public async Task Disconnect()
{
try
{
if (_uartService != null)
{
await _uartService.Stop();
}
if (_gattDeviceService != null)
{
_gattDeviceService.Dispose();
}
if (_bleDevice != null)
{
_bleDevice.Dispose();
}
}
catch (Exception ex)
{
Debug.WriteLine("BLE_Device::Disconnect EXCEPTION " + ex.ToString());
}
finally
{
_uartService = null;
_gattDeviceService = null;
_bleDevice = null;
_sbResponse.Clear();
}
}
public async Task <bool> Connect()
{
try
{
_bleDevice = await BluetoothLEDevice.FromBluetoothAddressAsync(BLEMacAddress);
if (_bleDevice != null)
{
GattDeviceServicesResult gattServicesResult = await _bleDevice.GetGattServicesAsync();
foreach (GattDeviceService service in gattServicesResult.Services)
{
if (service.Uuid.CompareTo(GattServiceUuids.UART) == 0)
{
_bleDevice.ConnectionStatusChanged += ConnectionStatusChanged;
_gattDeviceService = service;
_uartService = new UARTService();
_uartService.RXReceived += OnUARTServiceRXReceived;
bool result = await _uartService.Start(_gattDeviceService, true);
if (result)
{
return(true);
}
else
{
Debug.WriteLine("BLE_Device Connect UART Service start failure");
}
}
}
}
}
catch (Exception ex)
{
Debug.WriteLine("BLE_Device::Connect EXCEPTION " + ex.ToString());
}
await Disconnect();
return(false);
}
