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Questions tagged [beacon]

A technology that enables a device to send push notifications to other devices within close proximity by using Bluetooth Low Energy (BLE).

A technology that enables mobile devices to detect other devices within close proximity.

iBeacons use Bluetooth Low Energy (BLE, also known as Bluetooth Smart) transmitters that notify nearby receivers, such as a smart phone, of their presence for the purposes of proximity sensing. A unique identifier allows the receiver to take specific action such as displaying a notification message or configuring itself to use a smart device such as a lamp, smart-switch or other sensor.

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BLE scan filter by Service Data UUID

We have devices that beacon data with «Service Data - 128-bit UUID» AD type : 0x21. For Android scan, we are filtering BLE device by MAC addresses. It works fine. Because we need more flexibility, we want to filter by UUID. My code works fine only…
Sebastien
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how to connect with bluetooth low energy in ios swift?

I want to connect with ble peripheral. But my code doesn't call didConect function this is my code : func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) { …
Susy Valentina Rahardjo
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cant register beacon on beacon tools

Every time I try to register the beacon on the google beacon tools app on andriod I add the location but it does not seem to let me register it, The register beacon text is greyed out. Is there any way to register the beacon?
Jonathan Alonso
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Can I transmit a beacon signal from my android device while at the same time scanning nearby beacons?

Is it possible to transmit and receive beacon signals at the same time using an android device acting as a beacon?
user3001845
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Google nearby API background scan doesn´t work after application kill

I have kontakt.io beacon and I try to write application for background scanning with nearby API. I use this method to subscribe messages: SubscribeOptions options = new SubscribeOptions.Builder() // Finds messages attached to BLE…
Michael Drdlíček
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Beacon detection using smart watch

I am newly started work on beacon. Can you tell me one things, is it possible beacon detect from watch without phone? Which smart watch, its possible?
AppDeveloperIOS
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Hello I want to detect using a Bluetooth iBeacon, but it does not work well. How can I solve it?

Hello I want to detect using a Bluetooth iBeacon, but it does not work well. How can I solve it? I am testing by connecting with a real mobile phone, not an emulator. 2020-06-13 22:42:01.729 26437-26728/com.example.beacon D/BluetoothAdapter:…
jhleelego
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What does ScanPeriod and BetweenScanPeriod mean in AltBeacon Library?

Do the "setForegroundScanPeriod" and "setForegroundBetweenScanPeriod" in the AltBeacon library match to the Scan Window and Scan Interval of the BLE standard? Also, does this refer to a scan event for each of the 3 advertising channels or will a…
Luis Lopez
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How do I run a constant background service in android oreo?

I am scanning for BLE devices constantly. Now in android oreo the OS shuts down service automatically, is there a way to scan even after app is killed? I have explored 1.) foreground service with notifications [a bad user experience] 2.) periodic…
Divye Shah
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Why does scanning for iBeacons use less battery since Lollipop?

According to the documentation of Android Beacon Library, Fast background detections on Android 5.0+ On Android 5.0, new scanning APIs allow for more efficient background scanning that saves provide similar power savings to the technique described…
Sira Lam
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Can I use Android Beacon Library in foreground service, even on Android 8 (Oreo)?

What I want to achieve I am building an app for a shopping mall, with large amount of beacons installed not quite far away from each other (assume ~20m distance). When a user walks in this mall, even without opening the app, the app needs to keep…
Sira Lam
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Gatt 133 exception on read characteristic and followed by gatt 22

Problem: I am getting a GATT exception 133 when trying to read the characteristics. I made a delay to read but unfortunately it doesn't works followed by the GATT 22 error. It happens on few devices but i don't know how to solve this problem.…
prasanthMurugan
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Huawei Bluetooth behaviour in background scanning

I'm currently working on an background beacon scanning service (foreground, separate process). I found out that different producer like samsung override the default android behaviour regarding bluetooth scanning in sleep mode. Currently I have…
Fintasys
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CycledLeScannerForLollipop: Scan failed: app cannot be registered (Alt-Beacon Library)

I am using Alt-Beacon Library, and getting this error and unable to detect beacons, CycledLeScannerForLollipop: Scan failed: app cannot be registered Platform: OnePlus5 Android 7.1.1 Could anyone suggest me how to resolve this.
g4gaj
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Google Beacon API - Diagnostics Calls Fail

I am at a complete loss here...The two calls bellow are using the same service yet one works great the other fails...I was hoping another set of eyeballs might catch something I am doing wrong. On the google OAuth Playground they both seem to be…
BlueDog
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