@czardestructo@lemmy.world avatar

czardestructo

@czardestructo@lemmy.world

Reddit refuge, escentric engineer and serial hobbyist.

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otl, to selfhosted
@otl@hachyderm.io avatar

Follow-up: OpenBSD routers on AliExpress mini PCs

I got lots of replies to the last post showing the little OpenBSD internet gateway setup (super interesting; thanks!). Here's more info and pictures:
https://www.srcbeat.com/2024/02/aliexpress-openbsd-router/

Something I've been meaning to share for years now.

@selfhosted

czardestructo,
@czardestructo@lemmy.world avatar

Do you know what it’s idle power usage is? I’m guessing below 10W?

People here who are very popular in their school/workplace, what actually makes you feel happy?

So normally people like me get extremely happy if you say something like ‘nice shirt’, however it got me wondering about people who receive compliments and gifts all the time, what makes y’all happy? I presume it gets kinda annoying after some time?

czardestructo,
@czardestructo@lemmy.world avatar

I’m naturally charismatic. I’m lucky, don’t know how or why it just comes natural. But I hate getting complements. It makes me uncomfortable, I don’t need or want them. What drives me is my own desire to be better and get better. I don’t need external influence, my internal pressure is already many times greater than what most get exposed to. At least that’s my interpretation.

czardestructo,
@czardestructo@lemmy.world avatar

Bingo. Give everyone a safety net in terms of mental health and finances and I’m convinced the vast majority of our problems go away. Even topics outside of this one.

andrew, to technology
@andrew@andrew.masto.host avatar

Bose introduces their new Ultra Open Earbuds. “Their cuff-like fit leaves your ears totally open so you can still hear the world around you”

https://www.bose.com/p/earbuds/bose-ultra-open-earbuds/ULT-HEADPHONEOPN.html

@technology

czardestructo,
@czardestructo@lemmy.world avatar

It’s the later. A small speaker pointed into your ear while not blocking it.

czardestructo,
@czardestructo@lemmy.world avatar

You haven’t even heard them and are making grand assumptions. The bass is great at low to medium listening levels but rolls off as you increase the volume due to physical limitations.

czardestructo,
@czardestructo@lemmy.world avatar

Bose actually made the first music playing sunglasses. It’s where the open ear bud idea came from.

Mission MS 200 Schematics / Repair pointers

I have a Mission MS 200 Subwoofer where the power supply has stopped working. I was quite happy with it, and would like to try to fix it, also I don’t have the money for another. I have taken it apart and have narrowed the fault down to the PSU. I have visually inspected the solderings and components, and nothing obvious is...

czardestructo,
@czardestructo@lemmy.world avatar

The initial debugging you did, how did you root cause to the PSU? Your debugging aside I would check the fuse and MOV first. Did you have any bad weather recently? Lightning will take out your fuse and MOV and they’re an easy fix. Google what a Metal Oxide Varistor looks like. Next I would check for any damaged or blackened parts, then check the capacitors for bulging and capacitence values. Anything after that will get heavy on the EE side of things.

czardestructo,
@czardestructo@lemmy.world avatar

Wow OK, great pictures. First I will say the PCB and components look super clean and the design, components and overall design looks very high quality. I’m kind of surprised this isn’t working because it doesn’t appear to be low quality, quite the opposite. The board is also super clean and well care for. I didn’t expect all the PCBs to be broken out, there appears to be a dedicated PSU board and I assume an amplifier board separate. Usually everything is all on one board. Perhaps you can order a new PSU from a different vendor if you figure out what voltages it should output, is there any clear marking on the output where there is no voltages to tell you what should be there?

OK so you tested the MOV and its 470kohm that is GOOD. It should be high resistance unless its damaged and then it typically fails as an electrical short. Also you would see physical damage and blackening. Next thing I would check is the fuse, but your PSU is fancy and uses an NTC. It will be low resistance until too much current flows which heats it up and then it’s resistance climbs higher and higher to choke the current flow to a safe/manageable level. You should check that and make sure its resistance is low, less than 20ohms or so. Capacitors also look good and you tested them. Unfortunately for you, this might be a vexxing or random failure :(

Did you happen to call the company and ask for help or a repair program? It looks high enough quality that they might stand behind it and mail you a new PCB.

czardestructo,
@czardestructo@lemmy.world avatar

Cool, let’s see what states in the US are paying their fair share into the federal government, if you take more than you contribute then you loose your electoral votes.

czardestructo,
@czardestructo@lemmy.world avatar

Agreed. To add to this because the traffic is being blocked it keeps retrying so it’s inflating the traffic size. I have about 14 tplink WiFi switches on a vlan and my pfsense rule for NTP is less than 6 megabytes. OP is conflating legitimate NTP traffic with Tor.

czardestructo,
@czardestructo@lemmy.world avatar

I did that. I popped off the soft flaps at the bottom of my fenders and attached longer flaps from a semi rigid plastic I had so that it almost touched the ground. Looked goofy but kept me dry.

