public async Task ConnectToDevice(DeviceInformation device)
{
this.State = ConnectionState.Connecting;
try
{
serialConnection = await SerialDevice.FromIdAsync(device.Id);
if (serialConnection != null)
{
serialConnection.BaudRate = 115200;
serialConnection.DataBits = 8;
serialConnection.Parity = SerialParity.None;
writer = new DataWriter(serialConnection.OutputStream);
reader = new DataReader(serialConnection.InputStream);
Task listen = ListenForMessagesAsync();
this.State = ConnectionState.Connected;
}
else {
Debugger.ReportToDebugger(this, "Unable to create service.\nMake sure that the 'serialcommunication' capability is declared with a function of type 'name:serialPort' in Package.appxmanifest.", Debugger.Device.Pc);
this.State = ConnectionState.Failure;
}
}
catch (TaskCanceledException ex)
{
this.State = ConnectionState.Failure;
Debugger.ReportToDebugger(this, ex.Message, Debugger.Device.Pc);
}
catch (Exception ex)
{
this.State = ConnectionState.Failure;
Debugger.ReportToDebugger(this, ex.Message, Debugger.Device.Pc);
}
}
private async Task<bool> GetHrAndBatteryDevice()
{
StatusInformation = "Start search for devices, HR";
var devices = await DeviceInformation.FindAllAsync(
GattDeviceService.GetDeviceSelectorFromUuid(GattServiceUuids.HeartRate));
if (null == devices || devices.Count <= 0) return true;
foreach (var device in devices.Where(device => device.Name == "Polar H7 498C1817"))
{
_devicePolarHr = device;
StatusInformation2 = "Found hr device";
break;
}
StatusInformation = "Start search for devices, Battery";
devices = await DeviceInformation.FindAllAsync(
GattDeviceService.GetDeviceSelectorFromUuid(GattServiceUuids.Battery));
if (null == devices || devices.Count <= 0) return true;
foreach (var device in devices.Where(device => device.Name == "Polar H7 498C1817"))
{
_devicePolarBattery = device;
StatusInformation2 = "Found battery device";
break;
}
StatusInformation = $"Found HR [{(_devicePolarHr != null)}] Battery [{(_devicePolarBattery != null)}]";
return (_devicePolarHr != null && _devicePolarBattery != null);
}
// Using device type decideds which device object to initilise, this allows for dynamic object creation.
public static DeviceBase GetDeviceObject(DeviceInformation deviceInfo, DeviceType type)
{
DeviceBase device = null;
// Main switch statement to handle the creation of the device objects.
switch (type)
{
case DeviceType.GenericAccess:
device = new GenericAccessDevice();
break;
case DeviceType.HeartRate:
device = new HeartRateMonitorDevice();
break;
}
if (device == null)
{
// Display error if device does not have a value and return null.
MessageHelper.DisplayBasicMessage(StringResources.InitialisationError);
return device;
}
device.Initialise(deviceInfo.Id);
return device;
}
public async Task<int> ProjectAsync(Type viewType, DeviceInformation device = null)
{
int mainViewId = ApplicationView.GetForCurrentView().Id;
int? secondViewId = null;
var view = CoreApplication.CreateNewView();
await view.Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
secondViewId = ApplicationView.GetForCurrentView().Id;
var rootFrame = new Frame();
rootFrame.Navigate(viewType, null);
Window.Current.Content = rootFrame;
Window.Current.Activate();
});
if (secondViewId.HasValue)
{
if(device == null)
await ProjectionManager.StartProjectingAsync(secondViewId.Value, mainViewId);
else
await ProjectionManager.StartProjectingAsync(secondViewId.Value, mainViewId, device);
}
return mainViewId;
}
private void DeviceAdded(DeviceWatcher sender, DeviceInformation args)
{
if (ExternalDeviceAdded != null)
{
ExternalDeviceAdded(this, args.Id);
}
}
/// <summary>
/// Invoked when the device watcher detects that the proximity sensor was added.
