OK all,
This is a real stumper for me. I'd like to to be able to use a momentary, N.O. push button switch to start a timed on circuit. In other words when I press the N.O. switch a buzzer come on but with an unknown time length.
My first thoughts were to meld a constantly operating 4017(sort of a random dice generator) circuit with a 555 timer, but the RC time constant would be governed by the resistance from the 4017 outputs.
I think, I KNOW the circuit I built below is wrong and would like some help fixing it, that is if a 4017 can do the trick. If not, what can?
Thanks
This is a real stumper for me. I'd like to to be able to use a momentary, N.O. push button switch to start a timed on circuit. In other words when I press the N.O. switch a buzzer come on but with an unknown time length.
My first thoughts were to meld a constantly operating 4017(sort of a random dice generator) circuit with a 555 timer, but the RC time constant would be governed by the resistance from the 4017 outputs.
I think, I KNOW the circuit I built below is wrong and would like some help fixing it, that is if a 4017 can do the trick. If not, what can?
Thanks
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