Review: Raspberry Pi's new PoE+ HAT
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День томуThe new PoE+ HAT has some issues, like using almost twice as much power for its own operation as the original PoE HAT. It does supply more power to the Raspberry Pi, but at least for the Pi 3 model B+ and 4 model B, does that even matter?
Mentioned in this video:
- Martin Rowan's PoE+ HAT review: www.martinrowan.co.uk/2021/06...
- Controlling PoE HAT Fan Speeds: www.jeffgeerling.com/blog/202...
- My 3D-printed Pi Rack: • Raspberry Pi Rack - 6 ...
Equipment used in this video (some links are affiliate links):
- PoE HAT: www.raspberrypi.org/products/...
- PoE+ HAT: www.raspberrypi.org/products/...
- Netgear 5-port PoE Switch: amzn.to/35rm2Um
- HP J9774A 8-port PoE+ Switch: amzn.to/3vraiMk
- Echogear 20U Network Rack: amzn.to/3zwV5wx
Support me on Patreon: / geerlingguy
Sponsor me on GitHub: github.com/sponsors/geerlingguy
#RaspberryPi #PoE #Networking
Contents:
00:00 - tl;dw
00:53 - Thanks to GitHub sponsors!
01:24 - Original PoE HAT Problems
02:17 - PoE 802.3af is insufficient
03:34 - New PoE+ HAT
04:35 - PoE+ HAT Walkthrough
05:54 - Camera connector is screwed
06:45 - Other annoyances
07:24 - Fan comparison
08:30 - Power consumption
09:51 - Stress test
10:51 - USB-C power and coil whine
12:08 - Final verdict
13:28 - Clarification from Raspberry Pi
15:16 - Thanks and outtakes
@fiveangle 2 роки тому
This is literally the *FIRST* video I’ve seen any mention of Phoronix and Michael’s tireless work, after so many years and years. Thank you for bringing more attention to this critical world resource ! ♥️
@fiveangle 2 роки тому
And BTW: it very much is surely back feeding 60v out the Ethernet interface but since 802.3u specifies common mode rejection requirements higher than this, it shouldn’t damage any upstream components. But still: it seems more a first-timer JLPCB tinkerer design than an official corporate offering. So bad…
@alexart8207 2 роки тому
@@fiveangle what are the LEDs in USB? ukposts.info/have/v-deo/kIphbIeCeJhz0Ik.html
@lorenbufanu1639 2 роки тому
That's not a magnet on the transformer, that's a ferrite core!🙂
@JeffGeerling 2 роки тому
I shall be more careful with my words next time :)
@This_is_my_real_name 2 роки тому
Thanks for saving me the trouble of pointing this out. I'll now try to get my teeth to stop grating. )
@This_is_my_real_name 2 роки тому
@asdrubale bisanzio -- No, the primary becomes a magnet. Calling the ferrite core a "magnet" is like calling the "keeper" placed across the old "horseshoe magnet" a "magnet" since it _conducts_ magnetism. Essentially, calling a magnetic conductor a magnet is like calling the copper wiring in your wall a "generator" or calling the battery cable in your radio (remember radios?) a "battery" since it _conducts_ power from the battery. Or, like calling the subway train "my job" because it takes you to work. N.B.: This does not apply if you happen to be the motorman!
@randomnoobpt 2 роки тому
Pi Foundation: "We'll replace some ICs to improve efficiency" Efficiency: _nearly 2x worse_
@bradley3549 2 роки тому
I think it would be interesting to see the efficiency compared to the original hat when both are plugged into a POE switch instead of a POE+ switch. It sounds like the higher voltage of POE+ is a factor.
@ar-videos 2 роки тому
@@bradley3549 POE AND POE+ use the same nominal 48v.
@bradley3549 2 роки тому
@@ar-videos 48v would be in spec for Poe, but below spec for Poe+.
@valkaielod 2 роки тому
@@bradley3549 Higher voltage means fewer Amps and that actually means lower losses on the cable. Something's fishy about the new hat.
@ronaldglider 2 роки тому
The German language has the appropriate word for such cases: verschlimmbessern
@DirkDulfer 2 роки тому
Another quality video, thanks for that. I had big expectations for this new POE hat and am genuinly surprised that the board comes with these really obvious flaws. One would expect that these would pop up during testing.
