recently taken up the challenge of getting an LCD output working as I found a 14 pin LCD display with a Hitachi HD44780 driver. The down side was there was no data sheet with the screen so I've been using standards found on google.
So far, when i fire it up I can only get 1 row out of the two to light up with solid squares. Does this mean the screen is faulty or have I miss connected one of the leads?
the second mystery comes when I use the liquid crystal tutorial, the squares are wiped off the screen and I am no longer able to see ANYTHING ( the print didnt work..)
any suggestions are much appreciated..