Dear all,
I would like to create a circuit which can detect vibration for 15 seconds then only output a signal pulse to LED. The LED will then ON for 10 seconds and turn off if no more vibration.
I have been trying using 555 timers but I can only make the LED turn on 10 seconds but can't do the 15 seconds timing.
My circuit block diagram:
Vibration Sensor ----> 555 timer ----> LED (On for 10 seconds, this is set by 555 timer RC timing)
This circuit is unable to do the first part "detect vibration for 15 seconds then only output a signal pulse".
I am creating this circuit to monitor machine vibration to see what is causing the vibration. Any idea how to do this?
Thanks.
I would like to create a circuit which can detect vibration for 15 seconds then only output a signal pulse to LED. The LED will then ON for 10 seconds and turn off if no more vibration.
I have been trying using 555 timers but I can only make the LED turn on 10 seconds but can't do the 15 seconds timing.
My circuit block diagram:
Vibration Sensor ----> 555 timer ----> LED (On for 10 seconds, this is set by 555 timer RC timing)
This circuit is unable to do the first part "detect vibration for 15 seconds then only output a signal pulse".
I am creating this circuit to monitor machine vibration to see what is causing the vibration. Any idea how to do this?
Thanks.