How to control lights with Aeotec Trisensor app

[CortoMaltese]

Wonder if anyone can help with controlling lights with the Aeotec app. I need to turn on lights in a room when motion is detected and the room is dark. I am using an Aeotec Trisensor for the purpose.

I have created this flow:

WHEN luminance becomes less than a variable set in Logic
AND the motion alarm is on
THEN starts a flow that turns the lights on

This is not working and I am starting to have the feeling that I can’t do what I want by using this sensor by itself. As a matter of fact, it would make more sense if the flow was this way:

WHEN the motion alarm turned on
AND the luminance is less than a variable set in Logic
THEN starts a flow that turns the lights on

However, the app doesn’t let me do it as there is no option to check for luminance in the AND section.

Any idea?

[DirkG]

The second flow is the right one. The trigger must be “Motion is detected / Motion alarm turned on”.
For luminance values you need to use the Homey build in logic cards in the And… section.

And…
– Logic → is less than → tap the tag → tap the local tag “Brightness” → fill a value in → checkmark

Please have a look at this tutorial:

Getting Started - Logic variables

Hi everyone, in this tutorial I will tell you about logic variables and you will learn: how to create a variable the different kind of variables and; their properties and limitations some uses cases of the different types First, let’s take a look at what Athom gave us to work with, shall we? In your app, go to the ‘more’ tab and hit ‘logic’. I already have some variables in my app, so my screen looks like this: [20191102_111239] You’ll notice I made a blue mark on the printscreen, highligh…

[CortoMaltese]

Thank you for the reply but I can’t use the second flow because the app doesn’t have the option to check for luminance in the AND section, as I said in my post. Unfortunately the app has only one option in the AND section, that is “motion alarm is on”.

I already use a logic card for the luminance value.

[robertklep]

@CortoMaltese

I already use a logic card for the luminance value.

So what’s the problem?

[CortoMaltese]

The problem is that the first flow I listed doesn’t turn the light on. In fact, this doesn’t make any sense, the flow should be triggered by motion and not luminance. As I can only add another motion check in the AND section, this makes the app useless if I need to automate something based on two conditions.

[robertklep]

But you just wrote you already use a logic card for the luminance value, so I fail to see the issue.

[CortoMaltese]

Ok, I see now what you mean. Luminance becomes a variable in the system when adding the app. I wasn’t aware of it. What I meant is that I use a logic card for the luminance sensor check.

This solves the matter. Thank you!

[DirkG]

@CortoMaltese

the app doesn’t have the option to check for luminance

This does not depend on the app but on the capabilities of the device (Aeotec Tri-Sensor). As the Aeotec Tri-Sensor can measure luminance, the " luminance " capability is also available for the logic cards.