this post was submitted on 28 Sep 2023
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  • 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
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[–] orclev@lemmy.world 47 points 1 year ago (3 children)

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.

[–] towerful@programming.dev 34 points 1 year ago (1 children)

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

[–] orclev@lemmy.world 10 points 1 year ago (1 children)

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.

[–] towerful@programming.dev 4 points 1 year ago (1 children)

I know what you mean.
The problem is, actual POE powered computers end up being commercial display drivers or embedded/industrial systems. And that means a significant increase in price.

These devices are often plugged into things that require power. At which point, you can just power it locally. So the added cost and complication of POE isn't worth it.

Chances are, a lot of the things you are trying to do don't need a full SBC and Linux. But I don't know your situation.
Something like this: https://www.dfrobot.com/product-1286.html
Or this.
https://www.robotpark.com/Arduino-Ethernet-Microcontroller-With-PoE-Power-over-Ethernet-V3

If it's something like a screen/touchscreen interface, theres already power there...
But you could use an android TV, there are some that are POE powered, but most displays have a power source these days.

Things like Bluetooth or whatever, you can probably get off-the-shelf extenders or repeaters.

I'd love it if it was more common, gives an easy way to remotely power cycle devices. But the ridiculous extra cost that PoE enabled general purpose devices come with just isn't worth it for me.

[–] orclev@lemmy.world 3 points 1 year ago

Right now the main things I'm using it for is running PiHole and home-assistant, although there's a few other network services I'd like to run on a couple Pi's. So yeah, I can't really use embedded devices for that. I could use something like a NUC, but that's adding significant cost at that point, easily into the $200+ range, where I'm trying to keep it below $150. All my switches already provide PoE, and I need to run ethernet to the device anyway for network connectivity, so adding new PoE devices is literally just a single cable. If I'm powering them a more traditional way I've got to deal with a power brick and finding space in an already crowded UPS, or finding someplace to tack up a PoE extractor in a crowded shelf.

[–] anlumo@lemmy.world 5 points 1 year ago (2 children)

PoE runs on 48V, it’s nontrivial to get that down to levels usable by a microprocessor.

[–] orclev@lemmy.world 6 points 1 year ago (1 children)

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.

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[–] InvertedParallax@lemm.ee 5 points 1 year ago (2 children)

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.

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[–] Cobrachicken@lemmy.world 4 points 1 year ago

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

[–] 332@feddit.nu 26 points 1 year ago (2 children)

Man I just want to actually be able to buy a Pi 4 at non-scalper rates.

[–] ripcord@kbin.social 6 points 1 year ago

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.

[–] hydrashok@sh.itjust.works 24 points 1 year ago (3 children)

Looking forward to finding one in a store right around the time the RPi 6 is released.

[–] LrdThndr@lemmy.world 10 points 1 year ago

rpilocator.com.

Haven’t had trouble finding one in quite some time.

[–] atocci@kbin.social 3 points 1 year ago (9 children)

I didn't think they were that hard to find at the moment, I saw 5 or 6 CanaKits in Best Buy last week.

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[–] TenderfootGungi@lemmy.world 1 points 1 year ago

I preordered on DigiKey.

[–] memphis@sopuli.xyz 17 points 1 year ago

Out of context, "a power button" is really funny to see advertised as a feature.

[–] ijeff@lemdro.id 10 points 1 year ago (1 children)

Hopefully they can address the stock issues but I'm not holding my breath. Would've also liked to see full-sized HDMI.

[–] spacecowboy@sh.itjust.works 1 points 1 year ago (1 children)

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.

[–] clothes@lemmy.world 8 points 1 year ago* (last edited 1 year ago)

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.

[–] RobotToaster@mander.xyz 9 points 1 year ago (2 children)

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.

[–] PeachMan@lemmy.world 2 points 1 year ago (2 children)

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.

[–] Treczoks@lemmy.world 7 points 1 year ago

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.

[–] anlumo@lemmy.world 1 points 1 year ago (1 children)

I still can’t get over the tower cooler available for the Pi 4.

[–] PeachMan@lemmy.world 1 points 1 year ago

It's completely unnecessary and I love it

[–] Bishma@discuss.tchncs.de 9 points 1 year ago (1 children)

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.

[–] avidamoeba@lemmy.ca 5 points 1 year ago (2 children)

Flawless victory! 🙌

This thing will make a blazing fast encrypted ZFS NAS with the 2 full-speed USB 3 ports and crypto extensions.

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[–] NegativeLookBehind@kbin.social 4 points 1 year ago (1 children)

Too bad you'll never get one because we're only making 20 of them!

[–] spacecowboy@sh.itjust.works 1 points 1 year ago (1 children)

They’re commuting to servicing them til 2035 so I’m sure there will be a time when you can grab one.

[–] Jerkface@lemmy.world 3 points 1 year ago
[–] HidingCat@kbin.social 2 points 1 year ago* (last edited 1 year ago) (2 children)

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).

[–] acceptable_pumpkin@lemmy.world 2 points 1 year ago (1 children)

FYI, my Pi4 has more than enough cpu and memory to run Home Assistant with a couple hundred devices.

[–] HidingCat@kbin.social 1 points 1 year ago

Sounds good, maybe I can start with the Pi 4 then!

[–] emli42@lemm.ee 1 points 1 year ago

Home Assistant OS won't support this board immediately, though I'd expect a beta to arrive sooner rather than later.

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