Serial communication between Unity 5 and Arduino

I am trying to send some triggers through serial to an Arduino on OS X. Uniduino is not an option for me, because I need to use arbitrary libaries on Arduino.

Is there a way to establish communication between the two?

 

I got it to work.
Thanks for the examples to LastTemplar and Ryanas.

Change the API Compatibility Level from ".NET 2.0 Subset" to ".NET 2.0" in Player Settings.



Example code compatible with OS X:

Code (CSharp):

1. using UnityEngine;
2. using System.Collections;
3. using System.IO;
4. using System.IO.Ports;
5. using System.Threading;
6. using System.Collections.Generic;
7.  
8. public class serialExample : MonoBehaviour
9. {
10.     public static SerialPort serialPort = new SerialPort("/dev/tty.usbmodem1411", 9600, Parity.None, 8, StopBits.One);
11.     public static string strIn;
12.  
13.     void Start()
14.     {
15.         GetPortNames();
16.         OpenConnection();
17.     }
18.  
19.     void Update()
20.     {
21.         serialPort.Write("1");
22.     }
23.  
24.     void GetPortNames()
25.     {
26.         int p = (int)System.Environment.OSVersion.Platform;
27.         List<string> serial_ports = new List<string>();
28.    
29.         if(p == 4 || p == 128 || p == 6)
30.         {
31.             string[] ttys = Directory.GetFiles("/dev/", "tty.*");
32.             foreach(string dev in ttys)
33.             {
34.                 if (dev.StartsWith("/dev/tty.*"))
35.                     serial_ports.Add(dev);
36.                 Debug.Log (System.String.Format(dev));
37.             }
38.         }
39.     }
40.  
41.     public void OpenConnection()
42.     {
43.         if(serialPort != null)
44.         {
45.             if(serialPort.IsOpen)
46.             {
47.                 serialPort.Close();
48.                 Debug.Log("Closing port, because it was already open!");
49.             }
50.             else
51.             {
52.                 serialPort.Open();
53.                 serialPort.ReadTimeout = 50;
54.                 Debug.Log("Port Opened!");
55.             }
56.          }
57.          else
58.          {
59.             if(serialPort.IsOpen)
60.             {
61.                 print("Port is already open");
62.             }
63.             else
64.             {
65.                 print("Port == null");
66.             }
67.         }
68.     }
69.        
70.     void OnApplicationQuit()
71.     {
72.         serialPort.Close();
73.         Debug.Log("Port closed!");
74.     }
75. }