@phpnotasp 2 роки тому
"Don't ad-hoc a sentence in the middle of a pre-written sentence"... oh how badly I can relate to that statement. Glad to know I'm not the only one suffering there.
@chicken_punk_pie 2 роки тому
Ad-lib and ad-hoc are two pretty different things
@onlyeyeno 2 роки тому
@@chicken_punk_pie True they do have different connotations, but I'm not totally mistaken they are "in true meaning" quite closely related. And an ad-lib can also be "an Ad-Hoc action". E.g. if You, while reading Your script, notice that You have written something totally wrong, then You might try to correct it "Ad-Hoc" by "Ad-Libing". And most "Ad Libs" are intrinsically done "Ad hoc", are they not ? English is (in my opinion) a "curious language" that can be used in all so many different ways while in essence expressing the very same thing. Best regards.
@_vicary 2 роки тому
A PSU consumes more than the unit it is powering, interesting.
@greenerell484 Рік тому
hmmmm
@JPToto 2 роки тому
Top notch investigating, Jeff. Well done as always!!
@MikeKasprzak 2 роки тому
Thanks for the heads up. I'm about to rig up something similar, and I've been curious if I should wait for the POE+ hat or just grab POE's. I see now I'll need to figure out my power requirements, and capability of my switch.
@-someone-. 2 роки тому
After watching this, I’m definitely waiting for the next revision. My rack has 4x pi’s. 2 running pihole (doesn’t get hotter than 37c, so no need for a fan) the other 2 run servers so cooling by heatsink is perfect, I really want fans to become more silent. Thx Jeff
@gustersongusterson4120 2 роки тому
Great video! I always assumed that POE would not be very efficient with power use at either the router or client device, but I"m looking forward to your video about it.
@AndrewGillard 2 роки тому
With PoE using a high enough voltage on the cable, things like voltage drop and associated power dissipation can be minimised, so it comes down to the efficiency of the voltage conversion circuit of the power sink/client device. I could see it being theoretically plausible for a PoE switch's bigger, maybe-higher-quality AC-to-DC adapter to have sufficiently improved efficiency compared to the tiny, as-cheap-as-possible power bricks supplied with random consumer devices, that it works out _more_ efficient to use PoE. However I've not run the numbers, nor experimented with it myself, so this is just an idea :)
@AngryMarkFPV 2 роки тому
Great vid as per usual, always love to hang around for the muck ups at the end haha
@mrexplore148 2 роки тому
Thanks, Jeff for the great video and the links to my blog. Our experiences are very similar and we share the same concerns and reservations. I'm pleased you managed to get an email response from the Pi Team, not something I managed to get, accept an acknowledgement that I was going to post the articles I have, The claim that powering a Pi from USB-C with the PoE+ HAT installed is an unsupported use case, sounds a lot like them just finding an excuse for the design issue. I like you just wish they'd engage with the community more to help iron out these issues prior to release, they must know they have a large number of willing supporters.
@NDferro 2 роки тому
It's almost as Raspberry pi foundation doesn't test there products before selling them
@ronaldglider 2 роки тому
Great video, thanks for the info. Surprising 'deficiencies' in both designs... I still have the question: where are the root FS's on your cluster?
@IanSebryk 2 роки тому
I was literally about to buy this in another tab when I spotted this vid. thank you.
@mecook 2 роки тому
The out takes at the end are hilarious. Thanks so much for sharing those with us.
@JeffGeerling 2 роки тому
My pleasure!
@frauseo 2 роки тому
Jeff… your blobs at the end are just hilarious! You crack me every video! Enjoing it! And also thanks to redshirt Jeff for his hard work 😎
@zambonidriver42 2 роки тому
Outtakes! Woohoo!
@Danish_127 2 роки тому
Also, the new hat doesn't have a cutout to thread the camera cable through, making PoE webcams a little more difficult. I found it odd that there hasn't been an official case, or third party one that I can find that neatly support the hat and camera.
@kevindawe911 Рік тому
Nice vid Jeff, very thoughtful and inciteful.
@alehaj2340 Рік тому
Nice content. But the bloopers at the end are the best :D
@MrWachtus 2 роки тому
those bloopers at the end are killing me :D
@Penguin24766 2 роки тому
I stumbled across your channel, I must say it is pretty catchy ^^ nice work !
