/// <summary>
/// Creates a new instance of <see cref="BLEConnection"/> from a <see cref="Device"/>.
/// </summary>
/// <param name="device">The Bluetooth LE device.</param>
/// <returns>The new connection.</returns>
public static async Task <BLEConnection> FromDeviceAsync(Device device)
{
if (device == null)
{
throw new ArgumentNullException(nameof(device));
}
var services = await device.GetGattServicesAsync(ServiceUuid);
var service = services.Single();
var characteristics = await service.GetCharacteristicsAsync(CharacteristicUuid);
var characteristic = characteristics.Single();
var connection = new BLEConnection(device, characteristic);
await characteristic.StartNotifyAsync();
return(connection);
}
private async void Watcher_Received(object sender, AdvertisementReceivedEventArgs e)
{
try {
if (pendingAddresses.Contains(e.Address))
{
return;
}
pendingAddresses.Add(e.Address);
var device = await Device.FromAddressAsync(e.Address);
var connection = await BLEConnection.FromDeviceAsync(device);
var hub = new Hub(connection);
HubConnected?.Invoke(this, hub);
}
catch (Exception ex) {
logger?.LogDebug(ex, "Unhandled exception in Watcher_Received");
}
pendingAddresses.Remove(e.Address);
}
internal Hub(BLEConnection connection)
{
this.connection = connection ?? throw new ArgumentNullException(nameof(connection));
}
