async void getDevices()
{
var devices = await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector());
List <string> dList = new List <string>();
listView1.View = View.Details;
listView1.GridLines = true;
listView1.FullRowSelect = true;
listView1.Clear();
listView1.Columns.Add("Device Name", 150);
listView1.Columns.Add("Address", 150);
foreach (DeviceInformation di in devices)
{
BluetoothLEDevice bleDevice = await BluetoothLEDevice.FromIdAsync(di.Id);
string[] arr = new string[2];
ListViewItem itm;
//add items to ListView
arr[0] = bleDevice.Name;
arr[1] = bleDevice.BluetoothAddress.ToString();
itm = new ListViewItem(arr);
listView1.Items.Add(itm);
}
}
public async Task StartScanning()
{
using (_cancellationTokenSource = new CancellationTokenSource())
{
var cancellationToken = _cancellationTokenSource.Token;
Stopwatch stopwatch = new Stopwatch();
stopwatch.Start();
RaiseScanningStateChanged(true);
while (cancellationToken.IsCancellationRequested && stopwatch.Elapsed < TimeSpan.FromSeconds(10))
{
foreach (DeviceInformation di in
await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector()))
{
BluetoothLEDevice bleDevice = await BluetoothLEDevice.FromIdAsync(di.Id);
if (_devices.All(x => x.Address != bleDevice.BluetoothAddress.ToString()))
{
_devices.Add(ConvertDevice(bleDevice));
}
}
}
RaiseScanningStateChanged(false);
}
}
/// <summary>
/// Populates the device list and initializes all the various models.
///
/// Waiting for the async calls to complete takes a while, so we want to call this
/// function somewhat sparingly.
/// </summary>
/// <returns></returns>
public static async Task PopulateDeviceListAsync()
{
// Remove all devices and start from scratch
PairedDevices.Clear();
// Asynchronously get all paired/connected bluetooth devices.
var infoCollection = await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector());
// Re-add devices
foreach (DeviceInformation info in infoCollection)
{
// Make sure we don't initialize duplicates
if (PairedDevices.FindIndex(device => device.DeviceId == info.Id) >= 0)
{
continue;
}
BluetoothLEDevice WRTDevice = await BluetoothLEDevice.FromIdAsync(info.Id);
BEDeviceModel deviceM = new BEDeviceModel();
deviceM.Initialize(WRTDevice, info);
PairedDevices.Add(deviceM);
}
/*
* FUTURE
*
* Consider reading one characteristic from each device uncached to trigger a connection to the
* device, in case the device does not have notifiable characteristics.
*
* Also consider registering for DeviceConnectionChangeTrigger, in case a device does not have
* notifiable characteristics. But that may be overkill - what's the likelihood that a device
* won't have notifiable characteristics?
*
*/
}
/// <summary>
/// Callback for the refresh button which populates the devices list
/// </summary>
private async void refreshDevices_Click(object sender, RoutedEventArgs e)
{
pairedDevices.Items.Clear();
DeviceInformationCollection set = await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector());
Debug.WriteLine("BLE devices =====> " + set.Count);
messages.Text = "#BLE devices = " + set.Count;
foreach (var devInfo in set)
{
try
{
Debug.WriteLine("device = " + devInfo.Name + ", " + devInfo.Pairing);
BluetoothLEDevice ble = await BluetoothLEDevice.FromIdAsync(devInfo.Id);
if (ble != null)
{
pairedDevices.Items.Add(ble);
}
else
{
Debug.WriteLine("windows is confused; found a BLE device-info (" + devInfo.Name + ") but could not find it");
}
} catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
}
private static void ListDevices()
{
// Query for extra properties you want returned
string[] requestedProperties = { "System.Devices.Aep.DeviceAddress", "System.Devices.Aep.IsConnected" };
DeviceWatcher deviceWatcher =
DeviceInformation.CreateWatcher(
BluetoothLEDevice.GetDeviceSelector(),
//BluetoothLEDevice.GetDeviceSelectorFromPairingState(false),
requestedProperties,
DeviceInformationKind.AssociationEndpoint);
deviceWatcher.Added += (sender, args) =>
{
Console.WriteLine(args.Name + " " + args.Id);
