Linux

There are also a lot of mini PCs that are comparable in price to a Raspberry Pi 5 once you factor in the cost of a case, SD card, and power supply for the Pi.

I have an old pentium laptop N3520 with 4GB DDR3. I removed everything and put it in a receiver box 1U size. It consumes so little energy that it can run 5-7 hours from its battery (I call it build in USV). Last time I measured 3-7w. Also passiv cooled , no noise. Another machine I use , is with a i7 4770 with 16GB for Proxmox, 7-20w , peak is much higher but rarely used , only on boot and vm startup.

Better than an old laptop, get a mini-pc like thinkcentre tiny. They're more upgradeable, space-efficient, power efficient, have better cooling

I wish there was a convenient place to get these

Rockchip boards are way more efficient than Pis

Add use of gpio to reasons to use pie.

While gpio adaptors are available for pc. The software architecture is not as well rounded and documented.

So for any complex hardware project development. Gpio based SBCs are often essential.

So space, low power and gpio development.

Otherwise yep old laptop or even desktop can be cheaper and more able.

But overall. The wide software support and documentation for hardware connectivity is a bloody good reason to keep pie supported.

I'm setting 2 up to control the hot water and solar dump system on my shared little boat. As I want to link 12v Lifepo4 batt charging with the solar dump and visually impaired control for AC and diesel heating of the water.

Pies really are the best option to play with. While low power and easy to design a unique low vision interface.

Also UK boat safty. Is issuing warning about permanently connected li ion batts on boats. So it is likely setting up a laptop to manage this while not on the boat. Will be banned in the near future.

Only an issue for UK boating but worth considering the risks of leaving laptops to run when not observed.

I now have a stack of Thinkpads laying around. Right next to my two RPis 😂

Right? I made the realization a while ago that refurbished mini PCs are a way better fit for most of my homelab needs.

Sure, if power consumption is your #1 priority then you'd want some ARM solution. But for my use cases, I've found myself fighting with software support and the relatively low computational power of even the newer RPis.

Also, T-series Intel chips (the low power ones) have pretty good idle power consumption and don't spin up the fan too much given their lower power. And a lot of uses cases require sticking a fan and heat sinks on an RPi so you lose the quietness benefit.

Also also, you (still?) need proprietary blobs to use a bunch of the hardware on RPis. You can go full open source on a regular old PC.

Some are talking about power consumption in this thread and I've had similar ideas. Gone are the days where I can run a beefy spec'd desktop in good conscience, it's just such a resource hog. I have a laptop that stays in hibernate mostly. My other idea for a low power consumption home computer was to get a Le Potato single board and pair that with an e-ink monitor (there's some really nice ones out there) which I think was sitting at maaaaybe ~5kwh. I think the more we can limit our power consumption, the better, all that electricty directy translates into coal being burned and additional CO2 being created. I'm no luddite, but it has impacted how I consume media which is now very mindful of the impact watching a few episodes/playing a couple hours of games versus just one or two hours of content on any given day.