wbphelps:
Is there some way to change pin assignments without editing the .h files? I tried doing a #define in my sketch but it doesn't seem to make any different. Also tried #undef and #define.Thanks...
Not really. The glcd library does not use any of the arduino core code to drive the lcd pins. It converts the defines in the header
files to direct AVR pin i/o at compile time. The advantage of this is speed. Direct i/o is MUCH faster than using the arduino core code.
( digitalRead(), digitalWrite() functions)
It does come with some drawbacks. One of them being that the all the pins must be defined when the library code
is built, which is built separately from the sketch so it is not possible to re-define the pins inside a sketch file or runtime
inside a sketch.
What is the driving need?
Are you looking for a way to preserve your pin changes when updating the library?
--- bill