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I have a vague plan of doing this in mine if I can get ethernet and power up there (I need to drill a hole in the chimney breast and see if I can get some wires all the way from the loft to the lounge).
The loft does get pretty hot though so think I'll just stick a temperature sensor up there to start
aggi-
The loft does get pretty hot though so think I'll just stick a temperature sensor up there to start
While I don't have a general air temperature sensor I do have two Raspberry Pi's running in there at the moment. One is in an Argon One M.2 case with a little fan running Home Assistant and using the Argon One Active Cooling Addon. It was configured by default for the fan to come on low at 54 degrees, I dropped this to 53 and it has come on low a few times during this recent hot weather (on low you can't hear it in the bedroom, so that's cool).
The other is running a Unifi Controller and Pi-Hole in one of these metal cases I bought because it looks a bit like something Unifi would make :)
I haven't got round to fitting a heatsink to it yet but plan to fit a big one which will butt up against the case so heat transfers. Even without a heatsink I've not seen it get hotter than about 60 degrees yet, so basically I think I'm good.
I'll be able to confirm this if @Stonehedge has still got that temperature sensor going spare but my working theory is that my eaves are generally cooler than places the kit I'm using will end up being used in hot countries, plus Unifi kit seems to be designed to run as hot as the sun anyway, even in a cooler room, so I think it can take it.
Fox
I had the same problem (of my own creation admittedly, because the master socket was somewhere else originally but in a dumb place) so I ran power to mine.
I also installed LED bulkhead lights, four ethernet cable runs to elsewhere in the house and a bunch of smart home stuff. It's still a work in progress so the wiring and so on will eventually be tidier.
@jellybaby is right in that running ethernet is a better solution, but knowing when to stop is also a gift (that I basically don't have).