internal async Task <bool> Init()
{
bool success = false;
bleDevice = await Windows.Devices.Bluetooth.BluetoothLEDevice.FromIdAsync(deviceId);
services = bleDevice.GattServices;
int ccc = services.Count;
for (int i = 0; i < ccc; i++)
{
Windows.Devices.Bluetooth.GenericAttributeProfile.GattDeviceService service = services[i];
string s = service.Uuid.ToString();
if (s == "4f63756c-7573-2054-6872-65656d6f7465")
{
myService = service;
//var CharResult = myService.GetAllCharacteristics();
//Console.WriteLine("elo");
break;
}
}
if (myService != null)
{
try
{
allCharacteristics = myService.GetAllCharacteristics();
Guid notifyGuid = new Guid("{c8c51726-81bc-483b-a052-f7a14ea3d281}");
Guid writeGuid = new Guid("{c8c51726-81bc-483b-a052-f7a14ea3d282}");
foreach (Windows.Devices.Bluetooth.GenericAttributeProfile.GattCharacteristic c in allCharacteristics)
{
if (
c.CharacteristicProperties.HasFlag(Windows.Devices.Bluetooth.GenericAttributeProfile.GattCharacteristicProperties.Notify) &&
c.Uuid == notifyGuid)
{
notifyCharacteristic = c;
}
else if (
c.CharacteristicProperties.HasFlag(Windows.Devices.Bluetooth.GenericAttributeProfile.GattCharacteristicProperties.Write) &&
c.Uuid == writeGuid)
{
writeCharacteristic = c;
}
if (notifyCharacteristic != null && writeCharacteristic != null)
{
break;
}
}
success = notifyCharacteristic != null && writeCharacteristic != null;
}
catch
{
}
}
return(success);
}
private async void Get_Characteriisics()
{
Guid notifyGuid = new Guid("{c8c51726-81bc-483b-a052-f7a14ea3d281}");
Guid writeGuid = new Guid("{c8c51726-81bc-483b-a052-f7a14ea3d282}");
bool success = true;
var charResult = myService.GetAllCharacteristics();
//if (CharResult.Status == GattCommunicationStatus.Success)
{
foreach (Windows.Devices.Bluetooth.GenericAttributeProfile.GattCharacteristic c in charResult)
{
if (
c.CharacteristicProperties.HasFlag(Windows.Devices.Bluetooth.GenericAttributeProfile.GattCharacteristicProperties.Notify) &&
c.Uuid == notifyGuid)
{
notifyCharacteristic = c;
}
else if (
c.CharacteristicProperties.HasFlag(Windows.Devices.Bluetooth.GenericAttributeProfile.GattCharacteristicProperties.Write) &&
c.Uuid == writeGuid)
{
writeCharacteristic = c;
}
if (notifyCharacteristic != null && writeCharacteristic != null)
{
break;
}
}
success = notifyCharacteristic != null && writeCharacteristic != null;
if (success)
{
try
{
// Write the ClientCharacteristicConfigurationDescriptor in order for server to send notifications.
var result = await notifyCharacteristic.WriteClientCharacteristicConfigurationDescriptorAsync(
Windows.Devices.Bluetooth.GenericAttributeProfile.GattClientCharacteristicConfigurationDescriptorValue.Notify);
if (result == Windows.Devices.Bluetooth.GenericAttributeProfile.GattCommunicationStatus.Success)
{
// var dialogNotifications = new MessageDialog("Successfully registered for notifications");
// await dialogNotifications.ShowAsync();
notifyCharacteristic.ValueChanged += SelectedCharacteristic_ValueChanged;
success = true;
}
if (success)
{
success = await InitialKickEvents();
}
}
catch (Exception ex)
{
// This usually happens when not all characteristics are found
// or selected characteristic has no Notify.
//var dialogNotifications = new MessageDialog(ex.Message);
//await dialogNotifications.ShowAsync();
//await Task.Delay(100);
//Get_Characteriisics(myService); //try again
//!!! Add a max try counter to prevent infinite loop!!!!!!!
}
}
}
}