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theyosh / TerrariumPI

Home automated terrarium/aquarium or other enclosed environment with a Raspberry Pi
https://terrarium.theyosh.nl
GNU General Public License v3.0
408 stars 98 forks source link

[FEATURE]:PWM Fan Control #910

Closed MeanGreen420 closed 5 months ago

MeanGreen420 commented 5 months ago

Id like to be able to have a variable PWM fan control for enclosures so it can turn on at a slow rpm with its getting warm and speeds up as the temp increases. I was also wanting to use it to control the Terrarium Pi Equipment fan so it can ramp up if it starts getting to warm.

It would be nice to be able to setup a timer feature on it also so it could simulate a breeze.

Thanks

theyosh commented 5 months ago

This is possible by creating a cooling area. https://theyosh.github.io/TerrariumPI/setup/#other-areas

Use temperature mode and select the sensors you want to use.

In your case, select the PWM dimmer at the high alarm tab.

And that should do it. The sensor(s) alarm min and 'alarm max` will control the temperature. As you are using a dimmer, it will try to keep the temperature at the middle of the min and max alarm values. The fan should toggle on when the high alarm is triggered.

But it can happen that the fan will not spin up with low voltages... That is always a bit tricky.

MeanGreen420 commented 5 months ago

Ok, I thought that would work too just haven't had a chance to test it yet.

Thanks!