Cursed 32 Gig NVMe drive? (lemmy.world)

Can anyone explain the purpose of a 32 gig NVMe SSD? I think it’s quite an apple thing to install such a stupidly tiny drive into a computer, but on the other hand it doesn’t seem right. This can’t be a system drive can it? But what else could it be? This is like an impractical, high-speed USB drive that requires...

czardestructo,
@czardestructo@lemmy.world avatar

Early centrino laptops had a 16-32gig solid state drive in addition to mechanical disks purely to speed boost time. It was part of the spec in order to advertise Intel Centrino. SSD was too expensive to do the whole disk so just a simple operating system essentials raid type setup made booting incredibly fast for 2010 standards.

czardestructo,
@czardestructo@lemmy.world avatar

If you can solder and heat shrink then search for “usb c trigger board” on ebay and get some for like $5. They will request either 5v, 9v, 12v, 15v or 20v. I’ve found for most older battery powered barrel jack devices a voltage that is an little under spec works just fine. Ive convertered everything in my house and now own a nice USB PD battery bank, life is good.

czardestructo,
@czardestructo@lemmy.world avatar

Perhaps not the same but I own a 150 year old home in America and I had foam insulation blown in. The insulation it provided was minor but what it helped tremendously with was drafts and air exchange. On older homes air leaks and sealing any cracks and drafts can potentially save you more money than adding actual insulation depending on how leaky it is. Food for thought though it might not help you.

czardestructo,
@czardestructo@lemmy.world avatar

I don’t know why this simple fact is so often over looked. If you have to work two jobs, commute, play with your kid, do laundry, make dinner, clean up then try and relax there is NO TIME to nurture your damn kid. As a dad it’s easy to see how single moms and blue collar parents have to constantly stick their kids in front of a iPad because they have nothing left to give.

czardestructo,
@czardestructo@lemmy.world avatar

This is a plug for China. It will work fine in US outlets but it’s intended for that Chinese market hence the lack of holes.

czardestructo,
@czardestructo@lemmy.world avatar

+1 this is exactly my experience. My install must be 5-6 years old at this point and its on the rails. I’ve braved many php updates…

‘Amazing’: Queensland mum uses electric car to ‘save’ son’s life with dialysis during power outage (www.theguardian.com)

An electric vehicle owner has used her car’s emergency power system to run her 11-year-old son’s lifesaving dialysis machine and another has ridden to the rescue of his neighbours after devastating storms cut power in south-east Queensland....

czardestructo, (edited )
@czardestructo@lemmy.world avatar

Yes I’ve been doing this with my prius for over a decade. The 12V ‘alternator’ on the prius is enough to sustain about 1000w which is plenty for a fridge and some lights. The engine only turns on once an hour to top off the main battery.

czardestructo,
@czardestructo@lemmy.world avatar

I work on consumer electronic ear buds. Frigging ear buds, and we support this…

czardestructo,
@czardestructo@lemmy.world avatar

USA here. Can we please just start taxing fuel appropriately and remove subsidies? If fuel just cost what it actually costs (like the EU) then most of the problem goes away because only people who actually get work done with their truck’s will afford to run them and only while getting a job done. Currently 2/3 of the heavy duty trucks I see are grocery haulers for little boys.

czardestructo,
@czardestructo@lemmy.world avatar

I’ve been running the Joplin server for over a year with clients on four laptops and three phones and share notes with my wife and its wonderful. There are certainly quirks and sometimes sync issues but by and large I’m really happy with it. There seems to be one cluster of notes I have that always irritates a fresh client sync and it shows up at 50 conflicts but I work through it. Also my notebooks are huge and the first sync can take an hour. It’s a lot slower than I’d expect.

czardestructo,
@czardestructo@lemmy.world avatar

I’ve been through too many exodus, this post hits hard and true. Been using the net since 95 and have been a community refuge too many times. I’m really hoping federation takes off because I’m tired of rebuilding. Not sure I’ll try again if this doesn’t pan out.

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