私はBLE keyringを持っていますが、それはボタン(そして明らかに様々なセンサーもあります)を持っています。私はC#アプリケーションをボタンプレスに反応させたい。スマートボタンとしてBLEキーリングを使用
私の問題:
- 私は私が購読すべき特性を知りません。
- すべての特性通知を購読する場合でも、ValueChangedコールバックは決して呼び出されません。
- しばらくすると、「デバイスがコマンドを認識しません(例外:HRESULT:0x80070016)」というメッセージが表示されます。 更新:これは信頼性の低い接続が原因と考えられます。シンプルなtry/catchで周回。
Microsoft Bluetooth GATT database viewer v1.00 Copyright (c) Microsoft Corp. Selected device - GABLYS Device Address - e7be9c955801 (STATIC) [Service] Handle=0x0001 Type=0x1800(GAP) [Characteristic] Handle=0x0002 ValueHandle=0x0003 Type=0x2a00(Device Name) Properties=(Read/Write) [Value] GABLYS [Characteristic] Handle=0x0004 ValueHandle=0x0005 Type=0x2a01(Appearance) Properties=(Read) [Value] [0000] [Characteristic] Handle=0x0006 ValueHandle=0x0007 Type=0x2a04(Peripheral Preferred Connection Parameters) Properties=(Read) [Value] [1000300000006400] [Service] Handle=0x0008 Type=0x1801(GATT) [Service] Handle=0x000c Type=0x180f(Battery) [Characteristic] Handle=0x000d ValueHandle=0x000e Type=0x2a19(Battery Level) Properties=(Read/Notify) [Value] [64] [Descriptor] Handle=0x000f Type=0x2902(Client Configuration) [Value] No subscription [Service] Handle=0x0010 Type=0x1803(Link Loss) [Characteristic] Handle=0x0011 ValueHandle=0x0012 Type=0x2a06(Alert Level) Properties=(Read/Write) [Value] [00] [Service] Handle=0x0013 Type=0x1802(Immediate Alert) [Characteristic] Handle=0x0014 ValueHandle=0x0015 Type=0x2a06(Alert Level) Properties=(WriteWithoutResponse) [Service] Handle=0x0016 Type=4f172801-1867-a896-28c0-1bfbc156fa45 [Characteristic] Handle=0x0017 ValueHandle=0x0018 Type=4f172491-1867-a896-28c0-1bfbc156fa45 Properties=(Read/Notify) [Value] [01] [Descriptor] Handle=0x0019 Type=0x2902(Client Configuration) [Value] No subscription [Characteristic] Handle=0x001a ValueHandle=0x001b Type=4f172492-1867-a896-28c0-1bfbc156fa45 Properties=(Read/Notify) [Value] [00] [Descriptor] Handle=0x001c Type=0x2902(Client Configuration) [Value] No subscription [Service] Handle=0x001d Type=b0ad1523-99b2-7e1d-fc0d-6d399e1edf02 [Characteristic] Handle=0x001e ValueHandle=0x001f Type=b0ad1524-99b2-7e1d-fc0d-6d399e1edf02 Properties=(Read/Notify) [Value] [00] [Descriptor] Handle=0x0020 Type=0x2902(Client Configuration) [Value] No subscription [Characteristic] Handle=0x0021 ValueHandle=0x0022 Type=b0ad1525-99b2-7e1d-fc0d-6d399e1edf02 Properties=(Read/Write) [Value] [00] [Characteristic] Handle=0x0023 ValueHandle=0x0024 Type=b0ad1526-99b2-7e1d-fc0d-6d399e1edf02 Properties=(Read/Write) [Value] [00] [Service] Handle=0x0025 Type=89943300-2d54-b8cb-3af2-212144c5ca13 [Characteristic] Handle=0x0026 ValueHandle=0x0027 Type=89943301-2d54-b8cb-3af2-212144c5ca13 Properties=(Read/Write) [Value] [00] [Characteristic] Handle=0x0028 ValueHandle=0x0029 Type=89943302-2d54-b8cb-3af2-212144c5ca13 Properties=(Read/Notify) [Value] [00] [Descriptor] Handle=0x002a Type=0x2902(Client Configuration) [Value] No subscription [Characteristic] Handle=0x002b ValueHandle=0x002c Type=89943304-2d54-b8cb-3af2-212144c5ca13 Properties=(Read/Write) [Value] [00]
(HeartbeatFg from DrJukkaに基づいて)私のコード:ここで
はBTHGattDumpの結果だ
public async void InitializeServiceAsync(string deviceId)
{
try
{
Deinitialize();
_service = await GattDeviceService.FromIdAsync(deviceId);
if (_service != null)
{
//we could be already connected, thus lets check that before we start monitoring for changes
if (DeviceConnectionUpdated != null && (_service.Device.ConnectionStatus == BluetoothConnectionStatus.Connected))
{
DeviceConnectionUpdated(true, null);
}
_service.Device.ConnectionStatusChanged += OnConnectionStatusChanged;
Subscribe(0x0016, 0x0017);
//Let's try those once I can get at least the first one to work
//Subscribe(0x0016, 0x001a);
//Subscribe(0x001d, 0x001e);
//Subscribe(0x0025, 0x0028);
}
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("ERROR: Accessing your device failed." + Environment.NewLine + e.Message);
if (DeviceConnectionUpdated != null)
{
DeviceConnectionUpdated(false, "Accessing device failed: " + e.Message);
}
}
}
public async void Subscribe(ushort serviceHandle, ushort characteristicHandle)
{
try
{
var service = _service.Device.GattServices.Single(x => x.AttributeHandle == serviceHandle);
var characteristic = service.GetAllCharacteristics().Single(x => x.AttributeHandle == characteristicHandle);
