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Questions tagged [bluetooth-lowenergy]

Bluetooth Low Energy ("BLE") is a radio standard introduced in 2006. It is also known as Bluetooth Smart and is a subset of Bluetooth v4.0.

Bluetooth Low Energy is a faster and less energy consuming radio standard, introduced in 2006 and launched to mass production in 2010 as part of the Bluetooth Core specification version 4.0. Version 4.1 was released in December 2013, introducing new network topologies and privacy features.

The first smartphone with Bluetooth 4.0 was the Apple iPhone 4S launched in 2011. Today, most smartphones, for example from Apple, Samsung and Nokia, have BLE capability.

Bluetooth SIG has defined various profiles and guidelines, which have to be respected. Devices can be in either peripheral (advertise data) or central mode (Scan for BLE devices).

Apple provided the central mode support in and added the peripheral mode support in . Google has provided central mode support in with the release of Android OS version 4.3 and added the peripheral mode support in Android 5.0.

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"Bluetooth Share has stopped" alert when detecting iBeacons on Android

I'm using Android iBeacon Library from Radius Networks to play with iBeacons. After some time I see constantly alerts popping out of the blue: "Unfortunately, Bluetooth Share has stopped." with [Report] [OK] buttons. Phone: Nexus 5 with Android…
user3432649
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Does core BLE run in the background after force quit in iOS 7.1? Or just iBeacon?

Does anyone know if core BLE continues to run in the background after a user force quits the app in iOS 7.1? Or does just iBeacon continue to run? I know that neither will continue to broadcast on force quit, but will both continue to scan? EDIT:…
Taylor
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Is it possible to improve BLE services discovery

I have just a little question about BLE services discovery on Android. I have something that is working perfectly fine but I have a little performances issue.. I saw that the function BluetoothGatt.discoverServices() first discovers all the…
Alarsha
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Can I bond a Bluetooth Low Energy device?

I want to pair my Android cellphone with a BLE device using createBond and setPin as in this StackOverflow question. I'm using a TI SensorTag, and I am able to get it to connect, but I want to get it to bond so that I don't have to scan for it…
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Making a Windows 8.1 laptop communicate with an Android device (4.4.2) over Bluetooth Low Energy?

I am new to developing on bluetooth LE stack and need some help understanding a use case and how to make it work. So, I have a Windows 8.1 Lenovo Ideapad Yoga 2 Pro (with Bluetooth 4.0) and an Android HTC One running KitKat 4.4.2 (also having…
Abhishek Sharma
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Can you use the CoreBluetooth on Xcode simulator?

I have read Does the iPhone simulator in Xcode support Bluetooth Low Energy? I need to establish a connection with BLE from the mac retina to the iPad Air . Did something has changed and i can now make the connection from the mac ? How if not, can…
Curnelious
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BLE IOS : connectPeripheral results a didDisconnectPeripheral with null error SOMETIMES

I'm working on a project which use BLE of ios It works great except that sometimes when I call connectPeripherical (with retrieve p or with central scan), it takes a 10 seconds and after it disconnects the peripheric (didDisconnectPeripheral with…
Jordan Samouh
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CLRegionState is UnKnown When i"m in the region

I'm testing iBeacon, I've used didDetermineState: method and the CLRegionState is CLRegionStateUnknown when I'm inside the region, can anybody tell me why? My Bluetooth is On and detecting the beacons when I range them for CLBeaconStateUnknown,…
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Platform doesn't support Bluetooth Low Energy Central/Client role

In settings I see Bluetooth is turned on. But - (void) centralManagerDidUpdateState:(CBCentralManager *)central returns central.state == CBCentralManagerStateUnsupported What does it mean? iPad model mc796rs/a and iOS 7.0.3
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Bluetooth Low Energy: Reading the sensor in RedBearLab Arduino Shield from Raspberry Pi

I am trying to read the FSR sensor value attached to the RedBearLab Arduino Shield from the Raspberry Pi. I am using RedBearLab example - simplecontrol. To turn on the sensor reading capability, I need to write to handle 0x000b the value A00100. So…
nad
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Understanding Characteristics in Bluetooth Low Energy for Android

I am trying to simply read and Write Hello World from an galaxy S3 to a blueradio dongle which is connected to a virtual serial port. but I am getting Unhandled exception: java.lang.NullPointerException when ever i call…
justin018
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Android BLE // Using custom service UUID

We are developping a custom bluetooth low energy peripheral and we need to define our custom service. Based on this link: https://www.bluetooth.org/en-us/specification/assigned-numbers/service-discovery All short UUID (16 bits) are reserved pending…
M to the K
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How to write "AFCF" as a characteristics value in android BLE?

I am using sample code of Bluetooth low energy and I have made some minor changes in it in order to write characteristics value. Here below is my code that I am using for writing characteristic value and it successfully write 1-byte(0xFF) value.…
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Android Bluetooth Low Energy (BLE) API Not Ready for Prime Time

I am working on a fitness app that is to supports two BLE sensors (heart rate, stride). I ended up with two bounded services (one for each sensor) called and bounded by my main activity. This is running on Nexus 7 II, with KitKat. I have spent…
Jason Porter
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Creating iBeacon services in Raspberry Pi

I've been struggling a lot with Bluetooth LE for a while, I could successfully turn a Raspberry Pi into an iBeacon following one of the many tutorials online that involves using Bluez stack. However I noticed, when testing the iBeacon with iOS apps…
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