@MarianoBillinghurst 2 роки тому
Loved the compilations of errors at the end
@seangraves3509 2 роки тому
Hey Jeff, your PoE+ fan was pretty quiet. I just fitted mine last weekend which sits in an open case. But what I was not expecting was the mosquito sound every 20 seconds then quiet 10-15 seconds and then another 20 seconds of a swarm of mosquitoes - continuously all night long. In the daytime I didn't really notice it but this little chap sits behind a monitor in the bedroom and during the night OMG no sleep that night at all ... So the next day that hat had to be removed :-( Also another gotcha was at the moment there does not seem to be any passthrough GPIO headers for the POE+ hat unlike the old PoE HAT. Due to the POE header is not passthrough. I think all you can do at the moment is to get old POE Long Headers and hack the 4 POE ones down to fit. Btw another great video :-)
@marcusbrown1853 2 роки тому
I forget where, but I found some commands that adjusted the fan's temp windows so it doesn't do the all or nothing oscillating
@grimtagnbag 2 роки тому
Love your videos. Can’t get enough.
@andrescalapt_ 2 роки тому
Ey Jeff I love watching your know-how! I have a question please, I want to run Home Assistant Supervised, Pi-Hole and probably will be adding more stuff to it. So, what can I use for this, one Odroid N2+ is enough os RPi 4GB (is what I have now) or separable RPi? Edit: or can I go with the Odroid-H2+ and solve everything? :P Thankss
@saschabschmidt 2 роки тому
Jeff, thanks for you videos, especially those on the Raspberry Pi. And, I really appreciate you putting a part of the failed recordings in the end. I always thought, I am the only one to produce such nonsense when recording a video :-)
@taylorworthington9394 2 роки тому
I like how you said "oldER af" standard versus the "old af" standard. Smart move. BTW, they effectively came out with a higher clock speed rpi4 via the Debian Bullseye release! 21.11.11
@oskariponkala1398 10 місяців тому
The idle power consumption is probably due to the planar transformer used. I've seen the idle current double when switching from traditional transformers to those, which would match the findings here. I love planar transformers, but the idle power consumption is a drawback.
@onlyeyeno 2 роки тому
Came here after watching a PhotonInduction video, and somehow that makes this "powerdraw issue" seem a bit "less concerning" ;)
@JeffGeerling 2 роки тому
If I put 1000A through this board, it would likely glow quite a bit.
@Codeaholic1 2 роки тому
Love the glasses!
@smartsuka 2 роки тому
I would love to see your thoughts on some of the other PoE hats for Pi. There are two versions of the LoveRPi Power-Over-Ethernet that might be interesting on Amazon.
@lis6502 2 роки тому
5:13 it's not a magnet but core/rod made of magnetic-conductive material in order to receive magnetic field from primary winding and induce voltage in secondary winding.
@marksterling8286 2 роки тому
Great video, I use a lot of Poe at home, Cisco phones and cctv cameras and back in January I migrated a bunch of services to 4 pi4s and a pi2 this includes homebridge, asterisk and 2 piholes. On my enterprise switch under normal load they pull about 2.2 watts each but when backing up they get closer 5 watts, I don’t have anything plugged in to them except network and the micro sd card. (I don’t need disk performance) since then I have carefully modified the setup using the sd card to boot then creating a mix of sd card ,RAM disk and nfs mounts means backup aren’t needed. The interesting thing is using my Hopi power monitor between the mains and the switch if I keep the Poe power draw for the 4 pi’s under 14w the Poe switch does not seem to draw any more power from the mains compared to no Poe being used. Effectively getting power for free.
@edwardallenthree 2 роки тому
Great comment that gives me lots of ideas!
@dim008on Рік тому
I'm sorry for my poor English. Hi! I am a novice owner of raspberry Pi and your videos are very motivating to develop in this direction! I have a question about the POE hat of the first version. Is it possible to connect to Pi poe hat and ups hat at the same time? Will it work? Thanks!
@pup4301 2 роки тому
Finally got a pico and a raspberry pi 4! Now to go on my embedded and os development journey!
@sarkasaa 2 роки тому
What are those PCB USB dongles at 3:23? Great video, as always :)
@JeffGeerling 2 роки тому
Those are Blinkstick Nanos, nice little devices for easy status notification LEDs. But a bit expensive.
