September 2002 - Bluetooth-dev

java servlet
by timo 23 Sep '02

23 Sep '02

anyone knows how to use a java servlet to simulate a client-server model between a Palm using BT card, and with SQL server? thanks Timo ________________________________________________ Get your own "800" number Voicemail, fax, email, and a lot more http://www.ureach.com/reg/tag _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

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Re: RFCOMMClient and Server Examples
by Keith Phu 19 Sep '02

19 Sep '02

From: Eric Brown <esb(a)apple.com> To: Keith Phu <kphu(a)hotmail.com> CC: bluetooth-dev(a)lists.apple.com Subject: Re: RFCOMMClient and Server Examples Date: Wed, 18 Sep 2002 11:44:54 -0700 On Wednesday, September 18, 2002, at 03:34 AM, Keith Phu wrote: Has anyone gotten the RFCOMMServer and RFCOMMClient example code to work? I can start the server, and the 'chat server' service is visible on the client side. But when I try to select the 'chat server' service, no connection is made. After a day of debugging I think I've narrowed down my problem. I think the server software isn't detecting the incoming RFCOMM Channel being set up by the client. Stepping through the client code, the client is stalling on the following line. if ((result == kIOReturnSuccess) && (IOBluetoothDeviceOpenRFCOMMChannel(connectToDevice ,rfcommChannelID, &rfcommChannel) == kIOReturnSuccess)) { which led me to believe that the server is not registering an incoming data listener. Now looking through the server code, it appears that it registers an incoming data listener in the newRFCOMMChannelOpened function. This function is supposed to be called automatically when an incoming channel is detected. It's setup in the following line incomgingChannelNotification = [IOBluetoothRFCOMMChannel registerForChannelOpenNotifications:self selector:@selector(newRFCOMMChannelOpened:) withChannelID:serverChannelID direction:kIOBluetoothUserNotificationChannelDirectionIncoming]; This line is the problem. There was a change in the way that channel open notifications work made between the preview release and Jaguar. A change is needed in the @selector() passed to the register method. The line should read: incomgingChannelNotification = [IOBluetoothRFCOMMChannel registerForChannelOpenNotifications:self selector:@selector(newRFCOMMChannelOpened:channel:) withChannelID:serverChannelID direction:kIOBluetoothUserNotificationChannelDirectionIncoming]; The sample will be fixed in a future release. Using BluetoothMonitor, I can see that an RFCOMM channel does in fact exist. So I think that the handler (newRFCOMMChannelOpened:) is not being called when an incoming channel event occurs. But, I don't know what to do about it. Does anyone have any ideas? Even if the example code worked perfectly for you without modifications, I'd like to know. Thanks Keith - Eric Thanks for the tip. After applying the change, I ran into one more problem on the server side. An exception would be raised after the connection was made. I found the problem, The function that removes the 'chat service' from the service dictionary was being called twice, once in chatBluetoothServiceInterface and once in ChatServerController. I just commented out [myBluetoothInterface StopProvidingChatServices] from the chatServerController code and everything works now. Changing the StopProvidingChatServices function to be more robust would probably be a better solution, but this fix is good enough for me now. I have one more tip. The service name offered by the server will be called '(Computer name) Chat Server'. My computer name contained Japanese characters and the client was unable to find the service. Changing my computer's name to plain english characters fixed the problem. Keith _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

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"Voice Gateway" Services
by Basit Mustafa 18 Sep '02

18 Sep '02

Hello-- I am curious about the Voice Gateway service returned by the IOBluetoothServiceBrowserController when it is browsing my Sony Ericsson T68i (there are actually two listed). I cannot find any documentation to tell me what this might be, is this service an implementation of the Bluetooth "Cordless Telephony" Profile? If so, is there an API to utitlize it (it uses TCS-BIN for signalling, I can't find any support for that, and SCO connections for voice transport)? If it isn't this profile, what do I have to do to place a voice call using this gateway? Maybe a more appropriate question is: is this a Sony-Ericsson provided service or Apple's wrapper for more generic "Voice Gateway" services? Thanks. Basit PS-Sorry if this message is in a mangled format. Lotus Notes (my forced mailer) will only allow MIME or Lotus RTF, so I chose MIME. No plain text. My apologies if this does not look right. _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

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Re: RFCOMMClient and Server Examples
by Eric Brown 18 Sep '02

18 Sep '02

On Wednesday, September 18, 2002, at 03:34 AM, Keith Phu wrote: Has anyone gotten the RFCOMMServer and RFCOMMClient example code to work? I can start the server, and the 'chat server' service is visible on the client side. But when I try to select the 'chat server' service, no connection is made. After a day of debugging I think I've narrowed down my problem. I think the server software isn't detecting the incoming RFCOMM Channel being set up by the client. Stepping through the client code, the client is stalling on the following line. if ((result == kIOReturnSuccess) && (IOBluetoothDeviceOpenRFCOMMChannel(connectToDevice ,rfcommChannelID, &rfcommChannel) == kIOReturnSuccess)) { which led me to believe that the server is not registering an incoming data listener. Now looking through the server code, it appears that it registers an incoming data listener in the newRFCOMMChannelOpened function. This function is supposed to be called automatically when an incoming channel is detected. It's setup in the following line incomgingChannelNotification = [IOBluetoothRFCOMMChannel registerForChannelOpenNotifications:self selector:@selector(newRFCOMMChannelOpened:) withChannelID:serverChannelID direction:kIOBluetoothUserNotificationChannelDirectionIncoming]; This line is the problem. There was a change in the way that channel open notifications work made between the preview release and Jaguar. A change is needed in the @selector() passed to the register method. The line should read: incomgingChannelNotification = [IOBluetoothRFCOMMChannel registerForChannelOpenNotifications:self selector:@selector(newRFCOMMChannelOpened:channel:) withChannelID:serverChannelID direction:kIOBluetoothUserNotificationChannelDirectionIncoming]; The sample will be fixed in a future release. Using BluetoothMonitor, I can see that an RFCOMM channel does in fact exist. So I think that the handler (newRFCOMMChannelOpened:) is not being called when an incoming channel event occurs. But, I don't know what to do about it. Does anyone have any ideas? Even if the example code worked perfectly for you without modifications, I'd like to know. Thanks Keith - Eric _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

