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is there such a thing?

Discussion in 'Electronic Components' started by James Lehman, Nov 2, 2005.

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  1. James Lehman

    James Lehman Guest

    is there such a thing as a slide or rotary switch that mechanically encodes
    binary contacts for 6 or 8 bits?

    Thanks!

    James. :eek:)
     
  2. Well, it wouldn't have detents, but you could use a rotary encoder
    wheel and a micro...

    I've only seen 4-bit (16 position) binary switches, but that doesn't
    mean they couldn't exist. 64 or 256 detents might be hard to make
    mechanically, though...
     
  3. From memory, Burns makes (or made) a 7-bit mechanical absolute encoder
    (128 positions). It used some kind of modified Gray code that could be
    realized with a circuit board, IIRC. I have a sample of it somewhere.

    There are optical absolute encoders with at least 10-bit resolution,
    but you might not like the price.

    Of course, incremental optical or mechanical encoders are inexpensive
    and easily available.


    Best regards,
    Spehro Pefhany
     
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