I'm hitting an issue with a connected peripheral that was discovered with BLE when that peripheral also happens to be classic BT paired. If that peripheral is not classic BT paired, there is no issue. When calling discoverServices([serviceCBUUID]) the peripheral delegate peripheral:didDiscoverServices: is called without error, but peripheral.services is empty whenever the peripheral happens to also be classic BT paired. How can it be possible to get a callback that services where discovered, yet the peripheral has no services when queried in that callback? Is this a known issue with a workaround? Thanks.

I am currently working on an IOS application that pairs with a raspberry pi advertising a UART BLE service. The application successfully discovers the peripheral and attempts to connect to it. However, I keep getting a pop up window from IOS with a request to pair with the device. If I press "cancel", the app disconnects from the peripheral. If I press "pair", the peripheral connects. However, the app continues sending me pairing requests. Is this a known bug with IOS? Is there any way to get around this issue?

In my app the shortcut intent handler is scanning for Bluetooth devices and based of a given selection it connects to them devices and perform some actions. Now as soon the option 'Show When Run' is set to disabled, the Bluetooth centralManager does no longer connect to any peripheral, device scanning is still working though and running the shortcut by Siri is working as well. As a result, automation doesn't work and apparently I cannot use the shortcut as widget on lockscreen. What else does the 'Show When Run' option apart from raising a user notification after the shortcut completed? Could this be a missing permission issue? I already added required keys on the info.plist for Bluetooth access and added Bluetooth background option on both app and shortcut targets.

Hi, We have connected with hardware device successfully without add password. We would like to use the device with password authorization. When device is connect successfully then password is required and without password device should not work. We have tired all authentication and authorization methods in core bluetooth documentation but not work. We have also search on stack overflow we got this link https://stackoverflow.com/questions/26483669/ios-core-bluetooth-pin-code Please guide us how can achieve with password ? https://developer.apple.com/documentation/corebluetooth/cbcharacteristicproperties/1518980-authenticatedsignedwrites Thanks

Hi,I am trying to figure out to see if there's a way that I don't need to prompt user to enter the password, but to send password programmatically.Example:1. Device has a pre-shared key of 12342. My app attempts to pair with the device with 1234Ideal Result:- User does not need to input password of 1234. The app handles the password entering and then it's pairedCurrent:- If I try to pair new device, I will always a pop-up that asks the user to enter the password 1234Thanks!

Hello, We are a company working on Ultra Wideband solutions and, hence, using Apple's NearbyInteraction framework to establish UWB Ranging sessions with our UWB-enabled third-party accessory. This week we were excited about the new background UWB Ranging session possibility, which opens new use cases. The wwdc2022 10008 video that provides the technical details for this feature indicates that the third-party accessory is responsible to expose the Nearby Interaction GATT Server. We don't manage to get full details about what needs to be implemented to by compliant with Apple's framework. The URL below indicates that full BLE details should be explained in the "Nearby Interaction Accessory Protocol Specification" but we don't see any info there. https://developer.apple.com/documentation/nearbyinteraction/ninearbyaccessoryconfiguration https://developer.apple.com/nearby-interaction/specification/ Can someone indicate us where the find full details for this background Nearby Interaction feature? Thanks in advance. Regards.

After updating a device to iOS 16 beta 1, I've noticed some changes to how Bluetooth profiles behave for certain functions. Specific examples include: Message Access Profile -> The SetMessageStatus function returns "OBEX_BAD_REQUEST" where it didn't before 02-00-4E-01-00-23-00-42-00-36-00-42-00-38-00-42-00-37-00-30-00-37-00-42-00-39-00-41-00-38-00-34-00-33-00-45-00-00-42-00-16-78-2D-62-74-2F-6D-65-73-73-61-67-65-53-74-61-74-75-73-00-49-00-04-30-4C-00-09-17-01-00-18-01-01-CB-08-60-5E-20 Message Access Profile -> Getting Message Listings from the sent folder...previously I was able to retrieve messages here but am no longer able to. It would be nice if the details of any changes were noted so appropriate updates can be made. Would also be nice if Apple finally moved off of version 1.2 or whatever so I can get Conversation Listings/Conversation ID from the device. We can dream, can't we? Thanks, -Drew

