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  1. #1
    Generic GA Sim Builder Jordan Farmer's Avatar
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    How to interface?

    Hi guys, youve probably seen my post on buying the xpdr, well, i recieved it earlier today, and ive just been doing some work to find out the pinouts on the actual number encoders, well, here is what ive worked out, its a little confusing :/

    0 = Common + 1,2 or 4
    1 = Common + 2 or 4
    2 = Common + 1 or 4
    3 = Common + 4
    4 = Common + 1 or 2
    5 = Common + 2
    6 = Common + 1
    7 = No connection

    So, this basically means for number 0, i get a connection between any of the terminals, they are all connected, number 1 i get continuity between C+2 or C+4 etc etc, i hope you can understand this, and if possible, help me with how i would interface this? Would i have to use a special I/O board or could i simply have 4 connections per number and use a macro type thing? Cheers guys, and sorry for being so confusing!

    Jordan

  2. #2
    Generic GA Sim Builder Jordan Farmer's Avatar
    Join Date
    Aug 2009
    Location
    Exeter, Devon, United Kingdom, 1.14701878546E+14, Exeter, Devon
    Posts
    164
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    Re: How to interface?

    sorry guys, ive just found the truth table, this may make more sene to you, hope it does anyway!

    truth table 8 pos switch.jpg

    Jordan

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