When you click "Upload," the Arduino IDE performs several background tasks:
: Every C++ program needs a main() function. In Arduino, this is hidden in the core files (e.g., main.cpp ). It typically looks like this:
: These files are linked with the Arduino Core (pre-compiled code for the specific board) to create a single .hex or .bin file.
: The avr-g++ (or equivalent for ARM/ESP32) compiler converts the C++ code into object files.
: Your .ino file is converted into a valid .cpp file by adding #include and generating function prototypes.
The Arduino "functions" are actually wrappers for .
Contrary to popular belief, Arduino does not have its own language. It uses with a specific set of libraries and a pre-processing step.
When you click "Upload," the Arduino IDE performs several background tasks:
: Every C++ program needs a main() function. In Arduino, this is hidden in the core files (e.g., main.cpp ). It typically looks like this:
: These files are linked with the Arduino Core (pre-compiled code for the specific board) to create a single .hex or .bin file.
: The avr-g++ (or equivalent for ARM/ESP32) compiler converts the C++ code into object files.
: Your .ino file is converted into a valid .cpp file by adding #include and generating function prototypes.
The Arduino "functions" are actually wrappers for .
Contrary to popular belief, Arduino does not have its own language. It uses with a specific set of libraries and a pre-processing step.
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