Scoring game circuit

jacky January 24, 2012 23 Comments


A simple scoring game circuit that can be used for all occasions when a dice is needed.The circuit is based on a NE555 timer,a 74LS192 counter,a74LS247 decoder and a & segment LED display.The timer IC1 will produce the clock for the counter IC(IC2) whose frequency is determined by R1 and C2.When S2 is pressed the IC2 will count in up mode and when S3 is pressed the IC2 will count in down mode.The IC 3 will decode the count to display it on the seven segment LED display .Thats about the working of the circuit.The circuit is designed strictly sticking on to the basics of counters and is a good one for beginners.There is nothing big deal.

Circuit diagram with Parts list.



  • To play the game switch the power ON and press S1 to reset the counter.
  • Now press S2 or S3 and release .The IC2 will hold the last count .Now press S4 to see the score on display.That’s your score.Now the second person can try.
  • Each time one tries, he should press the S1 to reset the count and then press S2 or S3 and then S4 to see the score.
  • Circuit can be powered from a 9V radio cell or a 9V regulated DC power supply .
  • Arnesh Sen
    July 7, 2015

    the diagram is not working. 74192 has no response with the clock pulse.
    please guide me.

  • Omarr
    February 25, 2015

    What pins do you connect to the segmented LED and where is Ground??

  • Ruchika lanjewar
    June 27, 2014

    Hope this ckt will work…

  • avoy
    January 27, 2014

    i dnt found ic 74LS192…there are any other ic which i use replaced by it?

  • December 13, 2011

    are you sure this design is working? plz comment.. need your help..

  • naufan
    July 5, 2011

    hi i’m naufan from indonesia..
    i want to ask,,
    it will showing number from 0-9 how if i want to make it 0-6 ?? to make it more real dice..

  • gaurav
    February 6, 2011

    thanks sir for these projects.

  • mel
    January 13, 2011

    the diagram is not working

  • July 22, 2010

    Hi can anyone make this design using a pic16f84?

  • seetharaman
    July 19, 2010

    Hi Umar kindly go on sharing your circuits by contributing to circuits today’ thanx

  • umar
    July 18, 2010

    i umar am very happy always with this your website, due to the condition of all the time i use to get many ciruit diagram of my desing.

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