January 2003 - Bluetooth-dev

Re: Bluetooth Java
by Bubba Giles 31 Jan '03

31 Jan '03

I highly doubt you will have much success at this - simply because we don't offer Java APIs, and thus you'd have to write some JNI code to bridge the gap. Not to mention I have no idea how the UI code would handle it... I would highly recommend picking up Cocoa, Java is actually based heavily on the same concepts. I was intimidated by it a bit at first because it was all so new, but once I picked it up, I don't like to write in anything else. There are some great books out there on Cocoa now, I'd start with: Cocoa Programming for Mac OS X by Aaron Hillegass Dive in, you won't be disappointed! Jason bubba(a)apple.com > OK, so my next question (based on some of my previous posts' responses) > is this: > > Can I code bluetooth functionality in Java (Cocoa-Java?) on OS X? The > Bluetooth API examples all seem to be in what I assume is Objective-C > (Cocoa) and I have no idea when it comes to Obj-C. > > Cheers guys and gals. > > CraigP _______________________________________________ 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 Java
by Craig Pugsley 31 Jan '03

31 Jan '03

OK, so my next question (based on some of my previous posts' responses) is this: Can I code bluetooth functionality in Java (Cocoa-Java?) on OS X? The Bluetooth API examples all seem to be in what I assume is Objective-C (Cocoa) and I have no idea when it comes to Obj-C. Cheers guys and gals. CraigP _______________________________________________ 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: Collaborative Bluetooth.app Effort? (Was 'Re: New 2 All')
by Craig Pugsley 31 Jan '03

31 Jan '03

Thanks for the reply. I did have niggling doubts along these lines, actually. I would have thought that you Apple guys would have implemented something along the functionality I mention if you were physically able to - but you can only work inside the limitations of the hardware, at the end of the day. I should have realised sooner really! Thanks again for the reply. Its always a privilege to get a response from an Apple bod. CraigP On Thursday, January 30, 2003, at 06:18 PM, Eric Brown wrote: On Monday, January 27, 2003, at 11:55 AM, Craig Pugsley wrote: I too am new to the listserv and the Jaguar dev tools. Hussain, would you like to try and do something together? My background is Java programming, so I'm really interested in Cocoa-Java. However, as far as I can see, there aren't any Bluetooth APIs written is Java. I would really like to write something along the lines of the Address Book.app (using the system-side address book API) functionality, but try to address some of the niggling issues I have with it: - If you have linked your mobile phone with Address Book.app (using the bluetooth button on the interface), everything is fine. The problems start if you move you phone out of range - at which point you have to re-connect your phone. --> I would have the app check for devices every couple of seconds if something was connected, should be connected, but for some reason isn't (i.e. the mobile has moved out of range). Unfortunately you won't be able to get anywhere near the time granularity that you want here. Bluetooth doesn't really provide a mechanism for proximity detection. To simulate that, you essentially have to page the device (either with a connect or name request command) over and over. The problem there is that while paging a device, no other Bluetooth connections can be created and existing connections will be slowed down to some extent. The paging process typically has a timeout of 15 seconds (long enough to more or less guarantee that if the device is in range that it will see the page). Additionally, because of lower layer timeouts in the hardware, in some cases its possible for the timeout to be even longer. So you end up with a period of at least 15 seconds (worst case - i.e. when the desired device is not present) where performance is degraded and no other connections can be created. There's also the lesser consideration of the power usage during paging. If you're on a laptop running on battery, its possible that could affect overall batter life (I do not have any hard data to support this however). In general its probably a bad idea to continuously look for a device when you don't expect it to be there. In practice, you'd only be able to look for the device every minute or so which wouldn't really give you the immediate behavior you want. In theory, the periodic inquiry functionality may be better suited to proximity detection, but typically cell phones don't support being discoverable all of the time. And even if they did, it would have a definite negative impact on batter life. Now given all of that, you're still welcome to try it out. I just wanted to warn you ahead of time so you know some of the pitfalls going in. - 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. CraigP 07803 109635 _______________________________________________ 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: Collaborative Bluetooth.app Effort? (Was 'Re: New 2 All')
by Eric Brown 30 Jan '03

30 Jan '03

On Monday, January 27, 2003, at 11:55 AM, Craig Pugsley wrote: I too am new to the listserv and the Jaguar dev tools. Hussain, would you like to try and do something together? My background is Java programming, so I'm really interested in Cocoa-Java. However, as far as I can see, there aren't any Bluetooth APIs written is Java. I would really like to write something along the lines of the Address Book.app (using the system-side address book API) functionality, but try to address some of the niggling issues I have with it: - If you have linked your mobile phone with Address Book.app (using the bluetooth button on the interface), everything is fine. The problems start if you move you phone out of range - at which point you have to re-connect your phone. --> I would have the app check for devices every couple of seconds if something was connected, should be connected, but for some reason isn't (i.e. the mobile has moved out of range). Unfortunately you won't be able to get anywhere near the time granularity that you want here. Bluetooth doesn't really provide a mechanism for proximity detection. To simulate that, you essentially have to page the device (either with a connect or name request command) over and over. The problem there is that while paging a device, no other Bluetooth connections can be created and existing connections will be slowed down to some extent. The paging process typically has a timeout of 15 seconds (long enough to more or less guarantee that if the device is in range that it will see the page). Additionally, because of lower layer timeouts in the hardware, in some cases its possible for the timeout to be even longer. So you end up with a period of at least 15 seconds (worst case - i.e. when the desired device is not present) where performance is degraded and no other connections can be created. There's also the lesser consideration of the power usage during paging. If you're on a laptop running on battery, its possible that could affect overall batter life (I do not have any hard data to support this however). In general its probably a bad idea to continuously look for a device when you don't expect it to be there. In practice, you'd only be able to look for the device every minute or so which wouldn't really give you the immediate behavior you want. In theory, the periodic inquiry functionality may be better suited to proximity detection, but typically cell phones don't support being discoverable all of the time. And even if they did, it would have a definite negative impact on batter life. Now given all of that, you're still welcome to try it out. I just wanted to warn you ahead of time so you know some of the pitfalls going in. - 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: Command Prompt
by Bubba Giles 28 Jan '03

