under a full synthetic load of all hardware you are gonna have a hard time getting a high wattage, everything is hyper optimized for low power draw well as far as i can go without modding the PSU to run off a battery directly
when i say hyper optimized i mean everything (net switch, speakers, DACs, audio amp) that is near the PC (server + VM router) that runs on 5/15v is powered from the computers PSU mainly to increase the demand on the PSU to push it higher up the units efficiency curve, the only thing that is not powered by the PSU is a piece of ubiquity hardware that uses a PoE...
evilkitty
Badcaps Veteran
Last Activity: 08-06-2026, 08:49 PM
Joined: 11-20-2017
Location: VA
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That was why i also did testing with a floor fan and a light bulb (75W incandescent) and i was able to see a visible drop in brightness and hear/feel the difference with the box fan
note that a 75W bub should be more current than my system uses when not running prime95...
I can't see a reason why the UPS caused my system to power cycle or why i woke up and it was powered off (like the UPS turned itself off) and i am seeing good voltage at the battery under load
my RMS meter broke, seems like a switch/dial issue but cleaning contacts did nothing, considering...Leave a comment:
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UPS output voltage
This week i had one of my UPS units (Back-UPS 650 G1) give me some trouble (it caused my system to loose power several times, either rebooted it or resulted in it being powered off; note the BIOS is configured to boot the system when power is restored)
The battery seems fine as far as i can tell (12.5v under load), but i am only getting 90V AC when the battery is in use, 85V when there is a 75W load and the unit says the battery is good
my other unit of the same model has similar behavior but the voltage seems to go back up after dipping down (based on visual brightness of a light... -
how poorly does that have to have been implemented for that to be a issue? i find it hard to bevel what should just be a few lines of css a concern
i was mainly asking for a iron recommendation and any other stuff i really need eg tweezers, flux, low melt solder, stuff i would need to something like replace a power stage/mosfet on a GPU
for the zd-915 i have new caps to replace the crappy stock ones, making my own filters would be cool, but i have spare parts for it...Leave a comment:
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Tools and supply reconndations
Is this still a/the recommend iron?
https://www.amazon.com/KSGER-Tempera.../dp/B07PYFSCJ9
*For use at a desk w/ cheap replacement tips available (if i need to get brand names ones for a specific use that is fine)
i would like something good for SMD parts on boards (not messing with BGA comments)
a tip recommendations would be nice
where should i get some flux and low melt solder from?
other tool recommendations?
Other tools i have or ordered:
ZD-915 de-soldering gun
Atten ST-862D... -
well leaving them in the garage for that week+ did not seem to affect the reading, that said right now at my desk the humidity reading is very close to what my nearest DHT22 reads (within margin of error for the sensors), the one i have in the garage i do not trust the humidity reading of, last i checked it was reading +20% compared to the BME280, maybe the horrible humidity skewed it's reading, the one in the attic does not have reading at high, but that one gets heated up a lot in the day while the one in the garage just gets warm and stays near the same temp and gets the humidity this area...Leave a comment:
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stand by looks to be 0.50 mA, had to use my meter for that one the usb tool can't even close to that low (i think it bottoms out at 0.07A), that said my jank adapter under load only showed it pulling about 250 mA and my usb tool confirmed that, either my jank adapter or multimeter is limiting the current...Leave a comment:
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When your mom is complaining about her new cheap lights
My Mom bought some cheap motion sensor lights on wish... then complains about about batteries and this thing chews though them, well it uses 4 AAA batteries and a pack of rechargeable ones is about 13 USD
well since it uses 4 AAA and rechargeable are 1.2v and non-recharge at 1.5 this thing must work with 4.8-6v, I'll shove a USB cable on it, infant i will use a broken phone charge cable... dam this thing uses 430 mA and they made it battery powered...
lets ignore the fact that i thought the board fit both ways... and the wire color is reversed going to the board... -
sounds with a try, the OD has plenty of tolerance from the look of it, the ID is probably fine 1.5 - 2 mm (maybe you can stretch the material b4 punching the center out so it will go back smaller than the punch?)Leave a comment:
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apparently you can recondition them with ~5 days of 25C and > 40% humidity
well i do not think that will be hard to do...
...Leave a comment:
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I have not had issues reading the sensor, but i do not trust the humidity reading, my DHT22s all read around 10% higher, not sure what sensor is full of it (DHT22 ~25C = 99%; BME280 ~25C= 77%; weather says 26C @ 89%)
note that all of my sensors are from cheap places, my dht22s were $1 each on ebay, got every unit the seller had
seems to be working on my breadboard at these much worse humidity levels, will give it a while b4 i re-solder it
this is the lib i am using: https://github.com/mbuesch/bme280-upyLeave a comment:
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I think this is the one: https://www.aliexpress.us/item/3256805956739680.html
the other F segments in the array get brighter when it acted up, F Pin is next to the other 2 affected pins, and it is was working fine on my breadboard last night, gonna need more testing though to be sure it was a internal issue
controlled via a MAX7219 from the same supplier
i do agree it looks like a open circuit as if there was a short the other F segments should have gotten dimmer not birghterLast edited by evilkitty; 07-17-2024, 01:23 PM.Leave a comment:
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i have used tesseract on ubuntu before from the command line as well in some scanner software (there are undocumented known bugs i need to fix)
eg: somehow multi page scans broke for my mom, there was another but rather than mention it i went and fixed it cause it seemed like less work
sometimes i have to crop a image or upscale the image to get good output sometimes just a basic upscaling in gimp is enough though
* https://github.com/nagadomi/waifu2xLast edited by evilkitty; 07-17-2024, 11:57 AM.Leave a comment:
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Flux causing high resistance short?
Now that my de-soldering gun is working i was able to remove this panel i made about a week before i noticed a issue the F segment of digits 2 and 3 would go out, digit 2 would go before digit 3, but would come back after the humidity got down from running the ac (note the weather outside is 30.5 / 74%; panel data is from a BME280)
Temp is on the left humidity is on the right
i noticed when the humidity got up one or 2 of the center digits on the right panel would loose a segment
The pin out looking down from the top is (note this is common cathode)... -
wow i could not even find metric products on the manuf. website for the companies i have looked up...Leave a comment:
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As someone who grew up in the US this measurement system is garbage, the only thing that is fine is temperature and that is ONLY for the weather and the thermostat and i do still think C is better as 1C is smaller temp range than 1F
everywhere i have ever looked for a name brand metric dill bit has nothing at any price, what brands exist on the other side? here for the big ones are (excluding store brands) Bosch, Dewalt, Milwakuee, and you can find Greenlee at stores that target contractorsLeave a comment:
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my 0.0765" bit fits loose but it does not fall off
it a metric bit from ali-expess, cause finding metric bits in the us is horribleLeave a comment:
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New parts arrived today
0.067" thick (looks like 1.5mm)
0.552 diameter (looks like 14mm)
0.075 inner diameter (looks like 2mm)
note that my dad's good calipers only have the US measurement standard, metric values where taken with a ruler
it is hard to use calipers on a object that flexesLeave a comment:
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i looked for a silicon washer there, could not find anything right (OD is very off)
maybe 2x8x2
https://www.aliexpress.us/item/3256804844657671.html
i did buy the part from ebay/spain so i will be able to post measurements...Last edited by evilkitty; 07-08-2024, 08:54 AM.Leave a comment:
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i'm sure i have under 10 hours... i have not even worn a tip out...
my flat washer is MIA... must have never see out fall out when cleaning
if they can make them let me know, if these fail that often I'll get some as well and maybe we can get volume pricing...Leave a comment:
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