using UnityEngine;
using System.IO.Ports;

public class SerialIO : MonoBehaviour {
    SerialPort Ports = new SerialPort("COM3",9600, Parity.None, 8, StopBits.One);
  //  private int data1,data2;
	// Use this for initialization
	void Start () {
        serialOpen();
	}
	
	// Update is called once per frame
	void Update () {
        Debug.Log(serialRead('A'));
	}

    public void serialOpen() {
        if (Ports.IsOpen)
        {
            Ports.Close();
        }
        else {
            Ports.Open();
            Ports.ReadTimeout = 1000;
        }
    }

    public int serialRead(char str) {
        switch (str) {
            case 'A':
                int data1, data2;
                 data1 = Ports.ReadByte();
                 data2 = Ports.ReadByte();
                 data1 = data1 << 2;
                 data1 = data1 | data2;
                 Debug.Log(data1);
                 return data1;
            default:
                return 0;
        }
    }
}