May 2014 - Bluetooth-dev - lists.apple.com

Re: Advertised service showing up twice?
by Rick Mann 24 May '14

24 May '14

On May 23, 2014, at 18:11 , Zach Dennis <zach.dennis(a)gmail.com> wrote: > Out of curiosity are you also sending the UUID in the scan response? Oh, yes, I bet I am. I'm new to implementing a BLE peripheral at this low a level. Our previous hardware used a Bluegiga module that allowed us to work at a very high level. This BTstack makes me work hard! What should I do to make this work correctly? Our device name doesn't fit along with the 128-bit UUID. Should I send the name in the advertising packet, and the UUID in the scan response, or vice-versa, or something else entirely? Thanks! -- Rick _______________________________________________ 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: Advertised service showing up twice?
by Zach Dennis 24 May '14

24 May '14

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Advertised service showing up twice?
by Rick Mann 24 May '14

24 May '14

When two different iOS see my BLE peripheral, they both show the same service UUID twice in the advertised data. That seems like a bug in iOS, but not all BLE peripherals show this. The advertised data I'm setting is: 02, 0x01, 0x05, // AD Flags (General discoverable, ER/BDR not supported) 17, 0x06, 0xbe, 0xb9, 0x39, 0x48, 0x5e, 0x05, 0xaf, 0x88, 0x1c, 0x43, 0x2a, 0x4b, 0x1b, 0x1f, 0xd5, 0x75, What I get from iOS is: 2014-05-23 17:40:10.679 MyApp[461:60b] <CameraBrowser.mm: 244>: Discovered peripheral [(null)], adv data: { kCBAdvDataChannel = 39; kCBAdvDataIsConnectable = 1; kCBAdvDataServiceUUIDs = ( "75D51F1B-4B2A-431C-88AF-055E4839B9BE", "75D51F1B-4B2A-431C-88AF-055E4839B9BE" ); } I'm using BTstack with a TIWI-BLE (WL1271) module. Any ideas? Thanks! -- Rick _______________________________________________ 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: WWDC Bluetooth Meetup
by Zachary Davison 21 May '14

