17,268 questions
Tooling
1
vote
1
replies
46
views
How to track the position in map without internet?
I have a experiment, which is analogged by Dubai Mall, there is an app, which tracks your position inside of the building, showing you position using bluetooth beacons, and floor number using device ...
- 102
1
vote
1
answer
64
views
Android BluetoothAdapter.setName() returns true but ACTION_LOCAL_NAME_CHANGED broadcast never fires - Proposed Solution
I'm working on an Android app that programmatically changes the Bluetooth device name using BluetoothAdapter.setName(). The app needs to know when the name change completes to trigger subsequent ...
- 19
0
votes
0
answers
57
views
There is a double scan happening with my python Bluetooth scanner and I don't know why
I will provide my code. The primary purpose of this is vehicle identification. My only hypothesis is my laptop having multiple Bluetooth signals but it seems to happen for other devices as well. This ...
0
votes
0
answers
37
views
Creating a BluetoothManager crashes my app [duplicate]
I am a begginer in app development and I started to create a very basic app in which I would like to introduce some bluetooth functionalities. I followed the documentation from Android Developers:
...
- 1
2
votes
1
answer
83
views
Subscribed to InterfaceAdded But no signal from dbus connection
My goal is to automate pairing and connecting between my device and controller via BlueZ to handle Bluetooth connection.
In order to do this, I thought of the most basic scenario:
execute the program
...
- 162
3
votes
0
answers
139
views
Bluetooth device using Serial Port Profile (Master) can't connect to my PC (Slave)
I have a DS2278 barcode scanenr that is configured to connect via Bluetooth (Classic) using Serial Port Profile (Master).
For initiating a connection from the scanner (Master) I have to scan a barcode ...
- 288
0
votes
0
answers
45
views
How to detect Bluetooth device name/alias changes on macOS using IOBluetooth
I am developing a macOS app using IOBluetooth.framework.
I simply want to keep a list of paired devices with up-to-date names.
I want to detect when a user renames a paired Bluetooth device (the alias)...
- 16.2k
1
vote
0
answers
78
views
Flutter iOS clear phone cache
Is there a way to clear the cache on an iOS device in flutter?
I currently use flutter_blue_plus package and my iOS device caches some data. Can I prevent the device from caching or just clear it?
- 121
0
votes
1
answer
191
views
Debugging Zephyr RTOS MCUmgr SMP on ESP32: stack overflow and illegal instruction in Bluetooth thread
My application using Zephyr RTOS v4.1.0 on ESP32-WROVER-IE and ESP32-S3-WROOM-1 to implement MCUmgr over Bluetooth (SMP transport) based on the smp_svr sample builds successfully, but flashing results ...
- 13
0
votes
0
answers
51
views
Webrtc using default internal mic instead of bluetooth mic in react native iOS
I'm using react-native-incall-manager lib in my RN project (that also uses react-native-webrtc) to help route the audio to come in from the bluetooth mic. It works in Android but iOS still uses the ...
- 2,651
6
votes
2
answers
406
views
What does it mean to "cancel" a command in the linux kernel and how can one do so?
Context
I bought a CM749 UGREEN Bluetooth 5.4 USB adapter for my Nixos machine. It is recognized by lsusb as ID 33fa:0010 USB2.0-BT, but is not detected by KDE/Plasma's bluetooth daemon.
I dug deeper ...
- 71
1
vote
2
answers
165
views
Find bluetooth connected devices battery level through Apple Script
I'm making a swift app that shows the battery level of all connected bluetooth devices.
I've got three devices connected: Mysz(name surname), Magic Keyboard (name), i12; where Mysz is just Magic Mouse....
- 171
1
vote
2
answers
89
views
onServicesDiscovered() not called if requestMtu() and discoverServices() called together when connecting to peripheral that initiates MTU negotiation
I am running into a BLE interoperability issue between an Android central/client (compileSDK=35) connecting to a peripheral/server that initiates its own MTU negotiation: service discovery appears to ...
- 83
0
votes
1
answer
51
views
Android get bluetooth device new name changed in bluetooth settings
How can I get the new name of a bonded device that was changed in the Bluetooth settings? Is it possible to track this change?
I checked:
val adapter = context.getSystemService<BluetoothManager>(...
- 21
0
votes
1
answer
135
views
Python Bluetooth advertising fails when I include any manufacturing data
I'm using a Raspberry Pi 3 with a fresh install of Raspberry Pi OS Lite 32-bit. I have a Bluetooth Dongle that supports Bluetooth Low Energy. I'm running Python 3.11.2.
I am attempting to broadcast a ...
- 503
1
vote
2
answers
170
views
How to improve Bluetooth communication between Arduino Uno using HC-05 and Android?
I have an Arduino Uno (atmega328p) and this sketch which sends data every 100ms
#include <SoftwareSerial.h>
const int BT_RX_PIN = 15; // SoftwareSerial RX
const int BT_TX_PIN = 17; // ...
- 348
0
votes
0
answers
53
views
BleManager isNotifying: true but listener is never triggered
I'm working on connecting a react native app to a bluetooth peripheral with react-native-ble-manager. Im successfully connecting to the device and when I run retrieve services before sending the ...
0
votes
0
answers
164
views
How to hide contacts in Android AOSP Contacts Provider when A phone is temporarily disconnected
In Android AOSP 15 code, I see that whenever a phone gets disconnected from the Phone Book( PBAP ) Client profile, PBAPClientConnectionHandler.java calls the AccountManager.removeAccountExplicitely ...
1
vote
0
answers
162
views
Bluetooth Scanning not working on Android 15 - Samsung Galaxy S24 & S25
Our mobile application is scanning the IOT devices' data continuously over Bluetooth. The Bluetooth data is scanning in foreground and background.
Only Samsung Galaxy S24 & S25 devices having ...
- 1,325
2
votes
1
answer
107
views
Qt Classic Bluetooth Windows. I can not connect to a specific device
I'm trying to connect to a classic bluetooth device via Qt 6.9.0 on a Windows 11 Pro.
The device is a Sena Parani SD1000, that only provides the SPP profile (Serial Port Profile). No services are ...
0
votes
1
answer
53
views
Process is not killed even after swiping off from the recents section
I am working on a bluetooth Android application to read data from a device.
Issue: When I kill the app by swiping it up from recents in Samsung, the process is not killed. I checked in Running ...
0
votes
0
answers
95
views
Get Bluetooth Battery Level
My bluetooth battery can't be pulled to show. I tried pulling GATT of BLE but it seems my device is not LE.
I'm trying to get the battery information that is connected to my computer but it won't and ...
- 13
1
vote
0
answers
122
views
BlueFruit: No Arduino access to Service or Characteristic of nRF52840 devices
I installed a BlueFruit on XIAO Sense nRF52840 to handle 16+ BLE devices.
Bluefruit.begin(0, 8);
Bluefruit.setTxPower(4);
Bluefruit.setName("Bluefruit Scanner");
Bluefruit....
- 1,531
0
votes
0
answers
51
views
Facing Bluetooth connection in Flutter (Platform Exception)
I'm currently working on a Flutter application that uses the flutter_bluetooth_serial package to establish Bluetooth connections. While attempting to connect to another Bluetooth device, I'm ...
0
votes
0
answers
40
views
NativeScript Android BLE: onCharacteristicChanged not firing
I'm using NativeScript (Android) to receive heart rate notifications from a HRM device. I'm able to:
Connect to the device
Discover services and characteristics
Enable notifications via the ...
- 885