Raspberry Pi Waveshare UPS
ฝัง
- เผยแพร่เมื่อ 8 มิ.ย. 2024
- Raspberry Pi uninterruptible power supply (UPS) review and setup.
The Waveshare UPS featured in this video was purchased from the Pi Hut here: thepihut.com/products/uninter...
And it is also available from the Waveshare website here: www.waveshare.com/product/ras...
Please note that the above are NOT affiliate links, and that I have no association with The Pi Hut or Waveshare.
The Wiki instructions for the UPS are here:
www.waveshare.com/wiki/UPS_HA...)
You may also be interested in my previous video on running a Raspberry Pi on batteries: • Raspberry Pi Battery P...
More videos on SBCs and wider computing and related topics can be found at / explainingcomputers
You may also like my ExplainingTheFuture channel at: / explainingthefuture
Chapters:
00:00 Introduction
00:46 UPS Hardware
06:28 Assembly
08:25 UPS in Action
12:50 Protected Pi
#RaspberryPi #UPS #ExplainingComputers - วิทยาศาสตร์และเทคโนโลยี
Devices like this are a testament to people's ingenuity. The POGO pins made me skeptical, but I'm happy you addressed that.
I have a similar unit. It didn't look to me like the pins were centered correctly on the pogo pins, but I guess as long as tension holds it there. Unfortunately mine is not a UPS, that one looks nice 👍🏻
You can put some solder on the pins when the unit is assembled and no batteries are inserted, if anyone feels unsure about the pogo pins. It should be easy enough even for amateurs
there's another issue with connections like these - micro arcs. with time, current gets passed through micro arcs where microscopically pogo pins aren't properly aligned with the bottom of the Pi pins. with time this generates oxidation, which is a good insulator. so I wouldn't be surprised to see more and more instability with use.
this also works in reverse - the UPS unit might have increasing difficulty getting charged through the pins, leading to slower or frozen charge.
so much for "uninterrupted" huh
I didn't think the Pi would have this sort of option, but given how clever the whole Ecosystem is around it, I'm not surprised.
Thank you Christopher.
It makes a lot of sense for those who power it by using solar power as a remote sensor or whatever, so it’s not surprising that there are several different variants available out there.
Stanley the knife and mr. Scissors always get top billing, in unboxing videos. It's about time for Peter the pliers to get some screen time. Bravo, bravo. 😊
“Lets go and take a closer look”. Favourite Sunday words. :-)
A useful product for those who need uninterrupted power to their Pi. Right now I am not one of those people, but certainly could be in the future. Thanks for showcasing it.
The timing of this video is perfect. I just set up a new Raspberry Pi 4 yesterday as my primary DNS server, so having a UPS on it like this is exactly what I need to keep it from going down during power outages! I just ordered one of these for it!
I'd love to talk to you about that.
Running time on batteries and code to safely shutdown before voltage drops too low would be valuable additions to this video.
Mr. Barnard is a genius, but I think he might not know that he is also one of the funniest people on Earth! Best.TH-cam.Channel.Ever
:)
I have yet to use a Raspberry Pi. I'm glad you are sharing your adventures. The possibilities.
This is a very nice UPS board, I have looked and the schematics and it seems to include everything you need: overcharge/discharge protection, balancing and a battery voltage/current monitor. The only thing missing is a current monitor on the 5V supply to the Raspberry Pi so we could give a good indication of the time left on batteries. You can guestimate using the battery voltage and current and that might be enough.
where did u find the schematics? i didn t find them on the wiki
Those are good questions. I definitely agree it needs a second voltage and current monitor. I think it would be best suited on the 8.4v charge input rail because you can measure the voltage on the 5v with the Pi itself. Though current measurement on 5v would be nice.
What I am curious about is how the charging circuitry works. I know it says 8.4v in but does that require the input to be no more than 8.4v and have a constant current input? If it requires that then that means it does not have any onboard charge regulation and the charge current would be limited by the max output of the power supply or the battery protection IC's which will just shut off the batteries if the current is too high. Not really Ideal in that scenario. I think it should have a TP5100 IC on it's power input set to 8.4v (TP5100 can do 1S or 2S Li-ion charging) but also have a straight through power connection with the 12-24v input power now going directly to the 5v buck converter so there are less losses. Diodes may work but Ideal Diode circuits would be way better using the dedicated IC and mosfets. This probably was not implemented due to cost saving unfortunately
@@SuperBrainAK There is no charger circuitry in this module. It is quite common for Li-Ion applications to use a specific Li-Ion charger. A Li-Ion charger uses a constant current/constant voltage technique. It starts charging with a constant current and as soon as the max. voltage of 8.4V is reached, it will switch over to charge with a constant voltage (dropping the current). As soon as the current then goes below a certain value it will stop charging.
