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Fibaro Motion Eye – Adjusting the Sensitivity of the Brightness (LUX)

by crissxcross21. November 2015

Shortly noted: In case your motion sensor is showing dream values even though it is dark inside the room – this is the solution. First of all, I would like to thank Ben, who informed me about this feature. Both of our Fibaro Motion Eyes show a pretty absurd Lux Value for the brightness. In my case it was 47 Lux in a very bright room. In his case it was 150 Lux in a pitch-black room.

This can be fixed with just a few clicks. Ben found out, that under settings, you can change a parameter, which shows, at what difference in Lux the Fibaro Motion Eye is going to report the values to the Fibaro Home Center. By default, this is at 200. This means, the change will not be reported to the HCL, until the brightness changes around 200 Lux from the current value. This obviously is baloney.

How can I change that?

Go to Modules in your Fibaro HCL or HC2, then to Fibaro Motion Eye. You can find the parameter 40 in the tab “Expanded”.


Fibaro HC2 – Settings Motion Sensor

Fibaro HC2 – Settings Motion Sensor

This is described as follows: This parameter determines how much the light intensity has to differ from the last value to be reported to the controller. This value is, as already mentioned, on 200 Lux, by default. You can click on this value and freely vary it according to your needs. Afterwards, you click on safe. Is it on 200 again? Do not be surprised the value did not change. One line farther down, you will be able to read the following sentence: Last set value: 40lux

Fibaro HC2 – Motion Sensor – LUX Difference

Fibaro HC2 – Motion Sensor – LUX Difference

This means, the value adjusted by you, is now deposited in the Fibaro Home Center Lite / 2, but has not yet been sent to the Fibaro Motion Sensor. You have to start that manually. In order to do so, just open the Motion Sensor and click the button (the one you already used for the registration of the Motion Eye) 3x in a row. The eye will turn blue and you will see that the new parameters are being sent on the web surface of the Fibaro Home Center.

Fibaro HC2 – Motion Sensor – Transfer Settings

Fibaro HC2 – Motion Sensor – Transfer Settings

Similar to the registration of new components, you should again be pretty close to the Fibaro Home Center with the Motion Sensor. This simply is, because of the Z-Wave technology, due to the fact that an inclusion only works on direct way and not via different hops in the web.

Afterwards, you can go to the settings of the Fibaro Motion Eye and check, if the settings have been adopted.

Fibaro HC2 – Motion Sensor – Adopted the LUX Value

Fibaro HC2 – Motion Sensor – Adopted the LUX Value

I am using two Motion Sensors in one room for testing. I changed the value on one of them to 40 LUX. The other one is set on standard configuration. It is pitch-black in the room and it shows that the manually configured Motion Sensor displays the 0 Lux as well.

Fibaro HC2 – Motion Sensor – Comparison LUX

Fibaro HC2 – Motion Sensor – Comparison LUX

 

About The Author
crissxcross
Hi, I'm crissxcross, qualified IT system electronics. Professionally, I work as a product marketing manager in the Smart Home. And private I am self a Smart Homie :-) If I do not sit in front of the monitor like I photograph and am a big fan of Apple. I am the founder of the SiiO.de blog.

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