/// </summary>
/// <param name="sender">The device watcher.</param>
/// <param name="device">The device that was added.</param>
private async void OnProximitySensorAddedAsync(DeviceWatcher sender, DeviceInformation device)
{
if (this.proximitySensor == null)
{
var addedSensor = ProximitySensor.FromId(device.Id);
if (addedSensor != null)
{
var minimumDistanceSatisfied = true;
//if we care about minimum distance
if (this.MinimumDistanceInMillimeters > Int32.MinValue)
{
if ((this.MinimumDistanceInMillimeters > addedSensor.MaxDistanceInMillimeters) ||
(this.MinimumDistanceInMillimeters < addedSensor.MinDistanceInMillimeters))
{
minimumDistanceSatisfied = false;
}
}
if (minimumDistanceSatisfied)
{
this.proximitySensor = addedSensor;
await SetActiveFromReadingAsync(this.proximitySensor.GetCurrentReading());
this.proximitySensor.ReadingChanged += ProximitySensor_ReadingChangedAsync;
}
}
}
}
private HidGamepad(DeviceInformation deviceInformation, HidDevice device)
{
_deviceInformation = deviceInformation;
_device = device;
_device.InputReportReceived += HandleInputReportRecieved;
}
public UsbConnection(DeviceInformation deviceInfo)
{
UpdateRate = 1000;
DevicePath = deviceInfo.Id;
SerialNumber = DevicePath.Split('#')[2];
Name = deviceInfo.Name;
}
/// <summary>
/// Invoked when the device watcher finds a matching custom sensor device
/// </summary>
/// <param name="watcher">device watcher</param>
/// <param name="customSensorDevice">device information for the custom sensor that was found</param>
public async void OnCustomSensorAdded(DeviceWatcher watcher, DeviceInformation customSensorDevice)
{
try
{
customSensor = await CustomSensor.FromIdAsync(customSensorDevice.Id);
if (customSensor != null)
{
CustomSensorReading reading = customSensor.GetCurrentReading();
if (!reading.Properties.ContainsKey(CO2LevelKey))
{
rootPage.NotifyUser("The found custom sensor doesn't provide CO2 reading", NotifyType.ErrorMessage);
customSensor = null;
}
}
else
{
rootPage.NotifyUser("No custom sensor found", NotifyType.ErrorMessage);
}
}
catch (Exception e)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("The user may have denied access to the custom sensor. Error: " + e.Message, NotifyType.ErrorMessage);
});
}
}
/// <summary>
/// Finds the GattDeviceService for a specified device by serviceUuid
/// IMPORTANT: Has to be called from UI thread the first time the app uses the device to be able to ask the user for permission to use it.
/// </summary>
/// <returns>Returns the gatt device service of the first device that supports it. Returns null if access is denied.</returns>
/// <exception cref="DeviceNotFoundException">Thrown if there isn't a device which provides the service Uuid.</exception>
public async static Task<GattDeviceService> GetDeviceService(DeviceInformation device, string serviceUuid)
{
Validator.RequiresNotNullOrEmpty(serviceUuid, "serviceUuid");
Validator.RequiresNotNull(device, "device");
return await GattDeviceService.FromIdAsync(device.Id);
}
private static async void HandleDeviceAdded(DeviceWatcher sender, DeviceInformation args)
{
var device = await HidDevice.FromIdAsync(args.Id, FileAccessMode.Read);
var gamepad = new HidGamepad(args, device);
_gamepads.Add(args.Id, gamepad);
GamepadAdded?.Invoke(sender, gamepad);
}
/// <summary>
/// Invoked when the device watcher finds a proximity sensor
/// </summary>
/// <param name="sender">The device watcher</param>
/// <param name="device">Device information for the proximity sensor that was found</param>
private async void OnProximitySensorAdded(DeviceWatcher sender, DeviceInformation device)
{
if (null == sensor)
{
ProximitySensor foundSensor = ProximitySensor.FromId(device.Id);
if (null != foundSensor)
{
if (null != foundSensor.MaxDistanceInMillimeters)
{
// Check if this is the sensor that matches our ranges.
// TODO: Customize these values to your application's needs.
// Here, we are looking for a sensor that can detect close objects
// up to 3cm away, so we check the upper bound of the detection range.
const uint distanceInMillimetersLValue = 30; // 3 cm
const uint distanceInMillimetersRValue = 50; // 5 cm
if (foundSensor.MaxDistanceInMillimeters >= distanceInMillimetersLValue &&
foundSensor.MaxDistanceInMillimeters <= distanceInMillimetersRValue)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Found a proximity sensor that meets the detection range", NotifyType.StatusMessage);
});
}
else
{
// We'll use the sensor anyway, to demonstrate how events work.
// Your app may decide not to use the sensor.
