Technology @lemmy.world sverit @feddit.de 1y ago

New Raspberry Pi 5 comes with PCIe 2.0 x1 interface and power button

www.raspberrypi.com Raspberry Pi 5 – Raspberry Pi

The everything computer. Optimised. Coming October 2023

Broadcom BCM2712 2.4GHz quad-core 64-bit Arm Cortex-A76 CPU, with cryptography extensions, 512KB per-core L2 caches and a 2MB shared L3 cache
VideoCore VII GPU, supporting OpenGL ES 3.1, Vulkan 1.2
Dual 4Kp60 HDMI® display output with HDR support 4Kp60 HEVC decoder
LPDDR4X-4267 SDRAM (4GB and 8GB SKUs available at launch)
Dual-band 802.11ac Wi-Fi®
Bluetooth 5.0 / Bluetooth Low Energy (BLE)
microSD card slot, with support for high-speed SDR104 mode
2 × USB 3.0 ports, supporting simultaneous 5Gbps operation
2 × USB 2.0 ports
Gigabit Ethernet, with PoE+ support (requires separate PoE+ HAT)
2 × 4-lane MIPI camera/display transceivers
PCIe 2.0 x1 interface for fast peripherals (requires separate M.2 HAT or other adapter)
5V/5A DC power via USB-C, with Power Delivery support
Raspberry Pi standard 40-pin header
Real-time clock (RTC), powered from external battery
Power button

52 comments

I've got to wonder, am I the only one that wishes these things came with PoE support out of the box without needing an addon? I can't even find a competitor that supports PoE without needing an extra PoE HAT.
- Tbh, POE isn't a feature most people need. And it's quite expensive, takes up a lot of room, and generates quite a bit of heat.
  You can get inline POE extractors that spit out 5v usb/jack or 12 jack. I use them quite a lot, and they are much cheaper than PoE hats
  
  Yeah I just hate all the extra clutter the extractor adds. It's really nice to just run some cat 6 to a Pi and call it a day. If I could spend an extra $50 to get a Pi or Pi-like device that came with PoE built in I would in a heartbeat.
- PoE runs on 48V, it’s nontrivial to get that down to levels usable by a microprocessor.
  
  It's not free, but it's not really that hard either. You can even get fancy and use isolated power for some extra safety.
  
  I'd like to see some more specialized versions of these boards. For instance one that trades the MIPI ports (which I have literally never found a use for) for PoE or some other feature that's more useful in a networking centric use case. In many cases I'd even be willing to give up a USB port for that.
  
  It's really not, you have a buck reg on board already, it's just the peripherals that need 5v and for a lot of that you can use linear regs.
- Olimex had a ARM board with POE, if I remember correctly... though I cannot find it atm. Here's an ESP based instead: https://www.olimex.com/Products/IoT/ESP32/ESP32-POE/open-source-hardware
Man I just want to actually be able to buy a Pi 4 at non-scalper rates.
- Theres a bunch available in the US/Canadathis week (all week, for the first time in a very long time). Not available everywhere, but the major Pi distributors have pretty much all had some - all the pi 4 models, too.
  
  The drought has been easing up for a while and has been nearly over in Europe for several months. It looks like it may just about be over in NA too.
  
  If you're in other countries I guess maybe it's still pretty dry.
- Should be soon since the scalpers will be moving on to the 5's.
Looking forward to finding one in a store right around the time the RPi 6 is released.
- rpilocator.com.
  
  Haven’t had trouble finding one in quite some time.
- I didn't think they were that hard to find at the moment, I saw 5 or 6 CanaKits in Best Buy last week.
  
  The 4?
- I preordered on DigiKey.
Out of context, "a power button" is really funny to see advertised as a feature.
Hopefully they can address the stock issues but I'm not holding my breath. Would've also liked to see full-sized HDMI.
- Was the 4 difficult to obtain when it was released? Cause the vendor I’m looking at (digi-key) claims to have about 5,000 in stock right now.
  
  The 4 was impossible to find until, like, four months ago. I've been subscribed to six stock notification services for three years and only got my hands on a Pi 4 this year (and it's not even the model I wanted!). The pandemic was nuts, but things seem to have stabilised.
I think I've personally hit the point where PIs are like phones, there's nothing new that I actually need but a handful of things that looks handy. Never thought I'd be excited about (effectively) a bios battery.
No actual PCIe or M.2 connector on the board, the M.2 hat won't be available at launch, and it appears to block the required(?) coolers from being fitted.
- Not required. And it might block the OFFICIAL cooling case, but it's a Raspberry Pi. There will be a hundred different custom cooling options soon.
  
  The problem is that the M.2 thing still is a HAT, and basically sits about 10mm above the main board, leaving no room for proper active or passive cooling - or at least making it very complicated to achieve. Putting the M.2 slot at the bottom of the main board would have been a good solution that would have avoided a lot of problems.
  
  I still can’t get over the tower cooler available for the Pi 4.
Too bad you'll never get one because we're only making 20 of them!
- They’re commuting to servicing them til 2035 so I’m sure there will be a time when you can grab one.
  
  In 2034
Flawless victory! 🙌

This thing will make a blazing fast encrypted ZFS NAS with the 2 full-speed USB 3 ports and crypto extensions.
- I don’t think Linux supports ZFS on ARM. It’s a bad idea without ECC RAM anyways.
  
  It does and I used to briefly run a ZFS pool on a Pi 4 in 2019. I only abandoned it due to a nasty deadlock bug that I think got resolved sometime ago. Non-ECC RAM shouldn't be significantly worse than using say MDRAID or Btrfs with non-ECC RAM.
Just in time when I was reading about Home Assistant. Either I can get a couple of these to play with, or I just find an older Pi 4 for cheaper (and easier availability).
- FYI, my Pi4 has more than enough cpu and memory to run Home Assistant with a couple hundred devices.
  
  Sounds good, maybe I can start with the Pi 4 then!
- Home Assistant OS won't support this board immediately, though I'd expect a beta to arrive sooner rather than later.

52 comments