Arduino Uno

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Liquid Crystal Display

I know this LCD's with an HD44780 interface very well, because long time ago I connected such a display to the LPT port of my firewall and implemented the protocol by myself in a Perl script  which was writing immediately to the hardware port. As a mather of fact, no upper level API or anyhing like that was available on the firewall.

Links

 LiquidCrystal library

 HD44780 Character LCD on Wikipedia

 Connecting an LCD to the Arduino