IKEA Vallhorn Motion Sensor

Illuminance calculation is now modified.

HI all,

Is now Illuminance more or less accurate?

regards

Hi,

The illuminance measurement is more accurate than before when the illuminance is below 500 lux (usually indoors). At values ​​higher than 500 lux, the measurement differs a lot from other sensors.

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I have three Vallhorns net to each other in my living room that have the updated driver. The Lux values are 5338, 3998 and 3268. Thats quite a variation but I suspect it is down to the hardware…

Are all three in the same location, facing the same way, and exposed to the same light source? I’m sure the light intensity varies dramatically within a room!

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All three on top of the same speaker facing the same direction. No gaps between them.

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Hello,
After paired the sensor, and now is working in my case.
The other 2 buttons are used for what?

Hi,

The motion sensor can be connected to 10 Ikea light sources at the same time, and they all work in unison.

You can choose to set the motion sensor to day or night mode and also set it to automatically turn off after 1 or 5 minutes.

From Product Details:
VALLHORN wireless motion sensor, smart/white - IKEA

I could really need a little help with this device.

  • I have installed 2 Vallhorn.
  • Both installed with Zigbee Motion Sensor Mc.
  • They both work the same way
  • Illuminance and signalMetrics is updated on regular basic
  • Motion is only updated if I push one of the buttons on the back of the sensor, there is no update from “motion” no matter how long I wait.

Anyone with an idea?

Best Henrik

I haven’t had such a problem.

Are your sensors in night mode?

They were not.
As soon as I toggled to night mode, they both changed status to active - and turned the light on I have programmed.
However they will now stay in the new “active” status, It is, as they will only change status when I press one of the buttons on the back.

Are you controlling lights via ST routines or using Ikea direct connection?

Have you made factory reset?

To factory reset quick-press the Pairing button 4 times (within 5 seconds).
Pairing started immediately ( no need to push pairing button ).

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I do all my routines in ST.

I think I have found the reason why they don´t work.
When installing, I used new Alkaline batteries. After swapping them to rechargeable batteries, both sensors works and changes status when motion is seen.

Thank you for your help.

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Has anyone’s Vallhorns (after 20 mins of working perfectly) started ghost senseing movement? I get 40 or more triggers with it in a box in a dark closet. Reset several times and it always does the same thing. makes it kinda worthless.

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Are you using normal 1.5V batteries? If yes you have to switch to LADDA 1.2V batteries.

More discussions on the topic

Ikea Vallhorn False Motion Detection - Hardware - Home Assistant Community (home-assistant.io)

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Yes I had the same issue using standard AA batteries. Changed to rechargeable Ikea batteries, issue sorted.

Hi! I have bought IKEA Parasoll door sensor. I have installed the driver from Mariano’s Edge drivers Shared Channel. However when I pair the sensor it is paired using “Zigbee Thing” driver. There is no other driver available if I try to choose “Select different driver” option.

Which driver you installed?

Ikea Parasoll’s driver is Zigbee Contact Mc.

Thanks for the reply. I was using the “Zigbee Motion Sensor Mc”. I howver have deleted the “Zigbee Things” driver thinking that if I remove that one, it will start using the other driver. Now I am not able to pair the device at all. Do you know how can I reinstall the “Zigbee Things” driver?

Thanks for the reply. I was using the “Zigbee Motion Sensor Mc”. I howver have deleted the “Zigbee Things” driver thinking that if I remove that one, it will start using the other driver. Now I am not able to pair the device at all. Do you know how can I reinstall the “Zigbee Things” driver?

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