Having a specific Li-Ion charger instead of a regular power supply is fairly common. The charger contains the more complex electronics while the battery only has over voltage and current protection. These chargers are replacing mainstream power supplies when (Li-Ion) batteries are involved so I don't have any concern about using a specific Li-Ion charger instead of a regular power supply.
Yes, you could use a TPS5100 or another type of cheap charger circuit but (partly due to the fact that those Li-Ion charger are mass procuded) will not only increase the cost but also the quality of the charger.
Ah... today has a special guest appearance from Peter the Pliars.
I had always wondered about whether to add a UPS to my Pi, so this was a welcome video indeed. Thanks for producing it.
Glad you mentioned the power disconnect when bumped. That's the issue with the pogo pin configuration.
Ah, the Raspberry Pi!
I remember this device back from the time when you could still buy one…
Another great Sunday treat
I didn't know I needed this until watching the video. Now I want two of them.
Excellent! Informative as always. I might have to get one of these for my OMV NAS Pi.
The recent high winds we've had has had me worried about the result of a power loss, and this would certainly help put my mind at rest.
I bought mine after seeing this, it was an excellent video as always. Seeing you reviewing a product that i'm considering to buy makes me more confident that i'm doing a good purchase.
I connected it to an old raspberry pi 2 which i only use as a zigbee gateway. Since the GPIO pins are the same it is working flawlessly. No more sd card corruption on power failures!
Great to hear. :)
Oh -- that's ingenious! Using the pins up from the bottom like that! I really like that design!
Another complete Sunday, Thank You. As Always, Be Smart and Stay Safe.
The information you share with us is always top shelf. I appreciate that. Thank you.
For my Smart Home I used powerbank PCB from Aliexpress (4€), old tablet battery (7Ah) and soldered USB out cable. PCB can supply 2A at 5V, so it works great for my application.
TH-cam sent me notification late.
Wow !! Another Raspberry project. It's Pi for snacks this Sunday evening.
Well worth the wait for the Sunday installment. Thanks!
Almost endless possibilities with the Pi. Another great episode.
What a pity SBC's have ridiculously high prices now, though...
I’ve only recently become interested in what a Raspberry Pi can do for me. My first venture was to set up a media centre in the kitchen. I’m not a big fan of the kitchen but now I have access to streaming services, I don’t mind spending extra time in there.
Next I am turning my attention to an empty Macintosh SE/30 case to build a retro-look system and I might consider using it as a NAS.
Thanks Christopher, another feather to put in the hat of the Raspberry Pi!
Very interesting demo. Makes this board definitely look worth further consideration.
Very useful video Chris. I'd be interested in further videos on alternative ways to power Pis e.g. batteries, solar.
Thanks alot Chris, I requested this video couple of months back and here it is.
Thanks again.
So, there were many ups and downs during this video!
I'll get my coat...
It looks rather good for a Pi NAS.
As always, I learned something! Thanks for another informative video on the Raspberry Pi!
Nice integrated solution but for less portable requirements, a USB power bank with pass through charging is way simpler and cheap. 6000 mAH for $13 last time I bought one. Yes you have to carry the battery and cable to move things about and you don’t get the cool software monitoring, but it works for anything taking USB power and in doesn’t need a specialty power brick. And your old Pi case still fits!
Excellent video, thank you. I think this could be a very good option for car use if you can attach the UPS board to 12-15V safely via voltage regulation. Coupled with a shutdown script that tells the Pi to start safe shutdown calculation when the UPS current turns negative, and cancel the shutdown if the UPS shows up positive again because of vehicle start. Have to look into this, if those batteries can handle the high heat inside the car in summertime...
Great walkthrough of the process 👍
Great video as always 👍😀
Thanks for sharing your experience with all of us 👍😀
Perfect ! great addition to RPi.
This is what I've been looking for. Thanks for sharing
I have looked at a few UPS kits on Amazon.ca. Pricing it of course higher in Canada. If I end up buying one, I will have to print out a modified case for it. Your video today has definitely helped me in my research. The Pi that could use a UPS is one of my MotionEye0S camera units. Having backup power is something I always needed. Thanks for today’s video Chris.
Thanks. My Raspberry Pi just went mobile. Ordering one right now. I had just started looking for a way to do this. We’re synced up somehow. Great review and how to. Good morning from where rockets fly 🚀
We so often seem to be mentally attuned! :)
Fab video as always; just ordered my UPS from thepihut so I can move my back garden CCTV system that I've setup using a Pi with no downtime :)
Excellent tutorial, "lets go take a closer look" included 😀 👍.