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Proximity sensor does not meet the detection range, using it anyway", NotifyType.StatusMessage);
});
}
}
else
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Proximity sensor does not report detection ranges, using it anyway", NotifyType.StatusMessage);
});
}
if (null != foundSensor)
{
sensor = foundSensor;
}
}
else
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Could not get a proximity sensor from the device id", NotifyType.ErrorMessage);
});
}
}
}
private async void DeviceWatcher_Added(DeviceWatcher sender, DeviceInformation args)
{
await coreDispatcher.RunAsync(
CoreDispatcherPriority.Normal,
() =>
{
FoundDeviceList.Add(args);
});
}
private void DeviceList_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
if (DeviceList.SelectedIndex > -1)
{
_selectedDevice = (DeviceList.SelectedItem as DeviceViewModel).Information;
_owner.OnDeviceSelected(_selectedDevice);
Hide();
}
}
private async void CameraSelectionList_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
string selectedCameraItem = e.AddedItems.FirstOrDefault().ToString();
foreach (DeviceInformation item in _allVideoDevices)
{
if (string.Equals(item.Name, selectedCameraItem))
{
_desiredDevice = item;
await StartDeviceAsync();
}
}
}
private async void StartProjecting(DeviceInformation selectedDisplay)
{
// If projection is already in progress, then it could be shown on the monitor again
// Otherwise, we need to create a new view to show the presentation
if (rootPage.ProjectionViewPageControl == null)
{
// First, create a new, blank view
var thisDispatcher = Window.Current.Dispatcher;
await CoreApplication.CreateNewView().Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
// ViewLifetimeControl is a wrapper to make sure the view is closed only
// when the app is done with it
rootPage.ProjectionViewPageControl = ViewLifetimeControl.CreateForCurrentView();
// Assemble some data necessary for the new page
var initData = new ProjectionViewPageInitializationData();
initData.MainDispatcher = thisDispatcher;
initData.ProjectionViewPageControl = rootPage.ProjectionViewPageControl;
initData.MainViewId = thisViewId;
// Display the page in the view. Note that the view will not become visible
// until "StartProjectingAsync" is called
var rootFrame = new Frame();
rootFrame.Navigate(typeof(ProjectionViewPage), initData);
Window.Current.Content = rootFrame;
// The call to Window.Current.Activate is required starting in Windos 10.
// Without it, the view will never appear.
Window.Current.Activate();
});
}
try
{
// Start/StopViewInUse are used to signal that the app is interacting with the
// view, so it shouldn't be closed yet, even if the user loses access to it
rootPage.ProjectionViewPageControl.StartViewInUse();
// Show the view on a second display that was selected by the user
rootPage.NotifyUser("Starting projection on " + selectedDisplay.Name, NotifyType.StatusMessage);
await ProjectionManager.StartProjectingAsync(rootPage.ProjectionViewPageControl.Id, thisViewId, selectedDisplay);
rootPage.NotifyUser("Projection started with success on " + selectedDisplay.Name, NotifyType.StatusMessage);
rootPage.ProjectionViewPageControl.StopViewInUse();
}
catch (InvalidOperationException)
{
rootPage.NotifyUser("Start projection failed", NotifyType.ErrorMessage);
}
}
private MediaCaptureInitializationSettings InitCaptureSettings(DeviceInformation device)
{
MediaCaptureInitializationSettings captureInitSettings = new MediaCaptureInitializationSettings();
captureInitSettings.AudioDeviceId = "";
captureInitSettings.VideoDeviceId = device.Id;
captureInitSettings.StreamingCaptureMode = settings.IsVolumeOn
? StreamingCaptureMode.AudioAndVideo
: StreamingCaptureMode.Video;
captureInitSettings.PhotoCaptureSource = PhotoCaptureSource.VideoPreview;
return captureInitSettings;
}
public static ConnectedDeviceDefinition GetDeviceInformation(wde.DeviceInformation deviceInformation, DeviceType deviceType)
{
var retVal = WindowsDeviceFactoryBase.GetDeviceDefinitionFromWindowsDeviceId(deviceInformation.Id, deviceType);
