using System;
using System.IO.Ports;

public class SerialPortTest
{
	public static void Main(string[] args)
	{
		SerialPortTest myTest = new SerialPortTest();
		while (true)
		{
			myTest.Test();
		}
	}

	private SerialPort mySerial;

	// Constructor
	public SerialPortTest()
	{
	}

	public void Test()
	{
		if (mySerial != null)
			if (mySerial.IsOpen)

				mySerial.Close();

		mySerial = new SerialPort("/dev/ttyS0", 9600);
		

		mySerial.Open();


		mySerial.ReadTimeout = 65;


		//SendData);
//#01#03#00#00#00#03#05#CB
//01 03 00 00 00 08 44 0C
		SendData(new byte[] {0x01, 0x03, 0x00, 0x00, 0x00, 0x03, 0x05, 0xCB });

		Console.WriteLine(ReadData()); // 
	}

	public string ReadData()
	{
		byte tmpByte;
		string rxString = "";
			
		tmpByte = (byte) mySerial.ReadByte();

		while (tmpByte != 255)
		{
			rxString += string.Format( "{0:X2}", tmpByte );
			rxString += ", ";
		
			tmpByte = (byte) mySerial.ReadByte();			
		}
	
		return rxString;
	}

	public bool SendData(byte[] byteData)
	{

		mySerial.Write(byteData, 0, byteData.Length);

		return true;		
	}
}