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Re: RFCOMMClient and Server Examples
by Björn Davidsson 18 Sep '02

18 Sep '02

What version of MacOS are you using? I built a working server based on the RFCOMMServer sample, modified to talk to our device, on the Jaguar seed release. I have not had time to update it to the changed API in Jaguar. When running it on 10.1, I think I had exactly the problem you describe. Best regards, Bjvrn Davidsson C Technologies AB On Wednesday, September 18, 2002, at 12:34 PM, Keith Phu wrote: Has anyone gotten the RFCOMMServer and RFCOMMClient example code to work? I can start the server, and the 'chat server' service is visible on the client side. But when I try to select the 'chat server' service, no connection is made. After a day of debugging I think I've narrowed down my problem. I think the server software isn't detecting the incoming RFCOMM Channel being set up by the client. Stepping through the client code, the client is stalling on the following line. if ((result == kIOReturnSuccess) && (IOBluetoothDeviceOpenRFCOMMChannel(connectToDevice ,rfcommChannelID, &rfcommChannel) == kIOReturnSuccess)) { which led me to believe that the server is not registering an incoming data listener. Now looking through the server code, it appears that it registers an incoming data listener in the newRFCOMMChannelOpened function. This function is supposed to be called automatically when an incoming channel is detected. It's setup in the following line incomgingChannelNotification = [IOBluetoothRFCOMMChannel registerForChannelOpenNotifications:self selector:@selector(newRFCOMMChannelOpened:) withChannelID:serverChannelID direction:kIOBluetoothUserNotificationChannelDirectionIncoming]; Using BluetoothMonitor, I can see that an RFCOMM channel does in fact exist. So I think that the handler (newRFCOMMChannelOpened:) is not being called when an incoming channel event occurs. But, I don't know what to do about it. Does anyone have any ideas? Even if the example code worked perfectly for you without modifications, I'd like to know. Thanks Keith _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored. _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

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RFCOMMClient and Server Examples
by Keith Phu 18 Sep '02

18 Sep '02

Has anyone gotten the RFCOMMServer and RFCOMMClient example code to work? I can start the server, and the 'chat server' service is visible on the client side. But when I try to select the 'chat server' service, no connection is made. After a day of debugging I think I've narrowed down my problem. I think the server software isn't detecting the incoming RFCOMM Channel being set up by the client. Stepping through the client code, the client is stalling on the following line. if ((result == kIOReturnSuccess) && (IOBluetoothDeviceOpenRFCOMMChannel(connectToDevice ,rfcommChannelID, &rfcommChannel) == kIOReturnSuccess)) { which led me to believe that the server is not registering an incoming data listener. Now looking through the server code, it appears that it registers an incoming data listener in the newRFCOMMChannelOpened function. This function is supposed to be called automatically when an incoming channel is detected. It's setup in the following line incomgingChannelNotification = [IOBluetoothRFCOMMChannel registerForChannelOpenNotifications:self selector:@selector(newRFCOMMChannelOpened:) withChannelID:serverChannelID direction:kIOBluetoothUserNotificationChannelDirectionIncoming]; Using BluetoothMonitor, I can see that an RFCOMM channel does in fact exist. So I think that the handler (newRFCOMMChannelOpened:) is not being called when an incoming channel event occurs. But, I don't know what to do about it. Does anyone have any ideas? Even if the example code worked perfectly for you without modifications, I'd like to know. Thanks Keith _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

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Bluetooth simulation software
by Andrew Jones 10 Sep '02

10 Sep '02

I'm a senior electrical engineer at Case Western Reserve University and am currently working on my senior project which will use Bluetooth. The project involves integrating Bluetooth communications onto a microcontroller board used in a LEGO lab course. The students build LEGO robots around the microcontroller board and then program the board using C to perform actions based on inputs from several sensors. To tackle the problem, we're first going to build a Bluetooth prototype board that simply displays commands sent from a computer and then send commands entered from a keypad. While I'm designing the hardware prototype, two other students will be writing the software. However, as I see it now, the software guys can't start writing code until I finish the hardware implementation. They need the hardware to test their software. Leading the my question: How do Bluetooth software developers test their code? Do you need the hardware? Are there any Bluetooth simulation packages available (Mac or Windows) so the software guys could develop the code while hardware guys crank away at the hardware Thanks, Andrew Jones ************************************************************ Andrew H. Jones Case Western Reserve University undergraduate Major: Electrical Engineering Minor: Artificial Intelligence and History ************************************************************ _______________________________________________ bluetooth-dev mailing list | bluetooth-dev(a)lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/bluetooth-dev Do not post admin requests to the list. They will be ignored.

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