//foreach (var keyValuePair in deviceInformation.Properties)
//{
// if (keyValuePair.Key == ProductNamePropertyName) retVal.ProductName = (string)keyValuePair.Value;
// System.Diagnostics.Debug.WriteLine($"{keyValuePair.Key} {keyValuePair.Value}");
//}
retVal.ProductName = deviceInformation.Name;
return(retVal);
}
public UwpHidDeviceInformation([NotNull] UwpHidDeviceFactory factory, [NotNull] DeviceInformation deviceInformation)
{
if (factory == null)
{
throw new ArgumentNullException(nameof(factory));
}
if (deviceInformation == null)
{
throw new ArgumentNullException(nameof(deviceInformation));
}
this.factory = factory;
this.deviceInformation = deviceInformation;
}
private void watcher_Added(Windows.Devices.Enumeration.DeviceWatcher sender, Windows.Devices.Enumeration.DeviceInformation args)
{
string name = GetPortableDeviceName(args.Id);
string type = GetPortableDeviceType(args.Id);
if (!deviceTypeList.ContainsKey(name))
{
deviceTypeList.Add(GetPortableDeviceName(args.Id), GetPortableDeviceType(args.Id));
}
this.BeginInvoke((Action)(() =>
{
//perform on the UI thread
PrintDrives();
}));
}
/// <summary>
/// Invoked when the device watcher finds a proximity sensor
/// </summary>
/// <param name="sender">The device watcher</param>
/// <param name="device">Device information for the proximity sensor that was found</param>
private async void OnProximitySensorAdded(DeviceWatcher sender, DeviceInformation device)
{
if (null == sensor)
{
sensor = ProximitySensor.FromId(device.Id);
if (null == sensor)
{
// failed to find the sensor corresponding to the id
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Could not get a proximity sensor from the device id", NotifyType.ErrorMessage);
});
}
}
}
private async void Picker_DisconnectButtonClicked(DialDevicePicker sender, DialDisconnectButtonClickedEventArgs args)
{
// casting 必須在 UI Thread 下執行
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async () =>
{
try
{
// 取得被選擇的 dial device
DialDevice selectedDialDevice = await DialDevice.FromIdAsync(args.Device.Id);
// 更新 picker status
picker.SetDisplayStatus(selectedDialDevice, DialDeviceDisplayStatus.Connecting);
// 取得 dial app
DialApp app = selectedDialDevice.GetDialApp(txtAppName.Text);
// 請求斷綫
DialAppStopResult result = await app.StopAsync();
if (result == DialAppStopResult.Stopped)
{
picker.SetDisplayStatus(args.Device, DialDeviceDisplayStatus.Disconnected);
activeDialDevice = null;
activeDeviceInformation = null;
picker.Hide();
tblMsg.Text += "Stoped, success";
}
else
{
if (result == DialAppStopResult.StopFailed || result == DialAppStopResult.NetworkFailure)
{
// 如果失敗的話要記得多 retry 的機制
picker.SetDisplayStatus(args.Device, DialDeviceDisplayStatus.Error);
tblMsg.Text += $"Stoped, {result}";
}
else
{
// 如果設備沒有支援 Stop 機制，則直接清楚連綫就好
activeDialDevice = null;
activeDeviceInformation = null;
tblMsg.Text += "the device does not support Stop";
}
}
}
catch (Exception ex)
{
tblMsg.Text += ex.Message;
}
});
}
/// <summary>
/// Retrieves the sensors GATT device service from a specified DeviceInformation and saves it for further usage.
/// IMPORTANT: Has to be called from UI thread the first time the app uses the device to be able to ask the user for permission to use it
/// </summary>
/// <returns>Indicates if the gatt service could be retrieved and set successfully</returns>
public async Task<bool> Initialize(DeviceInformation deviceInfo)
{
Validator.RequiresNotNull(deviceInfo);
if (!deviceInfo.Id.Contains(SensorServiceUuid))
throw new ArgumentException("Wrong DeviceInformation passed. You need to get the right DeviceInformation via SPECIFICSENSORCLASS.SensorServiceUuid.");
if (this.deviceService != null)
{
Clean();
}
this.deviceService = await GattDeviceService.FromIdAsync(deviceInfo.Id);
if (this.deviceService == null)
return false;
return true;
}
static private async void DeviceWatcher_Added(DeviceWatcher sender, Windows.Devices.Enumeration.DeviceInformation deviceInfo)
{
Debug.WriteLine(String.Format("Added {0}{1}", deviceInfo.Id, deviceInfo.Name));
// Protect against race condition if the task runs after the app stopped the deviceWatcher.