28 Jan '03

Hi Hussain, I'm not sure what you mean by this, can you clarify please? Thanks, Jason bubba(a)apple.com > Hi, > > Would somebody know how to get and use command prompt while editing the vCard > Bluetooth example so that the interface doesn't need to be changed all the > time? > > Thanks, > Hussain _______________________________________________ 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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Command Prompt
by Hussain Bandukwala 28 Jan '03

28 Jan '03

Hi, Would somebody know how to get and use command prompt while editing the vCard Bluetooth example so that the interface doesn't need to be changed all the time? Thanks, Hussain ======================================================================== Hussain H. Bandukwala, C-1116, 1189 Beall Ave., The College of Wooster, Wooster, OH - 44691. (Home) -- (330)-287-3000 (x-7107) (Cell) -- (330)-412-1980 http://pages.wooster.edu/hbandukwala "It is not the strength, but the duration, of great sentiments that makes great men." -- Friedrich Nietzsche ======================================================================== _______________________________________________ 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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Collaborative Bluetooth.app Effort? (Was 'Re: New 2 All')
by Craig Pugsley 27 Jan '03

27 Jan '03

I too am new to the listserv and the Jaguar dev tools. Hussain, would you like to try and do something together? My background is Java programming, so I'm really interested in Cocoa-Java. However, as far as I can see, there aren't any Bluetooth APIs written is Java. I would really like to write something along the lines of the Address Book.app (using the system-side address book API) functionality, but try to address some of the niggling issues I have with it: - If you have linked your mobile phone with Address Book.app (using the bluetooth button on the interface), everything is fine. The problems start if you move you phone out of range - at which point you have to re-connect your phone. --> I would have the app check for devices every couple of seconds if something was connected, should be connected, but for some reason isn't (i.e. the mobile has moved out of range). - If the phone rings, Address Book.app only tells us while the phone is ringing. --> I would like the app to indicate if there have been any missed calls - If a text message arrives on the phone, it would be nice for the app to remember the messages I think something like a dock icon or dockling that glows green when the mobile is in range and connected, red when it is not, black when it is not supposed to be connected and a big red circle with a number in it (like Mail.app) showing number of text messages / missed phone calls. This is a heck of a lot to do - especially as I don't know how to use dock items, dock menus, bluetooth or Cocoa)... humm. I feel a mighty mountain ahead of me... So, if anyone feels the urge to help develop such an app and can help either train us students who have no idea where to start, or would like to write some code themselves, that would be great. Specifically, bridging the gap between the raw bluetooth API and something like Java that I can use. Thanks!! CraigP On Monday, January 27, 2003, at 04:31 AM, Hussain Bandukwala wrote: Dear List Members, I am a new user of both, the listserv as well as the Jaguar development tool kit for Bluetooth. I wanted suggestions on ways to study the examples (I am particularly interested in the vCard example). Am also looking for ideas on 'exciting' possible further developments to the given vCard example. Thanking You Kindly, Hussain ======================================================================= = Hussain H. Bandukwala, C-1116, 1189 Beall Ave., The College of Wooster, Wooster, OH - 44691. (Home) -- (330)-287-3000 (x-7107) (Cell) -- (330)-412-1980 http://pages.wooster.edu/hbandukwala "It is not the strength, but the duration, of great sentiments that makes great men." -- Friedrich Nietzsche ======================================================================= = _______________________________________________ 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. CraigP 07803 109635 _______________________________________________ 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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packet decoder crashes
by Matthias Ringwald 27 Jan '03

27 Jan '03

hi the developer PacketDecoder2 is a very nice tool. unfortunately, it doesn't print and when I try the copy with description command it reliably crashes, so screen shots are the only way to do debugging. I'm using version 1.0.1 (v1.0.1f2) on os x 10.2.3 is there a newer version that works ? should I submit a bug report somewhere? cheers, matthias ringwald eth z|rich _______________________________________________ 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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New 2 All
by Hussain Bandukwala 27 Jan '03

27 Jan '03

Dear List Members, I am a new user of both, the listserv as well as the Jaguar development tool kit for Bluetooth. I wanted suggestions on ways to study the examples (I am particularly interested in the vCard example). Am also looking for ideas on 'exciting' possible further developments to the given vCard example. Thanking You Kindly, Hussain ======================================================================== Hussain H. Bandukwala, C-1116, 1189 Beall Ave., The College of Wooster, Wooster, OH - 44691. (Home) -- (330)-287-3000 (x-7107) (Cell) -- (330)-412-1980 http://pages.wooster.edu/hbandukwala "It is not the strength, but the duration, of great sentiments that makes great men." -- Friedrich Nietzsche ======================================================================== _______________________________________________ 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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headset profile in OS X
by Connor Dickie 24 Jan '03

24 Jan '03

I am interested in finding out more about support for the headset profile in OS X. I know that the current software does not have this feature - Does anyone know of any resources for someone that might want to implement the headset profile in OS X? Connor Dickie email :: 7rcd[at]qlink[dot]queensu[dot]ca mobile :: 6134842061(a)pcs.rogers.com web :: http://hml.queensu.ca _______________________________________________ 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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