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

Raspberry Pi 5: available now

raspberrypi.com

Post reply on HN
Print view View original

131–140 of 217 posts

Re: Raspberry Pi 5: available now

#131

Post by mastax »

They've been releasing videos which talk about various aspects of the Pi 5 design in some detail, and I've found them really interesting: https://www.youtube.com/@raspberrypi/videos

I was surprised by just how much of the hardware and software of the Pi 5 was custom designed by (or for) the Raspberry Pi org. Custom MIPI implementation, custom IO chip, custom image signal processor, custom camera drivers (w/libcamera), custom video drivers (w/Mesa+DRM). They were able to cut out pretty much all of the Broadcom firmware and the VideoCore is no longer handling the bootup process.

Re: Raspberry Pi 5: available now

#132

Post by deepspace »

joshstrange wrote: post #29

And they are promptly out of stock, I assume. I've owned every Raspberry Pi since the first one but I think the 4 was my last one. They are fun to tinker with with but not great for long-term use in my experience. I felt like I had to babysit it way too often, it absolutely wasn't a "setup an forgot" device, again in my experience. It'd be rock solid for 2-3 months then randomly stop working, rinse and repeat. A litt…

Absolutely. I dumped most of my PIs for older mini-PCs and NUCs. Throw in a bit more RAM and run Proxmox on it. Way better stability, functionality, and manageability.

If you have 3 of those, you can run a Proxmox cluster, which is a godsend for applications like Home Assistant, which require stability and uptime.

The only time I use a Pi these days is when I need to interface with something via the GPIO pins. Netbooting increases the reliability vastly.

Re: Raspberry Pi 5: available now

#134

Post by accrual »

cptcobalt wrote: post #98
accrual wrote: post #78

Earlier quoted context omitted.

Anecdata: I have a netbook from around 2009 with an Atom processor. Default clock is 1.6 GHz but I ran it at 800 MHz. With an SSD inside, it sips power and ran 24/7 basic web services for years.

no actual data here: no power (Watts) provided for the netbook to enable a fair comparison. It's great that it did not become ewaste, and a computer you have is better than one you don't have, but people likely shouldn't pick up old netbooks over something like a pi.

I agree. The machine is remote so I don't have it on hand, but I believe the stock AC adapter is rated for 40 watts according to a search online. However, I haven't recently plugged it into my Kill-A-Watt to see the actual draw, especially since I run it at half frequency. I'll bring it with me next time I'm out there for an upgrade to see what it actually pulls. :)

Re: Raspberry Pi 5: available now

#135

Post by magixx »

musha68k wrote: post #114

Can anyone recommend a forward looking “JBOD case” holding the rpi5 that maybe has room for ample cooling for 24/7 usage? Basically for something like a “DIY Asustor” ++ build? Any 2c much appreciated.

It's unfortunate but unless you're willing to spend quite a bit of money (or are willing to forgo compactness) these are hard to find especially for 3.5" drives.

Radxa did have the Taco and Mediasonic does make compact 4/8 bay JBODs bur these are USB only.

There are also various NVME to SATA/SAS adapters but these mostly make use of port multipliers and speed won't be amazing. You'll probably also want some SATA backplanes to make wiring less nightmarish but these are annoying to source at a reasonable price.

My latest idea I had for something semi compact and performant was to try and use a USB4 SSD enclosure with adapters to connect a full size PCIE card. You'd then get a Thunderbolt DAS theoretically.

Re: Raspberry Pi 5: available now

#136

Post by dragontamer »

tuatoru wrote: post #126
dragontamer wrote: post #103

Earlier quoted context omitted.

Pico has its own problems: 1. VQFN package is a pain to deal with. You can't use a soldering iron, so its reflow-only and therefore requires hotplate + reflow hot air to deal with. Due to the difficulty of rework, you likely can't use the soldering iron+solder wick technique to fix solder bridges, for example... and therefore also require a soldering stencil to work with (gotta deposit the correct amount of solder-pa…

Yeah, that sleep current is inexcusable for an MCU. So is the lack of onboard flash. Weird design all around.

The "killer-app" for the RP2040 is some kind of larger display controller IMO.

Displays use tons of power anyway, so 20mA power consumption of RP2040 is fine. And you need 264kB of SRAM for a good frame-buffer, and dual-core means one core can be dedicated for the display and the 2nd core can do all the other functions of your application.

Graphics are likely too large to fit on a typical on-board Flash, so you'll need QSPI (or larger) amounts of Flash anyway, so the weird bootup / requirement of Flash is made redundant.

---------

But general purpose use of RP2040? Uhh... no? Honestly, the RP2040 feels very much like a cut-down microprocessor in its design.

I guess RP2040 has the advantages of Micropython and more than enough SRAM to run larger sets of Micropython code for beginners... which is an advantage for some folk.

---------

I kind of wish that the bottom-tier of microprocessors became more commonplace for hobbyists. Full Linux 6.x kernels and 128MB with a variety of ADCs / Comparators on the SAM9x60 (ARMv5 Microprocessor with on-board DDR2 with ~50mA power usage at downclocked 200MHz)

Why run microPython? Just run Python 3 and G++.

Bonus points: idles at 2.1mA and sleeps at 200uA, so this Linux-capable microprocessor is comparable to the RP2040's idle/sleep specs. (I'm cheating though: DDR2 uses a substantial amount of power and I'm only counting CPU-power. But it still goes to show how absurdly high-power the RP2040 is in practice).

Re: Raspberry Pi 5: available now

#137

Post by fanf2 »

alex_john_m wrote: post #84

I checked all Eastern Europe retailers on their website and none of them seem to be having the board in stock. All of them are either taking preorders or say they will start deliveries in late december or early january. The only retailers that seem to have any stock at all are in the UK and buying from there is a nightmare due to brexit (assuming the boards ever arrive at all - they have a nasty habbit of taking peop…

I guess the delays are due to regulatory paperwork, as the blog post suggested.

Re: Raspberry Pi 5: available now

#139

Post by turtlebits »

benterix wrote: post #63

I'm sorry but it got too expensive and hence lost its main advantage. These days I use second-hand desktop mini-pcs that cost minimally more than the full Rpi set (charger, CD card, case, SBC) but are much more powerful. For anything involving WiFi/IoT, I use ESP32 - far less expensive and very easy to use. And for cases where WiFi is not needed, we have tons of interesting solutions and few reasons to use the Pi.

The main advantage of the Pi is the ecosystem and availability/consistency, not the price.

The hardware is known and well documented has the best OS support.

If I have issues, I can just move the SD card to another one, or just reflash another SD with 0 downtime or fuss.

Re: Raspberry Pi 5: available now

#140

Post by moffkalast »

tuatoru wrote: post #126
dragontamer wrote: post #103

Earlier quoted context omitted.

Pico has its own problems: 1. VQFN package is a pain to deal with. You can't use a soldering iron, so its reflow-only and therefore requires hotplate + reflow hot air to deal with. Due to the difficulty of rework, you likely can't use the soldering iron+solder wick technique to fix solder bridges, for example... and therefore also require a soldering stencil to work with (gotta deposit the correct amount of solder-pa…

Yeah, that sleep current is inexcusable for an MCU. So is the lack of onboard flash. Weird design all around.

It makes sense, if the Pi Foundation is known for anything it's for giving zero thought to power management and their over-reliance on SD cards for flash memory.
Post reply on HN