.ino file an alternative from a
If yes, then could someone mind explaining the structure of the
.ino file in
main.cpp and its relationship?
The Arduino uses the gcc compiler. That compiler wants a normal
main function of course. Arduino has put a layer on top of that with
main function for basic Arduino boards is in main.cpp (click on it to see it).
You see that
init is called, and
loop and a few other things.
To learn how to use
loop, you can try a few examples. They are in the menu of the Arduino IDE and they are also online.
The .ino files are all combined together and presented to the compiler as a single .cpp file to compile. The Arduino libraries are compiled from source as well, and everything is linked into a binary.
When you know how to use
loop, try the Blink Without Delay example. It can be used to run different software timers and do all kind of tasks and keep everything running smooth.