Arduino and HD44780 LCD

By Carl | Published: September 20, 2008

I’ve just been playing with a new HD44780 4×20 LCD from ebay on the Arduino. As I’m still ‘playing’ I’ve tried to document a kind of breadboard interface for the Arduino to LCD. It should help me to remember how things are setup so I can use it a modular fashion later.

Code Snippet: Arduino and HD44780 LCD v1.0 Snippet

Images:

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4 Comments

  1. Kitemaker
    Posted February 12, 2009 at 9:38 am | Permalink

    Hi,

    I have the same hardware and I’m interested in giving your code snippet a go but that link appears to be dead- do you still have it? thanks

  2. Carl
    Posted February 12, 2009 at 2:34 pm | Permalink

    Hi Ken
    You can try, but it does appear WordPress has broken some of the code http://slog.carlheaton.co.uk/index.php/2008/09/arduino-and-hd44780-lcd-v10/

    Also try http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1144924220/8 (see code by Tomek).

    Ta,
    Carl

  3. No
    Posted October 1, 2009 at 1:01 am | Permalink

    Your breadboard pincount is wrong. You have 0,1,2, and then extras until you get to 10, which should actually be either 11, or something… And you have wasted jumpers on the board.

  4. Carl
    Posted October 1, 2009 at 1:21 am | Permalink

    Good job I’ve not needed to use this again or I’d of been slapping my head more than I am now. Thanks ‘No’.

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