Hi all. I've searched and couldn't find a solution to my problem. I think it should be easy but can't figure it out on my own. Just starting with node-red. I'm using it with home assistant. I have a poll state node that checks temp every 10 minutes. I use this flow to send a message to my tv. What …

This should work [{"id":"89faddb4.adcff","type":"inject","z":"aaa27ee4852b402b","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"20","payloadType":"num","x":110,"y":660,"wires":[["69d74780.c3706","d8105e11.a53ba…

Have you looked at the Filter node? It ofers "block unless the value changes" and "block unless the value changes by n%"

I've seen some flows using the filter node but can't seem to know how to use it. It can do the part "block unless the value changes" but, where/how can I do the "block unless the value changes by n%" ? [imagem]

This is my current flow: [{"id":"3085c8029a404c08","type":"api-call-service","z":"804ab9ebc9da9197","name":"Notifica TV","server":"e1926eef.58258","version":5,"debugenabled":false,"domain":"notify","service":"tv_sala","areaId":[],"deviceId":[],"entityId":[],"data":"{\"message\":\"A temperatura no e…

[image] E1cid: This should work [{"id":"89faddb4.adcff","type":"inject","z":"aaa27ee4852b402b","name":"","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"20","payloadType":"num","x":110,"y":660,"wires":[["69d74780.c37…

It is two inject simulating different readings connect your HA node to both the filter and the join.

[image] hugovsky: where/how can I do the "block unless the value changes by n%" ? If you select "block unless value change is greater than", you can then enter eg "10%" and choose if the comparison should be with the last input or output value. [Untitled 4] [{"id":"4d711fe85855c6fd","type"…

@E1cid I've marked your answer as the solution. I does exactly what I wanted. Thank you. @jbudd Thank you for your contribution, too.

SO much to learn... Thank you again.

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One node inputs output only if inputs are different

General

hugovsky 12 September 2022 22:42 8

ahh... ok. Sorry. I didn't understood it

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One node inputs output only if inputs are different

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