Rule Etiquette

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1

Hello all. Hope all are doing well during this pandemic.

I have a question about the 'right' way to write rules and logic.

I currently have a rule that turns off the exhaust fan in the washroom. Basically, when the fan goes on, a timer starts. After 10 minutes, the fan turns off. This is cancellable if the fan is turned off manually.

Ok, so now I have another rule that detects humidity in the washroom. When the humidity reaches a certain percentage, the fan turns on. Within that same rule, I also have the 10-minute timer.

So basically, I have the same 10-minute timer in both rules. It works, but it feels messy. I know that no one else but me sees the rules, but I am looking for some thoughts on this.

Cheers,

2

If the second rule, for humidity, simply turns on the fan...won’t the first rule be triggered by the fan turning on and still automatically turn off the fan after 10 minutes?

I don’t believe the humidity rule needs to turn off the fan at all.

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3

There’s also this app that @napalmcsr wrote that can do what you’re looking for, i.e. turn a switch on when the humidity rises above a set threshold, then off when the humidity goes back down, OR it can turn the switch off after x minutes if it was turned on manually.

Smart Humidity Fan

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4

Couldn’t you have the fan switch turning on and humidity as triggers for the same rule?

5

Super cool. I didn't realize that someone had written something for this already.

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6

You are right. For some reason, I couldn't get my head around that.

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7

I have this rule setup for a few bathrooms. I also have a motion in a few that I also leverage to trigger off for the fan. Here is the rule I just run mine for 30 :joy:

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8

You might like to revisit your rule seeing that, speed wise - Apps appear to beat Rules. :slight_smile:

9

True but for automations like these if it runs slow I don’t care since I am long gone from bathroom.

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