21 May '14

I’m not going to be around for WWDC itself, but I’ll be in SF from June 4th onwards and would love to meet other BT devs and see what you’re all doing. On May 20, 2014, at 8:00 PM, bluetooth-dev-request(a)lists.apple.com wrote: > Send Bluetooth-dev mailing list submissions to > bluetooth-dev(a)lists.apple.com > > To subscribe or unsubscribe via the World Wide Web, visit > https://lists.apple.com/mailman/listinfo/bluetooth-dev > or, via email, send a message with subject or body 'help' to > bluetooth-dev-request(a)lists.apple.com > > You can reach the person managing the list at > bluetooth-dev-owner(a)lists.apple.com > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Bluetooth-dev digest..." > > > Today's Topics: > > 1. Avoiding to discover services and characteristics with iOS7 > (Fred Visticot) > 2. Re: Avoiding to discover services and characteristics with > iOS7 (Jason Conn) > 3. Re: Avoiding to discover services and characteristics with > iOS7 (William Henderson) > 4. WWDC Bluetooth Meetup (Steve Jabs) > 5. Re: WWDC Bluetooth Meetup (Falko Richter) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 20 May 2014 00:51:43 +0200 > From: Fred Visticot <fvisticot(a)gmail.com> > To: bluetooth-dev(a)lists.apple.com > Subject: Avoiding to discover services and characteristics with iOS7 > Message-ID: <F4A7DD15-2283-4C26-A601-119504A7EA9B(a)gmail.com> > Content-Type: text/plain; charset=iso-8859-1 > > I know that iOS7 has introduced caching mechanisms in the CoreBluetooth. > > 1. I reconnect to a previous connected device with the peripheral identifier. > 2. Connection is fast (100ms) > 3. I need to read a characteristic value > > - Is it mandatory to discover services and characteristics before reading a value ? > In my case it takes 1.5s to read the value ? > - Can I save a characteristic and use this property without services and characteristics discovering step ? > > Is the iOS7 caching mechanism « transparent » / « free » meaning that discovering services and characteristics is using cache ? > > > ------------------------------ > > Message: 2 > Date: Mon, 19 May 2014 15:55:29 -0700 > From: Jason Conn <conn(a)apple.com> > To: Fred Visticot <fvisticot(a)gmail.com> > Cc: bluetooth-dev(a)lists.apple.com > Subject: Re: Avoiding to discover services and characteristics with > iOS7 > Message-ID: <EC3DD532-B1BA-467C-8E47-C4B534F99B30(a)apple.com> > Content-Type: text/plain; charset=iso-8859-1 > >> - Can I save a characteristic and use this property without services and characteristics discovering step ? > > No. CBService/Characteristics/Descriptors are only valid within the context of the connection in which they were discovered. > > You need to go through the same steps and the cache will be used where appropriate. > > On May 19, 2014, at 3:51 PM, Fred Visticot <fvisticot(a)gmail.com> wrote: > >> I know that iOS7 has introduced caching mechanisms in the CoreBluetooth. >> >> 1. I reconnect to a previous connected device with the peripheral identifier. >> 2. Connection is fast (100ms) >> 3. I need to read a characteristic value >> >> - Is it mandatory to discover services and characteristics before reading a value ? >> In my case it takes 1.5s to read the value ? >> - Can I save a characteristic and use this property without services and characteristics discovering step ? >> >> Is the iOS7 caching mechanism « transparent » / « free » meaning that discovering services and characteristics is using cache ? >> _______________________________________________ >> 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/conn%40apple.com >> >> This email sent to conn(a)apple.com > > > > > ------------------------------ > > Message: 3 > Date: Mon, 19 May 2014 19:37:22 -0700 > From: William Henderson <william.c.henderson(a)gmail.com> > To: Jason Conn <conn(a)apple.com> > Cc: Fred Visticot <fvisticot(a)gmail.com>, bluetooth-dev(a)lists.apple.com > Subject: Re: Avoiding to discover services and characteristics with > iOS7 > Message-ID: <1D010CFD94E544F59CFB4DD6C4823B9A(a)gmail.com> > Content-Type: text/plain; charset="utf-8" > > If I recall correctly, caching is used (automatically, as Jason said) only for paired devices who haven’t changed (any of) their advertised characteristics or services. > > William > > On Monday, May 19, 2014 at 3:55 PM, Jason Conn wrote: > >>> - Can I save a characteristic and use this property without services and characteristics discovering step ? >> >> >> No. CBService/Characteristics/Descriptors are only valid within the context of the connection in which they were discovered. >> >> You need to go through the same steps and the cache will be used where appropriate. >> >> On May 19, 2014, at 3:51 PM, Fred Visticot <fvisticot(a)gmail.com (mailto:fvisticot@gmail.com)> wrote: >> >>> I know that iOS7 has introduced caching mechanisms in the CoreBluetooth. >>> >>> 1. I reconnect to a previous connected device with the peripheral identifier. >>> 2. Connection is fast (100ms) >>> 3. I need to read a characteristic value >>> >>> - Is it mandatory to discover services and characteristics before reading a value ? >>> In my case it takes 1.5s to read the value ? >>> - Can I save a characteristic and use this property without services and characteristics discovering step ? >>> >>> Is the iOS7 caching mechanism « transparent » / « free » meaning that discovering services and characteristics is using cache ? >>> _______________________________________________ >>> Do not post admin requests to the list. They will be ignored. >>> Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com (mailto:Bluetooth-dev@lists.apple.com)) >>> Help/Unsubscribe/Update your Subscription: >>> https://lists.apple.com/mailman/options/bluetooth-dev/conn%40apple.com >>> >>> This email sent to conn(a)apple.com (mailto:conn@apple.com) >> >> >> _______________________________________________ >> Do not post admin requests to the list. They will be ignored. >> Bluetooth-dev mailing list (Bluetooth-dev(a)lists.apple.com (mailto:Bluetooth-dev@lists.apple.com)) >> Help/Unsubscribe/Update your Subscription: >> https://lists.apple.com/mailman/options/bluetooth-dev/william.c.henderson%4… >> >> This email sent to william.c.henderson(a)gmail.com (mailto:william.c.henderson@gmail.com) > >

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Re: Avoiding to discover services and characteristics with iOS7
by Zach Dennis 20 May '14

20 May '14

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Re: Avoiding to discover services and characteristics with iOS7
by Thiago Hirai 20 May '14

20 May '14

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Re: Avoiding to discover services and characteristics with iOS7
by William Henderson 20 May '14

20 May '14

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Re: Avoiding to discover services and characteristics with iOS7
by Zach Dennis 20 May '14

20 May '14

_______________________________________________ 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: WWDC Bluetooth Meetup
by Falko Richter 20 May '14

20 May '14

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WWDC Bluetooth Meetup
by Steve Jabs 20 May '14

20 May '14

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