MULTIPLEXING 1 7-segment display w/ 2 switches using PIC16F84A help?

Discussion in 'The Projects Forum' started by motionblur24, Aug 4, 2012.

  1. motionblur24

    Thread Starter New Member

    Aug 4, 2012
    the condition is

    Switch 1 = on
    Switch 2 = off
    the display counts down from 0-9

    however when
    Switch 1 = off
    Switch 2 = on
    the display counts down from 9-0

    and when both switches are on or off
    there is no display

    any delay for each digit will do as long as it can be seen...

    any help with the program and the circuit? i would forever be grateful, tnx!
  2. MrChips


    Oct 2, 2009
    This is not what is meant by multiplexing.

    What you are asking is for someone to write a program that will count up or down depending on the action of two switches.

    This is a simple programming task which you can do yourself. The purpose of this forum is to help people help themselves.