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Hope you're doing well comrade
@davide @babywhale
stuff mostly arrived...
here is my setup:
it works perfectly, the problem is, i finally added the UPS to the "server" and well... running at 800mhz again... need couple of restarts, breadboard isnt optimal
ok, im back upto speed
In Romania the internet is far more reliable than power. I used to live in the old part of Bucharest where power lines were installed a century ago when people were using it to power lighting mostly. Digging them up and changing as well as the underground transformers require tons of special permits and the work stalls each time they discover some middle ages necropolis or basement.
I live in the mountains now, here power is hydro but landslides and floods are often causing problems instead even as the network is not undersized because it used to be an industrial town.
In order to solve that I use UPS for the networking part and only laptops for my servers. Lower power requirements and most have batteries as well.
What computer is that under the breadboard? You can power it from a USB power bank?
Edit: Definitely I recognize the Adafruit compatible AVR programmer
The AVR programmer is basically a 5v psu, didnt have anything other on hand..... it tricks the PC to give me 2.7ghz and not 800mhz.....
Dell optiplex 3050 4 x Intel(R) Core(TM) i5-7500T 2x8gb ram
there is no USB power bank
the white box is a DIY very cheap and new battery bank 6S2P so 18V-25.2V
it's being fed ~20V constantly by a AC adapter (with diode)
when the AC is down the powerbank is the only thing connected to all the stuff so it has to supply the power from 20V until the BMS cuts it off
why did i got with 20V? i plan on getting some solar powers and setting the output to 25V
with a 25V source added, bulk of the power will be drained from that 25V source and not 20V AC adapter sun goes down, battery drops to 20V and the AC power takes over
should solar be gone? AC is there, should AC be gone, Battery is there.
I refuse to spend money i dont have on a poper system
also everything should run on 12v (thanks router, switch and hard drive case) or 24v, fuck you dell 19.5V and eat my DRM ass.
@FlorinMarian, you should have used @DeadlyChemist as a consultant. You have wasted a lot of money in your data center closet.
You know, I also told some of my close friends: if everything had gone perfectly with this business from the beginning, I wouldn't have learned anything.
i actually offer paid Support on demand (tho no customers)
but yeah, i hate, absolutely hate spending money on stuff i dont need, the battery pack can be easily made into kickass USB powerpank so hopefully money well spent (i have 2, kind of) (pic comming)
everything else is mostly parts i had or can use in random projects
Ok so that thingy with a heat sink on the top of the picture is a buck converter?
In my sad Italian experiences, building anything from parts here is no less than 3 times more expensive than buying a finished product
WOW there is allot to unpack here, this set up would have me going crazy with the complications between each unit. so you have a sff optiplex with a breadboard ontop, thats attached to some splitter going to the white battery bank and then an external HDD in that grey box? could it be more simple if you can use existing sata power / sata interface for the HDD?
the red one is a step up converter (set to 19.5v because dell... input is 12V)
the silver one (the the right under battery) is a 24v (well in my case battery voltage so 18-25) to 12v serving as main 12v line for all the devices
it's micro, not sff
the breadboard has 1 purpose, trick the dell into thinking the PSU is legit
the dell optiplex has 3 internal things
sata, m.2 and m.2 wifi/bluetooth
the sata is a cheap ssd as boot drive
the m.2 is a cheap drive just as a share/cache
the m.2 wifi has wifi, but will replace it with a 2.5gig once someone gifts me a 10gig switch with 2.5 gig ports (there is one i like but dont feel spending 300€ now)
the hdd is powered from the 12V rail, so is the shit router and switch
this + BMS is inside the 3d printed box
they are Samsung INR21700-33J 3270mAh - 6.4A
https://eu.nkon.nl/samsung-inr21700-33j-3270mah-3-2a-z-tag.html?___SID=U
Typ 12.0Wh Min 11.4Wh
im charging them only to 20v i.e. 3.3V so let's go with 30%?
12Wh*12Batteries/100*33 around 50WH
( never done this math because i dont care)
so rough estimate would be a good hour with 30W or so usage
sounds good for me. once i start using solar i'll be getting free energy plus higher capacity and solar backup...
wow a lot of effort for that :P I think getting a legit PSU on ebay would probably be cheaper and less complicated :P
I mean, yeah, I am all for reusing what I have and being creative with it, but that is a bit extreme even for me :P
yes but then i need a 220V UPS and yet another fucking power brick
my hard drive, router and switch are all 12v
from 3 power bricks i have 1 (boosts efficiency as well)
edit the dell power brick is like 50€ as well
Aha, now I get it. Still I wouldn't go to that extreme if I were in your shoes.