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Raspberry Pi 5

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Re: Raspberry Pi 5

#361

A NVMe compatible M.2 M Key connector (like the Rock 5 Model B [0] has) would have been really nice. I'm starting to accumulate old but good, yet small in storage space terms NVMe's which I'm no longer needing, but which would be perfect for a Raspi. Even if the PCIe bus were an older generation and not as performant as the NVMe. The microSD card slot is really great to have, to get up-and-running, but once it's clea…

I recommend booting Pi 4 and Pi 400 from external (USB) NVMe in an enclosure.

Re: Raspberry Pi 5

#362

A NVMe compatible M.2 M Key connector (like the Rock 5 Model B [0] has) would have been really nice. I'm starting to accumulate old but good, yet small in storage space terms NVMe's which I'm no longer needing, but which would be perfect for a Raspi. Even if the PCIe bus were an older generation and not as performant as the NVMe. The microSD card slot is really great to have, to get up-and-running, but once it's clea…

Same with orange pi5 and 5b. Having an option for a faster and reliable storage is amazing. SD cards are great when you prototype or need just enough storage to netboot a device, but past that it is limiting.

Re: Raspberry Pi 5

#363

Rasbperry Pis are losing their competitive edge for non-embedded applications to sub $150 mini PCs, which support Linux/Windows and will come with enclosure, NVMe slot, power button etc. The mini PCs are also generally much faster.

Where can I find these mini PCs? I am trying to find hardware for an upcoming project and I’m considering the Pi but would love to see some alternatives.

I’ve purchased a few HP Elitedesk 800 G3 Minis (refurbished) for about $125 on Amazon. They even come with Windows 10 if you’re looking for that. They’re a deal considering the Pi’s extra expenses like power, case, storage, etc.

Re: Raspberry Pi 5

#364

TBH the thing I hate most about this category of SBC is the reliance on SD cards. They are both too unreliable to trust and so slow that they often bottleneck the SBC. Buying them is often a crap shoot too, I've purchased cards batches of cards from the supposed reputable manufacturers that were all over the board when benchmarked, and rarely did they hit the claimed speed spec. I would love if there was an alternati…

You can take a look at orange pi 5 plus. It has M.2 for WiFi and M.2 for SSD, both PCI-E. It's in $100+ category though.

Re: Raspberry Pi 5

#365
post #207

Earlier quoted context omitted.

The worst part about it is they require a nonstandard, USB-C standard-violating proprietary power brick that does 5V5A. None of your 100W Anker or Apple power bricks will supply this. They'll do 12V3A, 12V5A, 20V5A, but not 5V5A. Yet another piece of nonstandard USB-C equipment.

> When using a standard 5V, 3A (15W) USB-C power adapter with Raspberry Pi 5, by default we must limit downstream USB current to 600mA to ensure that we have sufficient margin to support these workloads. This is lower than the 1.2A limit on Raspberry Pi 4, though generally still sufficient to drive mice, keyboards, and other low‑power peripherals. This is also very uncool, since powering it through the GPIO header wi…

The blog post says you can override it.

Re: Raspberry Pi 5

#366

Earlier quoted context omitted.

Yeah my intel atom NUCs run at 5W idle and 10W load and they're a ton faster than a pi 4. Probably a pi 5 too. It's not very impressive. And that's with a real SSD.

NUCs cost hundreds of dollars, though. And they are probably 8x bigger, if you start stacking Pis.

I hadn’t heard of these N100 systems before, but in a minute’s worth of searching I found this:

https://www.amazon.com/Beelink-Intel-N100-Computer-Desktop-D...

Faster processor, 16GB RAM, 500GB NVME SSD, with case. $165! That’s damn impressive, considering the RPi5 with 8GB RAM is suggested to sell for $80 (good luck getting it for that little). And Amazon can get it to me in two days.

Yeah it’s definitely bigger, but I wasn’t expecting these systems to be so cheap.

Re: Raspberry Pi 5

#367

Earlier quoted context omitted.

I have about 10 unused Raspberry Pis, so I collected unused monitors as well, and now run a mini code club in my local school. The school's laptops are all locked down to the point that running Python on them that this was the easiest way to provide a Python dev environment.

Why does everyone choose Python for that? Maybe a weird question for HN, but I still have no idea.

In my case at least, it's because Python has a strong ecosystem. Everybody's heard of it - parents, kids, and teachers. There are lots of good kid-friendly education materials.

Of course, that begs the question "how did that ecosystem develop in the first place?", but I can't answer that.

Re: Raspberry Pi 5

#368

TBH the thing I hate most about this category of SBC is the reliance on SD cards. They are both too unreliable to trust and so slow that they often bottleneck the SBC. Buying them is often a crap shoot too, I've purchased cards batches of cards from the supposed reputable manufacturers that were all over the board when benchmarked, and rarely did they hit the claimed speed spec. I would love if there was an alternati…

FWIW, I boot my Pis almost exclusively from USB. Not that that's... great in terms of speed or reliability, but it's something.

I have a Pi 4 and Pi 400 and boot them from NVMe (via USB).

Combined with a portable LCD, it's a low-power dev workstation on a battery. ^_^

Re: Raspberry Pi 5

#369

Earlier quoted context omitted.

I may be completely off base here, but maybe the rpi wasn't the best tool for the project then? What was it, if I may ask?

I mean, I'd be curious what you'd have suggested! We needed it to be small, low power, low heat, provide hardware level access to a camera module, be ethernet accessible. Oh, and under $100 including a fixed M-mount lens. At the time, it didn't seem like rolling our own hardware would have been faster. I would argue - given we succeeded at sub 1ms syncronization - that the Pi was close to the perfect tool. It just wo…

Well, if you absolutely needed to use that specific rpi camera module (if I understood your other comment correctly) and you didn't have time to reverse engineer it, then rpi was probably the best option, sure. It just feels weird to assume that, or that every single module needed to be connected by ethernet. Rpi and low power in the same sentence also feels weird. I'd have tried to build little devices out of STM32. But again, I barely know anything about your project.

Re: Raspberry Pi 5

#370

I'm happy that they're upgrading the pi, but it's not exactly lightweight computing in terms of power (they recommend a 27W PSU) or performance/watt (see: your cell phone) To me the charm of the raspi ecosystem was always in giving you a very low power, "always on, almost no power draw" linux environment. Oh well, I guess there's always the older versions or the zero for that.

Did you read the blog post? :) "Raspberry Pi 5 consumes significantly less power, and runs significantly cooler, than Raspberry Pi 4 when running an identical workload. However, the much higher performance ceiling means that for the most intensive workloads, and in particular for pathological “power virus” workloads, peak power consumption increases to around 12W, versus 8W for Raspberry Pi 4."

Is there a way to limit the processor power so that it never exceeds a certain threshold? Because some people might be okay with slower processor if it means less power usage.
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