Xcode 15.3 macOS Sonoma 14.5 I'm trying to build an app for macOS that will emulate a HID device (keyboard, mouse, game controller) and send those inputs to an IOS device over Bluetooth. I've figured out how to map the inputs from the relevant documentation (Human Interface Device Profile 1.1, Apple Accessory Design Guidelines) but I can't seem to get the Bluetooth services working. I've found an example of how to implement the Bluetooth service (from macOS Mojave but updated to Swift 5). The code will build without issue and asks for the necessary permissions in settings. After giving permissions and rebuilding, the peripheral simply does not appear on the iPhone Bluetooth settings menu (or the Bluetooth settings menu of any device). I suppose the question I'm asking here is if macOS Sonoma prevents the macOS device from advertising as a keyboard peripheral. Furthermore, is there any documentation that describes these limitations. Here is the full example code (too large to post): https://github.com/MonoidMusician/Bluetooth-Keyboard-Emulator/blob/master/Keyboard%20Connect%20Open%20Source/BTKeyboard.swift

Hello, I'm building apps for iPhone and iPad. Those are working together like a 2-screen Nintendo switch. Is there any way for communication between iPhone and iPad without an outside server? PAN(personal area network) could be a solution, but I could not find any information to use it for my case. If the iPad is connected to iPhone as a personal hotspot (though there's no cell tower), they should be communicate each other. I think there's a better way for my case. Could anyone can tell me where I start to looking for? Thanks, JJ

We have observed a significant increase in download time from the sensors to the mobile device after recent OS updates. We are connected to the external sensors via the BLE interface using the following connection parameters(15,15,0,6000) https://mbientlab.com/tutorials/MetaMotionRL.html: example 1.For 1 Meter with duration of 28 Seconds the IOS 17.1 taking 44 secs where as IOS 17.5.1 taking 82 secs . 2..For 1 Meter with duration of 45 Seconds the IOS 17.1 taking 74 secs where as IOS 17.5.1 taking 143 secs . Even with the same connection parameters, download times were considerably lower in iOS 15 and below devices. We are currently using the connection parameters 15, 15, 0, 6000. I have learned from some documents that the minimum connection interval was changed to 20, but when I tried it, the download time increased further. I am seeking assistance on how to achieve the same download times as the older versions. https://mbientlab.com/community/discussion/comment/11852#Comment_11852

Hi guys, I observed the infinite connection callback(inSelector) for some Bluetooth devices (such as an iPhone SE or Mac Mini) even when I powered off them. However, the issue is not reproducible easily. (IOBluetoothUserNotification *)registerForConnectNotifications:(id)observer selector:(SEL)inSelector ble.txt Looks like there are many -[CBManager xpcConnectionDidReceiveMsg:args:] calls when the issue occurs based on the sample, so it might be caused by the XPC connection with bluetoothd? Has anyone else experienced this issue, or any workaround for it? such as should I restart the bluetoothd?

Hi! I am trying to figure out whether there are any ways to get notifications when a macOS user connects to another device via Bluetooth (specifically when a smartphone is paired with a MacBook). I know about IOBluetooth, but it seems like you have to send periodic queries for devices when using this framework, and there is no general way to receive such notifications. I know that IOHIDManager may help to track connection with human interface devices such as keyboards, trackpads, joysticks, etc. But is there any API in IOKit/DriverKit that could help get notifications when a macOS user connects to a smartphone? Maybe I am missing an important part of IOBluetooth, so I would appreciate any help.

Why is BLE easily disconnected after pairing in cellular networks on iOS 17.3.1, and this situation does not occur in WLAN

Hi! I have previously developed an app that established a Bluetooth connection between two devices (two iPads). Now, I want to port the client-side app to VisionPro. Similar to the iPad app, I have supplemented my info.plist file with the following line: NSBluetoothAlwaysUsageDescription Uses BLE to communicate with devices. Despite this, when I launch the app on VisionPro, the prompt to use Bluetooth does not appear. What could be the issue? What additional settings do I need to configure to enable Bluetooth usage?

I need a Swift function to obtain the Magic Mouse battery level. I am working on an app to display the battery level in the Status Bar. I have the Status Bar code working. Functions for the Wireless keyboard and Track Pad would also be helpful.

Hi, I am developing a service that reads data from wearable devices. It should launch the scheduler every 15 min, but however sometimes there is a delay of 1 - 5 minutes, there are days that the scheduler does not run between 23:00 to 7 am, I am using BGAppRefreshTaskRequest. Can someone give me a hand?

[Q] What is the thread safety status of the IOBluetooth framework? Is it possible call any class from the IOBluetooth framework from a secondary thread? I haven't found so far information about this in the documentation and the only pieces of info you can find through a google search say the framework is not thread safe but these are old pieces of info.

I want my program to behave differently if a specific bluetooth headset is "connected" to the system. By "connected" I mean that it is: paired with the system appears on a list of audio output in Settings (not necessarily selected as default output) appears on "My Devices" list in Bluetooth preference pane with "Connected" status. I want this to determine "availability" of the device, i.e. likehood that establishing an active connection will succeed. Apparently IOBluetooth does not offer API to easily achieve this... I've tried: [IOBluetooth pairedDevices] to iterate though paired device list. This one correctly returns IOBluetoothDevice object representing my device. When I call [IOBluetoothDevice isConnected] it returns false even though device is listed as "connected" on My Devices list in Bluetooth settings. If I leave the headset at original place, go with my mac to a physically different location and call getLastInqiuryUpdate or recentAccessDate, both return current time, even though the headset is not in range for several days now. So I'm looking to determine the headset "connected" state the same way Bluetooth Settings pane does it and without making an active connection attempt.

