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

peripheral:didUpdateValueForCharacteristic:error: not called for notification
by Joe Rossano 17 Jun '14

17 Jun '14

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Re: BLE Pairing
by Stephen Jaynes 16 Jun '14

16 Jun '14

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peripheral:didUpdateValueForCharacteristic:error: not called for notification
by Joe Rossano 15 Jun '14

15 Jun '14

>I am trying to write a BTLE monitoring app that receives notifications. I >have built both the central app and a mock peripheral app using Core >Bluetooth (on iOS 7.1). My central can connect fine to the peripheral, >which advertises a service that has 2 CBCharacteristicPropertyNotify >characteristics. But here is what happens once the central discovers the >characteristics (removing non-essential code for clarity). > > >PD = CBPeripheralDelegate in central >PMD = CBPeripheralManagerDelegate in peripheral > > >PD callback invoked >- (void)peripheral:(CBPeripheral *)peripheral >didDiscoverCharacteristicsForService:(CBService *)service error:(NSError >*)error >{ > for (CBCharacteristic *characteristic in service.characteristics) > { > [peripheral setNotifyValue:YES forCharacteristic:characteristic]; > } > } > > >PMD callback invoked twice for the 2 characteristics >- (void)peripheralManager:(CBPeripheralManager *)peripheral >central:(CBCentral *)central >didSubscribeToCharacteristic:(CBCharacteristic *)characteristic >{ > if ([characteristic.UUID isEqual:[CBUUID >UUIDWithString:FILTER_GENUINE_CHARACTERISTIC_UUID]]) > { > BOOL genuineSent = [self.peripheralManager updateValue:genuineValue > forCharacteristic:self.filterGenuineCharacteristic > onSubscribedCentrals:nil]; > } > else if ([characteristic.UUID isEqual:[CBUUID >UUIDWithString:FILTER_LOADING_CHARACTERISTIC_UUID]]) > { > BOOL loadingSent = [self.peripheralManager updateValue:loadingValue > forCharacteristic:self.filterLoadingCharacteristic > onSubscribedCentrals:nil]; > } >} >* The first time this method is invoked the return from >updateValue:forCharacteristic:onSubscribedCentrals: in YES.The second time >the return is always NO. > >PD callback invoked twice for the 2 characteristics >- (void)peripheral:(CBPeripheral *)peripheral >didUpdateNotificationStateForCharacteristic:(CBCharacteristic >*)characteristic error:(NSError *)error >* characteristic.isNotifying is always YES. > > >But that¹s it, no other callback methods are invoked! > >PMD callback peripheralManagerIsReadyToUpdateSubscribers: is never called >for the updateValue:forCharacteristic:onSubscribedCentrals: call that >returned NO >- (void)peripheralManagerIsReadyToUpdateSubscribers:(CBPeripheralManager >*)peripheral > >PD callback peripheral:didUpdateValueForCharacteristic:error: is never >called for the updateValue:forCharacteristic:onSubscribedCentrals: call >that returned YES >- (void)peripheral:(CBPeripheral *)peripheral >didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic >error:(NSError *)error > > > > >I have been testing these apps on an iPad Air and iPhone 5s, both running >iOS 7.1. > >Any idea why the notification is never invoked? > > >Thanks, >Joe > > > > _______________________________________________ >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/joe.rossano%40e-gine >ering.com > >This email sent to joe.rossano(a)e-gineering.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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Re: bluetooth disconnect when UIImagePickerController is started
by Ramin Firoozye 15 Jun '14

15 Jun '14

Suggest you run Instruments and check for low-memory conditions. I've had issues with image picker controller memory use in the past. iOS will aggressively toss things out if you're at the memory highwater mark. Don't think image picker and core bluetooth normally intersect much. -Ramin > On Jun 14, 2014, at 5:03 PM, Frederic Visticot <fvisticot(a)gmail.com> wrote: > > I'm using a BLE dongle. > When my app is connected to the dongle and if I try to start the UIImagePickerController, the BLE connection is broken. > > Is it the normal result ? > How can I avoid to have this connection broken when I start the camera ? > _______________________________________________ > 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/raminf%40gmail.com > > This email sent to raminf(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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bluetooth disconnect when UIImagePickerController is started
by Frederic Visticot 15 Jun '14

15 Jun '14

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Re: Options for passively communicating with BLE devices
by Spero Koulouras 14 Jun '14

14 Jun '14

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Options for passively communicating with BLE devices
by William Henderson 13 Jun '14

13 Jun '14

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Re: BLE Pairing
by Matthias Ringwald 13 Jun '14

13 Jun '14

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BLE Pairing
by Stephen Jaynes 13 Jun '14

13 Jun '14

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Characteristic Notification Not Working
by Joe Rossano 11 Jun '14

11 Jun '14

Hi Folks, I am trying to write a BTLE monitoring app that receives notifications. I have built both the central app and a mock peripheral app using Core Bluetooth (on iOS 7.1). My central can connect fine to the peripheral, which advertises a service that has 2 CBCharacteristicPropertyNotify characteristics. But here is what happens once the central discovers the characteristics (removing non-essential code for clarity). PD = CBPeripheralDelegate in central PMD = CBPeripheralManagerDelegate in peripheral PD callback invoked - (void)peripheral:(CBPeripheral *)peripheral didDiscoverCharacteristicsForService:(CBService *)service error:(NSError *)error { for (CBCharacteristic *characteristic in service.characteristics) { [peripheral setNotifyValue:YES forCharacteristic:characteristic]; } } PMD callback invoked twice for the 2 characteristics - (void)peripheralManager:(CBPeripheralManager *)peripheral central:(CBCentral *)central didSubscribeToCharacteristic:(CBCharacteristic *)characteristic { if ([characteristic.UUID isEqual:[CBUUID UUIDWithString:FILTER_GENUINE_CHARACTERISTIC_UUID]]) { BOOL genuineSent = [self.peripheralManager updateValue:genuineValue forCharacteristic:self.filterGenuineCharacteristic onSubscribedCentrals:nil]; } else if ([characteristic.UUID isEqual:[CBUUID UUIDWithString:FILTER_LOADING_CHARACTERISTIC_UUID]]) { BOOL loadingSent = [self.peripheralManager updateValue:loadingValue forCharacteristic:self.filterLoadingCharacteristic onSubscribedCentrals:nil]; } } * The first time this method is invoked the return from updateValue:forCharacteristic:onSubscribedCentrals: in YES.The second time the return is always NO. PD callback invoked twice for the 2 characteristics - (void)peripheral:(CBPeripheral *)peripheral didUpdateNotificationStateForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error * characteristic.isNotifying is always YES. But that¹s it, no other callback methods are invoked! PMD callback peripheralManagerIsReadyToUpdateSubscribers: is never called for the updateValue:forCharacteristic:onSubscribedCentrals: call that returned NO - (void)peripheralManagerIsReadyToUpdateSubscribers:(CBPeripheralManager *)peripheral PD callback peripheral:didUpdateValueForCharacteristic:error: is never called for the updateValue:forCharacteristic:onSubscribedCentrals: call that returned YES - (void)peripheral:(CBPeripheral *)peripheral didUpdateValueForCharacteristic:(CBCharacteristic *)characteristic error:(NSError *)error I have been testing these apps on an iPad Air and iPhone 5s, both running iOS 7.1. Any idea why the notification is never invoked? Thanks, Joe _______________________________________________ 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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