Hello Everybody:
I have tried to use System.Net.IrDA to create an IrDA application to control my home air conditioner. The idea is that first I learn the controlling signal by reading IR from controller and then send the signal out by using my iPAQ 5500. The problem is that I use IrDAListen to listen to the socket but can't find the IrDAClient even if the controller is only 1cm from the iPAQ's IR port; I also use IrDAClient to find a device and can't find any. Can anybody here tell me what I have done is wrong?

Environment: VS.NET 2003, iPAQ 5500, PocketPC 2003. Compact Framework 1.1 SP1.

Thank you.
Alex

The server code looks like this:
#region IrDAListener

irDAListener = new IrDAListener("IRClientDemo");

irDAListener.Start();

Socket socket = irDAListener.AcceptSocket();


IrDAClient irClient = irDAListener.AcceptIrDAClient();

Debug.WriteLine(irClient.RemoteMachineName);

StreamReader sr = new StreamReader(irClient.GetStream(), System.Text.Encoding.ASCII);

Debug.WriteLine(sr.ReadLine());

sr.Close();

#endregion

The client code looks like this:

#region IrDAClient

IrDAClient irDAClient = new IrDAClient();

IrDADeviceInfo[] devsAvailable = irDAClient.DiscoverDevices(5);

foreach(IrDADeviceInfo devInfo in devsAvailable)

{

Debug.WriteLine("Device ID: " + devInfo.DeviceID + ", Device Name: " + devInfo.DeviceName);

}

#endregion

"Alex Dong" <adong@REMOVE_MEobjectivasoftware.com> wrote in message
news:(E-Mail Removed)...

> Hello Everybody:
> I have tried to use System.Net.IrDA to create an IrDA application to
> control my home air conditioner. The idea is that first I learn the
> controlling signal by reading IR from controller and then send the
> signal out by using my iPAQ 5500. The problem is that I use
> IrDAListen to listen to the socket but can't find the IrDAClient even
> if the controller is only 1cm from the iPAQ's IR port; I also use
> IrDAClient to find a device and can't find any. Can anybody here tell
> me what I have done is wrong?
>
Do you know that the air conditioner uses IrDA protocols (precisely
IrDA-Data)? I would have guessed it uses some form of 'consumer'
infrared signal. These two are not at all similar.

(Oh by the way please don't post here in HTML format).
--
Alan J. McFarlane
http://homepage.ntlworld.com/alanjmcf/
Please follow-up in the newsgroup for the benefit of all.