Latched Steady-Hand Game using 555 & 4017
Latched with 555 & 4017:
This works in the same way as the latched circuit but it also sends the
clock pulses from pin3 of the 555 to the clock input of a 4017 making it
count from 0 – 9 & lighting the 10 LED’s up in turn.
Can be reset by pressing the reset switch.
Buzzer is still controlled by the 555, so everytime the buzzer sounds the
led’s will change.
Push Switch
555
Astable
4017
Counter
LED’s
BUZZER