3-wire serial LCD for low pin-count microcontrollers

Discussion in 'Embedded Systems and Microcontrollers' started by rajbex, Oct 4, 2010.

  1. rajbex

    Thread Starter New Member

    Nov 2, 2009
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  2. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
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    Thats helpful.
     
  3. MMcLaren

    Well-Known Member

    Feb 14, 2010
    759
    116
    Very nice writeup Raj.

    Actually you can use your same code with a 74HC164 IC too.

    Challenge question: How can you drive a switch matrix with your circuit?

    Cheerful regards, Mike

    <added>

    Both the Predko 2-pin interface and the K8LH novelty 1-pin serial interface can be used to drive a switch matrix (below).
     
    Last edited: Oct 5, 2010
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