var e = args.Properties.GetEnumerator();
while (e.MoveNext())
{
Console.WriteLine("[" + e.Current.Key + "]" + e.Current.Value);
}
};
deviceWatcher.Start();
Thread.Sleep(5 * 1000);
deviceWatcher.Stop();
}
private async Task <int> ScanDevice()
{
try
{
// bleDevices = await DeviceInformation.FindAllAsync(GattDeviceService.GetDeviceSelectorFromUuid(GattServiceUuids.GenericAccess));
bleDevices = await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector());
Debug.WriteLine("Found " + bleDevices.Count + " device(s)");
if (bleDevices.Count == 0)
{
await new MessageDialog("No BLE Devices found - make sure you've paired your device").ShowAsync();
await Windows.System.Launcher.LaunchUriAsync(new Uri("ms-settings-bluetooth:", UriKind.RelativeOrAbsolute));
}
deviceList.ItemsSource = bleDevices;
}
catch (Exception ex)
{
//if((uint)ex.HResult == 0x8007048F)
//{
// await new MessageDialog("Bluetooth is turned off!").ShowAsync();
//}
await new MessageDialog("Failed to find BLE devices: " + ex.Message).ShowAsync();
}
return(bleDevices.Count);
}
private async void refreshDevices_Click(object sender, RoutedEventArgs e)
{
pairedDevices.Items.Clear();
foreach (var info in await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector()))
{
pairedDevices.Items.Add(await BluetoothLEDevice.FromIdAsync(info.Id));
}
}
private async void retrieveDevices()
{
pairedDevicesListView.Items.Clear();
foreach (DeviceInformation di in await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector()))
{
BluetoothLEDevice bleDevice = await BluetoothLEDevice.FromIdAsync(di.Id);
pairedDevicesListView.Items.Add(bleDevice);
}
}
private async void discoverDevices()
{
foreach (DeviceInformation di in await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector()))
{
BluetoothLEDevice bleDevice = await BluetoothLEDevice.FromIdAsync(di.Id);
this.mapDevices.Add(bleDevice.Name, bleDevice);
}
Notification.UpdateTile(this.mapDevices.Count);
}
static async Task <IReadOnlyCollection <BluetoothDevice> > PlatformScanForDevices(RequestDeviceOptions options)
{
List <BluetoothDevice> devices = new List <BluetoothDevice>();
foreach (var device in await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector()))
{
devices.Add(await BluetoothLEDevice.FromIdAsync(device.Id));
}
return(devices.AsReadOnly());
}
private async static void AllConnectedDevicesAsync()
{
string filter = BluetoothLEDevice.GetDeviceSelector();
DeviceInformationCollection infos = await DeviceInformation.FindAllAsync(filter);
Debug.Log("Found " + infos.Count + " Devices");
foreach (DeviceInformation info in infos)
{
Debug.Log("Device Name: " + info.Name);
}
}
public async static Task <List <BluetoothLEDevice> > getLEDevices()
{
foreach (DeviceInformation di in await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector()))
{
BluetoothLEDevice bleDevice = await BluetoothLEDevice.FromIdAsync(di.Id);
// Add the dvice name into the list.
LEDevicesList.Add(bleDevice);
}
return(LEDevicesList);
}
static async Task <bool> MainAsync()
{
try
{
var deviceWatcher = DeviceInformation.CreateWatcher(BluetoothLEDevice.GetDeviceSelector());
deviceWatcher.Added += DeviceWatcher_Added;
//deviceWatcher.Updated += DeviceWatcher_Updated;
deviceWatcher.EnumerationCompleted += DeviceWatcher_EnumerationCompleted;
Trace.WriteLine("Enumerating devices");
deviceWatcher.Start();
waitHandle.Wait();
Trace.WriteLine("Done");
deviceWatcher.Stop();
if (deviceIds.Count == 0)
{
Console.WriteLine("Failed to find device with corret mac address");
return(false);
}
if (deviceIds.Count > 1)
{
Console.WriteLine("Found multiple devices with mac address");
return(false);
}
var device = await BluetoothLEDevice.FromIdAsync(deviceIds.First());
//Look up uuid
var characteristicHandle = int.Parse(parameters.CharacteristicHandle.Substring(2), NumberStyles.HexNumber);
var characteristicUuid = handleMappings[characteristicHandle];
var characteristic = device.GattServices.
SelectMany(s => s.GetCharacteristics(characteristicUuid)).