if (sender == deviceWatcher)
{
CSLibrary.DeviceFinder.DeviceInfomation di = new CSLibrary.DeviceFinder.DeviceInfomation();
di.deviceName = deviceInfo.Name;
di.ID = (uint)_deviceDB.Count;
di.nativeDeviceInformation = (object)deviceInfo;
_deviceDB.Add(deviceInfo);
RaiseEvent <DeviceFinderArgs>(OnSearchCompleted, new DeviceFinderArgs(di));
}
}
/// <summary>
/// Invoked when the device watcher finds a proximity sensor
/// </summary>
/// <param name="sender">The device watcher</param>
/// <param name="device">Device information for the proximity sensor that was found</param>
private async void OnProximitySensorAdded(DeviceWatcher sender, DeviceInformation device)
{
if (null == sensor)
{
ProximitySensor foundSensor = ProximitySensor.FromId(device.Id);
if (null != foundSensor)
{
sensor = foundSensor;
}
else
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Could not get a proximity sensor from the device id", NotifyType.ErrorMessage);
});
}
}
}
private static void GetBtDevicesAndList()
{
IReadOnlyList<string> list= new List<string>();
Console.WriteLine("Start Get Devices");
var bts = DeviceInformation.FindAllAsync(); // .FindAllAsync().GetResults();
do
{
Thread.Sleep(100);
} while (bts.Status != AsyncStatus.Completed);
var i = 0;
foreach (var di in bts.GetResults())
{
i++;
if (di.Name == deviceName)
_parrot = di;
}
Console.WriteLine("{0} Devices Found", i);
}
private async void Picker_DeviceSelected(DevicePicker sender, DeviceSelectedEventArgs args)
{
//Casting must occur from the UI thread. This dispatches the casting calls to the UI thread.
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async () =>
{
try
{
// Set status to Connecting
picker.SetDisplayStatus(args.SelectedDevice, "Connecting", DevicePickerDisplayStatusOptions.ShowProgress);
// Getting the selected device improves debugging
DeviceInformation selectedDevice = args.SelectedDevice;
try
{
await ProjectionManager.StartProjectingAsync(ApplicationView.GetApplicationViewIdForWindow(CoreWindow.GetForCurrentThread()), thisViewId, selectedDevice);
}
catch (Exception ex)
{
if (!ProjectionManager.ProjectionDisplayAvailable)
throw ex;
}
try
{
activeDevice = selectedDevice;
// Set status to Connected
picker.SetDisplayStatus(args.SelectedDevice, "Connected", DevicePickerDisplayStatusOptions.ShowDisconnectButton);
picker.Hide();
}
catch (Exception)
{
try { picker.SetDisplayStatus(args.SelectedDevice, "Connection Failed", DevicePickerDisplayStatusOptions.ShowRetryButton); } catch { }
}
}
catch (Exception ex)
{
}
});
}
private async void ButtonBase_OnClick(object sender, RoutedEventArgs e)
{
if (ButtonLoad.Content.ToString() == "Connect ...")
{
await SuscribeToHrValues();
await DisplayBatteryLevel();
DeviceFoundMessage = $@"[{_devicePolarHr.Name}]
Connected";
ButtonLoad.Content = "Disconnect ...";
}
else
{
ButtonLoad.Content = "Connect ...";
BatteryValue = "";
DeviceFoundMessage = "";
_devicePolarHr = null;
_devicePolarBattery = null;
}
}
private async void ConnectToDevice()
{
foreach(var item in deviceCollection)
{
if (item.Name == deviceName)
{
selectedDevice = item;
break;
}
}
if (selectedDevice == null)
{
errorStatus.Visibility = Visibility.Visible;
errorStatus.Text = "Cannot find the device specified; Please check the device name";
return;
}
else
{
deviceService = await RfcommDeviceService.FromIdAsync(selectedDevice.Id);
if (deviceService != null)
{
//connect the socket
try
{
await streamSocket.ConnectAsync(deviceService.ConnectionHostName, deviceService.ConnectionServiceName);
}
catch (Exception ex)
{
errorStatus.Visibility = Visibility.Visible;
errorStatus.Text = "Cannot connect bluetooth device:" + ex.Message;
}
}
else
{
errorStatus.Visibility = Visibility.Visible;
errorStatus.Text = "Didn't find the specified bluetooth device";
}
}
}
public static ConnectedDeviceDefinition GetDeviceInformation(wde.DeviceInformation deviceInformation, DeviceType deviceType, ILogger logger)
{
if (deviceInformation == null)
{
throw new ArgumentNullException(nameof(deviceInformation));
}
var retVal = WindowsDeviceFactoryBase.GetDeviceDefinitionFromWindowsDeviceId(deviceInformation.Id, deviceType, logger);
//foreach (var keyValuePair in deviceInformation.Properties)
//{
// if (keyValuePair.Key == ProductNamePropertyName) retVal.ProductName = (string)keyValuePair.Value;
// System.Diagnostics.Debug.WriteLine($"{keyValuePair.Key} {keyValuePair.Value}");
//}
retVal.ProductName = deviceInformation.Name;
return(retVal);
}
/// <summary>
/// Invoked when the device watcher finds a proximity sensor
/// </summary>
/// <param name="sender">The device watcher</param>
/// <param name="device">Device information for the proximity sensor that was found</param>
private async void OnProximitySensorAdded(DeviceWatcher sender, DeviceInformation device)
{
if (null == sensor)
{
ProximitySensor foundSensor = ProximitySensor.FromId(device.Id);
if (null != foundSensor)
{
// Optionally check the ProximitySensor.MaxDistanceInCentimeters/MinDistanceInCentimeters
// properties here. Refer to Scenario 1 for details.
