There are at least two problems I see with this code: (1) The thread ReceiveData is run everytime the DataReceived event occurs. This might result in multple threads trying simultaneously to read from SerialPort.

Sep 03, 2010 I am trying to read Portal Data Collector through Serial. Budidaya Cacing Lumbricus Rubellus Pdf Merge. Visual Basic. Serial Port Using Visual Basic.NET and Windows. 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 microcontroller compilers have built-in functions to read from and write to. On a PC, serial ports appear as numbered COM ports that applications can read and write to. Aplikasi Facebook Untuk Hp Nokia X2. These days, most. For each adapter, Windows creates a USB virtual COM port that applications can access just like built-in serial ports. If you don't. (The full Visual Basic project is available from janxelson.com.) Combo boxes. Aug 24, 2012 - 7 min - Uploaded by Kelvin LeVisual Basic Serial COM Port Tutorial-Part 2 download the source code: sourceforge.

The correct implementation would start only one thread when the application starts (or some other initial event), and that thread should read data from SerialPort when the DataReceived event occurs. You might need to signal the read through a Semaphore or similar cross-thread signal from DataReceived event handler to the single thread. (2) Forms objects like TextBox should be accessed only from the thread on which they were created. The line txData.Text = ReadBuffer in ReceiveData will throw an error.

One way to work around this is to call txData.Invoke(). Sorry I am VB.net coder I don't understand C# Kindly can you provide me in consent of following code. Your code does not use threading.

I recommend using threading. See sample code below. Hinton Drivers Test on this page. I have tried to convert this to VB, but there may still be some problems.