Hi,
Have you developed your code in stages?
If so, then you must have written some code JUST to write to the LCD, to make sure your coding and connections are correct.
As @UKHeliBob has suggested, try one of the LCD library examples.
Tom.. 
Hi,
Have you developed your code in stages?
If so, then you must have written some code JUST to write to the LCD, to make sure your coding and connections are correct.
As @UKHeliBob has suggested, try one of the LCD library examples.
Tom..