Questions tagged [poe]

For questions regarding the use of Power Over Ethernet (IEEE802.3) on the Raspberry Pi.

48 questions
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RPI 4 - POE enabled but requires hat?

I'm confused about the marketing on the new RPI 4. Here in the tech specs it says "Power over Ethernet (PoE) enabled (requires separate PoE HAT)". What does it mean it's enabled, but it needs a separate hat. The RPI 3 could be powered with POE…
dave k
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Is it possible to use an additional HAT with the Raspberry Pi PoE HAT

I recently got a Raspberry Pi 3 Model B+ and the official Raspberry Pi PoE HAT. It is powering it from my switch fine but I am wondering if it is possible to also use an additional HAT with it? The PoE HAT seem to allow pins to pass all the way…
njh
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PoE hat fan activation on OS other than Raspbian

I'm aware that the only officially supported OS that the PoE hat works on is Raspbian. I can confirm that both my hats work, and that the fan does switch on and off if I have Raspbian installed on the SD card the Pi is booting from. Currently,…
Larnu
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7
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Comparison between different PoE HATs

There are now multiple PoE HATs available: Official Raspberry Pi PoE HAT LoveRPi PoE HAT PiSupply Pi PoE Switch HAT I need to choose which one to use for my project. I already know from reading the product pages in detail that: The Official HAT…
nh2
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how does the Raspberry Pi PoE shield work?

I would like to do PoE for some Pies, but I dont like the real-estate the PoE hat takes up. what exactly is required for the PoE to work? what pins must I use on the raspberry PI, and what does the PoE hat do? An electronic schematic would be nice.…
j0h
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Raspberry Pi4B RJ45 etchings

What does the etched (vs non-etched) RJ45 jack indicate? I have 3 of the 2GB versions; only one works in the remote location powered by PoE. The two that do NOT work - the newest and oldest of the 3 - have an etched RJ45 jack. The one that does work…
SE-tinker
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Under-voltage problems when using the new PoE hat

I'm experiencing some issues with the new PoE hat when using my NETGEAR gs108pe PoE switch. Basically when I use my raspberry pi 3B+ with only my HDMI monitor and a USB serial converter attached (NOTE: it gives the same result without anything…
Linus
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Power and Internet over a 15m distance

I'm planning to put my pi in a bird box at the end of the garden. The distance is 15m away from the nearest power source and the router. What is the best way of getting power and Internet to it? Can this be done by PoE? Just thinking about…
4
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1 answer

Does the PoE hat fit in the Raspberry Pi case?

Does the Raspberry PoE hat fit inside the Raspberry Pi 3 Case? And it might be too soon. But would the same PoE hat, on top of a Raspberry Pi 4, inside a Raspberry Pi 4 Case also fit? And by "fit" I mean will the cover go on top of it as it…
gh0st
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Is it viable to run a cluster of Pis on PoE?

I’m thinking of experimenting with clustering RPis, but the thought of that mess of equipment (switch + multi-port USB charger) and cables is a bit of a turn-off. Does anyone know if there are any limitations to running a cluster of Pis with…
Ryan Lue
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POE Switch to Power the PI?

Sorry if this a repeated, I couldnt find anything similar. Most threads seems to be modifying the PI or splitting Ethernet. Will this setup work for powering the PI? 1) Juniper EC-2200 POE Switch…
user48871
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1 answer

Can RPi 4 deliver more amps on the 5 volt rail than RPi 3 powered over PoE?

I have a setup using a Raspberry Pi 3B. I use the PoE hat on top and I power the entire setup over PoE from a Unifi switch. The setup has quite a lot of peripherals that need power and I use the 5 volt rail of the Raspberry to provide the…
www.jensolsson.se
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Raspberry Pi4 vs 4B--synonymous?

I am embarking on a cluster project using PoE hat. PoE hat is compatible with RPI4B. Vendor is selling "Raspberry Pi4." https://en.wikipedia.org/wiki/Raspberry_Pi#Specifications shows only 4B, so I assume they're synonymous, and I'm safe to go…
Bob Hiltner
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POE without the Rpi Hat?

I have a raspberry pi 3b+ with the 4 PoE connectors. How can I power the Pi with Ethernet without buying the PoE Hat? Is there a link to a schematic for the PoE hat? I need a different board on top of my Pi. Thanks.
jrcichra
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Is it possible to power a 3b+ and the display with the poe hat?

For a project I would like to power the 3b+ and the official 7” touch display using the official POE hat. I figured that I could connect the display board to the pi via the jumper wires to 5v and GND as usual, and power it the other way round. Would…
Cortado
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