Hi, I am inquiring in regard to how to handle data from a bluetooth device. The device would send data in JSON format to a Mac via bluetooth, and I would need to constantly refresh or fetch data from the device in real time. How would I go about this? Any help would be greatly appreciated. Thank you.

Looking to see if there's been any update with Airpods Pro having an API that developers can use to create new features on top of the earbud.

Hello everyone, I've developed an application using ElectronJS and NodeJS, utilizing the Web Bluetooth API for connecting to and streaming data from peripherals. Initially, this was built and tested on macOS Ventura, where everything worked as expected. However, I've encountered a couple of issues post the Sonoma update. Issue 1: Slower Streaming Speed Post-Sonoma Update After updating to Sonoma, the streaming speed from peripherals significantly decreased. This is perplexing because the app continues to perform well on Ventura. To troubleshoot, I even developed a version using Rust with the btleplug library, hoping for improved Bluetooth performance. However, this did not lead to any noticeable difference; both the Electron and Rust versions perform nearly the same. Has anyone experienced similar issues or knows what might be causing this slowdown? Issue 2: GATT Operation Error Resolved, but Streaming Speed Affected On Ventura, one specific command consistently failed with a GATT operation error. Interestingly, post-Sonoma update, this command works without error, but this seems to have affected the streaming speed. The improved GATT operation seems to come at the cost of decreased streaming performance. Is there a known connection between these two aspects, or has anyone observed a similar trade-off? I'm looking for insights or suggestions to resolve these issues, particularly the streaming speed degradation post-Sonoma. The application needs to maintain consistent performance across different macOS versions, and these discrepancies are quite challenging. Thank you in advance for your help and insights! Best regards,

I am developing an App that uses BLE to connect to third-party devices. Considering information security, perform a LE Secure Connection before BLE connection. But we encountered an issue: after uninstalling the App and reinstalling it, the paired device cannot be connected again. This requires to ignore this device in Settings to continue using it. But we can't do this, it's not friendly to our customers. So, I would like to ask the developers here if they know how to solve this issue. Thank you

objectC program: iOS all : iPhone ~ swift program. : iOS 13 ~ : iPhone 6s ~ swiftUI Program : iOS 13 ~ : iPhone 6s ~ bluetooth classic : ~ iPhone 4s Bluetooth Low Engery : iPhone 5 ~ are All above content right? i am making iOS app with swiftUI app, and Bluetooth Low Energy. after making app, i found that my app can run on greater than iOS13 , iPhone 6s. how many is ther number of above iPhone6s User ?

I am currently writing a iPadOS application to act as a companion to the desktop version that controls a piece of hardware via a USB CDC serial connection. Due to modern iPads having USB-C ports for the last 2 years and the ability to attach certain USB devices via adaptors since the origin of the 30pin doc connector I would expect protocol availability to be fairly complete. So then why is it that the headers required to use USB CDC serial don't exist and if you make them yourself you need to use illegal symbols so you can't upload it to App Store connect. Where as USB CDC ethernet has full support along with Bluetooth RFCOMM (rs232 serial over bluetooth) and even USB MIDI given that midi is a superset of serial. So why isn't there a USB CDC serial kit/api/even just allowing a data stream to the TTY/CU port? If there is a way please tell me what it is and point me to the documentation.

Hello, I have found an example of Bluetooth RFCOMM client for macOS on GitHub. I search now an example of Bluetooth RFCOMM server for macOS. Thanks.

Hello, I try to create a Bluetooth RFCOMM client and server on macOS, I tried using this project on GitHub but I have this message : The device does not have the necessary services. and it's impossible to connect to the device. do you know an example project that working ? Thanks

When I set the AVAudioSessionCategory avAudioSessionCategory: AVAudioSessionCategory.playAndRecord， sound to come out of the built-in speaker instead of Bluetooth headphones。ios17 。It is normal in IOS 16 or 15 final session = await AudioSession.instance; await session.configure(AudioSessionConfiguration( avAudioSessionCategory: AVAudioSessionCategory.playAndRecord, avAudioSessionCategoryOptions:AVAudioSessionCategoryOptions.allowBluetooth | AVAudioSessionCategoryOptions.allowBluetoothA2dp, avAudioSessionMode: AVAudioSessionMode.defaultMode, avAudioSessionRouteSharingPolicy: AVAudioSessionRouteSharingPolicy.defaultPolicy, avAudioSessionSetActiveOptions: AVAudioSessionSetActiveOptions.none, androidAudioAttributes: const AndroidAudioAttributes( contentType: AndroidAudioContentType.music, flags: AndroidAudioFlags.none, usage: AndroidAudioUsage.media, ), androidAudioFocusGainType: AndroidAudioFocusGainType.gain, androidWillPauseWhenDucked: true, )); How to make sound output from Bluetooth instead of speakers in IOS 17? How to make sound output from Bluetooth instead of speakers in IOS 17?