Library

I have a program with LCD what doesn't work fine.
I've been told that there are several different types of LiquidChrystal libraries.
How and where I find the rightone?

Display is Qapass 1602A

I've been told that there are several different types of LiquidChrystal libraries.

The right one depends on what kind of LCD you have. Too bad you didn't tell us.

Have you used Google?
LCD library 1602 site:http://forum.arduino.cc

there is seldom the rightone, but often the rightmany :wink:

if it works it is one of the good, if it doesn't work it is bad, and the rest is ...

Evarist:
Display is Qapass 1602A

Based on HD44780.