Almost forgot to Like !! Nice job, clarifies me a lot of things about VU meters. Thx!!

Yes, but you only used 5S so your ability to output at 20V is pretty much 0....once you factor in voltage drop (if you're pulling any decent amount of current) you'll drop from 21.0V to 20.0V really quick. In my experience you need at least 20.3V for most of these buck PD boards needs at least a few hundred millivolts over the output. The BMS you chose is definitely a decent choice as its simple and not as problematic as Daly BMS's Very cool how you adapted an Arduino to create a simple display with some of the more important information. Cell voltage and then calculating SOC based on lowest cell voltage is pretty simple with cobalt based lithium ion since its discharge curve is pretty linear. Using the overall voltage of the pack isn't the best way to go since your BMS will cut off once the lowest cell hits the BMS low voltage cutoff. Shouldn't be a huge issue if your cells stay fairly well balanced but once you start to get some deviation you might find near the bottom of their discharge they will deviate even further. Low voltage cutoff on the 30Q is 2.50V....if you stop at 3.00V you're missing out on 10% or 15% of the capacity. I personally wouldn't use the 30Q but if that's what you had laying around for free then free is better than nothing....30Q definitely has some cycle life and capacity degradation issues that came from trying to squeeze 15A out of a 3000mAh cell. Since you're running it at a max of about 7-9 amps if both ports are outputting 65W it shouldn't be too much of an issue. It would be cool in the future if you could find the simplest way to measure voltage and current output at each port but I think thats going to involve working with the fast charge module you're using and not doing it externally with the Arduino I didn't realize that input board you used could do 5S charging which is pretty cool. I know there are some boards on Aliexpress for 2S/3S/4S charging. When you look at getting a spot welder keep one thing in mind. Spot welding is entirely dependent on your power source: using a TRULY HIGH C RATE LIPO (that "100C" rating bullshit is all nonsense) SUPERCAPACITORS (watch out for all the used caps on Aliexpress, you get what you pay for) OR A HIGH C RATE LIFEPO4 LIKE A123 OR HEADWAY. You can use the simplest $20 PCB so long as the mosfets on the board are 300A-500A mosfets and there are 6-10 of them. Then you also want to skip the stock 10AWG leads for attaching your power source to the board and your weld pens/electrodes. I use 2 AWG to connect my Headway or A123 batteries to the board and 6 AWG silicone wire for my welding pens. You can make electrodes out of solid copper wire but the proper alloy to use is actually an aluminum/copper alloy. It's all about having a package that has low IR...you're aiming for single digit IR from power source to electrodes...3-7 milliohms is usually ideal. A 16Ah/20Ah Headway/A123 battery does pretty good but when I tried to parallel 2 20Ah A123 batteries I blew the mosfets on one of my JQ-DHJ02B boards...definitely one of the better boards for the money right now if you don't want to DIY your own (There are Aliexpress listings for mosfet boards for 8/12/16/24 etc mosfets of your choice...I like the IRL40SC228...then you'd need a control board like the 7Y320 which is meant for supercaps...for supercaps I'd recommend 2S2P minimum if you buy used caps from Aliexpress...they sort them by internal resistance and then sell them accordingly so don't buy the cheapest 3000F 2.8V caps you can find) There are a bunch of bidirectional boards available on Aliexpress, I mostly use Feb 22 store. Makes life a lot easier and most of them are either buck only (so you'd want a 6S or 7S battery probably) but some like the IP2368 are buck boost and meant for 3S to 5S with 4S probably being the most common. A 4S2P pack of 5Ah 21700's makes one hell of a good sized powerbank and with most 5Ah 21700's having a 10A or 15A rating they can easily handle 200W worth of output if in 2P. Whatever you do avoid the SW2303 IP5501 boards, they are garbage. My channel has a couple videos (long and boring) that go over a lot of the options out there and what I think of them.

came for the macro pad stayed for the cat o7

Hello, This is great! Do you have schematics/diagrams for the wiring?

You should definitely be way more popular, you go into more detail than every DIY channel I've seen and you are funnier. You deserve much more!!

Hi, great video! Very informative, I had to use jawsper's version of the motioneyeos image due to having a raspberry pi zero 2 w with a cam rev1.3 instead, but it works great. But the problem is I'm making a dashcam and cannot have a wifi connected to the pi, so is it possible to use motioneyeos offline? Or even making its own wifi acess point would do, in fact make it more convenient. Would be glad if you could help me out!

