this post was submitted on 02 Jul 2025
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So I've got a couple of Mini PC's and a ODROID H4+ as a NAS, all just standing on my desk at the moment.

I'm going to build them into a 10" Rack and I'd like to have a good cooling solution.

My idea is to buy something like this https://www.alternate.nl/Noctua/NA-FH1-fancontroller/html/product/1917195 And wire it up with a ESP32 board and temperature probes, so that I can connect it all to a dashboard in Home Assistant.

Any advice on this project, or better alternatives would be appreciated.

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[–] jjffnn@feddit.dk 5 points 1 day ago (4 children)

I actually have a working'ish prototype of this project laying on my table right now.
It's a 120mm noctua fan being controlled by pwm i relation to the temperature. It also has an oled screen to show temp and fan speed. All controlled trough home assistant via esphome.
I say working'ish because the temp sensor i'm using (dht11) is unreliable and is messing up half the time, so i'm looking into buying a DS18B20 instead.
I'd be happy to share schematics and code if you'd like it.

[–] some_guy@lemmy.sdf.org 4 points 1 day ago (1 children)

You're pretty rad, y'know that?

[–] jjffnn@feddit.dk 4 points 1 day ago

Thanks. 😀
I had to use 4 different sources to make my project work.
It wouldn't be nice to force others to go trough the same amount of trouble when i already have the files.

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