LabVIEW
How to establish serial communication between Labview and Arduino Duemilanove board
Ok.
I am trying out this example code from Arduino to write to a Serial port.
I think its writing to my computer USB Serial port , Com 5.
I want to read the bytes/hex/dec/bin of the data coming out of the serial to Labview.
I just want to display it on Labview screen for now.
The problems I am having.
1. The Arduino board only have 1 USB cable plugged in, in order for me to upload the Arduino board to the I/O board, Arduino needs to have access to it.
2. When I try it on LAbview, it said that the Com is Valid, but Visa doesn't have access to it? (maybe because the Arduino board is still writing to the serial?
Can you point me to the right direction on this.
// ASCII Table
// by Nicholas Zambetti <http://www.zambetti.com>
void setup()
{
Serial.begin(9600);
// prints title with ending line break
Serial.println("ASCII Table ~ Character Map");
// wait for the long string to be sent
delay(100);
}
int number = 33; // first visible character '!' is #33
void loop()
{
Serial.print(number, BYTE); // prints value unaltered, first will be '!'
Serial.print(", dec: ");
Serial.print(number); // prints value as string in decimal (base 10)
// Serial.print(number, DEC); // this also works
Serial.print(", hex: ");
Serial.print(number, HEX); // prints value as string in hexadecimal (base 16)
Serial.print(", oct: ");
Serial.print(number, OCT); // prints value as string in octal (base 😎
Serial.print(", bin: ");
Serial.println(number, BIN); // prints value as string in binary (base 2)
// also prints ending line break
// if printed last visible character '~' #126 ...
if(number == 126) {
// loop forever
while(true) {
continue;
}
}
number++; // to the next character
delay(100); // allow some time for the Serial data to be sent
}
Okay, so you don't want to control the board with LabVIEW? You just want to monitor what a different program is writing? You won't be able to do that because the OS reserves the port for a single process and you get the error.
It would make more sense for you to cotnrol what is written with LabVIEW.
Well, the way I was thinking is...If I can get Labview to Read what the other board is reading..I can work around it to Write to the board.
But...
ULTIMATELY, I want to Write the String from Labview to the LCD Module to the Arduino board. That is my ultimate goal for this project.
That is the reason why I pasted the sample code at the beginning to display the string to the LCD.
my project is to take a webcam, scan the bar code. and display it on the LCD module. (that's what my teacher wants)
I already completed the webcam scanning of the bar code...
all I need is to learn how to display it through the USB serial port.