Two thumbs up, I wish you would have been my teacher, or I was your neighbor growing up. That would be even better. I only would go home to sleep and school! Ps. I'm not a stalker. Haha
I'd love to see some battery life tests for different use cases such as NAS and Security Systems. Since you're using fresh, reputable cells they will be a good representation for the general public.
Uninterrupted power supply for games coding and let's not forget we can even go to the park and talk to ducks 🦆 while we are on raspberry Pi.
You could ask the ducks to peer review your code.
Great video. You touched a spot that's close my heart. Good job.
I'm thinking I'm not going to make it to next year. So long Chris and that for all of the great and relavert video's.
Take care my friend.
A nice video featuring unnamed (yet?) pliers, a new hero in our EC universe.
Excellent review and explanations !
I have some Waveshare hardware that uses the pogo pins. Used it to make a triple board sandwich and it works great!
Very cool! Interesting device, great explanation and evaluation!
Amazing, this is a great little gadget to have... thank you for another wonderful video. God bless.
Nice it's finally Sunday have a nice week my friend
It comes around in the end!
Thanks Chris, makes sense for my Pi NAS and the maneuverability it gives me in my new home man cave (It must be, my friend bought me the sign for the door)
Great video once again. I think i'll pick one up. Thanks Chris!
that is good to use in addition with a standard ups using nut ups as a ups server for the usb ups
And here we meet again
Greetings!
Greetings -- your silver medal is in the comment below! :)
Those POGO pins are clever! Enjoyed seeing this. I have a NextCloud running on Odroid SBC. This would be a good application of NextCloud on Pi.
Thanks Chris, that’s a great option for rPi.
I like your sense of humour.
So now the pi will run 24/7
I think it would pay to set a root cronscript to automatically reboot the pi early in the morning each day so it never crashes. So it is always available 99.9% of every day.
I set a reboot cron job on all servers that I install.
I’ve never had them crash.
Yes it means 2 minutes every morning they are totally down but never down when you really need them. It overcomes any memory leak problems. I’ve got tens of servers on the internet that never crash for ten years or so. I even forget them because customers never have problems.
It's somewhat counterintuitive to have a UPS (intended to protect against power loss), but then have the power connection reliant on pogo-pins! So I was relieved when I heard you mention that thumping the table hard caused the RasPi to reset. This was somewhat expected. If you are using a UPS to protect from power outages / brown-outs etc., then I strongly suggest a more robust power connection be made between the UPS and the RasPi.
I like the safety feature for the battery 🔋
Very beneficial to have a UPS on our boards.
It would be interesting to see how reliable are the electrical connections on the pogo pins, especially if the pi is mounted on a car or something shaky
If I put it in an environment with a lot of vibration, I'd definitely solder the connections.
Oow i gotta get one!! Thank you for showing this excellent piece of kit
If you ever have an excuse in a future video to make a real-world test to see how long those batteries would last, I’d find that interesting. Plus, it’s comforting that Peter the Pliers is on hand for pulling caps off of batteries or the occasional tooth. Looking forward to your next video!
I second the question about the batteries duration. That is a critical information IMHO.
The Make of the battery is critical with differences in quality huge. If in doubt buy samsung. Chinese (eg ultrafire) units are about 1/4 as good.
I have one of these. It works without a hiccup
Thank you so helpful, wanted to set up an RPi nas myself with a ups but thought it would be too complicated and much more expensive than this :)
another in a long line of well done , easily understandable episodes. Wish you would pen a booklet on basic linux commands for boneheads like me.
Good information, your price on the batteries were reasonable indeed.
Thank you for the video, as always it was very educational.
It would be nice to have some battery drain times wirh assumptions about current consumption and minimum battery starting charge. I was going to build one of these, so I am delighted that someone has done it for me, affordable and well designed. The python watching script can be easily adapted to safely shut down the device when the battery charge crosses some threshold. Brilliant!
An elegant setup. Thx 😋
Thanks. Excellent explanation
He talks funny but very informative and nice
10/10 on the builders tea, looks like a good brew 👍 that's crying out for a 3D printed case..
Peter the Pliers got to feature! Mr. Scissors and Stanley the Knife will be jealous. 😁 😆
Basically it allows the pi to be somewhat like a headless laptop. Glad I watched all the way to the end. Through out the video I was wondering what functional purpose this would have over a standard UPS. I was trying to think of reasons why someone would want to have a pi stay running while all other devices are off line (network, external storage, etc); if those devices were on a UPS, then the pi likely would be getting power from that UPS as well. However, if the pi is elsewhere on the network, and not near the UPS that is keeping the network alive, the pi would need to be getting power from some other UPS. ...Another possibility, if you have a PoE network, put the network on a UPS, and have the pi powered using PoE. :)
I hope i can see Mr Barnatt drink tea or coffe when break time 😁
Nice UPS. Yes, it is good to move around without shutting it down. Save time.
