How to make a rule that sends message only once
I am trying to make a rule that sends a message when the luminance is over a certain point and that works.
The problem i have is that as long as the luminance is over that point i will get the message over and over again.
I would like to only get the message once and when the luminance gets under the certen point and the gets over agen the message will be sent again.
Is this possible to do?