Hi all, I'm looking for some guidance/best practice when evaluating several similar inputs. I have thee Luminance level inputs (2no Zigbee & 1 Wifi) lux meters. I use the Lux level to trigger or influence flows for such mundane tasks like zone lighting (Light level and colour temperature). I have…

I would do this by making sure the three inputs have unique topics then feeding them into a Join node configured as below to give you, every time you get any input, a message containing all three values. Then you can run whatever algorithm you want to ignore faulty values and (possibly) average the…

Thanks, it's the 'algorithm' I need help with. Some ideas ect...

First you need to work out, in words, what you want to do. For example you will need to know how to identify faulty values in order to ignore them. There is no generic answer to that because it depends on the type of fault conditions that the particular sensor/measuring system that you are using i…

Generally it's freezing, i.e no longer changing, but that's not foolproof. I do have three, so how about take an average of the three and discard the outlier...?

When you say they are freezing do you mean they stop sending readings or they keep sending but it is wrong?

They are devices hosted by Home Assistant, so NR gets a response from HA, but that response is not always valid. If a sensor has frozen (It's output value remains unchanged) it's not obvious to NR as HA will still respond with a value.

Looks like a reason not to use HA if it just keeps sending the last reading when it is not getting new values. One way might be to always take the average of the two that are closest together and ignore the third one.

[image] dougle03: Generally it's freezing, i.e no longer changing, but that's not foolproof. I do have three, so how about take an average of the three and discard the outlier...? If one or more are freezing, there will be no value. Personally, I would use a function node (but then I'm a bit …

[image] TotallyInformation: If one or more are freezing, there will be no value That doesn't agree with what @dougle03 said, which was that HA gives him readings even when it is frozen. I can't comment as I don't know about HA.

I'd already written that before I saw his comment about HA. Agree that if HA is getting in the way, ditch HA!

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Guidance on evaluating several inputs to one process

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Guidance on evaluating several inputs to one process

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