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Questions tagged [ios-bluetooth]

282 questions
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Write error to ble characteristics in iOS

I tried to write to ble characteristics.But the return error is "Writing is not permitted". This is to discover the characteristics. // Invoked when you discover the characteristics of a specified service. - (void)peripheral:(CBPeripheral…
batuman
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Bluetooth low energy: detect what system is running on central

is there a way for a peripheral to determine to what central it is connected to? Suppose i have a peripheral device that can connect to a PC, a Smartphone, or a smart TV, etc. The peripheral is an arduino based system, therefore has got some…
David
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Bluetooth Android and Bluetooth iOS

When I press a button on a device that is connected to iOS or Android via Bluetooth, it should perform some task in an app(app installed on iOS or Android). I am not sure which Bluetooth profile will be best for my job. I think HID profile, but will…
Sam
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Does Bluetooth Low Energy devices still not show under iOS Bluetooth settings (My Devices)?

I'm trying to set up a hobby project and I'm wondering - if my device uses Bluetooth Low Energy module, will this device show under the list of Bluetooth Devices under Settings for iOS? Or will my app have to search for this device specifically…
Brejuro
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Voice over bluetooth in iOS

I am doing research over four days, But I am not found any solution for calling over Bluetooth between two iOS devices within a distance. I found that audio streaming is possible between two iOS devices using multipeer connectivity framework but…
Saurabh Jain
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CoreBluetooth cannot communicate without running app?

I want you to understand to my English skill is not good. I'm developing an app using CoreBluetooth. I checked I can do Bluetooth work in the background after running the app once (scanning, connect, get services). However, I'm wondering if…
David.Choi
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flatMap writeValue for characteristic do not return Observable

Update: I just checked their example projects and it is the same. So, it might be a bug, or this is expected behaviour. I'm using RxBluetoothKit and cannot figure out the following issue. I'm having this wrapper function to write a characteristics…
Daniel
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centralManager(_:didConnect:) sometimes not getting caled

I want to build an iOS App, which connects every minute with a BLE peripheral to retrieve a specific characteristic. In most cases this works very well, but after a few hours the CBPeripheral's state gets stucked at .connecting sometimes, if I try…
ErBeEn
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How to network multiple iOS devices programatically without WiFI and Server, just use Bluetooth?

I have a strange user requirement. The user requires the app can network each other app users, and broadcast small data package to other devices. However, we can't use back-end server, and user devices might not in the same WiFi networks. The only…
Yi Jiang
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iOS How to name External Accessories protocol string

I use this Socket Mobile web site to fill MFi approval form. My quiestion is about number Any protocol strings you are using other than com.socketmobile.chs I found information on page here that describes: As part of your communication with…
Matrosov Oleksandr
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I am converting NSString a=@"0x401A" into int16_t?

Why when I am trying to convert it converts hexadecimal value into integer? unsigned int outVal; NSScanner* scanner = [NSScanner scannerWithString:final1]; [scanner scanHexInt:&outVal]; NSLog(@"%u",outVal); Another way I am trying to do is…
ab jatoi
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Central to communicate with multiple peripherals at once

I'm trying to get my central (iOS device) to communicate with two peripherals (one iOS device, one not). Individually they work fine but I'm finding that once I get both peripherals involved, only the peripheral that was connected to the most…
Hester
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How to reduce my iOS app's bundle size?

I am working on an iOS app that integrates with multiple bluetooth devices (e.g. printers and barcode scanners). Each of the devices comes with it's own version of SDK and most of them just have objective-c/swift SDKs but not javascript SDKs. Would…
Deepan Subramani
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Unable to Share a URL through Bluetooth(UIActivityViewController)

I'm trying to share a URL so that URL should be opened in Safari or any web browser but unable to do so. I have Sent that to my MAC and MAC opening it as text file and then by clicking on that i'm going to safari but in case of iPhone i'm struggling…
Zeeshan Ahmed
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How to connect hardware device to an Iphone application over Bluetooth

I have a hardware device which would communicate with a third party application on Android and IOS over Bluetooth to send to and fro data. With Android I am able to achieve this, however in case of IOS I don't have any information. Till now the…
Daemon
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