FirstOrDefault();
if (characteristic == null)
{
Console.WriteLine("Failed to find characteristic");
return(false);
}
if (parameters.Read)
{
return(await ReadCharacteristic(characteristic));
}
else
{
//Parse write value
var data = StringToByteArray(parameters.WriteValue);
return(await WriteCharacteristic(characteristic, data));
}
}
catch (Exception ex)
{
Console.WriteLine(ex.ToString());
return(false);
}
}
/// <summary>
/// Gets the bike device.
/// </summary>
/// <returns>A <see cref="Task"/> representing the asynchronous operation.</returns>
private static async Task <DeviceInformation> GetBluetoothDeviceInfo()
{
var devices = await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector());
foreach (var device in devices)
{
if (device.Name == "MCF-0000000000")
{
return(device);
}
}
return(null);
}
//Finds the devices already paired with the pc and add them to the listview
private async void PairedDevices()
{
DeviceInterfacesOutputLst.Items.Clear();
devices = await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector());
foreach (var device in devices)
{
DisplayDeviceInterface(device);
}
OutputList.Items.Insert(0, "Showing all paired BLE devices");
OutputList.Items.Insert(0, "Select you device and click ''Connect''");
}
/// <summary>
/// Finds the first paired bluetooth-device with the given name.
/// </summary>
/// <param name="deviceIndex">The device index of the device.</param>
/// <param name="name">The name of the device to be searched for.</param>
/// <returns>The <see cref="DeviceInformation"/> of the device, if found.</returns>
/// <exception cref="DeviceNotFoundException">Device with given name not found.</exception>
private async Task <DeviceInformation> FindDeviceAsync(int deviceIndex, string name)
{
DeviceInformationCollection devices =
await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector());
DeviceInformation device = devices.Where(information => information.Name == name).ElementAt(deviceIndex);
if (device == default)
{
throw new DeviceNotFoundException("Couldn't find device. Is it paired?");
}
return(device);
}
public async void SetupBLE()
{
txtProgress.Text = "Obtaining BTLE Info...";
var query = BluetoothLEDevice.GetDeviceSelector();
var deviceList = await DeviceInformation.FindAllAsync(query);
int count = deviceList.Count();
if (count > 0)
{
//Assumes default name of the Adafruit Bluefruit LE
var deviceInfo = deviceList.Where(x => x.Name == "Adafruit Bluefruit LE").FirstOrDefault();
if (deviceInfo != null)
{
var bleDevice = await BluetoothLEDevice.FromIdAsync(deviceInfo.Id);
var deviceServices = bleDevice.GattServices;
txtProgress.Text = "Retrieving service and GATT characteristics...";
var deviceSvc = deviceServices.Where(svc => svc.AttributeHandle == 0x003a).FirstOrDefault();
if (deviceSvc != null)
{
var characteristics = deviceSvc.GetAllCharacteristics();
_notifyCharacteristic = characteristics.Where(x => x.AttributeHandle == 0x003b).FirstOrDefault();
_writeCharacteristic = characteristics.Where(x => x.AttributeHandle == 0x003e).FirstOrDefault();
_readCharacteristic = characteristics.Where(x => x.AttributeHandle == 0x0040).FirstOrDefault();
_notifyCharacteristic.ValueChanged += NotifyCharacteristic_ValueChanged;
await _notifyCharacteristic.WriteClientCharacteristicConfigurationDescriptorAsync(GattClientCharacteristicConfigurationDescriptorValue.Notify);
txtProgress.Text = "Bluetooth LE Device service and characteristics initialized";
txtBTLEStatus.Text = "Initialized";
txtBTLEStatus.Foreground = new SolidColorBrush(Colors.Green);
btnBlue.IsEnabled = true;
btnGreen.IsEnabled = true;
btnYellow.IsEnabled = true;
btnOrange.IsEnabled = true;
btnPurple.IsEnabled = true;
btnRead.IsEnabled = true;
}
else
{
txtInfo.Text = "Custom GATT Service Not Found on the Bluefruit";
}
}
else
{
txtInfo.Text = "Adafruit Bluefruit LE not found, is it paired ??";
}
}
}
private async void ConnectDevice()
{
//This works only if your device is already paired!
foreach (DeviceInformation di in await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector()))
{
BluetoothLEDevice bleDevice = await BluetoothLEDevice.FromIdAsync(di.Id);
// Display BLE device name
var dialogBleDeviceName = new MessageDialog("BLE Device Name " + bleDevice.Name);
await dialogBleDeviceName.ShowAsync();
myDevice = bleDevice;
}
if (myDevice != null)
{
int servicesCount = 3;//Fill in the amount of services from your device!!!!!
int tryCount = 0;
bool connected = false;
while (!connected)//This is to make sure all services are found.