if (characteristic.CharacteristicProperties.HasFlag(GattCharacteristicProperties.Notify))
{
var currentDescriptorValue = await characteristic.ReadClientCharacteristicConfigurationDescriptorAsync();
if ((currentDescriptorValue.Status != GattCommunicationStatus.Success) || (currentDescriptorValue.ClientCharacteristicConfigurationDescriptor != GattClientCharacteristicConfigurationDescriptorValue.Notify))
{
await characteristic.WriteClientCharacteristicConfigurationDescriptorAsync(GattClientCharacteristicConfigurationDescriptorValue.Notify);
}
characteristic.ValueChanged += Oncharacteristic_ValueChanged;
}
}
catch(Exception e)
{
Debug.WriteLine(e.Message);
}
}
private void Oncharacteristic_ValueChanged(GattCharacteristic sender, GattValueChangedEventArgs args)
{
System.Diagnostics.Debug.WriteLine($"Oncharacteristic_ValueChanged from : {sender.AttributeHandle}");
var data = new byte[args.CharacteristicValue.Length];
DataReader.FromBuffer(args.CharacteristicValue).ReadBytes(data);
System.Diagnostics.Debug.WriteLine("Oncharacteristic_ValueChanged : " + data[0]);
}
private void OnConnectionStatusChanged(BluetoothLEDevice sender, object args)
{
if (sender.ConnectionStatus == BluetoothConnectionStatus.Connected)
{
System.Diagnostics.Debug.WriteLine("Connected");
}
else
{
System.Diagnostics.Debug.WriteLine("Disconnected");
}
if (DeviceConnectionUpdated != null)
{
DeviceConnectionUpdated(sender.ConnectionStatus == BluetoothConnectionStatus.Connected, null);
}
}
出力:私は知りません
FindAllAsync devices.Count : 1
Found : GABLYS, id: \\?\BTHLEDevice#{7b122568-6677-7f8c-f8e9-af0eedb36e3a}_e7be9c955801#9&ce378e&1&0032#{6e3bb679-4372-40c8-9eaa-4509df260cd8}
'HeartbeatFg.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Dev\Perso\BLE\BLETestStuffWindows-master\HeartbeatFg\HeartbeatFg\bin\x64\Debug\AppX\Microsoft.ApplicationInsights.PersistenceChannel.dll'. Cannot find or open the PDB file.
'HeartbeatFg.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Dev\Perso\BLE\BLETestStuffWindows-master\HeartbeatFg\HeartbeatFg\bin\x64\Debug\AppX\System.Threading.dll'. Symbols loaded.
'HeartbeatFg.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Dev\Perso\BLE\BLETestStuffWindows-master\HeartbeatFg\HeartbeatFg\bin\x64\Debug\AppX\System.Diagnostics.Tracing.dll'. Module was built without symbols.
'HeartbeatFg.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Dev\Perso\BLE\BLETestStuffWindows-master\HeartbeatFg\HeartbeatFg\bin\x64\Debug\AppX\System.Linq.dll'. Symbols loaded.
'HeartbeatFg.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Dev\Perso\BLE\BLETestStuffWindows-master\HeartbeatFg\HeartbeatFg\bin\x64\Debug\AppX\System.Globalization.dll'. Module was built without symbols.
'HeartbeatFg.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Dev\Perso\BLE\BLETestStuffWindows-master\HeartbeatFg\HeartbeatFg\bin\x64\Debug\AppX\System.IO.dll'. Symbols loaded.
Device GABLYS selected, now navigating to HeartBeatPage
OnNavigatedTo
'HeartbeatFg.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Dev\Perso\BLE\BLETestStuffWindows-master\HeartbeatFg\HeartbeatFg\bin\x64\Debug\AppX\System.Runtime.Extensions.dll'. Symbols loaded.
'HeartbeatFg.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Dev\Perso\BLE\BLETestStuffWindows-master\HeartbeatFg\HeartbeatFg\bin\x64\Debug\AppX\System.Reflection.dll'. Module was built without symbols.
Connected
'HeartbeatFg.exe' (CoreCLR: CoreCLR_UWP_Domain): Loaded 'C:\Dev\Perso\BLE\BLETestStuffWindows-master\HeartbeatFg\HeartbeatFg\bin\x64\Debug\AppX\System.Reflection.Extensions.dll'. Module was built without symbols.
The thread 0x3d6c has exited with code 0 (0x0).
The thread 0x34a8 has exited with code 0 (0x0).
The thread 0x368c has exited with code 0 (0x0).
The thread 0x12b4 has exited with code 0 (0x0).
Disconnected
Exception thrown: 'System.Exception' in mscorlib.ni.dll
Connected
Exception thrown: 'System.Exception' in mscorlib.ni.dll
どのようなサービスが4f172801-1867-a896-28c0-1bfbc156fa45、b0ad1523-99b2-7e1d-fc0d-6d399e1edf02と89943300-2d54-b8cb-3af2-212144c5ca13行うのですか?インターネットで検索しても、これらのサービスには何も出ません。 – Nebr
私は実際に、これらの「非標準的な」サービスのどれが何をしているのかについての手がかりはありません。しかし、ボタンの1つがボタンの周りにある必要がありますので、ボタンを押したときに通知されることを期待しています。しかし、それは起こりません:-( – Vinzz
この情報がなければ、何をすべきかを推論することはほとんど不可能です。通知のためのすべての特性を設定することが助けにならなかったら、ものがより複雑で正しいことをすることは、唯一の考えは、その特性が通知の代わりに表示を求めていることかもしれませんが、これはまさに推測です。 – Nebr