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I have made some 'research' and I read the CreateFile function (Windows) and I also find Serial Communication in Windows

I have a question: everywhere it says that I have to open my COM port.
...

Hi there,

I am realy new to c# programming and I have one question.

I want to send some commands to my serial port and I saw that is more easy to do this from a c# program that a c program. I...

Ok, so this is my code:



#include <stdio.h>
#include <stdlib.h>


int main()
{

Ok, I understand. I am going to post the code soon.

I can't just send the command from the C program?

This is not what I need :)

Right!

I use windows XP and 7 with visual studio 2010.

Hi there,

I want to send 3 commands via serial (USB) to an Arduino based device. The thing that i want to do is this: I have a program in C that reads a txt file. In that file I write 3 values: 1,...