In this Proteus simulations, we demonstrate the operation of the ring counter (74HC4017). Pulses clock comes from the 555 timer. running the dice at about one hertz.
Proteus file:
https://www.dropbox.com/s/s6rsfzl8hnt...
4017 Datasheet:
https://www.dropbox.com/s/8qhe6xyzrq1...
Inspirations:
http://pcbheaven.com/circuitpages/Ele...
http://pcbheaven.com/circuitpages/ima...