Raspberry Pi 5 • Hacker News Board

Re: Raspberry Pi 5

#351

Post by walteweiss » Thu, Sep 28, 2023, 10:43 AM UTC

blowski wrote: post #264

Brajeshwar wrote: post #19

What is (or would be) the "Tsundoku" equivalent for Raspberry Pi? I started with Pi-Hole a few years back but ended up with a commercial paid DNS resolver. The timeline usually goes like this -- will stumble on another interesting video of Jeff Geerling, then spend the weekend tinkering with the Pi, keeps running, forget about it, found it to be not needed, plugs off and is lying around. [Tsundoku]( https://en.wikipe…

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.

Re: Raspberry Pi 5

#352

Post by throwaway2990 » Thu, Sep 28, 2023, 10:44 AM UTC

badtension wrote: post #331

throwaway2990 wrote: post #314

Earlier quoted context omitted.

Na it’s too slow. I got one and I don’t touch it. I do also have an orange pi 5 and khandas edge 2 pro. Both are miles ahead of the rpi4 and based on specs they are miles ahead of the rpi5.

Are your other microcomputers capable of normal office operation?

100%.

I use them for development. One has ubuntu installed and the other Fedora.

Re: Raspberry Pi 5

#353

Post by numpad0 » Thu, Sep 28, 2023, 10:46 AM UTC

mytailorisrich wrote: post #85

ytch wrote: post #68

Out of curiosity, does 5V/5A USB-C changer common? All of my USB-C Chargers has 5V/3A only.

5V/5A means at least 25W. Plenty of chargers at that level and above on Amazon.

Most 65W chargers are 20V/3A. Standard USB cables are built to carry at most 2-3A, and e-marker cable authentication chips are required for 5A, I believe, because people running 100W on a random USB cable is scary.

Chargers that would do 5V/5A probably do PD 20V/5A as well, = 100W. Or it'll be a non-conforming special Pi PSU of sorts.

Re: Raspberry Pi 5

#354

Post by rebelpixel » Thu, Sep 28, 2023, 10:46 AM UTC

yjftsjthsd-h wrote: post #184

PrivateButts wrote: post #62

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.

This. I've had an always-on Pi 3 since 2016 and after countless random corruption issues from various micro SD cards, I moved to booting them from old USB2 flash drives, first an 8gb then an 16gb one. Never had an issue with them and they've been solid. I only had to mess with the flash drives when I had to do an OS upgrade.

Also, those micro SD cards were always fine after a format/partition and I can still use them in other devices just fine. I've read before that the Pi has a tendency to corrupt micro SD cards through its reader, and IIRC it's related to power issues.

Re: Raspberry Pi 5

#355

Post by chalsprhebaodu » Thu, Sep 28, 2023, 10:49 AM UTC

glimshe wrote: post #348

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.

Re: Raspberry Pi 5

#356

Post by spatular » Thu, Sep 28, 2023, 10:52 AM UTC

TheMode wrote: post #271

futureshock wrote: post #206

I think it’s notable that the chip powering the RP5 is built on a 16nm process. (The RP4 was on 26nm). This is a nearly 10 year old manufacturing process and it’s silly to compare the performance per watt to any Intel or Arm chip on the market today. On such an old node, it’s not surprising that the power draw is so high. Of course an M2 would smoke a RP5 at a much lower power. But the RP5 is 60 bucks!

Is there any high end 5/7nm SBC? Phone chips don't seem to escape the phone market.

Orange Pi 5, "plus" version also has 2gen 1-lane pci-e (M.2 wifi), and 3gen 4-lane pci-e (M.2 SSD) and 2x2.5Gbit ethernet.

8nm, pretty power efficient. I've measured it to run at 0.7A@5V idle and 1.2A@5V with all 8 cores loaded with md5sum /dev/zero; iirc it had 1 ethernet connected, no other periphery. Running on Armbian.

Re: Raspberry Pi 5

#357

Post by d3w4s9 » Thu, Sep 28, 2023, 10:52 AM UTC

peteforde wrote: post #115

wkat4242 wrote: post #91

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.

Only if you are looking for a latest-gen or last gen machine. You can find some old NUCs for cheap, and there are lots of mini PCs or thin clients for around ~100. Yes about twice as expensive but more than twice as powerful (in both processor speed and features). Of course only if you plan to use it as a Linux computer, not for GPIO stuff.

Re: Raspberry Pi 5

#358

Post by alskdj21 » Thu, Sep 28, 2023, 10:55 AM UTC

chalsprhebaodu wrote: post #355

glimshe wrote: post #348

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.

You can check some Beelinks or some other Chinese brands over Amazon. Note that I haven't used any of them tho I'm considering getting one.

Re: Raspberry Pi 5

#359

Post by alskdj21 » Thu, Sep 28, 2023, 10:56 AM UTC

throwaway2990 wrote: post #352

badtension wrote: post #331

Earlier quoted context omitted.

Are your other microcomputers capable of normal office operation?

100%. I use them for development. One has ubuntu installed and the other Fedora.

Interesting. Can you give more details on your work? I've been on the edge lately over picking a desktop, an intel NUC or something like a Pi. Price to performance and power draw is something I'm considering.

Re: Raspberry Pi 5

#360

Post by teamonkey » Thu, Sep 28, 2023, 10:58 AM UTC

dheera wrote: post #207

isoprophlex wrote: post #6

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.

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.

It doesn't need it, on the blog they say that if you use a standard 15W USB supply, it (by default) limits the board's USB output current so it can't cause a power failure at 100% CPU.