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Questions tagged [bluetooth-lowenergy]

Bluetooth Low Energy ("BLE") is a radio standard developed in 2006 and integrated in Bluetooth 4.0 in December 2009. Formerly marketed as Bluetooth Smart.

bluetooth-lowenergy
193 votes
5 answers
102k views

Android 4.3 Bluetooth Low Energy unstable

I am currently developing an application that will use Bluetooth Low Energy (testing on the Nexus 4). After getting started with the official BLE APIs in Android 4.3, I have noticed that after I ...
sa.shadow's user avatar
  • 2,408
154 votes
6 answers
115k views

What is the iBeacon Bluetooth Profile

I'd like to create my own iBeacon with some Bluetooth Low Energy dev kits. Apple has yet to release a specification for iBeacons, however, a few hardware developers have reverse Engineered the iBeacon ...
PaulWoodIII's user avatar
  • 2,646
124 votes
10 answers
110k views

Location needs to be enabled for Bluetooth Low Energy Scanning on Android 6.0

After upgrading to Android version 6.0 Bluetooth Low Energy (BLE) scanning will only work if Location services are enabled on the device. See here for reference: Bluetooth Low Energy startScan on ...
V-PTR's user avatar
  • 3,253
122 votes
6 answers
141k views

Understanding ibeacon distancing

Trying to grasp a basic concept of how distancing with ibeacon (beacon/ Bluetooth-lowenergy/BLE) can work. Is there any true documentation on how far exactly an ibeacon can measure. Lets say I am 300 ...
Michael Ramos's user avatar
84 votes
5 answers
22k views

How to connect Android device to an iOS device over BLE (Bluetooth Low Energy)

I'm trying to make an application which uses the new Bluetooth Low Energy API of Android. For this, I started with the BLE sample coming with API level 18. As I read that Android can not act as a ...
edoardotognoni's user avatar
81 votes
3 answers
53k views

Can an Android device act as an iBeacon?

Can an Android device act as an iBeacon and figure out when other Android devices come in its range? Do those other Android devices need to have Bluetooth turned on? If a customer comes into my shop ...
Hardik Joshi's user avatar
  • 9,517
77 votes
10 answers
91k views

Android BLE API: GATT Notification not received

Device used for testing: Nexus 4, Android 4.3 Connection is working fine but the onCharacteristicChangedMethod of my callback is never called. However I am registering for notifications using ...
Boni2k's user avatar
  • 3,295
77 votes
13 answers
85k views

Triangulate example for iBeacons

I am looking into the possibility to use multiple iBeacons to do a 'rough' indoor position location. The application is a kind of 'museum' setting, and it would be easier to be able to form a grid ...
Luuk D. Jansen's user avatar
71 votes
4 answers
38k views

Run iPhone as an iBeacon in the background

Is it possible to run an iOS 7 device as a Bluetooth LE peripheral (iBeacon) and have it advertise in the background? I have been able to get it to advertise in the foreground with the code below and ...
jpcoder's user avatar
  • 1,145
62 votes
10 answers
96k views

Android: Sending data >20 bytes by BLE

I am able to send data upto 20 bytes by connecting to an external BLE device. How do I send data greater than 20 bytes. I have read that we have to either fragment the data or split characteristic to ...
Ankit Aggarwal's user avatar
58 votes
2 answers
38k views

Difference between close() and disconnect()?

Android Bluetooth Low Energy API implements 1 method to connect to the device connectGatt() but 2 methods to close the connection disconnect() and close(). Documentation says: disconnect(): ...
Arturs Vancans's user avatar
58 votes
11 answers
86k views

hcitool lescan shows I/O error

I'm trying to do a lescan using hcitool on the raspberry pi. The command prints out Set scan parameters failed: Input/output error. I'm not sure, what exactly happens here. My iPhone is ...
arpwal's user avatar
  • 935
55 votes
4 answers
32k views

iOS Core Bluetooth : Getting API MISUSE Warning

I am writing a test app in iOS 7 with the Core Bluetooth API. When I am testing the application I found that I am getting the following warning message: TestBluetooth[626:60b] CoreBluetooth[API ...
Yogesh Kulkarni's user avatar
55 votes
5 answers
79k views

Get MAC address of bluetooth low energy peripheral in iOS

I am currently working on an iOS application based on bluetooth low energy devices. In order to get a unique identifier to compare the peripherals got, I have to get the MAC address of the peripherals....
Feby Sam's user avatar
  • 793
55 votes
2 answers
53k views

Use BlueZ Stack As A Peripheral (Advertiser)

Goal: Use BlueZ and an Bluetooth 4LE dongle to create a peripheral that advertises the bluetooth equivalent of "Hello World". Where I'm At: I've currently got the BlueZ stack setup and downloaded, I ...
Ceryni's user avatar
  • 714

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