Rollershutter up --> lights off

[danst (Daniel)]

Hi,

I would like to automatically switch off lights in a room as soon as the roller shutters have been opened.
I am wondering about the easiest solution to linking roller shutter and lights together.

This is my rule up to now:

rule "Test if roller shutter went up then switch off lights in the room"
when
Member of gShade changed
then
Thread::sleep(90000)
val delta_wert = triggeringItem.deltaSince(now.minusSeconds(120))
// Rolladen: 0: oben; 100: unten
// <0 wenn vorher 100 war und jetzt 0 (also oben) ist
if (delta_wert < -50) {
    logInfo("rolladen.rules", "Delta: "+ delta_wert + "; jetzt Lampe dazu suchen...")

}
end

Thanks,

Daniel

[rossko57]

@danst

This is my rule up to now:

What don’t you like about it?

I don’t like the sleep, it’s really bad practice, but easily replaced with a timer later - once you’ve got the rest of the rule to your satisfaction.

I don’t understand the use of deltaSince. Is the requirement not “It’s changed, now it’s open, so let’s turn lights off if they’re on” ?

[danst (Daniel)]

@rossko57

I don’t understand the use of deltaSince. Is the requirement not “It’s changed, now it’s open, so let’s turn lights off if they’re on” ?

You are right, this does not make sense. I will just check if they are now open.

However, the bigger challenge for me is to find the right light to switch. The easiest would be to have an array of roller shutter → light connections. Would that be possible?

Daniel

[memphiz (Oliver)]

Hi Daniel,
have a look at this Design Pattern:

Design Pattern: Associated Items

Please see Design Pattern: What is a Design Pattern and How Do I Use Them for how to read and use DPs. Problem Statement Often one will have a number of separate Items which are all related to each other in some way. For example, one might have a Contact on a door and a DateTime to represent when the last time the door was opened. This is easy enough to keep track of if there are only one or two such Items, but if one has a lot of similar Items or is using a lot of generically coded rules where…

With associated names it should be possible to adress the light associated to the rollershutter.
Regards,
Oliver

[giejay (Gert-Jan)]

I am mapping my motion sensors to my lights using map transform: https://www.openhab.org/addons/transformations/map/

In the rule: val lightName = transform(“MAP”, “motion_to_lights.map”, triggeringItem.name)

So triggering item is the motion sensor, in your case that would be the rollershutter, the value would be your light.

motion_to_lights.map
BathroomMotion_MotionAlarm_Zigbee=Bathroom
FirstFloorMotion_MotionAlarm=GatewaySwitch
Stairway1Motion=FirstStairwayLight_Power
SecondFloorMotion=SecondFloorLight
ClosetMotion=ClosetLight_Power
GangMotion=Gang
RingMotion=FrontdoorLights

[danst (Daniel)]

Great idea, I am going to try that immediately!

Daniel