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Thread: Help -- I've lost a link to a Teensy article on the site and can't find it again

  1. #1
    Junior Member
    Join Date
    Jul 2021
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    7

    Help -- I've lost a link to a Teensy article on the site and can't find it again

    Silly issue here: There is a great how-to article on the pjrc site about using a 74HC4051 shift register to expand input ports to the Teensy. I accidentally close the tab and can't find it now to save my life! I copied the schematic that is shown in the article (see below) but I need more direction and the sketch samples. Anyone know how to find it? I've tried searching every way I know how
    Click image for larger version. 

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  2. #2
    Senior Member
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    Maybe try <here>

  3. #3
    Junior Member
    Join Date
    Jul 2021
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    Thank you! I'd forgotten that I'd found what I needed in a midi article! That's not my application, but it includes what I needed. You've saved what's left of my sanity.

  4. #4
    Just what I was interested in as well! Thanks.

  5. #5
    Senior Member
    Join Date
    Jul 2020
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    1,224
    The 4051 is an analog multiplexer, not a shift register, meaning it can route signals agnostic of whether they are
    inputs or outputs. No shifting happens.

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