Hacker News Board Hacker News, browsed like a classic message board
Live data from Hacker News

Rasperry Pi 5 Specs and Images Leaked from Element14?

tech-knowhow.com

Post reply on HN
Print view View original

81–90 of 98 posts

Re: Rasperry Pi 5 Specs and Images Leaked from Element14?

#81

Post by tjoff »

tjoff wrote: post #80
eternityforest wrote: post #60

Earlier quoted context omitted.

The microSD slot is one of my favorite features on the Pi. It's so easy to manage configurations, you can write the system to a new card, swap, and even nontechnical people can swap back if needed, and it's all cheap. If it were up to me, Android phones might be doing the same thing, SD as primary storage, with an OS that was optimized for write cycle preservation. It's just so convenient, simple, and obvious. I don'…

I don't care about bandwidth, everything you need should fit in ram anyway. Reliability is the only thing I care about. And you can't have that with sd-cards.

For the Pi5 you could use the m2 hat and an m2. Which seems to come in at a total cost of, guessing, maybe $25 or something.

If that works well (which it should?) that is an absolute nobrainer and game-changer for reability alone.

Re: Rasperry Pi 5 Specs and Images Leaked from Element14?

#82

Post by ako »

beebeepka wrote: post #74
nord73 wrote: post #42

Earlier quoted context omitted.

The MBA uses more modern technology with a completely different price point?

Price difference is only about 50 times.

Price is a consequence, not a cause. If they make the price of the pi 50 times higher, it doesn't mean it no longer needs active cooling. I'm interested in knowing what the technical differences are that impact the cooling, and i understand these differences may come at different costs, and thus different prices. But seeing they're both low energy chips for mobile use cases, and both used for use cases where passive cooling is sufficient, i'm trying to understand why the pi needs active cooling.

Re: Rasperry Pi 5 Specs and Images Leaked from Element14?

#83

Post by eternityforest »

tjoff wrote: post #80
eternityforest wrote: post #60

Earlier quoted context omitted.

The microSD slot is one of my favorite features on the Pi. It's so easy to manage configurations, you can write the system to a new card, swap, and even nontechnical people can swap back if needed, and it's all cheap. If it were up to me, Android phones might be doing the same thing, SD as primary storage, with an OS that was optimized for write cycle preservation. It's just so convenient, simple, and obvious. I don'…

I don't care about bandwidth, everything you need should fit in ram anyway. Reliability is the only thing I care about. And you can't have that with sd-cards.

Are you running Home Assistant or a DVR or both? Or something with Chromium as digital signage, without putting all it's profile folder crap in RAM?

I've never had a reliability issue with SD cards, I've even seen other people set up stuff on no name cards that run for years, but I keep seeing posts about them on HA boards.

Plus now there are industrial-ish microSD cards for similar or less cost than other kinds of storage.

Re: Rasperry Pi 5 Specs and Images Leaked from Element14?

#84

Post by tjoff »

eternityforest wrote: post #83
tjoff wrote: post #80

Earlier quoted context omitted.

I don't care about bandwidth, everything you need should fit in ram anyway. Reliability is the only thing I care about. And you can't have that with sd-cards.

Are you running Home Assistant or a DVR or both? Or something with Chromium as digital signage, without putting all it's profile folder crap in RAM? I've never had a reliability issue with SD cards, I've even seen other people set up stuff on no name cards that run for years, but I keep seeing posts about them on HA boards. Plus now there are industrial-ish microSD cards for similar or less cost than other kinds of s…

If you treat it as read-only, then yes, sd-cards work fine. But setting that up can be a hassle depending on the project, and completely out of character for what the raspberry is.

But that is what I do, because you can't use the Pi reliably if you don't (or if you fiddle with external storage). And that is a serious limitation and something that the majority of Pi users don't. And thus endless suffering. It is not in the same ballpark as "easy to manage configuration".

And many applications require that you write to storage at least some of the time. Such as HA. And in turn you must use external storage.

Re: Rasperry Pi 5 Specs and Images Leaked from Element14?

#86

Post by ltbarcly3 »

erickj wrote: post #68
ltbarcly3 wrote: post #57

It quotes usb-c 5v@5A. I don't think I've ever seen a device that could provide 5V@5A over usb, is this a thing? It seems like this is going to really limit the flexibility of powering this.

USB-C form factor plus USB-PD (power delivery) is rated up to 100W. 5V @5amps is the base power level for PD https://www.asme.org/topics-resources/content/explore-the-ba...

Maybe the spec allows that pairing (5V@5A) to exist, but it's not implemented in any power supply! Total wattage is irrelevant if the RP5 only accepts 5V. Feel free to link to one if one exists. For sure virtually no PD power supplies support it.

Example: https://www.amazon.com/AmazonBasics-One-Port-Charger-Laptops...

