How to send data Serially through COM port

[romcab]

Hi guys,

Just want to ask how can I send data serially? I have here a sample code but I use sockets and tcpclient class but I'm wondering how to do it using serial cable.Any idea?

Private Sub SendData(ByVal IpAdd As String, ByVal sData As String)
 
        Dim myIpAdd As System.Net.IPAddress
        Dim myPort As Integer = 4003
 
        'Convert data String to Byte()
        Dim pBytes() As Byte = Encoding.Default.GetBytes(sData)
        'Debug:
        'Dim pBytes() As Byte = Encoding.ASCII.GetBytes(sData)
 
        'create a socket
        Dim isocket As Socket
        isocket = New Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp)
 
        'convert string ip to IPAddress 
        myIpAdd = IPAddress.Parse(IpAdd)
 
        'Debug:
        'Dim temp As String = myIpAdd.ToString()
        'Dim ret = IPAddress.TryParse(IpAdd, temp)
 
        'connect to remote host
        Try
            isocket.Connect(myIpAdd, myPort)
            If isocket.Connected() Then
 
                'Send Data
                isocket.Send(pBytes)
 
                'Debug
                'MsgBox("Sent... ")
 
                'close connection
                isocket.Close()
 
            End If
 
        Catch se As SocketException
            MsgBox("Socket Exception")
 
        Catch ex As Exception
            MsgBox("UnExpected exception")
 
        End Try
 
    End Sub

Thanks

[Shashi Sadasivan]

Hi,
I have never tried this, BUt got some good looking links
link1 link2

hope it helps

[romcab]

Hi,
I have never tried this, BUt got some good looking links
link1 link2

hope it helps

thanks for this link...Anyway, did you experience sending data using sockets and tthe data is distorted? I just saw it today when I delete MsgBox which inform me that data is sent/failed. I think I need to add delay before sending the next one? Do you know the how to add delay or sleep in .net?

[Shashi Sadasivan]

thanks for this link...Anyway, did you experience sending data using sockets and tthe data is distorted? I just saw it today when I delete MsgBox which inform me that data is sent/failed. I think I need to add delay before sending the next one? Do you know the how to add delay or sleep in .net?

Thread.Sleep(time) will put the current operation to sleep