I am making a multi-file arduino project, but the compiler can't recognize a function. I am using the arduino-cli version 0.10.0
This is the error I received
undefined reference to pin_init() collect2.exe: error: ld returned 1 exit status Error during build: exit status 1
This is the command:
arduino-cli compile -b arduino:avr:uno C:\Users\Cioccarelli\Desktop\transmitterCopy\main
main.ino:
#include "C:\Users\Cioccarelli\Desktop\transmitter\automation\automation.h"
void setup() {
pin_init();
}
void loop() {}
automation.h:
#pragma once
// This is where the components input pins are stored, they are put here by the add_pin function
byte pinSetup[0];
byte pinSetupSize = 0;
// This function is called in the setup() and it initializes every pin listed in pinSetup[] as input
void pin_init();
automation.cpp:
#include "C:\Users\Cioccarelli\Desktop\transmitter\automation\automation.h"
extern pinSetup;
extern pinSetupSize;
void pin_init() {
for (int i = 0; i < pinSetupSize; i++)
pinMode(i, INPUT);
}
I think this issue might have to do with the fact that I don't completely understand file inclusion, but I haven't found anything useful in my research
Update: today I rebuilt the project with different names and I cut everything which wasn't related to the problem, in hope to identify it.
new main:
#include "C:\Arduino\transmitter\nightmare\nightmare.h"
void setup() {
pin_init();
}
void loop() {}
new automation.h (nightmare.h):
#pragma once
// This function is called in the setup() and it initializes every pin listed
//in pinSetup[] as input
void pin_init();
new automation.cpp (nightmare.cpp):
#include "C:\Arduino\transmitter\nightmare\nightmare.h"
void pin_init() {}
new file structure:
I also made a copy and made some changes so it could become a C++ file (substituting the setup() with main() and replace every "byte" type with "int")
I then put it in Visual studio, it compiled perfectly. The arduino IDE gives the same error