@LiLBitsDK 2 роки тому
@@JeffGeerling well no need to ask the same question, thanks for the answer :D
@sarkasaa 2 роки тому
@@JeffGeerling Not sure if there is demand for that, but I would love towatch a review about those Blinksticks. Maybe with some examples on how to configure/use them :)
@wleexxon7515 2 місяці тому
Research well done 👍
@joeyghostx 2 роки тому
Wow, I'm starting to learn about the PoE HATs and now I know that I have to choose an overpowering hat or a normal hat that can fit into a normal build.
@stormbowman7148 2 роки тому
I take my HAT off for you sir! Very informative and great video! :-)
@castform57 2 роки тому
Those aruba switches, and older procurves, are pretty dope and they'll probably run until the end of time.
@jfbeam 2 роки тому
I was thinking the same things... Since HP (HPE) bought Aruba, they're sticking that label on everything. That's a fairly simple HP Procurve switch, with new vinyl. I have several that have been in continuous use for decades. (one had to be replaced, and one has a bad port.)
@keyboard_g 2 роки тому
I come for the info and stay for the post credit outtakes.
@seananderson7087 2 роки тому
The only actual problem I saw in this video was the screw thing, and maybe the SMT connector... but like you stated, rarely would be an issue. I especially found the USB power test with the hat on to be a weird thing to test for, not that it's bad to test for it, but the way it was framed felt like you were trying to say it was an issue. By the way, I'm sure it was done as a joke, but seeing you saw into that screw still attached drove me insane hahaha.
@Ikbosh 2 роки тому
Hi Jeff, if you run the new PoE hat but set the switch port to run only AF does it still work and does it still consume more power? If I missed this in your video my apologies.
@Sembazuru 2 роки тому
I've had good luck so far on my OctoPi setup using the GeeekPi POE+ hat powered by a Netgear POE+ switch (GS305EPP). On my OctoPi RPi4 I have the RPi 7" LCD, a Pi camera, and two web cams. I haven't checked the power draws yet, though. (Side note, I went wired ethernet on my OctoPi because the WiFi IP address keeps changing on me for an unknown reason...) Do you have any videos that I haven't discovered yet (or any planned) to test out various POE hats?
@CodyHadley 2 роки тому
Great video! Maybe you could test some of the other brands that make PoE hats for the RPI and make recommendations as to which are good and bad? Also you could do a comparison of the best of the other brands PoE hat vs the official rpi brand PoE hats? It would be interesting to know if third party brand PoE hat is better than Official PoE hat.
@DanSchreck1 2 роки тому
Did the Pi Foundation email mention anything about the screw issue?
@JeffGeerling 2 роки тому
Not yet. Still trying to figure out what the deal is there... Otherwise maybe RSJ can start a mail-in screw-shortening service!
@G-u-z-i-o 2 роки тому
@AstroCat Why couldn't you just say grinder.com? Does UKposts block comments that have links in them?
@AndrewGillard 2 роки тому
My Engineer PA-01 tool (combination crimp tool, insulation stripper, wire cutter, etc.) includes a screw cutter for M2, M2.6, M3, M4, M5 screws, and it sees a fair bit of use with my 3D printer and related projects. www.engineertools-jp.com/pa0103 Sometimes I just don't have the right size of screw on hand, or I need a screw in a weird length. Being able to easily cut a screw to length with a simple hand tool is pretty neat 👍 Although even M3 screws require a concerning amount of force to cut with that tool, so I'm not sure I'd like to try cutting M5 screws/bolts with it! 😐 And it doesn't ruin the screw threads, as most tools would! Engineer tools are definitely not a super budget option in this age of Chinese mass-produced tools (and which are often perfectly adequate for the job), but they're not unreasonably expensive either, especially since all of my Engineer tools are high quality :)
@erkinalp 2 роки тому
@@G-u-z-i-o Depends on cnannel owner's settings.
@G-u-z-i-o 2 роки тому
@@erkinalp Well... This one does not, apparently. Otherwise you wouldn't see it.
@KernArc 2 роки тому
Erm, so they went for synchronous rectifier buck converter and ended up with way worse power efficiency?
@thegittubaba 2 роки тому
yeah, I'm kinda surprised at the whole poe hat controversaries. Making a SMPS is very simple these days, even cheap chinese buck converter boards from aliexpress are 90+ (or at least higher 80s) efficient.
