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using UnityEngine;
using System.Collections;
using System.IO.Ports;
using System.Threading;
public class SerialHandler : MonoBehaviour
{
public delegate void SerialDataReceivedEventHandler(string message);
public event SerialDataReceivedEventHandler OnDataReceived;
public string portName = "/dev/tty.usbmodem1421";
public int baudRate = 9600;
private SerialPort serialPort_;
private Thread thread_;
private bool isRunning_ = false;
private string message_;
private bool isNewMessageReceived_ = false;
void Awake()
{
Open();
}
void Update()
{
if (isNewMessageReceived_) {
OnDataReceived(message_);
}
}
void OnDestroy()
{
Close();
}
private void Open()
{
serialPort_ = new SerialPort(portName, baudRate, Parity.None, 8, StopBits.One);
serialPort_.Open();
isRunning_ = true;
thread_ = new Thread(Read);
thread_.Start();
}
private void Close()
{
isRunning_ = false;
if (thread_ != null && thread_.IsAlive) {
thread_.Join();
}
if (serialPort_ != null && serialPort_.IsOpen) {
serialPort_.Close();
serialPort_.Dispose();
}
}
private void Read()
{
while (isRunning_ && serialPort_ != null && serialPort_.IsOpen) {
try {
// if (serialPort_.BytesToRead > 0) {
message_ = serialPort_.ReadLine();
isNewMessageReceived_ = true;
// }
} catch (System.Exception e) {
Debug.LogWarning(e.Message);
}
}
}
public void Write(string message)
{
try {
serialPort_.Write(message);
} catch (System.Exception e) {
Debug.LogWarning(e.Message);
}
}
}
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