I'm taking a guess that E from the LCD12864 Library documentation corresponds to EN and R/W corresponds to RW ...
but I don't know which pin corresponds to CSEL1.
i have the same lcd. the csel1 is actually ur PSB. and u may connect it to analog pin 0. mine works like that
i usually find most replies useless as people talk about something else in the reply
Can someone explain to me how to set the contrast for this LCD with a 10K Potentiomer?
Don't worry guys I worked it out