Arduino error arduino first defined here, how to fix it?

Question

I am facing the error arduino first defined here while trying to compile my code, I think that the reason is that my class needs to have access to some variables that are defined in the header of my main skecht.ino. Simplifying I have something like this

main .ino

#include "myLibt.h"

setup(){
//setup something
}
loop(){
//loop something
}

myLibs.h looks like

#include <Arduino.h>

int x;
int y;
int z;

then I have my class that needs to access x, y and z from myLibs.h, if I do as below, including myLibs.h in the class, while compiling I get the error mentioned (arduino first defined here) for each of the variables of myLibs.h that I use. (Notice that the operations of my class are just examples)

#incldue "myLibs.h"
class A{

int a;
int b;

void m1();
  void m2(){

    x = a + x;
    z = b * z;
  }
}

Why do I have that error and how I can fix it?

Also posted at forum.arduino.cc/index.php?topic=475314. Instead of cross posting you should have taken a moment to compile your demonstration code. — per1234
– per1234, Commented May 5, 2017 at 16:41

ndarkness · Accepted Answer · 2017-05-12 09:27:57Z

2

The main issue consisted on having the variables x, y and z on my libs.h, moving them to the class A itself or creating a new extra class where class A have access to fixed the issue

answered May 12, 2017 at 9:27

ndarkness

1,0993 gold badges18 silver badges42 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

Arduino error arduino first defined here, how to fix it?

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related