How to trigger an action only if a condition was met for a specified time?

[tzoom]

I'd like to make a rule where I am sent a notification if humidity on a sensor exceeds X%, but only if it has been above X% for at least N minutes.

I'm sure this has been asked/addressed before but wasn't able to find it in search. I suspect I can use a combination of delays or private variables with conditional logic. I figured I'd check here for a good example before attempting to work one out on my own (with likely initial bugs).

[tivomaniac]

While not for humidity you can probably get some ideas from this. In this one I change the thermostat if doors are left open for more than 2 minutes and I change it again once the doors are closed for more than 2 minutes. You would just want to use the Delay command and then make an IF test after the delay to see if your initial trigger condition was still true.

[tzoom]

Thanks for the reference!