[SOLVED] Help to create a rule "turn on a lamp when motion is detected but only after sunset until sunrise"

[mpuff (Martin Puff)]

Hello Community,

i would like to create a simple rule, when motion is detected turn the lamp on, but only when it is after sunset ore a time like after 19:00.

at first i have created a rule like:

rule " Light on when motion is detected"
when
Item Motion_GF_Corridor_Stiege received update ON
then
Light_FF_Stiege.send command(ON)
end

this rule is working

than i have tried:

rule " Light on when motion is detected"
when
Item Motion_GF_Corridor_Stiege received update ON
and
Item Sunset_Time received update ON
then
Light_FF_Stiege.send command(ON)
end

here i get error rule is either empty or cannot be parsed correctly

i have also tried a rule like this:

rule " Light on when motion is detected"
when
Channel 'astro:sun:home:set#start' triggered START
then
if Item Motion_GF_Corridor_Stiege received update ON
{
Light_FF_Stiege.send command(ON)
}
end

this is also not working, i get here the same error in the losg.

maybe someone can help me with this rule.

kind regards,
martin

[opus (Jürgen Baginski)]

As a start I’d look into

This post

[vzorglub (Vincent Regaud)]

You can look at the post above or you can use a flag item
Please feel free to name it as you want

Items file:

Switch flagItem

Rules file:

rule "Set 1900 or Sunset flag"
    Time cron "0 0 19 * * ?" or
    Channel ‘astro:sun:home:set#start’ triggered START
then
    flagItem.sendCommand(ON) //sets flagItem
end

rule "Turn Off flag item"
when
    Time cron "0 0 6 * * ?" //6am
then
    flagItem.sendCommand(OFF) //resets flag item at 6am
end

rule " Light on when motion is detected after 1900 or sunset"
when
    Item Motion_GF_Corridor_Stiege received update ON
then
    if (flagItem.state == ON) {
        Light_FF_Stiege.sendCommand(ON)
    }
end

Also next time, try yo use the code fences as it help reading your code:

How to use code fences

We all have to type this content over and over and over. Here is a posting we can all point to when the topic comes up. Why use code fences? Because rules, sitemap, logs, and configs are all but unreadable when code fences are not used. When to use code fences? Whenever one is posting any sort of code, config, log, and any text where line wrapping, indentation, and using an equal spaced font makes the text more legible. How to use code fences? Use 3 backticks (```)... Or use <code>... …

Good luck

[mpuff (Martin Puff)]

Thank you very much, it is working with the flagItem
And the Idea with the Switch is also great, so i can tur it off and on manually if i want

[john_shaw]

I’m new to OpenHab and in the process of migrating from SmartThings.
I’m looking to do a similar thing and wondered how the rule given might be extended to turn off the light after a set time interval, of say, 5mins?

[vzorglub (Vincent Regaud)]

You’ll find all the info you need in:

Design Pattern: Expire Binding Based Timers

Problem Statement One often needs to schedule some code to execute at some time in the future. The “usual” way to achieve this is by using a Timer which lets you create and schedule a lambda to execute at a given date and time. However, Timers have their drawbacks including: the need to keep track of open Timers so they can be canceled at a later date, often requiring the use of HashMaps or some other data structure rescheduling or creating a cascade of Timers is challenging (i.e. when a tim…

The expire binding is very easy to use and very reliable
My only gripe with it is that the time delay are in the code and not adjustable at run time

Good luck