object count

Discussion in 'Homework Help' started by jokester4u, Mar 19, 2013.

  1. jokester4u

    Thread Starter New Member

    Nov 3, 2012
    26
    0
    I have to do the question with comparators, counters, deccoder display the count with seven segment disply in multism this is my work

    the source should be LDR sensor
     
  2. Georacer

    Moderator

    Nov 25, 2009
    5,142
    1,266
    I 'm not sure I understand your question.

    Could it be that you must decode the 4-bit number for use in a 7-segment display? In other words, re-build the 7447 IC.

    In any case, you must show your work and efforts first, even if it's wrong, before we jump in and help you.

    Hint: Start by writing the truth tables of each output (a-g) as a function of the data bits (A-D).

    P.S. Use images to show your circuits. Not everybody can open a Multisim file.
     
  3. MrChips

    Moderator

    Oct 2, 2009
    12,415
    3,354
    what does object count have to do with your question?
     
  4. WBahn

    Moderator

    Mar 31, 2012
    17,715
    4,788
    I'm thoroughly confused.

    Your first post talked about having to the question. What question? You haven't told use what problem you are trying to solve.

    Then you talk about object counts but then talk about using LDR sensors but then post schematics with a 555 timer.

    Take a step back and explain the problem you are being asked to solve.
     
  5. jokester4u

    Thread Starter New Member

    Nov 3, 2012
    26
    0
    i have to make a simulation using multism for object counts crossed in the conveyer system using digital components such potential dividers, comparators , counte, decoder etc.
    the source should be ldr sensor to sense the object /
     
  6. jokester4u

    Thread Starter New Member

    Nov 3, 2012
    26
    0
    got it ??????????????????????????
     
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