{
tryCount++;
serviceResult = await myDevice.GetGattServicesAsync();
if (serviceResult.Status == GattCommunicationStatus.Success && serviceResult.Services.Count >= servicesCount)
{
connected = true;
Debug.WriteLine("Connected in " + tryCount + " tries");
}
if (tryCount > 5)//make this larger if faild
{
Debug.WriteLine("Failed to connect to device ");
return;
}
}
if (connected)
{
for (int i = 0; i < serviceResult.Services.Count; i++)
{
var service = serviceResult.Services[i];
//This must be the service that contains the Gatt-Characteristic you want to read from or write to !!!!!!!.
string myServiceUuid = "0000ffe0-0000-1000-8000-00805f9b34fb";
if (service.Uuid.ToString() == myServiceUuid)
{
Get_Characteriisics(service);
break;
}
}
}
}
}
/// <summary>
/// Connect to the desired device.
/// </summary>
/// <param name="deviceName"></param>
public async void selectDevice(string deviceName)
{
foreach (DeviceInformation di in await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector()))
{
BluetoothLEDevice bleDevice = await BluetoothLEDevice.FromIdAsync(di.Id);
// Check if the name of the device founded is EMU Bridge.
if (bleDevice.Name == deviceName)
{
// Save detected device in the current device variable.
currentDevice = bleDevice;
break;
}
}
}
public async void selectDevice(string deviceName, string deviceAddress)
{
//This works only if your device is already paired!
foreach (DeviceInformation di in await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector()))
{
BluetoothLEDevice bleDevice = await BluetoothLEDevice.FromIdAsync(di.Id);
// Check if the name of the device founded is EMU Bridge.
if (bleDevice.Name == deviceName && bleDevice.BluetoothAddress.ToString() == deviceAddress)
{
// Save detected device in the current device variable.
CurrentSelectedDevice = bleDevice;
break;
}
}
}
/// <summary>
/// 按MAC地址查找系统中配对设备
/// </summary>
/// <param name="MAC"></param>
public async Task SelectDevice(string MAC)
{
CurrentDeviceMAC = MAC;
CurrentDevice = null;
DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector()).Completed = async(asyncInfo, asyncStatus) =>
{
if (asyncStatus == AsyncStatus.Completed)
{
DeviceInformationCollection deviceInformation = asyncInfo.GetResults();
foreach (DeviceInformation di in deviceInformation)
{
await Matching(di.Id);
}
}
};
}
private async void CheckPairedDevices()
{
Home.GetCurrent().AddLog("Checking paired devices...", AppLog.LogCategory.Debug);
BTDevices.Clear();
pairedDevices = await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector());
ObservableCollection <BTDevice> temp = new ObservableCollection <BTDevice>();
foreach (var device in pairedDevices)
{
BTDevices.Add(new BTDevice(device));
//Debug.WriteLine("Found device -" + device.Name + "(" + device.Id + ")");
Home.GetCurrent().AddLog($"Device found: {device.Name} [{device.Id}]", AppLog.LogCategory.Debug);
}
}
/// <summary>
/// Get already paired to device MI Band 2
/// </summary>
/// <returns>DeviceInformation with Band data. If device is not paired, returns null</returns>
public async Task <DeviceInformation> GetPairedBand()
{
var devices = await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector());
DeviceInformation deviceInfo = null;
foreach (var device in devices)
{
if (device.Pairing.IsPaired && device.Name == "MI Band 2")
{
deviceInfo = device;
}
}
return(deviceInfo);
}
public async Task FindConnectedLights()
{
lights.Clear();
var selector = BluetoothLEDevice.GetDeviceSelector();
var devices = await DeviceInformation.FindAllAsync(selector);
foreach (var d in devices)
{
if (config.Lights.ContainsKey(d.Name))
{
var light = await Light.FromBluetoothDevice(d);
lights.Add(d.Name, light);
}
}
}
private async void Scan()
{
