Hi! I was reading some topics and I found this: The main sketch is C++, however the IDE does do a certain amount of pre-processing (in particular, generating function prototypes for you) before submitting the code to the main C++ compiler. Could be found here . Someone know how this "pre-process…

How Arduino IDE pre-processing work?

leandrogs April 1, 2014, 2:01pm 8

Thank you all for answer me about preprocessor and sorry about my late response.

So, now that i understand what preprocessor is, what is running inside the ATMEL?

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