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BCD up-down counter 7segment with Thumbwheel switch

Discussion in 'Homework Help' started by kctt, Jun 26, 2016.

  1. kctt

    kctt New Member

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    im doing a bcd 7segment up down counter with thumbwheel switch. i have no idea what kind of circuit to use along with what kind of ics and the connection. any kind expert out there willing to help me plot the circuit out? really in need of this circuit.
     
  2. kctt

    kctt New Member

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    in need of help!
     
  3. Inquisitive

    Inquisitive Super Moderator

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    Hi kctt welcome to ETO.

    Is this a homework assignment?
     
  4. dave

    Dave New Member

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  5. kctt

    kctt New Member

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    yes it is. and im down to 2 weeks to design the circuit and build it. so im in desperate need of help for someone to design it for me.
     
  6. Inquisitive

    Inquisitive Super Moderator

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    I don't think anybody will design it for you.

    You will have to show your work. People will help when you get stuck.

    If this is part of a course you must have some idea of what you need to do.
     
  7. kctt

    kctt New Member

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    so far i have a cd4511 thumbwheel switch and a 7 segment as decoder. im missing a 555-timer and i have no idea if it fits the circuit or how im suppose to connect it
     
  8. kctt

    kctt New Member

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  9. kctt

    kctt New Member

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    this is what i have so far, i believe its just a decoder. what about counter
     
  10. MaxHeadRoom78

    MaxHeadRoom78 Active Member

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    Double posting here and in other forums! Same question.
    Max.
     
  11. JoeJester

    JoeJester Active Member

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    You need to revisit your drawing after looking at the CD4511 datasheet.

    It will be painfully obvious why you need the 555 timer.
     

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