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Visual Studio Serial Port Tutorial

In today’s programming tutorial, I am going to describe some basics about how we can perform serial port communication from our C#.NET applications. Serial communications can be done via either direct to physical serial port connected to the computer or via a USB to serial converter interface. If the device do require a serial port and your. Serial Communication between PCs is always seen as the starting point. My first piece of serial comms code was a University assignment getting two PC’s, then three, then you get the idea talking on (what I now know to be) an RS422 with its pair of cables using Borland's Turbo C for DOS. Today we will make a software on Microsoft Visual Basic 2010 in which we will send data through the serial port in VB 2010. In this software we will send the data and also receive it. Simply follow all the given steps carefully and you can easily interface the Serial Port in VB 2010, its a fully working project with code so don’t do any mistake.

Serial port communication in Visual Studio C#. Ask Question. Be sure that the serial port is not alerady open by another program and you have selected the good COM.

  • Serial-port-vb.doc 1 2/1/2010 Serial Port Using Visual Basic.NET and Windows Introduction The serial (COM) port is one of the simplest ways to communicate between a PC and a microcontroller circuit. Most microcontrollers have hardware serial ports and most.
  • Mar 25, 2016  Hello folks, Visual Basic.net is an easy to learn language from Microsoft for the windows platform.One of the cool features of Visual Basic.net is the ability to whip up good looking gui components with a few lines of code. In this tutorial we are going to use Visual Basic.net to program your PC's Serial Port and communicate with an embedded microcontroller like MSP430 or 8051.

Serial ports provide an easy way to communicate between many types of hardware and your computer. They are relatively simple to use and are very common among peripherals and especially DIY projects. Many platforms such as Arduino have built in serial communication so they are really easy to set up and use. Many times you may want your project to communicate with your computer in order to have a cool interactive output, a neat sensor that passes data to your computer, or anything else you could possibly dream up. In this tutorial, I will walk you through how to interface to a serial port on the computer side of things, using Microsoft's . net framework. The code examples in this tutorial are in C#, but can be easily transferred to Visual Basic, or Visual C++. This tutorial assumes that you have a very basic understanding of object oriented programing, and whatever language you choose to program in.
Since we are mainly going to be using the System.IO.Ports.SerialPort class, HERE is a link to the full documentation by MSDN if you want to check out the rest of the class.
I also found a great article explaining how to fix several common bugs relating to serial ports. Check it out if you get stuck with any odd errors.
Feel free to post questions or feedback! I am always happy to hear constructive comments so I can make improvements.

Visual Studio Change Port

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This topic describes how to use My.Computer.Ports to receive strings from the computer's serial ports in Visual Basic.

To receive strings from the serial port

  1. Initialize the return string.

  2. Determine which serial port should provide the strings. This example assumes it is COM1.

  3. Use the My.Computer.Ports.OpenSerialPort method to obtain a reference to the port. For more information, see OpenSerialPort.

    The Try..Catch..Finally 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.

  4. Create a Do loop for reading lines of text until no more lines are available.

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  5. Use the ReadLine() method to read the next available line of text from the serial port.

  6. Use an If statement to determine if the ReadLine() method returns Nothing (which means no more text is available). If it does return Nothing, exit the Do loop.

  7. Add an Else block to the If statement to handle the case if the string is actually read. The block appends the string from the serial port to the return string.

  8. Return the string.

Example

Serial Port Visual Studio

This code example is also available as an IntelliSense code snippet. In the code snippet picker, it is located in Connectivity and Networking. For more information, see Code Snippets.

Compiling the Code

This example assumes the computer is using COM1.

Robust Programming

Visual Studio Serial Port Example

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 How to: Show Available Serial Ports.

Visual Studio Serial Port Tutorial Free

This example uses a Try..Catch..Finally block to make sure that the application closes the port and to catch any timeout exceptions. For more information, see Try..Catch..Finally Statement.

Visual Basic Serial Com Port Tutorial (visual Studio 2010)

See also