@Andrew-dp5kf 2 роки тому
Given the large vin/vout delta It would be interesting to see if the effect of changing the buck converter components could improve the efficiency E.g A) A larger value inductor swapped out B) if the switching frequency can be changed
@kikihun9726 2 роки тому
The hdd's power noise is reached the coil and it created the sound. Or a noisy power supply.
@alexwilliamson4278 2 роки тому
i know this isn't relevant but i was wondering if you used the argon one m.2 case and a m.2 to pci express adapter to plug a graphics card in and dowload the drivers if you ran windows 10 on the pi
@cattips_ 2 роки тому
Thanks for this information and a great video. Why do you use USB C when running Raspberry Pi 4 with POE? are you joking us? (I do not use the word kidding)
@jeraldgooch6438 Рік тому
Mr. Geerling - has Raspberry corrected the faults you noted? Thanks.
@P1aenkl3r 2 роки тому
Nice vid. I would like to see a video that shows how to build a highly available system with Raspberry PIs.
@lukemawson1027 2 роки тому
I’m curious as to what hard drives could be used with the PoE+ hat without issue? Also, if it is more a throughput issue regards the Pi usb, then surely this isn’t a problem regards the hat but with the USB ports, and if the hard drives are drawing the right amount then it still would be better than the PoE hat which would be incapable of generating enough wattage even if the hat drives were matched to the usb throughput. 🤷♂️ I’m a bit of a newb so please correct me if I am wrong I some way.
@pagiatis 2 роки тому
"I expected better" Did you really? Given how much you've tinkered with RPi products that strikes me as odd. Great content as usual, keep it up!
@ernestgalvan9037 2 роки тому
To all the folks including Jeff) that are raving about the greatness of Phoronix.. I sure hope some (most?) of you are contributing some goodness and Thanks in the form of a buck or two. ($$). Come on, people, let’s show some greatness ourselves.
@meeDamian 2 роки тому
Super video! I applauded for $2.00 👏
@xDELTAGIx 2 роки тому
I would love to see if this thing could power a 7-inch LCD and a camera for my use. It should be with in spec, but I guess I will have to find out
@bostocked 4 місяці тому
When the new hat comes out for the Pi 5 wouldna switch that provides 30W per port be enough to power a few / cluster?
@alexscarbro796 2 роки тому
Some switch mode isolated DC-DC converters require a minimum load current to maintain regulation stability. This is usually the case with low cost regulators that don’t have an opto-isolated (analogue) feedback and instead they monitor the current through the primary winding during switching to estimate the output voltage.
@alexscarbro796 2 роки тому
That minimum load current could easily be 200mA, so at 5V that’d be 1W. One way to guarantee the minimum load is to place a resistor in series with a zener diode. As the unregulated voltage rises above the zener voltage, it starts to conduct with the resistor becoming a shunt load. This is more efficient than just strapping a load resistor across the regulator output since it only conducts when the voltage drifts too high rather than all the time (which would hurt the efficiency figures under normal loads).
@johndododoe1411 2 роки тому
@@alexscarbro796 If voltage rise is the issue, a zener load that only draws current above 5.2V might (or might not) stabilize the smps. A more complex solution would use a current sensor to reduce or disable the dummy load as actual current draw approaches the minimum. Anyway a well designed PoE+ circuit should have enough complexity to avoid having a minimum load or wasteful own load.
@mweilbacher 2 роки тому
Thanks!
@relaxationmusiccertified3684 2 роки тому
Love your contents but when are you gonna be playing that guitar
@richarddaggett 2 роки тому
cool - good information!
@Johnsmith-uc9df 2 роки тому
Hi do you have a video on setting your HP Switch and is that the GUI (web interface ) in this video Thanks
@NIK12787 Рік тому
I have a WaveShare PoE Hat for my Raspberry Pi 4B 8GB RAM model and I find it much better. The WaveShare PoE Hat has a better placement for the fan where it does have a slot to feed through the cable for the camera and also a slot to feed through the cable for display(for screens), It also has a switch to turn on or off the fan, it also has a pass through GPIO where you plug the PoE Hat as normal but at the top of the hat it has GPIO pins on top to connect more things to it. Lastly it also has a USB port on it as well to plug something into it. I also have an extension board for my Pi as well which connects to the audio jack, the 2 micro HDMI ports, and the USB-C port and when it is connected, it gives your Pi the audio jack and USB-C as usual, and you can now use regular HDMI cables to the Pi instead of using the micros and you also get an extra USB port too. I recommend those. If you want I wouldn't mind you reviewing the 2 I mentioned just to get your opinion on it.
