How to get an alert if door is opened for more than 45 seconds ?527
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pat private msg quote post Address this user | |
| Hi, I don't see how I could used derived stream, latency event or other to get an alert if my door is opened for more than 45 seconds, any help ? I receive a 1 each time the door is open and a 0 each time it is closed. How can I set an alert if I don't receive a 0 within 45 seconds from the last 1 received ? Thank you |
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MikeMills private msg quote post Address this user | |
| You will have to user derived streams and get a derived stream to derive automatically at the current time. See this thread: https://forum.grovestreams.com/topic/494/gap-filling-forward-to-current-time/ Also search for "kicker" in the forum. Your logic can compare the source stream for a 1 and track the SAMPLE_TIME. Then use time()-SAMPLE_TIME to get the number of milliseconds that have passed. Setup an event/alert on the derived stream. This won't get you an alert at the 45 sec mark, but you should get one within 3 minutes since derivation runs 2-3 minute cycles. |
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