All Questions
Tagged with bluetooth-gatt flutter
16
questions
0
votes
0
answers
24
views
Flutter: universal_ble package. Can't set notification on the bluetooth device
I have 2 apps: desktop on Flutter and mobile Java on Android. What I'm tryin to do is to connect to the Android app's GattServer and set its characteristic to notify me when its value change through ...
- 13
1
vote
1
answer
145
views
Flutter app can't discover certain peripherals with IOS/Swift's BluetoothCore lib
I'm working on a Flutter App, and I'm writing some platform code in Swift to be able to connect to both Bluetooth Classic and BLE devices.
Flutter packages are unfortunately targeted at BLE.
As of ...
0
votes
1
answer
296
views
flutter_reactive_ble : how can I obtain serviceId, characteristicId, and deviceId
I obtained devices through scanForDevices in flutter_react_ble, and the result looks like this:
DiscoveredDevice(id: F0EC76B3-7C7D-2460-5AFA-8F1B586E1849, name: AD_401_RAC_056905_WW_db5a, serviceData: ...
- 43
0
votes
1
answer
384
views
I am working on a Flutter app that reads data from a BLE device
I am working on a Flutter app that reads data from a BLE device, and the device sends data when I write a command to it. If I want to receive the latest data, should I keep sending the command ...
1
vote
0
answers
266
views
How do I make my FLUTTER app collect data from an ergometer exercise machine that uses FTMS Bluetooth connectivity?
my friends. I am working on a graduation project and would like your help, please.
One of the functionalities is to connect the exercise machine via Bluetooth to the app (this part is already done). ...
1
vote
0
answers
744
views
Flutter blue plus library, when trying to read a characteristics from esp32 driver getting PlatformException
here I'm trying to read a characteristics from esp32 driver and I'm getting these issues.
"PlatformException(read_characteristic_error,unknown reason,may occur if readCharacteristic was called ...
2
votes
1
answer
897
views
Can any BLE device be a Companion Device?
I'm developing a flutter application (fairly new to this).
My app need to connect to a BLE device and get data when it is close by. As I found Android Companion Device Manage seems to suit my ...
0
votes
0
answers
64
views
What data does the mobile app send to a Bluetooth LE electro-stimulation device?
I have a Bluetooth LE electrostimulation device that connects to a mobile app and the app sends data to the device to start doing the electrical pulse,
I have the mobile application code (native ...
- 1
1
vote
0
answers
461
views
Irregular GATT_INVALID_HANDLE error on python GATT server
I am facing a problem with my flutter app accessing a GATT python endpoint. Sometimes, I do receive the following error message reading a characteristic on my remote machine (RPI 3b):
Unhandled ...
- 11
-1
votes
1
answer
901
views
Flutter acquire data from BLE
Hi I'm trying to get some measurement data from a ble decice and display it in my flutter app. I'm also using flutter_reactive_ble
I have two characteristics, one for reading and one for writing. I ...
- 518
1
vote
1
answer
753
views
BLE multiple connections
I am trying to create a mobile app using flutter that connects and reads/writes data from multiple Bluetooth low energy devices. I am a beginner in flutter and I have read that using BluetoothGatt you ...
1
vote
1
answer
1k
views
Decode Ble data raw flutter
I'm developing a flutter app using the flutter_blue library to interface a BlueNRG-tile from STMicroelectronics. I'm receiving the the raw data from the desired caracteristics then i'm note able ble ...
- 11
0
votes
2
answers
1k
views
Executing multiple async functions not in parallel Dart/Flutter
I have an application that communicates to a device over Bluetooth using BLE. It uses GATT. In simple terms, I send a command to address 1, receive a response on address 2. This is not relevant to the ...
- 716
1
vote
0
answers
144
views
How to make sense out of bluetooth characteristics (Cycling Speed and Cadence) data in flutter?
I am getting following output while cycling using a smart trainer which is attached to Bluetooth sensor which gives cycling speed and cadence values:
flutter: [0, 23, 19, 9, 20, 20, 22, 14, 28, 24, ...
