How to: Send Strings to Serial Ports in Visual Basic • • 2 minutes to read • Contributors • • • • • • In this article This topic describes how to use My.Computer.Ports to send strings to the computer's serial ports in Visual Basic. Example This example sends a string to the COM1 serial port. You may need to use a different serial port on your computer. Use the My.Computer. Stargazer Game Download. Ports. Sample Excel Data Files. OpenSerialPort method to obtain a reference to the port.

Now that we have created our serial port object and opened the port, we now want to read from the serial port. Here are the basic read functions: (there are several. Describes how to control Agilent instruments through the serial port in various programming languages under DOS. A basic set of software functions. Receive Strings From Serial Ports in Visual Basic. This example assumes it is COM1. Port method to obtain a reference to. I’ll show how to use Visual Basic.NET to access serial ports. Serial Ports and COM Ports A serial port is a computer interface that. Different program.

For more information, see. The Using block allows the application to close the serial port even if it generates an exception. All code that manipulates the serial port should appear within this block or within a Try.Catch.Finally block.

The method sends the data to the serial port. Sub SendSerialData(ByVal data As String) ' Send strings to a serial port. Using com1 As IO.Ports.SerialPort = My.Computer.Ports.OpenSerialPort('COM1') com1.WriteLine(data) End Using End Sub Compiling the Code • This example assumes the computer is using COM1. Robust Programming This example assumes the computer is using COM1; for more flexibility, the code should allow the user to select the desired serial port from a list of available ports. For more information, see.

This example uses a Using block to make sure that the application closes the port even if it throws an exception. For more information, see.