NOT GOOD he talks WAY TOO FREAKING fast & does NOT explain why for many things or give trouble shooting if there is problems

why do these ppl NOT say WHY they do what they choose?????

Why you don't connect the voltage sense wire?

5:10 Old Times 🤣🤣😂

5:10 🤣🤣🤣🤣 old times

Bro... Thank you so much you are so understandable I have been watching videos for hours and I finally now understood with your video

Neighbor you just got a new fan! Loved the video brother. Love from Serbia! Will check the rest of the videos as well

i want 2 6x6 macroboards

Does it matter if it's ubuntu server or desktop ?

Cool but you could also free software autohotkey with any keyboard (including your own) by assign macros to hotkeys. Dont need any of that

Could this work with the Arduino Nano V3.0 Atmega328 ??

I don't see anyone building it using ARDUINO NANO, not the Pro Micro.. Why? What's the disadvantage of Nano on that project?

make a video with endian firewall how to boot mine stock black screen when booting

suggestion?: use the old HDD as a nice backup driver (mirror), if it eventually crashes, it finally used its life, and no money was lost (apart from data) for those who find it difficult to setup a static IP address through ubuntu, if your home ISP modem has a DHCP Reservation option, you can setup a static IP of your choosing with the MAC address of the server. in the ubuntu server, type "ifconfig -a", find "ether" or "eth0" and you'll find the MAC Address (e.g12:ab:a1:b2:b1:a2). put those details in the modem and give server a reset, if it not working, shutdown the ubuntu server and reboot you home modem to clear the caching.

I made the same, can you explain how to calibrate the voltage, i tried but the display always showing same voltage during charge and discharge, sure im doing some mistake. Kindly assist. Thanks in advance

is there have a tutorial about how i can connect my server to global internet with a dynmic ip

Is it possible to export all the buttons and settings to import them on a couple other laptops?

Loved your cat!

Would I be able to make this into a cloud server?

That's so cool… I'm a person with a disability and having everything all together one place would be awesome… would be also cool to have a virtual keypad that I could assign things to

you can add little bumps with notches to friction fit the arduino inside instead of super gluing it, will be less permanent and more elegant

What software do you suggest for home cameras? The only free one I could find only works on windows and is kinda shit. I really wanna change to Linux for that server but IDK what software to use.

That's a great build. I would not use an atx psu for various reasons (the load resister being one of them) but i fully understand your choice. That said, i am particularly impressed by your design

Bro everythings great but iv understood nothin cz of fast time nd i want to make same project but icant watch nd undertsand the video

when i applied the netplan my router suddenly did not want to connect to my laptop anymore, do you know why?

Hi, I need help. When i put in ls, nothing pops up

Can this be used to test things that need more than 10amps?

Ja sam iz hrvatske i volim se bavti sa tim nasevima serverima...

Jesi ti iz hrvatske

ubuntu server interesting choice, good video

great video, made my server today(trying )but will help if u post something on jellyfin , plex and home assistant

I'm petting my old Laptop, as if this would be a pet that is about to get layed down.

I like your video

Hi ! Would you sell one of these ?

Hey! I see you are from Balkan from your browser language! Pozdrav iz Slovenije:)

i think i will run my home server which i will use as a NAS on windows because i would easily get lost in linux, i definitely know my way around a windows machine

im 3 mins into the video, just noticed the powerwashing clip on the topleft 🤣

for a first time user of linux and setting up a server LOL i quit as soon as you started with the terminal NOT Beginner friendly SORRY will not be following you setup

Don't do it! You will consume so much electricity using an old PC build!

first time watching one of your videos. love they way you relay the info gained a sub!

exactly what I was looking for... thanks

4:48 in some other videos and guides, people use a wire for the row connections instead of the diodes themselves. is there any reason to do one method over the other?

Thank you so much for the guide. I do mentoring with a group of kids and this seems like a good cheap introduction to soldering, patience, flashing, 3d printing, while also getting them into the keyboard gremlin scene.

Man, ultra cool project! Just order the parts and I'll try to do it as a first arduino project. Kudos from Brazil, my man! Also, lots of pets on my behalf for the helper.