Thank you both.
Not needing it is a big clue - thanks. So when programs have a
#include <avr/wdt.h>
the assumption is in this case that the library is there by default.
The IDE doesn't look like it recognizes it. For example if I look at a sketch that I used for a temperature controller I have
#include <OneWire.h>
The Orange seeming to indicate it recognizes the stuff I put in the Library. When I include the avr/wdt.h function, I get nothing (all black) which seems to me to indicate it doesn't "see" the stuff to include. Am I wrong about this? Indeed when I compile I get
sketch_may30ax3000_Working_up.ino:1:9: error: #include expects "FILENAME" or
So I thought perhaps I cobbled up the directory location of the original download of the Arduino IDE?
Would it be correct to locate the avr/wdt.h and plop the entire path name into the include statement then? Or are there assumptions I am making that are incorrect?
When I include include the wdt.h file -
and then enable the timer with
wdt_enable(WDTO_8s);
compiler comes back with an error
sketch.....: error: expected constructor, destructor, or type conversion before '(' token
indicating to me that it doesn't have the avr/wdt.h which of course the error told me above, but just saying...
??
Mike