sensor = foundSensor;
}
else
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("Could not get a proximity sensor from the device id", NotifyType.ErrorMessage);
});
}
}
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
// Request the right to have background tasks run in the future. This need only be done once
// after the app is installed, but it is harmless to do it every time the app is launched.
if (await BackgroundExecutiondManager.RequestAccessAsync() == BackgroundAccessStatus.Denied)
{
// TODO: What?
}
// Acquire the set of background tasks that we already have registered. Store them into a dictionary, keyed
// by task name. (For each LE device, we will use a task name that is derived from its Bluetooth address).
Dictionary <string, BackgroundTaskRegistration> taskRegistrations = new Dictionary <string, BackgroundTaskRegistration>();
foreach (BackgroundTaskRegistration reg in BackgroundTaskRegistration.AllTasks.Values)
{
taskRegistrations[reg.Name] = reg;
}
// Get the list of paired Bluetooth LE devicdes, and add them to our 'devices' list. Associate each device with
// its pre-existing registration if any, and remove that registration from our dictionary.
Devices.Clear();
foreach (DeviceInformation di in await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector()))
{
BluetoothLEDevice bleDevice = await BluetoothLEDevice.FromIdAsync(di.Id);
SmartPack device = new SmartPack(bleDevice);
if (taskRegistrations.ContainsKey(device.TaskName))
{
device.TaskRegistration = taskRegistrations[device.TaskName];
taskRegistrations.Remove(device.TaskName);
}
Devices.Add(device);
}
// Unregister any remaining background tasks that remain in our dictionary. These are tasks that we registered
// for Bluetooth LE devices that have since been unpaired.
foreach (BackgroundTaskRegistration reg in taskRegistrations.Values)
{
reg.Unregister(false);
}
}
/// <summary>
/// Connect to the device
/// </summary>
/// <param name="portName">the name of the device to connect.</param>
public override async void Connect(string portName = null)
{
if (this.Connected)
return;
try
{
this._currentDevice = (await this.AvailableDevicesAsync()).SingleOrDefault(d => d.Name == portName);
this._socket = new StreamSocket();
this._rfcommService = await RfcommDeviceService.FromIdAsync(this._currentDevice.Id);
await this._socket.ConnectAsync(this._rfcommService.ConnectionHostName, this._rfcommService.ConnectionServiceName, SocketProtectionLevel.BluetoothEncryptionAllowNullAuthentication);
this._writer = new DataWriter(this._socket.OutputStream);
this._reader = new DataReader(this._socket.InputStream);
this._connected = true;
this.DataReceivedAsync();
}
catch
{
this._connected = false;
}
}
private async Task EnumerateCamerasAsync()
{
try
{
discoveredCameras = await DeviceInformation.FindAllAsync(DeviceClass.VideoCapture);
if (discoveredCameras == null || discoveredCameras.Count == 0)
{
Debug.WriteLine("No cameras found!");
return;
}
// Iterate through the devices to discover which is front camera and which is back camera
foreach (var dev in discoveredCameras)
{
var location = dev.EnclosureLocation;
if (location != null)
{
if (location.Panel == Panel.Back)
{
backCamera = dev;
Debug.WriteLine("Back camera found: " + dev.Name);
}
if (location.Panel == Panel.Front)
{
frontCamera = dev;
Debug.WriteLine("Front camera found: " + dev.Name);
}
}
}
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
}
/// <summary>
/// comPortInput_Click: Action to take when 'Connect' button is clicked
/// - Get the selected device index and use Id to create the SerialDevice object
/// - Configure default settings for the serial port
/// - Create the ReadCancellationTokenSource token
/// - Start listening on the serial port input
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
public async void SelectDevice(DeviceInformation device)
