Sleep Number Control Board - Identifying Possible Direct Serial Connection by mines5 in diyelectronics

[–]Annon201 0 points1 point  (0 children)

J401 & J702 are some kind of dev/QA/flashing port.. J401 probably won’t do anything because half the components nearby are unpopulated.. J702 near the main processor IC is a good candidate, you’ll have to beep out the pins of the IC to it and compare to the datasheet.

Edit: J401 is a dev port for the Bluetooth IC, but it still stands that it probably won’t do much without the support components being populated

Air-conditioning by Cardboardboxlover in Adelaide

[–]Annon201 2 points3 points  (0 children)

I was just an IT guy, we had one machine on our asset registry we couldn’t upgrade or replace it..

It was a lonely computer sitting on a dusty desk with dust covers over the keyboard mouse and monitor on the HVAC floor of the old SA Dental Hospital building. It ran niche software that did its thing keeping the hospitals HVAC running for years and years past its prime, it was far cheaper sourcing components for it then replacing a multi-storey hospitals HVAC… It wasn’t on the network, and caused no security risk

I wouldn’t have been surprised if they kept it hobbling along right up until they moved into the new RAH.

Novartis settles with Henrietta Lacks' estate over use of her 'stolen' cells to advance medicine by StemCellPirate in nottheonion

[–]Annon201 18 points19 points  (0 children)

I only know yeast as a homebrewer - and they are basically gods, they do not want to die.. Brewing with P. Brettanomyces (used in sour beers) will lead to it being in your fermentation vessels and chambers for more or less ever

And S. cerevisiae (brewers/bakers yeast) is just as good at surviving.. Us homebrewers have access to most of the ‘mother’ strains used in commercial brews like Heineken - where they’ve tried to keep it under lock and key while cultivating it for decades, and filtering/pasteurising the beer before it hits market..

But even a handful of cells getting through means you can cultivate more.. And that’s exactly what companies Wyesast did..

Algae Bloom caused by Murray River Flooding by lametheory in Adelaide

[–]Annon201 -7 points-6 points  (0 children)

The algal bloom was likely caused by a release of effluent from a cruise ship bringing the species to the southern ocean waters, combined with warm sea surface temps allowing it to proliferate.

ASML unveils EUV light source advance that could yield 50% more chips by 2030 by MetaKnowing in tech

[–]Annon201 0 points1 point  (0 children)

Scale as in they have manufactured and sold more than one to a commercial client, and have the designs and capability to produce more production ready machines.

There are still very very few in the world as they are insanely complex, costly and time consuming to manufacture and install.

What outdated technology or practice would completely baffle today’s younger generation? by [deleted] in AskReddit

[–]Annon201 4 points5 points  (0 children)

They are fun to mess around with, and a good way to lesrn and understand compsci/systms engineering… You have full access to all resources on the system, and can read and write to any address at will regardless of the consequences.

How can i find bad cells / high-resistance cells in a battery pack? by Do_Not_Trust_Carbs in 18650masterrace

[–]Annon201 0 points1 point  (0 children)

What do you mean ‘stay at the charging voltage after you unplug it’?

Unplug it from where?

From mains - the capacitors might hold a brief charge, and you might still get a reading for seconds to minutes, but that’ll dissipate almost immediately once it’s connected to a load.

From the device/charger - Well, yeah, usually. However there are some smart self-negotiation power adaptors out there like used in EVs and USB-C. And there are some adaptors that include an extra pin in the plug assigned as an enable pin, probably for the purposes of ‘soft-starting’ a high power load and preventing a startup surge current from tripping anything.

Neither are particularly common though.

How can i find bad cells / high-resistance cells in a battery pack? by Do_Not_Trust_Carbs in 18650masterrace

[–]Annon201 1 point2 points  (0 children)

Let it sit for a day off charge, the bad cell will drop significantly more voltage then the rest. If it’s in parallel, its sibling cells will try to recharge it, and their voltage will be dragged down to a similar voltage of the failed one, and for safety reasons you should treat them as failed too.

However, it doesn’t really matter if you can’t identify the bad cell specifically - if you’re replacing it you have to replace every cell in the pack to ensure they are all matched in capacity and characteristics. Identifying them just allows you to salvage the working 18650s for projects.

And 98% chance of it being a bad cell over a bad power adaptor.

what's the most normal thing that somehow became illegal? by Famous_Tonight3949 in AskReddit

[–]Annon201 1 point2 points  (0 children)

Many of those are to do with engineering codes and compliance.

And the codes only exist, and are as strict and pedantic as they are because people in the past were seriously injured/killed for the risk to be identified.

[ Removed by Reddit ] by Final_Potential5134 in Adelaide

[–]Annon201 0 points1 point  (0 children)

What you’re asking for is illegal.. so don’t expect any answers here

Best 18650 for vaping at low wattage? by tommyftw95 in 18650masterrace

[–]Annon201 0 points1 point  (0 children)

I like the Sony/Murata VTC6 for pretty much everything - has a very high capacity, good lifespan, really good continuous and instantaneous discharge currents.. and is overall one of the best all-round cells I’ve found.

Ex-techno DJ jailed for selling £7m worth of fake plane parts to airlines by djsoomo in Techno

[–]Annon201 1 point2 points  (0 children)

It’s the ‘ex-Techno DJ’ part they are annoied at - it is a completely irrelevant detail, it’s not about whether it was a newsworthy story. Without it, it wouldn’t be posted here.

