Untitled

Basics of C   with Arduino
int main()    {
    while (1)    {
        bool * out_pin = /* Whatever that memory address was for that pin */;
        *out_pin = 1;
        // Some sort of sleep function? (I only know of "windows.h"'s "Sleep" function)
        *out_pin = 0;
    }
    return 0; // Kind of unneeded, I suppose, but probably compiler errors otherwise.
}