Shelly2.5 SW stays ON when connected PIR is off - Not sure why..

Blue#River#9198

Hi

I have a Steinel PIR, one that leaves the output line floating (I believe).

Someone suggested putting a Niko LED light between Shelly SW input and Neutral to pull down the SW input. However for me the binary sensor in Home Assistant continues to say the SW is 'on'.

When the PIR triggers, I see the Niko LED light turn on, it turns off when the PIR relay opens the circuit again.

This is the light I'm talking about:

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Here's how I connected it:

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Would anyone have an idea what is wrong and how to 'fix' this?

Thanks a lot!

SebMai

First when the pir isn't compatible buy one other.

Second when you want it working so you need to put the led between pir out and sw not neutral.

But this isn't the best way.

And it would change your problem ( i think)

Blue#River#9198

Hello SebMai

Thanks for the info. At this moment I am not inclined to replace the PIR sensors.

Could you explain how it would change the problem when putting it in series?

Thanks again.

SebMai

Your pir needs a minimum consummation, that's what dosen't work with shelly.

The LED is this consummation.

But atm you have sw to N connected so it can't switched when the pir switched to on.

Possibilities for switching are

SW - N or SW - L

At SW is permanent round 130V for switching both ways.

Have your Pir a relay and when yes. Can you open it and take some pics from the pcb eventually I can help to get it work without the led

Blue#River#9198

I have this PIR: https://www.bol.com/nl/p/steinel-1…Hk83N_cqsHFFTDY

You can hear the relay clicking sound when I come into view.

I changed the LED placement, now it is in series:

PIR out -----> LED ---> Shelly SW IN

I notice that the Shelly now correctly says the input is 'off', however, it remains in this state when the PIR switches on. The LED also does not go on, I guess the voltage over the LED is not big enough for it to start conducting