up, down counter with pic 16F84A

Discussion in 'Embedded Systems and Microcontrollers' started by kathy_lila, Mar 8, 2012.

  1. kathy_lila

    Thread Starter New Member

    Mar 8, 2012
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    can you help create a 0-99 counter with up , down and reset button and a start button and also once the start button is pressed it will countdown until it reach 00...i need to use pic16f84a....
     
  2. bertus

    Administrator

    Apr 5, 2008
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  3. Wendy

    Moderator

    Mar 24, 2008
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    I wondered where it went. I was working on moving it myself and boom, it was gone.
     
  4. Markd77

    Senior Member

    Sep 7, 2009
    2,803
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    How far have you got so far?
    Are you using 7 segment LED displays?
    If so you will need to multiplex them (google it).
    Start simple, try and get the 2 displays showing any 2 different digits.
    If you haven't already started, get the template code for the PIC16F84A (from Microchip).
    The first thing to do is to get an LED to blink, so that you can test that your basic setup and programmer are working.
     
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