How to setup a hardware widget, battery powered, that would trigger an event when not vibrating/moving? Idealy with Zigbee network. Aim is to monitor a continuous activity.
The process is the same as any number of vibration sensors on the internet. It’s just that you set your triggers for when it’s off, not on…
Not really. Especially regarding battery consumption.
That’s why I asked about an hardware device not a software configuration.
The tricky part here is to check for something that is not there.
It can only be defined by being the opposite of something being there.
That means a traditional sensor used opposite its normal setup.
The problem here is that the sensor typical have a cooldown period before a new registration is announced and you need to know this cooldown period to set up the reverse operation of the sensor.
The longer cooldown the more delayed the change to no movement will be.
Why would the battery consumption be any different because you trigger on no motion?
It’s still just a state change that happens.
Just like a door sensor, it updates once.
The battery doesn’t drain just because you left the door open.
Interesting. Do we have any evidence that a vibration sensor battery would drain at same speed on both situations such: stuck on a door with 4 detections a day, or stuck on a truck engine running continuously 12 hours a day?
Although a cooldown period should be considered, it’s not a real issue regarding the question.
I don’t have any.
But looking at how a door sensor reports in the events then it’s just
Open.....Closed
It’s not
Open Open Open Open Open Open Open Open Closed Closed Closed Closed Closed Closed
I would doubt a vibration sensor does it differently.
But I guess it depends on what the sensor reports. Does it only report on/off or does it also report movement direction and such, then it could be a different matter.
But can’t you detect it by any other means? Voltage? Lights? Rotation?
Does it really need to be battery operated?
can’t you detect it by any other means? Voltage? Lights? Rotation?
Yes. Lack of sound/noise. But don’t know about any hardware device neither.
need to be battery operated
Yes. Embeeded outdoor.
Any of these should work perfectly fine, though I’d:
- Only consider devices which support sensitivity adjustments (so you can fine tune it).
- Exclude those with x/y/z axis properties, to avoid unnecessary reporting based on tiny changes.
That leaves you with a shortlist of 3 devices (ignore the Aqara since I couldn’t filter it out).
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