
UdpAnySourceMulticastClient
UdpSingleSourceMulticastClient
The only plugins that support UDP client sending is Unity3D or Java. The problem mainly is when you use UDP you also need NAT punchthrough usually. So it is more complex (need a third party facilitator) since typically it is also peer to peer not just client-server.
You might be able to rig something with a proxy with Unity3D or Java but that would be a serious slowdown passing it into silverlight.
Silverlight and Flash only support TCP sockets currently.. Flash 10 does have some support for RTMFP which is UDP based but that is primarily for flash media server integration.
A response on the support of UDP in Silverlight: http://silverlight.net/forums/t/20249.aspx
You'll probably need to create your own custom browser plugin to do that for you.
As far as I know it isn't possible to use UDP with the major browser plugins, Flash, Silverlight etc. TCP is the lowest you get.
Browser based JS does not give programmatic access to UDP or even TCP. That is why you have AJAX, HTTP binding, Comet, XMPP Bosh etc. They try to emulate TCP's features with HTTP...
It appears Flash supports UDP as of Flash 10. I haven't tried it out but it sounds like it is not a low level API, only through RTMFP.
http://www.flashcomguru.com/index.cfm/2008/5/15/player-10-beta-speex-p2p-rtmfp
http://justin.everett-church.com/index.php/2008/05/23/astrop2p/
Flash Player 10.1 supports P2P with Adobe RTMFP and Stratus service. Stratus service is a Beta hosted rendezvous service that aids establishing communications between Flash Player endpoints. Unlike Flash Media Server, Stratus service mainly focuses on network address lookup and NAT traversal services for Flash Player endpoints, instead of supporting media relay, shared objects. This kind of service will also be integrated into next version of FMS.
No there isn't. Most browsers limit you to HTTP or FTP so calling out to Javascript isn't going to help either.