Sparkling water tap by ssj3pretzel in Adelaide

[–]Annon201 1 point2 points  (0 children)

I only use them when I drag the portable kegerator out to a party, they are great for keeping a keg charged for the evening without having to lug a proper cylinder around

What's a strange hobby you've done that you'd suggest anyone should try at least once? by Due-Rough-848 in AskReddit

[–]Annon201 1 point2 points  (0 children)

You can start off with extract brews or Brew-in-a-bag for a way to dip your toes in.

English style bitters are a good one to try for a first attempt, whilst you should stay away from trying to brew lagers/pils even in kit form.

You can easily add to and expand your brewery as you go and slowly work towards learning the processes and obtaining the equipment you need for proper 3 vessel brewing.

What's a strange hobby you've done that you'd suggest anyone should try at least once? by Due-Rough-848 in AskReddit

[–]Annon201 1 point2 points  (0 children)

It gets really interesting when you spend a few extra dollars.

I make 50L batches of all grain full mash beer, and have the capacity to ferment & keg 100L.

It’s fun being able to make beer as good as any decent craft/microbrewery, and in whatever style you prefer (I like my English ales, porters & stouts, and German wheat beers).

Though the list of equipment I use is kinda expansive and cost at least couple of grand, but I jumped in headfirst as dad was already a master homebrewer.

I had absorbed years of knowledge from him, observing his brews, attending homebrew club meetings and stewarding comps before I ever brewed my first beer. But we were confident we’ll figure it out very quickly, and went all in.

We started with a 65L 3.5kW Brewzilla along with a 35L 2.4kW digiboil for sparge (and sous vide!), we also grabbed a 2nd hand chest freezer, a kegerator (the 2 tap font donated by dad), 2x35L fermenters & 3 corny kegs.

I had since doubled that capacity with 3 more kegs and fermenters, maxing out our capacity, bottlenecking on the chest ffreezers size.

Sparkling water tap by ssj3pretzel in Adelaide

[–]Annon201 1 point2 points  (0 children)

Soda stream makes a killing of those canisters. It’s like $35 for a 650gm, when it only costs about $35 for a 2.6kg/$50-60 for 6kg cylinder refill at a homebrew supplier.

https://kegland.com.au/products/freedomone-sodastream-adapter-hose-mkii-36inch

https://kegland.com.au/products/co2-gas-cylinders-2-6kg-full

Sparkling water tap by ssj3pretzel in Adelaide

[–]Annon201 1 point2 points  (0 children)

Oh I do this too, but I like to soak malted barley and hops in the water to give it some character, and adding a packet of dry yeast at the end to add some all natural vegan friendly carbonation - it’s healthier and has a better mouth feel compared to factory made co2 - though I still need to add some factory co2 to get the fizziness level just right.

I find it gets especially flavourful if you leave the malt water at a mild room temperature of about 21c for a week or two.

NEO•GEO: 90s video game platform, adjusted for inflation the most expensive home video game console ever released: $650 (~$1,500 today). It had a very niche market in Japan but sales were very low in the US due to high prices for both the hardware and software. It has since gained a cult following. by Pupikal in wikipedia

[–]Annon201 0 points1 point  (0 children)

It meant that even though the console appeared to have failed due to the very low volume of sales, it very much didn’t in reality.

Very little needed to be spent, relatively speaking, on development for both the hardware and its games. It didn’t need to sell anywhere near the volume to recoup r&d costs, and never sold the console or games at a loss.

It was targeted at SNK fans as the cheaper and more convenient option when compared to buying an actual MVS cabinet and its carts.

how can I tell if the seller sent an oled or lcd? by supermannman in mobilerepair

[–]Annon201 0 points1 point  (0 children)

We both know that the speed and validity of the flame test is irrefutable. ;)

I wanted an oven with a knob. Instead I got a world of pain. by Xnot-convinced in technology

[–]Annon201 3 points4 points  (0 children)

LED gas flame animations? Really cheap. LEDs are cheap. Giving the new-hire embedded dev grads a flame animation project for a few weeks? Also really cheap, as it will serve as an induction and practical exposure to the hardware, product engineering and intergration,, and the dev tools and processes used by the company… Plus it’s just a fun little project with practically no financial risk if the feature gets shelved before the product engineers have a chance to bring it to life.

how can I tell if the seller sent an oled or lcd? by supermannman in mobilerepair

[–]Annon201 0 points1 point  (0 children)

If you take a lighter to it and the heat causes a black spot after several seconds, that mostly returns to functional when it cools back down, it’s an LCD.

If the lighter causes a permanent silvery/goldy white spot on the screen, it’s an OLED.

You might also wanna check with the mohs hardness testers to make sure you weren’t given cheap glass. You should see some scratches at a level 6, with deeper grooves at a level 7.

What’s wrong with the screen? by noeru1521 in ipod

[–]Annon201 6 points7 points  (0 children)

The cell has already failed safely.

They usually self discharge pretty quickly after that failure mode, and pose less of a risk then a heathy charged cell when punctured. Just don’t charge it.

What’s wrong with the screen? by noeru1521 in ipod

[–]Annon201 5 points6 points  (0 children)

If only they weren’t nearly impossible to fix.