Hi 
I'm new in this forum. I created a program with Arduino Mega, which returns 12 values related to the analog pins, ranging from 0000 to 1023, annexed to the constant "SCC200010001 " (on the serial monitor I see the same constant string repeated 12 times with only the last four values that change). I want to read, with the VISA Read, only the last four values of each string and insert each of these into a subVI, but when I run the program, the computer shuts down.
Someone have any ideas? This can be a problem of bytes count related to the VISA Read function? You must configure the Arduino before use with LabVIEW?
I do not know VISA Read, what the constant means or what a subVI is?
Which computer shuts down?
The PC of the Arduino MEGA
Someone have any ideas?
Can you post you code? That helps to understand the problem.
Use CTRL-T to auto format the code before copying and please use code tags.
please also update the title of your post to reflect the problem.
Hi, sorry I omitted that I'm using Labview for the acquisition data, so VISA Read is the function that returns the read buffer from Arduino reading a certain number of bytes. Instead the subvi is a subroutine in labview language. When I connect Arduino to the pc and run the program the pc shuts down.
This is the Arduino code:
#define sensor0 0
#define sensor1 1
#define sensor2 2
#define sensor3 3
#define sensor4 4
#define sensor5 5
#define sensor6 6
#define sensor7 7
#define sensor8 8
#define sensor9 9
#define sensor10 10
#define sensor11 11
//Seleziona il PIN di input per il trimmer
int value0 = 0;
int value1 = 0;
int value2 = 0;
int value3 = 0;
int value4 = 0;
int value5 = 0;
int value6 = 0;
int value7 = 0;
int value8 = 0;
int value9 = 0;
int value10 = 0;
int value11 = 0;
void setup() {
Serial.begin(9600);
}//apre la porta seriale
void aggiungi_zero (int x)
{
if (x<=9){
Serial.print ("000");
Serial.println (x);
}
else if(x<=99){
Serial.print("00");
Serial.println (x);
}
else if(x<=999){
Serial.print("0");
Serial.println (x);
}
else{
Serial.println (x);
}
}
void loop() {
value0 = analogRead(sensor0);
value1 = analogRead(sensor1);
value2 = analogRead(sensor2);
value3 = analogRead(sensor3);
value4 = analogRead(sensor4);
value5 = analogRead(sensor5);
value6 = analogRead(sensor6);
value7 = analogRead(sensor7);
value8 = analogRead(sensor8);
value9 = analogRead(sensor9);
value10 = analogRead(sensor10);
value11 = analogRead(sensor11);
Serial.print("SCC200010001");
aggiungi_zero (value0);
delay(10);
Serial.print("SCC200010002");
aggiungi_zero (value1);
delay(10);
Serial.print("SCC200010003");
aggiungi_zero (value2);
delay(10);
Serial.print("SCC200010004");
aggiungi_zero (value3);
delay(10);
Serial.print("SCC200010005");
aggiungi_zero (value4);
delay(10);
Serial.print("SCC200010006");
aggiungi_zero (value5);
delay(10);
Serial.print("SCC200010007");
aggiungi_zero (value6);
delay(10);
Serial.print("SCC200010008");
aggiungi_zero (value7);
delay(10);
Serial.print("SCC200010009");
aggiungi_zero (value8);
delay(10);
Serial.print("SCC200010010");
aggiungi_zero (value9);
delay(10);
Serial.print("SCC200010011");
aggiungi_zero (value10);
delay(10);
Serial.print("SCC200010012");
aggiungi_zero (value11);
delay(10);
}//Stampa il valore sulla porta seriale
This is the labview code:
Fede2712:
I want to read, with the VISA Read, only the last four values of each string
It must be old age, but I could never have guessed that from the title of your Thread.
...R
Moderator: added code tags
With respect to your code, please investigate the usage of array's in C++ and loops.
Would simplify your code substantially.
See tutorial section