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-   -   [Computer Engineering ] Why isn't my logic gate working? (https://www.askmehelpdesk.com/showthread.php?t=773464)

  • Oct 31, 2013, 02:52 PM
    Chin19
    [Computer Engineering ] Why isn't my logic gate working?
    Hello,

    I have completed my truth table, boolean expression, logic diagram and wired up everything, but I do not know what's wrong with my logic gate. I've checked over my wiring and everything but the outputs do not correspond to my truth table.

    Logic diagram: imgur: the simple image sharer

    Truth Table: http://imgur.com/KGKH27j

    Boolean Expression: (A+B)(B+C)

    Breadboard: imgur: the simple image sharer

    Gates from left to right: OR, AND, NOT

    Red wire is input A
    Purple/blue is input B
    White is input C

    I do not know why it is not working according to my truth table. Is my truth table the problem?

    Thanks

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