/// <summary>
/// Connects to a remote device over firmata
/// </summary>
/// <param name="selectedConnection">Connection to connect to </param>
/// <returns>true if connection succeeded.</returns>
public async Task Connect(Connection selectedConnection)
{
if (this.CurrentConnection != null)
{
App.SerialStream.end();
this.Disconnect();
await Task.Delay(1000);
}
try
{
await this.dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
App.CurrentAppSettings.CurrentConnectionState = (int)ConnectionState.Connecting;
});
this.CurrentConnection = selectedConnection;
switch (this.CurrentConnection.ConnectionType)
{
case ConnectionType.BluetoothSerial:
App.SerialStream = new BluetoothSerial(selectedConnection.Source);
break;
case ConnectionType.UsbSerial:
App.SerialStream = new UsbSerial(selectedConnection.Source);
break;
}
App.Firmata = new UwpFirmata();
App.Firmata.FirmataConnectionFailed += this.OnConnectionFailed;
App.Firmata.FirmataConnectionLost += this.OnConnectionLost;
App.Firmata.FirmataConnectionReady += this.OnConnectionEstablished;
App.SerialStream.begin(115200, SerialConfig.SERIAL_8N1);
App.Firmata.begin(App.SerialStream);
App.Firmata.startListening();
App.Arduino = new RemoteDevice(App.Firmata);
}
catch (Exception e)
{
await this.dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
App.CurrentAppSettings.CurrentConnectionState = (int)ConnectionState.CouldNotConnect;
Debug.WriteLine("{0} hit while connecting", e.StackTrace);
});
}
}
/// <summary>
/// Disconnects the current connection and cleans up any related objects
/// </summary>
public async void Disconnect()
{
if (this.CurrentConnection != null)
{
await this.dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
App.CurrentAppSettings.CurrentConnectionState = (int)ConnectionState.Disconnecting;
});
if (App.SerialStream != null)
{
App.SerialStream.end();
}
App.SerialStream = null;
App.Firmata = null;
App.Arduino = null;
this.CurrentConnection = null;
await this.dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
() =>
{
App.CurrentAppSettings.CurrentConnectionState = (int)ConnectionState.NotConnected;
});
}
}