Device Info:- Bluetooth version: - 4.0 Communication Protocol: UART 3.3V TTL Device is Weight Scale We already tried using their mac address .but as per our knowledge we are unable to do that using core Bluetooth. we are attaching Bluetooth device service and characteristics here. Are we able to connect this Bluetooth Device using Core Bluetooth? * *

My iOS app has BLE beacons detection in it. Which means If user has bluetooth and location on and if user enters the range of a beacon, system automatically awakes the app If it was not running (killed state). This was working fine on iOS 14 and below. Yesterday I updated my device to iOS 15 and app no longer gets awoken while entering a BLE beacon region even If I have enabled "Always" location permission in the settings. Any thoughts ?

I know that with the release of watchOS 4, Apple Watch can now act as its own CBCentralManager for communicating with BLE peripherals. But why can't the Apple Watch be used as a CBPeripheralManager? If CoreBluetooth is now accessible, why allow access to receive BLE but not send? I have a project that currently uses WatchConnectivity to transfer motion data from the Watch to a paired iPhone, but I think that bypassing WatchConnectivity and making the Watch a BLE peripheral would improve data transfer rates significantly.Can anyone shed any light on why Apple Watch can't be a peripheral?

We have a custom designed device that contains nRF51822 System on Chip from Nordic and we want to be able to exchange the data with it over Bluetooth Low Energy (BLE) link. We are using Apple Notification Center Service (ANCS) so our custom device can wake up our app from sleep after receiving a notification, so we need to look for and subscribe to the ANCS primary service on our custom designed device to start this process. nRF51822 SoC on our custom device can successfully discover ANCS Service on the iPhone (UUID = 0xF431) and explicitly enable Notification Source Notifications and Data Source Notifications on the custom device side. What is not clear to us is whether our custom device can successfully become a Notification Consumer (NC) and get notified by the iPhone (Notification Provider) of incoming notifications without the Bluetooth Pairing Request popup. As the documentation says, "All these characteristics require authorization for access.". Is this authorization shown through the Bluetooth Pairing Request system popup? We asked Nordic about that (link) but they did not have a right answer and suggested to contact Apple.

I am working on an app built in Swift and UIKit that uses audio playback over bluetooth. I am finding different amounts of latency for different devices, and it seems consistent across a given make/model. For instance, using an iPhone XR as the source, Bose On-Ear lags at 0.45 secs, Sony Pros lag at 0.3 secs and AirPods Pro lat at under 0.1 secs. I'd like to adjust latency based on collected data for "known" devices, but need a way (w/out asking the user for input) to detect the make and model of their bluetooth audio device Is this possible to do, maybe using core Bluetooth, or not?

