electronic dice schematics


Posted on Feb 6, 2014

It is good idea to put this circuit in a box and mark/write each LED with number 1 to 6. Now, when switch S1 is pushed momentarily, any one of the 6 LEDs will glow. The Number marked for glowing LED becomes dice`s output. Every time S1 is released, new LED will glow randomly. Chances for each LED to glow is 16. 66%. This circuit makes use of two IC


electronic dice schematics
Click here to download the full size of the above Circuit.

s, IC555 and IC-CD4017. IC-555 is used as square wave generator, and IC(CD4017) as a counter. Actually CD4017 is a divide-by-10 johnson-counter with 10 decoded outputs. IC555 simply generates clock for CD4017, and the clock frequency is controlled by R1 and C1. Counter CD4017 starts counting from 0 to 9 by putting high voltage on each of the 10 pins (one after another). The High voltage shifts from one pin to another on every positive edge of the clock. Since, in our circuit pin-5 is shorted with pin-15(reset), the counter gets reset after reaching 6, and again starts from 0. Now, when S1 is pushed, IC555 generates clock for CD4017. This clock enables CD4017 to count from 0 to 6 by putting high voltage on each of the 6 pins (one after another). These 6 pins are connected to 6 respective LEDs. When S1 is released, high voltage gets latched to any one of the 6 pins, and this becomes output of the DICE




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Volume Control circuit
    Positive And Negative Voltage Switching Supply
    Remote Control Operator
    USB Charge PCB
    Fluid lever sensor circuit design using ac signal
    A-C STATIC LATCHING RELAY
    MICROPOWER METAL DETECTOR
    ICL8038-based Oscillator
    Lantern making use of a relay control circuit
    Flooding rats Electronic cat



    Top