Specs: PD 3.0 (USB-C Port): 5V ⎓ 3A / 9V ⎓ 3A / 12V ⎓ 3A / 15V ⎓ 3A /20V ⎓ 3.25A (Up to 65W)

There are tons and tons of examples like this.

Example: https://www.anker.com/products/a2341

From what I can tell this is a top of the line Anker GaN charger which can produce 140W. However, if you look in the manual: 5.0V 3.0A / 9.0V 3.0A / 15.0V 3.0A / 20.0V 5.0A / 28.0V 5.0A (140.0W Max)

The only power supply I have seen that can do this rediculous 5A at 5V is the one being released for the RP5, https://www.sparkfun.com/products/23584 You can see from the picture it actually outputs a nonstandard 5.1V@5A, suggesting that the voltage drop due to the cable actually causes problems powering the RP5 so they built a 'hot' power supply to try to correct for it. This seems like a pretty big design flaw, why not just design the RP5 so it can negotiate a higher voltage on PD? It looks like it has room for a couple mosfets to implement this.

Re: Rasperry Pi 5 Specs and Images Leaked from Element14?

#87

Post by ltbarcly3 »

forty wrote: post #77
yjftsjthsd-h wrote: post #64

Earlier quoted context omitted.

OS support, yes; the ARM ecosystem is overall a trash fire in terms of being able to use mainline Linux. Even Pis don't actually have a good track record with actual mainline Linux, but they're popular enough that their downstream patches are actually maintained so you can keep using current kernels; most boards get whatever buggy kernel the vendor drops when it ships and then nothing. Now AIUI Orange Pis do actually…

I have one orange pi board where I messed a bit with the OS/kernel. I think the kernel patches where copy of a competitor similar board with the same SoC (if I remember correctly a friendlyelec board) where the fact that it was copy pasting showed in places where they forgot to replace the name of the board...

https://www.phoronix.com/news/Orange-Pi-5-DT-Mainline-Patche...

I'm hopeful the effort to get the rk3588 fully supported in the kernel will be successful. I think you can already get it working with a vanilla kernel but you lose hdmi. Far from ideal but great progress so far.

Re: Rasperry Pi 5 Specs and Images Leaked from Element14?

#88

Post by wpm »

smashed wrote: post #44
wpm wrote: post #16

I'll never understand putting half the ports on one side of the board and half the ports on another. There is no neat way of running a Pi either headless or plugged into a display and keyboard/mouse that doesn't involve an absolute clusterf** of cables going every which way on your desk. I get that the board is small, but, put the most commonly used ports on one edge, and extra/accessory ports on another. Power, netw…

A raspberry pi has literally more ports than your average laptop, in a much much smaller PCB footprint. Of course the port layout is going to be a fiasco. It's just not physically possible any other way, unless you start shoving everything into a single USB-C port and force the user into using adapters and docks, at which point you'd just be removing actual ports like laptop makers have been doing for the past years.

I never asked for more or different ports. I asked for a more reasonable layout that doesn't result in a cable squid on my desk to hook it up to power, keyboard/mouse, and display.

Obviously port layout is harder than just "just move it" but aside from the physical board foot print, mounting hole locations, and GPIO, there doesn't seem to be some holy thou-shalt-not directive that ports can be moved around, considering the USB and Ethernet ports have flip flopped a few times, the ports change shape, get removed, etc. So, move the most commonly used ports next to the required ones, and put them all on one side of the board so this can actually be neatly slotted underneath a monitor or on a shelf or rack mounted without having to buy a bunch of right angle adapters, PoE hats and switches, or a $50 Argon One that moves the power and display ports to a more convenient location on the back of the Pi by means of a PCB.

Re: Rasperry Pi 5 Specs and Images Leaked from Element14?

#89

Post by justin66 »

ako wrote: post #82
beebeepka wrote: post #74

Earlier quoted context omitted.

Price difference is only about 50 times.

Price is a consequence, not a cause. If they make the price of the pi 50 times higher, it doesn't mean it no longer needs active cooling. I'm interested in knowing what the technical differences are that impact the cooling, and i understand these differences may come at different costs, and thus different prices. But seeing they're both low energy chips for mobile use cases, and both used for use cases where passive…

For starters, the BCM2712 is manufactured on a 16nm process. The M2 is on a 5nm process.

Re: Rasperry Pi 5 Specs and Images Leaked from Element14?

#90

Post by undersuit »

keikobadthebad wrote: post #79
undersuit wrote: post #27

Earlier quoted context omitted.

Yeah, but your the tiny minority that does want eMMC but not the Compute Module. I like my Libre Le Potato for eMMC in the RPi3 format.

Somebody's buying all those pi-alikes from China with emmc, and they're not buying sd-only boards like rpi.

Are they using eMMC? Or is it an unused feature most of the time?

I'm arguing why the mainstream option doesn't have the obscure technical feature. You what also sells like hotcakes? Raspberry Pi Compute Modules with eMMC.

Post reply on HN