Motion sensors / light sensors / rooms

Ok. So I have ventured into putting motion sensors in (finally)

But I am having some concerns with the scenarios. Mainly the bedroom. I had some time based rules in place but not sure if that’s ideal either.

So here is what I have

rule "Bedroom Motion Sensor"
        Item BedroomMotionSensor changed
        var Number hour = now.getHourOfDay
        var triggeredTime = BedroomMotionSensor.lastUpdate()
        var LightLevel = MasterBedRoomLightLevel.state as DecimalType
        logError("Bedroom", "Last Triggered " + triggeredTime.toString)
        logError("Bedroom","Tst2 - "+BedroomMotionSensor.maximumSince(now.minusMinutes(5).minusSeconds(30)).state.toString)
        //get some values
        if(MasterBedroom_MotionSensorOverride.state == ON)
        override = true
        logError("Bedroom","Override is ACTIVE!")
        override = false
        logError("Bedroom","No Override")
        //if ((hour >= 18) || (hour <= 5)) {
                var Number numOn = gLivingRoomLights.members.filter(s | s.state == ON).size
                logError("Bedroom","Bedroom Count"+numOn.toString)
                if(numOn > 0)
                        //check for override
                                //living room lights are still on, leave it alone
                        if((BedroomMotionSensor.state==ON) && ( LightLevel > 69))
                                        logError("Bedroom","Bedroom Motion Detected - ON")

                                        logError("Bedroom","No Motion, turn the lights off")

In short

  • check for override
  • check if any living room lights are on
  • if light sensor indicates dark - turn the lights on

I have it check to see if the living room lights are on because that indicates not bedtime yet so still turn the lights on. However this backfires on stormy days where there is slightly more light in the livingroom because of the bay window but the bedroom is dark so it should turn on then, but the living room lights are off so no turn on. But I also don’t want to accidentally trigger the lights if I turn in the middle of the night or something.

Anyone have any suggestions? Or is motion sensors in the bedrooms a bad idea? I do have overrides in place in case I or the wife have to go to bed early one night or something.

PIRs really cannot handle night time very well. I would approach this as follows:

  • Use a little bit of time of day logic so you know when it is day time or night time
  • Use a light level sensor in the bedroom
  • If it is day but the light level is below a threshold turn on the lights when the PIR triggers
  • If it is night ignore the PIR sensor
  • Use something other than the living room lights state to determine when you are in bed.
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