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Thread: Repurposing the 1/8" jack on the audio shield to be a Line In jack

  1. #1
    Junior Member
    Join Date
    Feb 2021
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    5

    Repurposing the 1/8" jack on the audio shield to be a Line In jack

    I'd like to repurpose the 1/8" jack on the audio shield to be a Line In jack.

    Should I be able to simply "cross-wire" the left/right/ground pads adjacent to the headphone jack to the left/right/ground pads on the Line In header?

    Would this be a bad idea?

    Is there a "cleaner" way to do this?

    I wish to minimise line noise. I am okay with cutting some traces if I need to to get the best result.

  2. #2
    Senior Member+ Frank B's Avatar
    Join Date
    Apr 2014
    Location
    Germany
    Posts
    8,230
    The way is to simply add an extra jack. Whatever you do - never connect the jacks GND to the normal GND. If you really want to go that way, cut all three connections.

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