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Arduino

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  • So if I understand you right, this could be done in a header file? I never saw them in the examples I used. But that would make sense... Commented May 11, 2019 at 8:08
  • I think Arduino IDE is doing some "magic" behind the scenes to be able to compile without declaring the functions above the function call. I also updated my examples, to be able to copy and paste them into the corresponding IDEs. Commented May 11, 2019 at 8:21
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    void myfunction() should not return an int Commented May 11, 2019 at 9:05
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    @Jan: Indeed. The Arduino IDE edits your .ino file, adds those function prototypes at the beginning of the file, saves the result as a .cpp file, and calls a C++ compiler (g++) to compile that .cpp. Commented May 11, 2019 at 9:29
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    @Jan, why did you accept an answer which doesn't answer your question? Commented May 11, 2019 at 13:03