Hello everyone, I have read the previous posts on the topic, but found a whole bunch of dead links.
I am trying to get a 20x4 LCD screen to work properly (it's a New Haven module, blue with white letters).
I previously used the LCD4bit library with no problem on a 16x2, but i am wandering if anyone has a tested and working system to get a 4 line 20 char LCD screen talking with Arduino.
What's your recipe? Which library is better and is there a simple way to modify the existing library to accomodate 4 lines?
I'm experiencing the usual problems, line arrangement (1,3,2,4) and missing lines and some occasional LCD freak outs.
Any suggestion would be incredibly appreciated!! Thanks.