using System.IO.Ports;

namespace SerialPortLibrary
{
    public class PortConn
    {
        private string _value;
        private SerialPort _portObj;

        public PortConn(string portNum)
        {
            _portObj = new SerialPort(portNum, 9600, Parity.None, 8, StopBits.One);
            _portObj.DtrEnable = true;
            _portObj.DataReceived += new SerialDataReceivedEventHandler(portObj_DataReceived);
        }

        public void PortOpen()
        {
            if (_portObj.IsOpen)
            {
                _portObj.Close();
            }
            else
            {
                _portObj.Open();
            }
        }

        public void PortClose()
        {
            _portObj.Close();
        }

        public void SendCommand(string commandString)
        {
            _portObj.WriteLine(commandString);
        }

        public void portObj_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            _value = _portObj.ReadLine();
        }

        public string GetValue
        {
            get { return _value; }
        }
    }
}