{
try
{
serialPort = await SerialDevice.FromIdAsync(device.Id);
// Configure serial settings
serialPort.BaudRate = 9600;
serialPort.Parity = SerialParity.None;
serialPort.StopBits = SerialStopBitCount.One;
serialPort.DataBits = 8;
// Create cancellation token object to close I/O operations when closing the device
ReadCancellationTokenSource = new CancellationTokenSource();
_streamReader = new InputStreamReader(serialPort.InputStream, 31);
_streamReader.OnLineRead += OnLineRead;
_streamReader.StartReading();
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
/// <summary>
/// Invoked when the device watcher finds a matching custom sensor device
/// </summary>
/// <param name="watcher">device watcher</param>
/// <param name="customSensorDevice">device information for the custom sensor that was found</param>
public async void OnCustomSensorAdded(DeviceWatcher watcher, DeviceInformation customSensorDevice)
{
try
{
customSensor = await CustomSensor.FromIdAsync(customSensorDevice.Id);
if (customSensor != null)
{
CustomSensorReading reading = customSensor.GetCurrentReading();
if (!reading.Properties.ContainsKey(CO2LevelKey))
{
rootPage.NotifyUser("The found custom sensor doesn't provide CO2 reading", NotifyType.ErrorMessage);
customSensor = null;
}
else
{
// Select a report interval that is both suitable for the purposes of the app and supported by the sensor.
// This value will be used later to activate the sensor.
// In the case below, we defined a 200ms report interval as being suitable for the purpose of this app.
UInt32 minReportInterval = customSensor.MinimumReportInterval;
desiredReportInterval = minReportInterval > 200 ? minReportInterval : 200;
}
}
else
{
rootPage.NotifyUser("No custom sensor found", NotifyType.ErrorMessage);
}
}
catch(Exception e)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
rootPage.NotifyUser("The user may have denied access to the custom sensor. Error: " + e.Message, NotifyType.ErrorMessage);
});
}
}
/// <summary>
/// The class is mainly used as a DeviceInformation wrapper so that the UI can bind to a list of these.
/// </summary>
/// <param name="deviceInformation"></param>
public DeviceListEntry(Windows.Devices.Enumeration.DeviceInformation deviceInformation)
{
device = deviceInformation;
}
/// <summary>
/// The class is mainly used as a DeviceInformation wrapper so that the UI can bind to a list of these.
/// </summary>
/// <param name="deviceInformation"></param>
/// <param name="deviceSelector">The AQS used to find this device</param>
public UsbDeviceInformation(Windows.Devices.Enumeration.DeviceInformation deviceInformation, String deviceSelector)
{
device = deviceInformation;
this.deviceSelector = deviceSelector;
}
/// <summary>
/// The class is mainly used as a DeviceInformation wrapper so that the UI can bind to a list of these.
/// </summary>
/// <param name="deviceInformation"></param>
/// <param name="deviceSelector">The AQS used to find this device</param>
public DeviceListEntry(Windows.Devices.Enumeration.DeviceInformation deviceInformation, String deviceSelector)
{
device = deviceInformation;
this.deviceSelector = deviceSelector;
}
public DeviceViewModel(Windows.Devices.Enumeration.DeviceInformation information)
{
_information = information;
}
/// <summary>
/// The class is mainly used as a DeviceInformation wrapper so that the UI can bind to a list of these.
/// </summary>
/// <param name="deviceInformation"></param>
/// <param name="deviceSelector">The AQS used to find this device</param>
public DeviceListEntry(Windows.Devices.Enumeration.DeviceInformation deviceInformation, String deviceSelector)
{
device = deviceInformation;
this.deviceSelector = deviceSelector;
// ecsBoxDetected = Is_ECS_BOX();
}
private void InputWatcher_Added(DeviceWatcher sender, Windows.Devices.Enumeration.DeviceInformation args)
{
SetDevice();
}