Linux

Rockchip boards are way more efficient than Pis

The only caveat here is the fire-hazard non-removable lithium batteries.

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.

Low power and arm architecture are big differentiators between Pi and laptops.

I totally agree recycle laptops where possible, but they're generally noisier and less energy efficient plus the battery degrades over time and is a fire risk.

They're not necessairly a good fit for always-on server or service type uses comparef to a small board like Raspberry Pi. But a cheap or free second hand laptop is definitely good for tweaking, testing and trying our projects.

It's low power that is still making arm small computers popular. It's impossible to get a pc down into the 2-5 Watt power consumption range and over time it's the electrical costs that add up. I would suggest the RPI5 is the thing to get because it's expensive for what it is and more performance is available from other options supported by armbian.

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

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.

l a p p i e s

The power constraints are more important to most than the size constraints honestly.

raspberries were viable while those were cheap. I think I got a 3b (plus?) in pre-deficit years for like $25 second-hand AND I got some shitty case AND a microSD card AND it could run off of a somewhat normal USB phone charger. so using those instead of a 10 year old decommissioned desktop was an awesome value proposition.

nowadays, those devices are encroaching on trip-digits territory and the power adapter is like $30. the computing power you can buy for a third of that designates raspberries exclusively for niche use cases where footprint and power consumption are primary considerations.

not to mention fake Jason Statham just rubs me the wrong way, like all them "visionaries". he makes this sound like he's the head of Feed Africa or something, on a noble mission to save humanity and whatnot.

You lose the I/O and power efficiency is no comparison. You can get better power efficiency and sometimes some I/O with an old router and OpenWRT, but you'll be in the class of a Beagle Bone and a much harder learning curve. I've never managed to get a sensor or peripheral working on some old laptop's SPI or I2C buses like how easy it is on a Rπ.

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.

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.