August 2012 - Bluetooth-dev

Re: Testing Core Bluetooth Applications in the iOS Simulator on OSX 10.8.1
by Michael Kroll 28 Aug '12

28 Aug '12

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Re: Testing Core Bluetooth Applications in the iOS Simulator on OSX 10.8.1
by Gabriele Merlonghi 28 Aug '12

28 Aug '12

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Re: Testing Core Bluetooth Applications in the iOS Simulator on OSX 10.8.1
by Mark Palatucci 28 Aug '12

28 Aug '12

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Re: BLE packet loss
by Mark Palatucci 28 Aug '12

28 Aug '12

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About connection parameters
by zz_zhang99＠163.com 24 Aug '12

24 Aug '12

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Re: Read/write requests fail while peripheral is in background
by Andras Kovi 24 Aug '12

24 Aug '12

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Re: Read/write requests fail while peripheral is in background
by Joakim Linde 24 Aug '12

24 Aug '12

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Read/write requests fail while peripheral is in background
by Sébastien Martini 24 Aug '12

24 Aug '12

Hi guys, I have a problem when I try to send a read or write request from my central (ipad3 - iOS 6 beta4) to a backgrounded peripheral (iphone4s - iOS 6 beta4). I get the following error: "CoreBluetooth[WARNING] Unknown error: 242". Moreover the delegate methods receive the same error. - (void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error - (void)peripheral:(CBPeripheral *)peripheral didWriteValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error However, when the peripheral become active again with the application entering foreground then the reads and writes succeed as expected. I use the background mode "bluetooth-central" for my peripheral. Note also I use the following permissions: CBAttributePermissionsReadEncryptionRequired and CBAttributePermissionsWriteEncryptionRequired and therefore a connection and pairing is first established before the peripheral is backgrounded. Is it impossible to read/write characteristics while the peripheral is in background ? -- sébastien _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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Re: UUID is nil for newly discovered CBPeripheral
by Etan Kissling 23 Aug '12

23 Aug '12

You can test it by going to settings => general => reset => reset alle settings, or simply change the BdAddr of the device. You will run into bugs almost certainly if you don't have defensive code at all places where you create a string from the CFUUIDRef ;-) On Fri, Aug 24, 2012 at 1:12 AM, Glenn Maynard <glenn(a)bluegoji.com> wrote: > On Thu, Aug 23, 2012 at 11:04 AM, Joakim Linde <joakim(a)apple.com> wrote: >> >> Please note that the lack of UUID does not prevent you from doing what I >> think you want to do (if that's not the case, then please explain to me what >> you are trying to do). In your app you can still check if it is the same >> CBPeripheral object that is being reported over and over again. Since the >> peripheral should use a random resolvable address that changes at least ever >> 15 minutes, the address will change and the device will appear to be a "new" >> device. The only way to long term be able to track device is to connect and >> pair with it. That way we will get the IRK to resolve the address and >> present that to you as a UUID. > > > Is this documented anywhere? I currently have a pairing UI that stores the > UUID received from didDiscoverPeripheral when the user says to pair to a > device, then we connect to that UUID from then on (through > retrievePeripherals). This has worked consistently in my testing, but from > the above it sounds like this may not always work, and it's troubling that > the first I've heard of this is a random mailing list post (and it sounds > like it's not just me). > > -- > Glenn Maynard > _______________________________________________ Do not post admin requests to the list. They will be ignored. Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/bluetooth-dev/site_archiver%40lists… This email sent to site_archiver(a)lists.apple.com

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Re: UUID is nil for newly discovered CBPeripheral
by Glenn Maynard 23 Aug '12

23 Aug '12

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