Hi All
Im having difficulties finding a solution for this function, and would be happy if someone could help me in the right dirrection.
I have two 555 timers, that are suppose to work this way:
When T1 is triggered from a low signal, the output should remain high when trigger is low + 10sec. and open a solenoid valve. (here comes my problem) T2 should give an alarm if the solenoid valve has been open for more than 30sec. The alarm must remain low after some time, so it is not required to be reset. the circuit is to be working as normal also after the alarm.
Hopefully someone can make sence of my descripton
Im having difficulties finding a solution for this function, and would be happy if someone could help me in the right dirrection.
I have two 555 timers, that are suppose to work this way:
When T1 is triggered from a low signal, the output should remain high when trigger is low + 10sec. and open a solenoid valve. (here comes my problem) T2 should give an alarm if the solenoid valve has been open for more than 30sec. The alarm must remain low after some time, so it is not required to be reset. the circuit is to be working as normal also after the alarm.
Hopefully someone can make sence of my descripton
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