////////////////////////////////////////////////////////////////////////////////////////////////////
//if port is empty program will auto select arduino port
public TGMTarduino(string portName = "", int baudRate = 9600)
{
if (portName == "")
{
ArduinoProperties arduinoProperties = AutoDetectArduinoPort();
portName = arduinoProperties.portName;
baudRate = arduinoProperties.baudRate;
if (portName == null)
{
return;
}
}
try
{
m_port = new SerialPort(portName, baudRate, Parity.None, 8, StopBits.One);
// Attach a method to be called when there
// is data waiting in the port's buffer
m_port.DataReceived += new SerialDataReceivedEventHandler(port_DataReceived);
// Begin communications
m_port.Open();
m_portName = portName;
m_threadCheckDisconnected = new Thread(new ThreadStart(CheckDisconnected));
m_threadCheckDisconnected.Start();
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////
private ArduinoProperties AutoDetectArduinoPort()
{
ManagementScope connectionScope = new ManagementScope();
SelectQuery serialQuery = new SelectQuery("SELECT * FROM Win32_SerialPort");
ManagementObjectSearcher searcher = new ManagementObjectSearcher(connectionScope, serialQuery);
ArduinoProperties result = new ArduinoProperties();
try
{
foreach (ManagementObject item in searcher.Get())
{
string desc = item["Description"].ToString();
string deviceId = item["DeviceID"].ToString();
string pnp = item["PNPDeviceID"].ToString();
if (desc.Contains("Arduino") ||
pnp.Contains("VID_10C4") ||// Vietduino
pnp.Contains("VID_2341")) //arduino)
{
result.portName = deviceId;
}
var config = item.GetRelated("Win32_SerialPortConfiguration").Cast <ManagementObject>().ToList().FirstOrDefault();
result.baudRate = (config != null)
? int.Parse(config["BaudRate"].ToString())
: int.Parse(item["MaxBaudRate"].ToString());
}
}
catch (ManagementException e)
{
throw new Exception("Can not get Arduino port, please check connection");
}
return(result);
}
