All Questions
Tagged with bluetooth-gatt c#
23
questions
0
votes
0
answers
72
views
How do I make a GATT server's read characteristic editable?
Im working on making a GATT server that can be connected to by a client application, that will eventually send data to said client. the way I understand it, is that the only value the client can see ...
- 1
0
votes
1
answer
148
views
BLE Cycle Trainer Write Characteristic UUID 2AD9 - How to adjust resistance based on what's happening in game?
Hello overflow friends,
I'd be eternally grateful if one of the resident BLE geniuses on this forum wouldn't mind helping me. I've been trying to build a little cycling game in c# and so far I've ...
1
vote
0
answers
247
views
C#, BLE, BT5.0 - GetGattServicesAsync hangs forever. Why and is this a known issue?
I had to implement a bluetooth low energy interface in an older Software for the communication with Bluetooth devices. It's a WPF application targeting .NET Framework 4.8. To access the Windows....
- 11
0
votes
1
answer
464
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Bluetooth LE plugin for Xamarin & MAUI Notify Event throwing an error
I am trying to enable the notify event for a Telink Bluetooth Mesh Device. I am using Visual Studio 2022 (Version 17.7.2) and created a MAUI App with the Plugin.BLE (Version 3.0.0-beta.5). I can ...
- 11
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59
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Reading real values from GattCharacteristicValueChangedEventArgs for indoor bike data
i am experimenting in reading bluetooth characteristics values from my indoor bike trainer. I can connect and i get callbacks on the CharacteristicValueChanged but after a lot of trying i cannot ...
- 1,690
2
votes
0
answers
328
views
Bluetooth notify gatt characteristic losing data
I am receiving a large amount of real-time data from a BTLE device using a notify GATT Characteristic. We're definitely reaching the bandwidth limits of the protocol, the device is capable of sending ...
- 313
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votes
2
answers
1k
views
Write to Bluetooth LE Characteristic as a Server in WPF or UWP
I want to write into a Bluetooth LE Characteristic. (wpf c#, but has to work with UWP also)
I'm not exactly sure how this works, because I want to write a value not as a client, but as the server.
...
- 11
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votes
1
answer
259
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Defining GattCharacteristic as a Server
I want to fill my variable "selectedCharacteristic" with
GattCharacteristic selectedCharacteristic
selectedCharacteristic = Constants.ResultCharacteristicUuid;
Unfortunately, this ...
- 11
1
vote
0
answers
1k
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BLE - Bluetooth Low Energy - C# Problem with the Gatt services
I'm working on a Project (Console-Application .NET Framework 4.7.2 c#) to find nearby BLE devices and it's working well, the device(The device is just an Arduino with a BLE shield.) is discovered and ...
1
vote
1
answer
582
views
BGScript GATT characteristic write from C# not working
In my device configuration, gatt.xml, I added a custom GATT characteristic with a custom UUID and enabled the read and write properties. Using windows Bluetooth API after pairing, when I try to read ...
- 78
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votes
1
answer
917
views
In BLE GATT profile are characterstics really being read or written?
According to the specification of BLE GATT profile characteristics are the smallest unit of data that can be exchanged between a GATT server or client. A GATT client can request to read or write to ...
- 79
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377
views
BLE device no longer connectable in windows 10
I have been working on a BLE device using an arduino nano 33 BLE since this past May. During the summer and into the fall the device worked fine and I continued to develop my software. I took a break ...
- 1
0
votes
0
answers
405
views
Retrieving value from bluetooth BLE device
In my windows forms app I am starting to enumerate list of devices as follows:
DeviceWatcher deviceWatcher =
DeviceInformation.CreateWatcher(
...
- 7,492
1
vote
0
answers
508
views
Bluetooth LE Current Battery Percentage
Good day! Cant get battery percentage in percent. Ive successfully connected to GATT services, thed did this:
public override void OnServicesDiscovered(BluetoothGatt Gatt, [GeneratedEnum] GattStatus ...
7
votes
1
answer
618
views
How to fix GattStatus: 3 - WriteNotPermitted exception for BLE Xamarin forms application?
I am working on a BLE application. I am able to connect to MI band and get the services through my Xamarin forms BLE app. But when I am trying to write characteristics I am getting exception. I'm ...
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