I have a crash in an app made in SwiftUI and using Core Bluetooth. I didn't have any UI, just the WindowGroup with an EmptyView, in this crash log. I was just sending some data in the EmptyView's .onAppear modifier to the peripheral and when I got the response and disconnect I get the following crash. I don't know what is going on. Can anyone help me please? Incident Identifier: 0A33C23B-6EB3-4137-92BE-A76DFB446558 CrashReporter Key: 47afebdb13773bf8c6112096dc5c4bf106cc22a1 Hardware Model: iPhone12,1 Process: App Clavier [331] Path: /private/var/containers/Bundle/Application/F88A8F58-D219-4991-8356-337BD96CFAC8/App Clavier.app/App Clavier Identifier: com.winerim.giltza Version: 1.0 (2) Code Type: ARM-64 (Native) Role: Foreground Parent Process: launchd [1] Coalition: com.winerim.giltza [519] Date/Time: 2022-06-02 10:12:07.1258 +0200 Launch Time: 2022-06-02 10:11:49.3838 +0200 OS Version: iPhone OS 15.4.1 (19E258) Release Type: User Baseband Version: 3.02.01 Report Version: 104 Exception Type: EXC_BAD_ACCESS (SIGBUS) Exception Subtype: KERN_PROTECTION_FAILURE at 0x00000027fffff9a0 Exception Codes: 0x0000000000000002, 0x00000027fffff9a0 VM Region Info: 0x27fffff9a0 is in 0x1000000000-0x7000000000; bytes after start: 103079213472 bytes before end: 309237646943 REGION TYPE START - END [ VSIZE] PRT/MAX SHRMOD REGION DETAIL commpage (reserved) fc0000000-1000000000 [ 1.0G] ---/--- SM=NUL ...(unallocated) ---> GPU Carveout (reserved) 1000000000-7000000000 [384.0G] ---/--- SM=NUL ...(unallocated) UNUSED SPACE AT END Exception Note: EXC_CORPSE_NOTIFY Termination Reason: SIGNAL 10 Bus error: 10 Terminating Process: exc handler [331] Triggered by Thread: 0 Kernel Triage: VM - pmap_enter failed with resource shortage Thread 0 name: Dispatch queue: com.apple.main-thread Thread 0 Crashed: 0 libswiftCore.dylib 0x19f027cb8 swift::RefCounts<swift::RefCountBitsT<(swift::RefCountInlinedness)1> >::incrementSlow(swift::RefCountBitsT<(swift::RefCountInlinedness)1>, unsigned int) + 60 1 libswiftCore.dylib 0x19efef0d0 swift_retain + 124 2 libswiftCore.dylib 0x19efef0d0 swift_retain + 124 3 SwiftUI 0x1a1db2f54 ViewGraph.timeDidChange() + 88 4 SwiftUI 0x1a1db3868 GraphHost.setTime(_:) + 168 5 SwiftUI 0x1a1dcb1dc ViewGraph.beginNextUpdate(at:) + 28 6 SwiftUI 0x1a1dc51c8 closure #1 in ViewRendererHost.render(interval:updateDisplayList:) + 2280 7 SwiftUI 0x1a1e8cd5c ViewRendererHost.render(interval:updateDisplayList:) + 388 8 SwiftUI 0x1a1dd816c _UIHostingView.layoutSubviews() + 256 9 SwiftUI 0x1a1ddbfcc @objc _UIHostingView.layoutSubviews() + 28 10 UIKitCore 0x19c794844 -[UIView(CALayerDelegate) layoutSublayersOfLayer:] + 2592 11 QuartzCore 0x19df0a1c0 CA::Layer::layout_if_needed(CA::Transaction*) + 532 12 QuartzCore 0x19defc5fc CA::Layer::layout_and_display_if_needed(CA::Transaction*) + 136 13 QuartzCore 0x19df10f70 CA::Context::commit_transaction(CA::Transaction*, double, double*) + 452 14 QuartzCore 0x19df19e78 CA::Transaction::commit() + 704 15 QuartzCore 0x19defbd7c CA::Transaction::flush_as_runloop_observer(bool) + 88 16 CoreFoundation 0x19a1d9bb4 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ + 36 17 CoreFoundation 0x19a1a8b70 __CFRunLoopDoObservers + 592 18 CoreFoundation 0x19a1a3c2c __CFRunLoopRun + 1052 19 CoreFoundation 0x19a1b76b8 CFRunLoopRunSpecific + 600 20 GraphicsServices 0x1b6251374 GSEventRunModal + 164 21 UIKitCore 0x19cb1ce88 -[UIApplication _run] + 1100 22 UIKitCore 0x19c89e5ec UIApplicationMain + 364 23 SwiftUI 0x1a1fee640 closure #1 in KitRendererCommon(_:) + 164 24 SwiftUI 0x1a1f1c524 runApp<A>(_:) + 252 25 SwiftUI 0x1a1efd810 static App.main() + 128 26 App Clavier 0x10507b5f8 static App_ClavierApp.$main() + 40 27 App Clavier 0x10507b774 main + 12 28 dyld 0x1058a5ce4 start + 520

