If I remember right the 8 pin hook-up is for shifting data in/out. Have not done this myself and I have not seen on for some time.
<img src="http://www.picbasic.co.uk/forum/attachment.php?attachmentid=1916&stc=1&d=118642546 2">
Go here http://www.melabs.com/slcd/index.htm and get the Hitachi 44780 LCD Controller Datasheet. It talks of both ways. You might be able to figure it out from there.
Or... go the easy way and http://www.seetron.com/bpk000_1.htm Then one wire is all that is needed. If it will work for your display.
Bookmarks