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LiquidCrystal595 (LiquidCrystal595.h)

Arduino 1.x Library for driving an LCD using a 74HC595 shift register and only 3 pins, not the usual 6.
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Examples

  • 2019-01-16 raj.singh.kaiviti

    Hell ... is this post still open for discussion???

  • 2019-01-15 raj.singh.kaiviti

    Hello there. PLEASE let me know that if Is this post still active????
    Thanx.

  • 2017-08-05 Skisofreen

    Wow, your post from 2 years ago helped me solve this problem. Thanks!

  • 2016-07-13 codebender

    Ah now I get it! I think you what you're looking for is this example https://codebender.cc/examp...
    Check out line #31 and you'll see how you can initialize the library using 3 pins. I hope this helps a bit :)

  • 2016-07-13 Muhammed Atef Abdoullah

    I am using LCD
    It takes many pins ,, I need To use 3 pins only for LCD on arduino as to use other pins for other purposes ,, I bought a 74hc595
    and I made the right connections but the code doesnot work for 74hc595 I need a correct code ,, so i ask which code to copy from ur 3 codes ?! :D hope u understand :D

  • 2016-07-13 codebender

    Hello , I don't really get your question. Could you please be a bit more specific?

  • 2016-07-13 codebender

    Hi, that's right. However, you can't modify system libraries. If you want to hack their code, you will have to add them to your personal libraries.

  • 2016-06-09 Muhammed Atef Abdoullah

    Hello I want to use this to limit the lcd pins to only 3
    What code to copy from the 3 codes u put ?

  • 2016-01-20 skoy21

    Under line 294 and code "inline size_t LiquidCrystal595::write(uint8_t value) {
    send(value, HIGH);"

    needed to put "return 1;" (without quotes) in order to display properly in 20x4 LCD.
    It was displaying only the first character of anything writen in any row.

    otherwise works great

  • 2015-11-19 codebender

    This library and its examples were tested on 2016-06-11 with common Arduino boards. For more detailed information about the test results, please look at each example's comments.