I'm developing a BLE app with the guideline below. (https://developer.apple.com/accessories/Accessory-Design-Guidelines.pdf) According to section 40.3 in the guideline, the use of ADV_DIRECT_IND is not a good idea. I'm not sure the reason but it seems to be the rule for peripheral devices. I think it's okay to connect my app(central device) to peripheral devices that transmit ADV_DIRECT_IND in an advertising packet. Is my understanding correct?

Am new to objective c I need to set a characteristic data which I get from a Bluetooth using CB read to Byte array then return a byte buffer. the same is written in java how can I do the same in objective c dataArray = characteristic.getValue(); tsLong = System.currentTimeMillis() - tsStart; float timeSeconds = (float) ((float) tsLong / 1000.0); String timerstring = String.format("%.2f", timeSeconds); message = convertByteToChannelData(ByteBuffer.wrap(dataArray), timerstring, 0); this is the convertByteToChannelData method public String convertByteToChannelData(ByteBuffer wrap,String timerString, int stimulus){ wrap.order(ByteOrder.LITTLE_ENDIAN); // Set 1 Channels // Channels 1, 5, 6, 11, 16, 17 ch1R = (float) ((wrap.getShort(0) / 4095.) * 3.3); ch1Rs = (float) ((wrap.getShort(4) / 4095.) * 3.3); ch5R = (float) ((wrap.getShort(12) / 4095.) * 3.3); ch5Rs = (float) ((wrap.getShort(4) / 4095.) * 3.3); ch6R = (float) ((wrap.getShort(6) / 4095.) * 3.3); }

Hi Apple developer experts, I am getting one critical issue related to Bluetooth on MacOS 12.0.1 and MacOS 12.1. Since we upgrade to MacOS 12.0.1 the bluetooth not working to the pair with device anymore with detail checking as below: The issue was not happened from MacOS 10.7 to 11.3 Big Sur. Only happened from macOS Monterey 12.0.1 + I got the console log with these message: [CoreBluetooth] No name or address and [CoreBluetooth] WARNING: Unknown error: 431. Sometime I also got this: [CoreBluetooth] WARNING: Unknown error: 10702 Checking with tool PacketLogger I saw the error message in HCI Event : Authentication Complete - PIN Or Key Missing and Command Complete [FD4E] - LE Update Extended Advertising Instance - Invalid HCI Command Parameters The code get IOBluetooth Local Services in macOS Catalina response the channel id is 2 or 3 for the hardware device depending on. While in macOS Monterey is response with channel id 1. (The valid RFComm channel from 1 to 30 - IOBluetooth library) The RFCOMMChannel in macOS Monterey is not opened and not response the notification. Everything works fine with older MacOS (I used PacketLogger to check). This maybe the main issue that the Pair device is not working anymore. Note that the status BT connected just keep around 5 seconds then disconnected. My code request RFCOMM include service name, L2Cap attribute, RFComm attributes, SDP attributes with uuid I am very appreciate If anyone knows what should be changed or fix. Many thanks. I tried a lot of cases but it still not working, include reset the bluetooth from my Mac machine. Our customer complaints a lot since they updated macOS Monterey and the bluetooth has been not working properly. Any help would be greatly appreciated. Thank you!

I'm making an application that needs to discover Bluetooth 5.0, and my read extended advertising, jumping from 31 to 255 bytes. In the CB documentation I've only found the extendedScanAndConnect feature, but not how to implement this functionality. Also, I cant discover that coded PHY devices, even with the iPhone 12 who supports Bluetooth 5.0. thanks in advance.