9,699 questions
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169
views
How do I make a BLE connection in compose multiplateform App. using kable Library
I am using theKable library for BLE scanning and connection in a Compose Multiplatform (KMP) app for Android and iOS. Scanning works perfectly in both the plateforms, but I am unable to establish a ...
1
vote
0
answers
44
views
can't use Windows's bluetoothleapis
Am I doing something wrong here?
I want to set values for a characteristic but the parameters look weird and not working at all
typedef struct _BTH_LE_GATT_CHARACTERISTIC_VALUE {
ULONG DataSize;...
- 29
0
votes
0
answers
489
views
Using a ESP32-C3 Super Mini as a BLE game controller
I have been working on using ESP32-C3 Super Mini to function as a button box using bluetooth.
I have managed to get the device to be able to connect via bluetooth to my pc and I can see a new game ...
- 397
0
votes
0
answers
29
views
Adafruit Bluefruit SPI friend + Arduino code
How do I rename the service and characteristic ID's of the Adafruit Bluefruit LE SPI Friend?
I have created them and I can add only one property to each, but I don't know how to rename them.
I am ...
- 1
0
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0
answers
43
views
Running async function in FUSION Script File
I am creating a script file for to be used in fusion 360, when I try executing an async function some or other kinds of errors are sure to follow.
Following is a simpler version of one of my problems:
...
0
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0
answers
49
views
How to transfer data (such as a string) from phone 1 to phones 2 using React Native App via Bluetooth?
I am developing a React Native app that allows two phones to send and receive data using Bluetooth.
I have explored react-native-ble-plx for Bluetooth Low Energy (BLE) communication.
The problem I ...
0
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0
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23
views
GattDeviceService.FromIdAsync() sometimes returns null
I am trying to connect to a BLE device using a WPF application with UWP.
I'm encountering a strange problem where GattDeviceService.FromIdAsync() sometimes returns null.
Usually when I first run my ...
- 3,686
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votes
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17
views
Andriod Bluetooth connection to Echelon, Can not activate workout and enable notifications
I am trying to connect with an Echelon pedal bike in an Android Java environment.
I have successful reverse engineered the services and packet but am having trouble deploying into the app.
We need to ...
1
vote
1
answer
329
views
How can I trace control commands from a Wahoo Kickr Core Smarttrainer?
I am developing a Progressive Web App and would like to control an indoor bike smart trainer and read data from it. I want to achieve this through the Web Bluetooth API (BLE / FTMS). I have already ...
- 13
0
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0
answers
107
views
In React-native-ble-plx, how do you read large data? I havent found anything in the library documentation
I am working on an app where you have to read a long data( more than 600 bytes). I am using the library react-native-ble-plx 3.4.0 using mtu of 500. In both ios and android, I get only partial data. ...
1
vote
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answers
80
views
BLE devices scanning - android
I need an app for android, that reads heart beat rate. The first step is to scan the devices and connect to the selected one. I have the code, but it doesn't work. BLE is active, other apps can ...
- 11
0
votes
0
answers
46
views
What is the correct way to write a BLE characteristic from the main activity in Android?
I am using Kotlin with a targeted API at 34. I am trying to create an app for a basic BLE device that I have made, right now I am simply trying to set a single characteristic when I press a button on ...
- 458
2
votes
1
answer
44
views
Bluetooth scans but doesn't find hc-05
Bluetooth is scanning but it doesn't find the hc-05 what is the reason?
\`
import 'package:flutter_blue_plus/flutter_blue_plus.dart';
import'premission.dart';
import 'package:flutter/material.dart';
...
0
votes
1
answer
216
views
Windows 11 Bluetooth Pairing using Simple Secure Pairing (SSP) mode Numeric Comparison
I am having trouble with Bluetooth Pairing on Windows 11 using Simple Secure Pairing SSP mode Numeric Comparison.
I have created a BLE peripheral with Bluetooth v4.2 hardware, capable of handling (...
- 502
1
vote
0
answers
314
views
MX11 cat thermal printer android SDK
I have Python code that handles printing, and it works well. Now, I want to implement this functionality in an Android Studio Java project. To do this, I removed all the Bluetooth-related components ...
- 11
0
votes
1
answer
66
views
Device does not appear in DeviceInformation.CreateWatcher
using Windows.Devices.Bluetooth;
using Windows.Devices.Enumeration;
/* ... */
var deviceWatcher = DeviceInformation.CreateWatcher();
deviceWatcher.Added += async (watcher, deviceInfo) => {
...
- 59
0
votes
0
answers
63
views
wclGattClient never fires OnConnect event
I have a Windows 11 PC where I'm trying to connect with a BLE device using the wclBluetoothFramework. Everything seems to work OK up until the point where I try to connect. I call wclGattClient....
- 3,686
0
votes
1
answer
42
views
X2 smartphones (IOS or Android) connecting via BLE
Is there anything that fundamentally prevents the following situation?
Imagine you have two smartphones with bluetooth low energy capabilities. I am asking about any combination of IOS or Android ...
0
votes
0
answers
66
views
STM32F4 with an ADAFRUIT BLE SPI
I'm trying to set up a bleutooth communication between my phone and my stm32 with the Adafruit module in SPI communication, but I'm having a problem.
Adafruit
When I use my arduino and the demo code ...
- 1
0
votes
1
answer
167
views
How can Micro:bit act as a Bluetooth Low Energy (BLE) Central role?
Micro:bit can act as a Bluetooth Low Energy Peripheral (using SoftDevice S113). But the nRF51822 and nRF52833 SoC, which Micro:bits v1 and v2 are based on, should also support BLE Central role (using ...
- 30.1k
0
votes
0
answers
21
views
iOS reuses the paired classic Bluetooth connection to access BLE services
I have now broadcast a BLE service on an Android device, and I expect that when iOS connects to this service, pairing will be initiated in the callback and the ANCS service of iOS will be discovered. ...
- 101
0
votes
0
answers
66
views
Can't read weight measurement characteristic
I have a BLE enabled weight machine beurer BF950. I am unable to read weight data from it. From the company, an excel sheet is provided with mentioned UUIds. In the following code, it doesn't enter ...
0
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0
answers
19
views
Mass control over many BLE Spinner Hats
Very Novice!
Is the following a possibility?
Scenario:
200 people on a football field with Bluetooth controlled spinner hats that use the nrf52832
The spinner hats (the ones with a propeller on top) ...
0
votes
0
answers
63
views
How to scan and extract UUID, Major, and Minor values from BLE devices using Java?
I am trying to scan BLE (Bluetooth Low Energy) devices using Java and extract specific information such as the UUID, Major, and Minor values from their advertisement packets.
I have set up Bluetooth ...
- 11
-1
votes
1
answer
99
views
Coexistence of Bluetooth LE and Classic for Embedded A2DP sink. Android Phone compatibility issue
I am working on an Embedded Audio Product. It is configured as an A2DP sink (Bluetooth Classic). We also use BLE GATT services as a method of control for our companion apps (in-browser with web-...
- 65