How to check a value remains above threshold for a time?

General
1

I have a input value of sun radiation and want to control blinds with it. But the value is very unstable, so I want to react (shades down/up) only if the value remains above or below a threshold for a given time (e.g. 10minutes). Since I want to react faster if radiation increases then if it decreases the mean value is not optimal.

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I was fiddling around with traffic and delay but come to good solution. any ideas where to look further?

Thanks

2

look at the trigger node and extend option within it etc

3

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