March 2015 - Bluetooth-dev - lists.apple.com

FW: [GRAYMAIL] Re: Bluetooth-dev Digest, Vol 12, Issue 21
by Don Clark 16 Mar '15

16 Mar '15

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Re: Bluetooth-dev Digest, Vol 12, Issue 21
by Justin Cooper 16 Mar '15

16 Mar '15

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Re: Bluetooth-dev Digest, Vol 12, Issue 21
by Nick Brook 16 Mar '15

16 Mar '15

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Re: Bluetooth-dev Digest, Vol 12, Issue 21
by Diego Alfarache 16 Mar '15

16 Mar '15

I see this exact same scenario, discover device, connect, discover services, etc, but I am connecting 2 iDevices, one as a peripheral and one as a central. Same error code 10. I also have added code to retry the connection after a short random amount of time. Diego On 3/16/15, 9:47 AM, "Don Clark" <Don_Clark(a)onsetcomp.com> wrote: > >Yes, I see this fairly frequently. I¹m also using a Nordic chip, but it¹s >an nRF51822. I¹ve added code that sees this disconnect and retries, but >its¹a real pain, and I assume that it¹s caused by some timing issue >between Core Bluetooth and the device. > > >Don > > > >On 2/7/15, 3:00 PM, "bluetooth-dev-request(a)lists.apple.com" ><bluetooth-dev-request(a)lists.apple.com> wrote: > >>Date: Fri, 06 Feb 2015 16:35:16 -0600 >>From: Justin Cooper <jcooper(a)vendwatchtelematics.com> >>To: "bluetooth-dev(a)lists.apple.com" <bluetooth-dev(a)lists.apple.com> >>Subject: peripheral disconnects when discovering services >>Message-ID: >> <CAOkf_k-D5hsGYY1t1VdLb7ADZNwU0=6LvBJyATcM-EqOodj=6Q(a)mail.gmail.com> >>Content-Type: text/plain; charset="utf-8" >> >>Hello! >> >> >>I am having an intermittent issue, where I get an unexpected disconnect >>from our hardware peripheral (which uses the Nordic nrf8001 chip) about 1 >>out of 20 times. >> >>The disconnect always happens at exactly the same place. Here is my >>connection sequence: >> >> - >> >> central.scanForPeripheralsWithServices([serviceUUIDUART], options: >>nil) >> - >> >> didDiscoverPeripheral -> look for matching name in advertisementData, >>if >> found continue with: >> - >> >> store a reference to peripheral as myPeripheral >> - >> >> central.connectPeripheral(peripheral, options: nil) >> - >> >> central.stopScan() >> - >> >> wait for didConnectPeripheral then call >>myPeripheral?.discoverServices([ >> serviceUUIDUART]) >> >> >>Right here is where it fails, again about 1 out of 20 times. >> >>I've posted my debug output log and the error code I receive in >>didDisconnectPeripheral. >> >> >>This test is running in a loop, by the way, where we connect, discover >>services, send and receive data, then disconnect. Then we wait for, say, >>6 >>second and start the loop over. >> >> >>Has anyone else seen errors like this when connecting? >> >> >> >>*Found Peripheral 50000 <__NSConcreteUUID 0x1742250a0> >>36DC3DDA-9384-D02F-BF95-12527501BB86* >> >>*connected to peripheral <CBPeripheral: 0x1700f0d00, identifier = >>36DC3DDA-9384-D02F-BF95-12527501BB86, name = 50000, state = connected>* >> >>*my peripheral is <CBPeripheral: 0x1700f0d00, identifier = >>36DC3DDA-9384-D02F-BF95-12527501BB86, name = 50000, state = connected>* >> >>*going to discover services for Snail and VIU* >> >>*disconnected from peripheral <CBPeripheral: 0x1700f0d00, identifier = >>36DC3DDA-9384-D02F-BF95-12527501BB86, name = 50000, state = disconnected> >>for reasons Error Domain=CBErrorDomain Code=10 "The connection has failed >>unexpectedly." UserInfo=0x17426f980 {NSLocalizedDescription=The >>connection >>has failed unexpectedly.}* >> >> >> >>Thanks! >> >> >>*Justin* > > > _______________________________________________ >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/dalfarache%40gmail.c >om > >This email sent to dalfarache(a)gmail.com _______________________________________________ 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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Multiple callbacks to didConnectPeripheral for the same peripheral device
by Don Clark 16 Mar '15

