private void Setup()
{
try
{
_client = new TcpClient(_server, _port);
_stream = _client.GetStream();
_reader = new BinaryReader(_stream);
_writer = new BinaryWriter(_stream);
int result = _reader.ReadByte();
if (result == MessageDictionary.Hello)
{
_writer.Write(MessageDictionary.Hello);
_writer.Write(MessageDictionary.ImUploadClient);
_writer.Write(_userId);
if (_reader.Read() == MessageDictionary.OK)
{
_isConnected = true;
ConnectionSuccess?.Invoke(this, EventArgs.Empty);
}
}
else
{
_isConnected = false;
ConnectionFailed?.Invoke(this, EventArgs.Empty);
}
}
catch (Exception ex)
{
ConnectionFailed?.Invoke(this, EventArgs.Empty);
}
}
/// <summary>
/// Connect to Arduino Leonardo Serial Port
/// </summary>
/// <returns></returns>
public async Task ConnectAsync()
{
//
if (!IsConnected)
{
// Get all com serial names
var portNames = SerialPort.GetPortNames().ToList();
SerialPort serialPort;
// Loop all com port names
foreach (var name in portNames.OrderByDescending(i => portNames.IndexOf(i)))
{
// Target new comport by comport name
serialPort = new SerialPort(name, portRange, Parity.None);
try
{
// Set the RTS to enable
serialPort.RtsEnable = true;
// Set the data resive event
serialPort.DataReceived += ResiceData_Event;
// Open the serialport
serialPort.Open();
// Send '1' to arduino to get a response for to check for is the rigth arduino devcice
SendData(ref serialPort, "1");
// Wait 2sek for response data
await Task.Delay(2000);
// If data has '1' the connection istablish
if (data.Equals("1"))
{
// Set the connection is connectet to true
IsConnected = true;
// Set the current serial port
currentSerialPort = serialPort;
// Start sender to to send stream of '1' if in the rigth state
StartSender();
// Call connection success event if et connectet
ConnectionSuccess?.Invoke(this, new EventArgs());
}
else
{
// Call connection fail event if et not connectet
ConnectionFail?.Invoke(this, new EventArgs());
}
}
finally
{
// If port not are connected to rigth Arduino close serila connection if is has one
if (currentSerialPort != null && currentSerialPort.IsOpen && !IsConnected)
{
currentSerialPort.Close();
}
}
// If its connected break out of the loop
if (IsConnected)
{
break;
}
}
}
}
