I have a program that has a bunch of #define's in the top of the sketch. Most of them are setting that get adjusted to change the way the program works. The rest are the pins and their uses. I would like to create a .h file to hold the header of the sketch, so that when I adjust the program, I only make changes to the .h file.
Do I use #include file.h at the top of the sketch and then input the header into a file name file.h?
And what is the difference between include and import?