I especially like this video.
I have to admit I got excited for "cup of tea time".
Excellent project! I already have ideas (and a spare RPI) :)
Hi Chris, glad that you do hardware reviews again! Can you take a look at analog computing and its future in AI like new startups like Mythic AI are trying to implement?
Yes, for some reason it's been more software a little while. But next week is PC hardware, and various other hardware is coming up! :)
Hello Christopher. Ive been following your channels for years now and enjoy all of your content. I have a question for you about this product. After using the UPS, can you tell us if the button labeled "boot" is, as you suspected, a momentary disconnect for resetting purposes?
Good question; I looked into it, as the Waveshare Website also has the schematics for this thing (always a VERY nice touch). What it does is to reset the battery protection IC (HY2120-OB). The datasheet for that has the following text: "Notice: Discharging may not be enacted when the battery is first time connected. To regain normal status, CS and VSS PIN must be shorted or the charger must be connected." ... that's exactly what the Boot button does.
It would seem wasteful including a switch to momentarily disconnect the battery when there's an on-off switch a few mm away ;-)
It would be wise to apply some insulating cover to the pogo pin. Thanks for the review.
Nice concept!
Eye-opening video, Chris; nice one! How long can the Pi run for on the batteries alone?
It would have been nice to have a run time. You did that on pi zero and a pi 4 with a couple of different batteries. I assume there's different capacities of those batteries, but it still might have been interesting.... I enjoyed this video.
Great project! We like it! 🙂
Thank you 🤗
Been watching your channel for several months, watching older videos as I can....
This is the first time I remember seeing Peter the pliers....
Maybe you should do one or two minute video introducing all of your "supporting cast" just for the S&G Factor, (Smiles and Giggles).
Thanks for watching. Peter indeed make his first appearance in this video! :)
I have one of those! I made a great battery monitor with a screen and clock. Be sure to source your cells from honest folks.
Edit: I use this with a Wave share compute unit board with the same form factor as a pi. Works great.
Edit 2: I have never had a problem with the pogo pins, and I use my unit like a laptop, swinging it around from the cords like a medieval weapon.
Awesome product !
Greetings Christopher and Peter the Pliers! And a cameo appearance by Mr Scissors and Stanley the Knife. Nice piece of kit that UPS. Well done even with the brain hiccups. 😎
Great video Chris. This is indeed a very nice product and a lot cheaper than I expected. Although my mains supply is pretty good here, I do had a UPS in my comms cab, with my Pi3b (running PiHole) connected to it also, along with everything else. But might get some of these for some of my other 24/7 Pi's.
Does the WaveShare UPS perform a safe shutdown of the Pi when the battery gets low?
@Utkarsh Amitabh Srivastava You're quite right, thank you. I just wondered if the board implemented it natively.
I had to go to a smoke shop to find the proper batteries. First I went online, confused because there were 2 types. (nub, no nub) then off to "Batteries plus" because they have all things batteries. Nope they don't, but luckily the tech "vaped" , showing me his vape machine he said "you need these." yup. "go to APK Smoke Shoppe, they Got'm" and they did. The incense smell of the smoke shop brought me back to 1968, memories of Boston flooded my mind. Anyway, all is good. :)
Great story! Now we know where to find the cells.
Thanks for useful information.
Greetings from across the pond near Albuquerque, New Mexico, USA. Another super informative video -- thank you! Seems to me WaveShare could place a couple more holes in the UPS PCB so that a RPi Zero 2 W could also be placed on top, especially since the GPIO pins are compatible with the larger models. Just two more holes. A Zero 2 W could run a mightly long time on something like this!
good to see that both Mr. Scissors and Stanley are surviving the state of the world OK!
They are indeed. Greetings Leslie.
That’s a great product, it would be good for a power monitoring system that could communicate via wifi if the power goes down in my shed before powering down!
Great video, thank you !
Hey Peter! (Waving my hand...) Nice to meet you!
Peter waves back! :)
Great video.
Good price for this unit. A couple of days before this video came out there was a similar product being promoted on AliExpress. Search for "Raspberry Pi 4B UPS with RTC Uninterruptible Power Supply 18650 Battery Charge" which is nearly USD 40 plus shipping. Physically similar - it also uses pogo pins - but is not a rebadged version of the Waveshare unit Chris is reviewing. The AliExpress one has a realtime clock - but no extra pins, so maybe signal goes through the existing pair of data pins.
Excellent vid. Thank you. I wonder how long the batteries last. If the set up is permanent why not hard wire the POGO pin connections.