[RELEASE] Zooz Motion Sensor ZSE18

Hi Kevin, it seems you are the king of DTHs in the IOT world !.. Does your DTH for Zoos ZSE18 handle “sleep time”? the time the sensor does not check anything to save battery ? In the screenshots I saw something could be (“Motion Cleared Delay”) but I want to be sure. My Question is because Im looking a sensor for indoor stairs light automation and sometimes could be high traffic, I do not care about change battery every 6 months but light on the stairs with high frequency motion and do not have to wait 4 minutes to get it. Thanks !

The wake up interval is set to 4 hours. You could change that 4 to a higher number in the code, but it would have very little impact on the battery life.

The clear delay setting determines how long after the last motion event it waits before sending the no motion event, but that timer resets every time motion is detected so if you keep moving in front of the it won’t report motion until the specified delay time after you stop.

What I just said isn’t entirely true because of the device’s blind time which is the window after the initial motion event where you can move in front of it without resetting the timer mentioned above.

I think this device’s blind time is about 7 seconds and you can’t change it, but I’ve only seen a few motion sensors that allow you to.

The 3rd type of motion setting is the re-trigger time which is related to duplicate motion reports and it must be greater than the blind time and usually less than the clear time.

Example with motion clear time set to 30 seconds and re-trigger time set to 15 seconds:

You walk in front of the sensor and it sends motion active report, 12 seconds later you walk in front of it again and it won’t send a report, but if you walk in front of it again 5 seconds later it will send another motion active event.

That doesn’t apply to sensors that don’t send duplicate motion reports and I think the ZSE1i is one of those and ST ignores duplicate events so unless the handler is forcing state changes you can’t do anything with the duplicate reports anyways.

I’m sure that’s way more info then you needed, but did I end up answering your question?

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Thanks my friend. Im not understanding at 100% but I think I got the basics. If I want to get a good performance, I can set Motion Cleared Delay setting for example at 10 or 15 seconds (more than blind time), that means if the sensor detects motion, can trigger the stairs light on (b.e. 15 seconds, then light switches off), then sensor will check again after 10-15 seconds, if there is no motion, then it will report no motion event and wait until next motion.

I think if sensor can check every 10-30 seconds it will be very functional (not the 4 minutes ADT/ST sensors used to sleep) …

Did I get it ?!?! Thanks !

Ups !!..seems this sensor is out of stock everywhere…haha…do you have someone ?

I don’t know why I felt the need to explain everything about motion sensors since most of those things don’t actually apply to this device…

The short version is that if you plan on setting up automations that turn the hallway light on when it reports active and off when it reports inactive then that setting determines how long the light stays on for.

It looks like The Smartest House has them in stock again.

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There’s a driver available for the ZSE18 on Zooz’s Edge Driver Channel.