Using .NET’s SerialPort Class
dim portData as String
If (Not (myComPort Is Nothing)) Then
If (Not myComPort.IsOpen) Then
myComPort.Open()
End If
End If
If myComPort.IsOpen Then
myComPort.ReadLine(portData)
myComPort.WriteLine(portData)
End If
String portData;
if (!(ComPort.selectedPort == null))
{
if (!myComPort.IsOpen)
{
myComPort.Open();
}
}
if (ComPort.selectedPort.IsOpen )
{
portData = myComPort.ReadLine();
myComPort.WriteLine(portData ) ;
}
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Many applications send and receive data stored in byte arrays and read data into
byte arrays or byte variables.