i have recently obtained a 16 x 4 LCD display.http://uk.farnell.com/powertip/pc1604lrs-awa-b-q/lcd-module-16x4-led-b-l/dp/1671502
it has the standard 16 pins compatible with the HD44780. I have the display working to a point with the standard and 440 extended LCD libraries. The Row offset is incorrect and it appears to have an extended character set.
I am finding that it isnt totally compatible as it use a different LCD controller : ST7066http://www.datasheetcatalog.org/datasheets2/32/326069_1.pdf
does anyone have a modified library to work with this ST7066? (save me looking into it)