@minigpracing3068 2 роки тому
Anyone buying a switch today should consider a POE++ or bt standard switch to get lots more power per port. What are your thoughts of the external POE power adapters? I'm thinking of getting something for a Pi4 project and won't have room for the POE hat.
@edwardallenthree 2 роки тому
I like the uctronics one (with the fan). I don't know if it is "safe" but my pi 4 idles at 3.3 watts according to the switch. It does have a coil whine, but it is outside of my hearing range. My daughter gets annoyed by it. The fan is very quiet. It is a standard 802.3af.
@annakissed3226 2 роки тому
If you can can, could you report in future what the frequency of the coil whine is?? Due to restricted frequency range in my hearing: I cannot detect any noise at all. In my case I hear nothing on the first video & some minor crackling when you plug in your USB drives. Thanks
@DrLightMDDJ 2 роки тому
Can you post a link to the powered USB hub you showed (or recommend) in the video?
@JeffGeerling 2 роки тому
This is the one I use from Amazon, with a 2.5A adapter: amzn.to/3iTDd98
@christophmueller5484 2 роки тому
Good Monring Jeff, did you notice a coil whine with the PoE+ modules under normal load? I bought 2 of the older PoE modules and both have a clearly audible coil whine (even without USB devices attached). The PIs were running in the utility room. So it wouldn't bother me, but since the cat likes to lie on the dryer, I decided against it and now I'm forced to use non-official modules. For the purpose of cooling I had to tinker and unfortunately they are too high for 1 rack unit. Therefore it would be nice to know whether the new PoE+ modules are worth buying. Even if they would consume more power. I never checked the power consumption of the cheap no-name module I'm currently using. Greetings Chris
@JeffGeerling 2 роки тому
I haven't heard the coil whine except when backfeeding it from USB-C with load. Under normal circumstances I don't hear it at all. I do hear a tiny bit on my original PoE HATs.
@Fionnafire 2 роки тому
I have one of those victory posters! It's even pre production, I found it at a thrift store
@ryanreich7635 2 роки тому
HAHA Red Shirt Jeff.... I yelled at him as well. WHAT ARE YOU DOING??? LOL
@rsmaster5637 2 роки тому
I ran into all those issues while i deployed 2 raspis 2 days ago…. Your video would have helped in retrospective.
@criggie 2 роки тому
I have a Pi4 ( Raspberry Pi 4 Model B Rev 1.2) with a single 5 TB USB3 spinning hard drive. Both are running off a POE hat and the switch shows 5.7-5.9W when idle, and up to 8.something W when actively doing a backup. I do not have a " /sys/devices/platform/rpi-poe-fan@0/power_...." to show that number.
@helmutreitter9622 2 роки тому
I just come um with the question, in you shut down the Pi, How you turn it back on in you online power oder PoE?
@casperghst42 2 роки тому
Sorry being a bit late to the game, as the POE+ hat does not fit into the official case; which case would it fit?
@buf0rd 2 роки тому
Video on audio settings and calibration? Ty for content.
@JeffGeerling 2 роки тому
Check out ukposts.info/have/v-deo/eZqkpWp_cLCmjnk.html for a little BTS on audio and video setup.
@stucorbishley 2 роки тому
What are the alternatives? Are there any 3rd party PoE+ hats worth checking out?
@kajyakuzonik9130 2 роки тому
I use a Knipex bolt cutter for shortening my screws. May require a bit of filing afterwards, but that's minimal.
@AnilArya51 2 роки тому
0:07 I expected that Red shirt guy would do something like that!
@bra1nsen 2 роки тому
The USB Port can Supplemente 1,2A max. Okay what about the power pins at the GPIO Bar? How much current can they handle?
@steveandamyalso 2 роки тому
@11:46 That sound is the sound of the magnetics (flat plane transformer, most likely) either saturating or starting and stopping. For the hey of it, use a pencil eraser to press down on the transformer's core. That should at least attenuate the sound if not actually extenguish the sound.
