Hello,
I´m having problem with get access to my Serial Ports using C#. I’m using Visual Studio 2005 and Vista.
I’ve checked that the Serial Port is “COM1”, so this shouldn’t be the problem.
Error message: “System.UnauthorizedAccessException ”.
I’ve googled this and it seems to be some security problems, maybe with Vista.
The Code:
(using System.IO.Ports;)
public partial class Arduino : System.Web.UI.Page
{
SerialPort sp = new SerialPort("COM1", 9600, Parity.None, 8, StopBits.One);
protected void Page_Load(object sender, EventArgs e)
}
protected void Button1_Click(object sender, EventArgs e)
sp.Open();
TextBox1.Text = "" + sp.ReadByte();
sp.Close();
Anyone have experience from this?