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Hi all,
Just passing by to say that I've finished my project.
Thank you very much for your help :)

Hi GremlinSA, I have fixed the problem which was slowing my system down - I was reading one character at a time, invoking the GUI, coming back, reading another character, invoking the GUI thread,...

Hi GremlinSA, thanks to your explanations and article I finally understood the concept of double buffering (or at least I think so :)).
However I the program is still running slow :/
I have tried...

Hi GremlinSA, I have done all the changes you suggested and the program is still slow.
#1: Done - (Set DoubleBuffered = True in the System.Windows.Forms.Form properties)
#2: I am now using...

dglienna: Thanks for your reply! I figured out what was wrong.
I have done some progress since my last post but now I have another problem.
The Visual Basic program is not fast enough to display...

GremlinSA: Sorry if I offended you. That is a great article and I just didn't understand it all :)

Anyway I have found another way of drawing my scan line (step motor angle (and by the way there's...

Cimperiali: No, I can open the COM port, read the data, and display it in the Textbox.
My question is: How do I plot the real-time data coming through?

GremlinSA: Thanks for your reply, however I believe the author of that article is hard-coding the coordinates of the drawings. So, how can I plot real-time data from the COM port?
Thanks again!

Hi all, a beginner here :)
I'm working on an ultrasonic sonar and I would like to use the computer to display a standard green radar system detecting the objects.
I'm using a micro controller with...

@VladimirF:
That's exactly what I'm looking for.
My step motor does 250 steps per full revolution.
I just want a simple one to start with, I can get creative later on once it works.
So how do I...

Hi all! I'm working on an ultrasonic sonar and I would like to use a computer to display a standard green radar system detecting the objects.
I'm using a micro controller with the software written...