@RicardoCooper 2 роки тому
My Pi4 (4GB) with RaspiOS Lite, pi-hole, 256GB Intel SATA SSD with the second PoE hat revision (without the mezzanine board) only draws 5.05W, 94.60mA, 53.46V My PoE switch is the EdgeSwitch ES-8-150W PoE+ switch. Thanks for the warning, I was planing on getting the new PoE hat but now I will wait!
@mrexplore148 2 роки тому
Maybe best to grab some of the original (fixed) PoE HATs in case they stop making them and leave us all with just the new PoE+ HAT
@commander_fire 2 роки тому
Is it still possible to use the GPIOs with the hat on?
@orfeous 8 місяців тому
Any updates on this? My goal is to power my pi4 running home assistant with PoE+ maybe with Zigbee USB adapter. Dont know how much power it draws though. Would be nice to not use the power adapter and just keep it clean with my network rack. Its so nice to power up things with PoE+ There might be some better third party fans to replace the Sunon with. Sunon was commonly used in server applications running loud. I think Pi5 are in the making as ive heard. I like your rack setup with all the pis. Mounting solution looks homemade with 3d printer hehe. But i think there are rack mounts in metal for a more clean look. Might implement some low rpm fans as well for cooling
@lis6502 2 роки тому
3:26 What are these programmable USB ws28* LEDs? I mean it's name + linux support? I am looking for notification light over usb for quite long time ;)
@JeffGeerling 2 роки тому
Blinkstick Nano: www.blinkstick.com/products/blinkstick-nano
@rjdp3 2 роки тому
Can POE+ handle 10GB ethernet power draw for the next Raspberry Pi model maybe...or usb C with more power to peripherals
@seamonkeys12y 4 місяці тому
When I first saw the PoE hat I thought the price was too good to be true, and it was lol. It has terrible coil whine when the Pi is off and the threaded spacers it came with weren't long enough so it's really easy to overtighten the board and cause pretty bad flexing but if it's too loose it won't turn on because of the tiny socket header they used
@beauregardslim1914 2 роки тому
I thought Red Shirt Jeff was going to Dremel off that pesky camera port that was in the way.
@yaboimarkodev 2 роки тому
Hi Jeff! Can you recommend a router, switch, wireless access point combo all in one thing under 50 USD, because I am changing ISPs soon, and want to redesign my home network setup on a dirty cheap budget, under 75 USD, any words of wisdom?
@RoryIsNotACabbage 2 роки тому
You can never go wrong with a tplink. They should be around that price
@amirpourghoureiyan1637 2 роки тому
Level1Techs recommended Engenius for PoE stuff, might be worth a look?
@jameshogge 2 роки тому
I feel, if you're adding peripherals to your Pi, you can afford having a dedicated power supply too. The only Pis I run on PoE are the one's where I can get away with a single cable to them
@LiLBitsDK 2 роки тому
PLUS for more power usage :D
@krugtech 2 роки тому
nice job. we lost 2 watts. i think one ssd is reasonable?
@turnkit 2 роки тому
5:00 'old hat used a wire around a magnet transformer' -- is that right? Not a magnet but (iron) ferrite core?
@JeffGeerling 2 роки тому
Ferrite core :) I'll be more careful with my words in the future.
@uncle_bubba6007 2 роки тому
You can not safely provide DC positive energy from two different sources without connecting the ground (negative) together. Think of it as a voltage difference that provides current. When you connect grounds it ensures the same "voltage difference" is established between the two sources.
@edwardallenthree 2 роки тому
Thanks! This is a better explanation than others I have seen, and makes more sense. Intuitively, I know that the cheap non isolated adapter I got to power a pi zero from 24vac would cause blue smoke when connected to a DC power supply, but couldn't quite understand why.
@JeffGeerling 2 роки тому
When connected to USB-C power, I did not have the Pi plugged into a PoE switch.
@GTDragonGaming 2 роки тому
Plz make a video on setting up pi as a port forwarding system 🙃 like ngrok
@jonmayer 2 роки тому
How have the foundation not figured this out by now?
@steffeberle 11 місяців тому
Hi there ...is it possible to still use the GPIO pins as the POE Connector does not show any pins ...only small holes but when plugged into the pi ...can those wholes be plugged with small cables?
@BenCos2018 9 місяців тому
get a long header exenstion
@luk318 2 роки тому
I was going to buy this crap.. Really thanks for this detailed review!
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