var devices = await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector());
foreach (DeviceInformation device in devices)
{
sensors.Add(new MetawearSensor {
Name = device.Name, Address = device.Id
});
}
MetawearMacAddresses.ItemsSource = sensors;
if (sensors.Count() > 0)
{
MetawearMacAddresses.SelectedIndex = 0;
}
}
static int Main(string[] args)
{
if (args.Length != 1 || !args[0].Equals("lescan", StringComparison.OrdinalIgnoreCase))
{
Console.WriteLine("Only supports lescan option");
return(1);
}
var deviceWatcher = DeviceInformation.CreateWatcher(BluetoothLEDevice.GetDeviceSelector());
deviceWatcher.Added += DeviceWatcher_Added;
//deviceWatcher.Updated += DeviceWatcher_Updated;
deviceWatcher.EnumerationCompleted += DeviceWatcher_EnumerationCompleted;
Trace.WriteLine("Enumerating devices");
deviceWatcher.Start();
waitHandle.Wait();
Trace.WriteLine("Done");
deviceWatcher.Stop();
return(0);
}
/// <summary>
/// 按MAC地址查找系统中配对设备
/// </summary>
/// <param name="MAC"></param>
public async Task SelectDevice(string MAC)
{
CurrentDeviceMAC = MAC;
CurrentDevice = null;
DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector()).Completed = async(asyncInfo, asyncStatus) =>
{
if (asyncStatus == AsyncStatus.Completed)
{
DeviceInformationCollection deviceInformation = asyncInfo.GetResults();
foreach (DeviceInformation di in deviceInformation)
{
await Matching(di.Id);
}
if (CurrentDevice == null)
{
string msg = "没有发现设备";
ValueChanged(MsgType.NotifyTxt, msg);
StartBleDeviceWatcher();
}
}
};
}
public async void StartScanningForDevices(Guid serviceUuid)
{
if (isScanning == true)
{
return;
}
discoveredDevices = new List <IDevice>();
Debug.WriteLine("Adapter: Starting a scan for devices.");
//clear the list
discoveredDevices = new List <IDevice>();
isScanning = true;
foreach (DeviceInformation di in await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector()))
{
BluetoothLEDevice bleDevice = await BluetoothLEDevice.FromIdAsync(di.Id);
if (!DeviceExistsInDiscoveredList(bleDevice))
{
var d = new Device(bleDevice);
discoveredDevices.Add(d);
DeviceDiscovered(this, new DeviceDiscoveredEventArgs()
{
Device = d
});
}
if (isScanning == false)
{
break;
}
}
isScanning = false;
}
public async Task startBLEWatcher(int seconds)
{
// 1. Setup search timer
// 2. Loop through all paired devices and unpair them (BLAST YOU MS!)
// 3. Clear discovered device lists.
// 4. Start the search for unpaired devices.
bleSearchTimer.Interval = new TimeSpan(0, 0, 0, seconds);
var selector = BluetoothLEDevice.GetDeviceSelector();
var devices = await DeviceInformation.FindAllAsync(selector);
// Hacker fix. Each time the app closes the "User Session Token" for the BLE connection
// is lost. To re-enable it for our new session, pairing and unpairing must be done.
for (int i = 0; i < devices.Count; i++)
{
await devices[i].Pairing.UnpairAsync();
}
clearBleSearchResults();
bleSearchTimer.Start();
bleAdvertWatcher.Start();
}
private async Task <bool> retrieveBoard()
{
DeviceInformationCollection set = await DeviceInformation.FindAllAsync(BluetoothLEDevice.GetDeviceSelector());
foreach (var devInfo in set)
{
try
{
Debug.WriteLine("device = " + devInfo.Name + ", " + devInfo.Pairing);
if (devInfo.Name.Contains("MetaWear"))
{
BluetoothLEDevice selectedDevice = await BluetoothLEDevice.FromIdAsync(devInfo.Id);
if (selectedDevice != null)
{
var newBoard = MetaWearBoard.getMetaWearBoardInstance(selectedDevice);
var initResult = await newBoard.Initialize();
if (initResult == 0)
{
board = newBoard.cppBoard;
return(true);
}
}
else
{
Debug.WriteLine("windows is confused; found a BLE device-info (" + devInfo.Name + ") but could not find it");
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
return(false);
}
