I am new to Arduino and using Arduino UNO.
I was working with few example codes given by Arduino and i come to know few functions like digitalWrite, analogWrite, pinMode etc.
I want to know where i can find the source code for this kind of functions.
There is one more thing i am experienced in C language and worked on many controllers and processors, for those i was using main() as a function.
But in Arduino, i experienced new approach which is great i mean something new, but i want to know how actually it is working.
There are no header files define in the blinky example. I want to know how the things are working around Arduino IDE.
The Arduino IDE goes to great lengths trying to hide interesting (but apparently scary) details from fragile newbies. I find it endlessly annoying. All of the source code can be found with diligent searching. A much better method is to use the Sloeber / Eclipse IDE. This allows you to follow function calls to their source code with a simple right-click.
BTW, there is a hidden 'main()' function. It looks like this:
#include <Arduino.h>
// Declared weak in Arduino.h to allow user redefinitions.
int atexit(void (* /*func*/ )()) { return 0; }
// Weak empty variant initialization function.
// May be redefined by variant files.
void initVariant() __attribute__((weak));
void initVariant() { }
void setupUSB() __attribute__((weak));
void setupUSB() { }
int main(void)
{
init();
initVariant();
#if defined(USBCON)
USBDevice.attach();
#endif
setup();
for (;;) {
loop();
if (serialEventRun) serialEventRun();
}
return 0;
}
I didn't find any path you mentioned in my windows. Instead, there is one folder Documents\Arduino
but there is no codes or anything, some json files are there only