16 Mar '15

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Re: Bluetooth-dev Digest, Vol 12, Issue 21
by Don Clark 16 Mar '15

16 Mar '15

Yes, I see this fairly frequently. I’m also using a Nordic chip, but it’s an nRF51822. I’ve added code that sees this disconnect and retries, but its’a real pain, and I assume that it’s caused by some timing issue between Core Bluetooth and the device. Don On 2/7/15, 3:00 PM, "bluetooth-dev-request(a)lists.apple.com" <bluetooth-dev-request(a)lists.apple.com> wrote: >Date: Fri, 06 Feb 2015 16:35:16 -0600 >From: Justin Cooper <jcooper(a)vendwatchtelematics.com> >To: "bluetooth-dev(a)lists.apple.com" <bluetooth-dev(a)lists.apple.com> >Subject: peripheral disconnects when discovering services >Message-ID: > <CAOkf_k-D5hsGYY1t1VdLb7ADZNwU0=6LvBJyATcM-EqOodj=6Q(a)mail.gmail.com> >Content-Type: text/plain; charset="utf-8" > >Hello! > > >I am having an intermittent issue, where I get an unexpected disconnect >from our hardware peripheral (which uses the Nordic nrf8001 chip) about 1 >out of 20 times. > >The disconnect always happens at exactly the same place. Here is my >connection sequence: > > - > > central.scanForPeripheralsWithServices([serviceUUIDUART], options: nil) > - > > didDiscoverPeripheral -> look for matching name in advertisementData, >if > found continue with: > - > > store a reference to peripheral as myPeripheral > - > > central.connectPeripheral(peripheral, options: nil) > - > > central.stopScan() > - > > wait for didConnectPeripheral then call >myPeripheral?.discoverServices([ > serviceUUIDUART]) > > >Right here is where it fails, again about 1 out of 20 times. > >I've posted my debug output log and the error code I receive in >didDisconnectPeripheral. > > >This test is running in a loop, by the way, where we connect, discover >services, send and receive data, then disconnect. Then we wait for, say, >6 >second and start the loop over. > > >Has anyone else seen errors like this when connecting? > > > >*Found Peripheral 50000 <__NSConcreteUUID 0x1742250a0> >36DC3DDA-9384-D02F-BF95-12527501BB86* > >*connected to peripheral <CBPeripheral: 0x1700f0d00, identifier = >36DC3DDA-9384-D02F-BF95-12527501BB86, name = 50000, state = connected>* > >*my peripheral is <CBPeripheral: 0x1700f0d00, identifier = >36DC3DDA-9384-D02F-BF95-12527501BB86, name = 50000, state = connected>* > >*going to discover services for Snail and VIU* > >*disconnected from peripheral <CBPeripheral: 0x1700f0d00, identifier = >36DC3DDA-9384-D02F-BF95-12527501BB86, name = 50000, state = disconnected> >for reasons Error Domain=CBErrorDomain Code=10 "The connection has failed >unexpectedly." UserInfo=0x17426f980 {NSLocalizedDescription=The connection >has failed unexpectedly.}* > > > >Thanks! > > >*Justin* _______________________________________________ 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: Is it feasible to let the iOS device scan itself?
by Zach Dennis 12 Mar '15

12 Mar '15

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Re: Is it feasible to let the iOS device scan itself?
by Jason Conn 11 Mar '15

11 Mar '15

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Is it feasible to let the iOS device scan itself?
by Haojian Jin 11 Mar '15

11 Mar '15

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