Homey Community Forum

Lux sensor with continuous reporting

#1

Hi,

I’m currently experimenting with the Xiaomi Aqara motion sensor. This has a build-in lux sensor which I tried to use for making the lights go on/off based on the lux-value. I noticed the lux-value is only reported to Homey when there is motion detected. I actually need a sensor which also report lux-value even if there is no movement.

I’ve got my eye on the Neo Coolcam but I can’t find if this is also only reporting on motion or if it’s reporting every x minutes or so. Can anyone confirm?

Xiaomi / Aqara Smart Home - Zigbee App (v0.5.5)
#2

Neo coolcam v1 and v2 only update lux when there is motion. This is very obvious since it would otherwise drain their batteries

#3

Check. But do you by chance know any sensor which would do such a thing? It doesn’t need to be a battery powered device per se.

#4

Pretty sure that my Philips hue motion sensors reports LUX/Temp changes with out motion.

Ill double check for you.

1 Like
#5

I have neo coolcam v2, I get lux and temp update when there is no motion.

#7

Have some V2. They send, when configured in advanced Settings, the Values on every WakeUp and Motion and not only on Motion.

#8

My Aeotec Multisensor 6 sensors update lux values without any motion. Even better, if powered via USB then I can get them updating values instant even if 1lux change in luminance.

3 Likes
#9

But that’s still not realtime :wink:

#10

Yupp, you are right. An powered Aeotec can do this.

1 Like
#11

Checked the specs of the Aeotec sensor and on the website there indeed saying “MultiSensor 6 will be able to run in an advanced mode, providing temperature, humidity and light readings in real-time.”
So it looks like that’s a good candidate…

#12

Yes, but my neo coolcam is in the corner of my living room it is a little bit dark, I set de update lux = 3 and temp = 0.1 degrees I used now for almost 5 months and de battery is 87%
On the lux I put the lights on and off in the living room and it works very wel.
What is realtime if it is works what you want.

#13

I doesn’t need to be realtime per se, once per x minutes will be enough for what I have in mind right now.
The main thing is that it needs to report lux also when there is no movement. (Realtime might be a nice touch though).

#14

I think you want a update when de lux is changed, I don’t want a update when de lux is changed, but there is a parameter when the lux is not changed then send the lux value on x time (sec or min) to homey.

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#15

Sorry,

I don’t want a update when de lux is NOT changed

#16

As told here before, the Philips hue motion sensors can report it without motion and in the settings you can configure how often they should report.

#17

I have neo coolcam v2, I make a mistake when I write it down, I forget the NOT. see the post before my last post.

#18

How/where do you set the report interval?

#19

If you need it for putting some lights on, the Neo does his job.

Hue motion sensor - no lux value
#20

I am using the hue motion sesnors for lux measurements.
When lux is below a certain level lights go on.
Works fine.
You can even set a minimal and maximal reporting period in the sensors settings

#21

Flow example and sensor settings (hue sensor directly to lonked homey not via hue bridge)
Lights on by lux (evening).
When: lux changed
AND: lux measurement lower then better logic constant
AND: light not already on (prevents to trigger the flow when the lights are on alread)
image
Lights on in the morning
When: a certain time (I trigger a virtual device at a fixed time)
AND: lux value is lower the better logic constant
image

Lights off by lux (morning).
When: lux changed
AND: lux measurement larger then better logic constant+offset (the offset prevents the light to switch on again right after switching of)
Lux value is dependend on a virtual device setting “schoonmaak” when the cleaning lady is in, the lights stay on longer (larger offset)
image
Settings for the sensor (PS: (ms) should be (sec), thats a typo by athom)
image