A lot of the software components under the hood in Linux are replaceable.
So you have a bunch of different CPU and disk IO schedulers to suit different workloads, the networking stack and memory management can be tweaked to hell and back, etc etc.
But look how fast we can make those little fuckers go!
It’s just like slot car racing, round and round, but… you know… faster. And yeah, it’s more expensive than a regular slot car track, I guess. But still, those particles will beat any slot car you care to pick! So there’s that. Welllll not those fancy slot cars with them high performance motors, I mean, that’s a completely different ballgame there, we can’t compete with that.
But still, those particles whizzing around, it’s gonna be pretty cool. I reckon we should do it.
So anyway, thank you for reading my financial proposal for the SuperLHC.
The voltage range depends a lot on cell construction, temperature, load or charge rate, and chemical mix.
For example “lead acid” batteries with lead and sulphuric acid have a cell chemistry voltage of 2.05 volts but their nominal range is 1.8 to 2.4 volts per cell. Translating that to a 6 cell “12 volt” car battery gives you a range of 10.8 to 14.8 volts.
Cat 3 is a thing and is basically unshielded twisted pair. You can abuse it quite a bit from its voice grade days to cram a few hundred megabits of VDSL over it if it’s only from your house to the curb.
Eh? You’ve got your thoughts backwards on the pins.
The inside of a USB C socket is simply a central tang. The inside of a USB C plug has the flex pins that grip said tang and provide the electrical connection. The USB plug, on the cable, is designed to wear out before the socket and it’s easily replaced.
The issue however is that some manufacturers skimp on the mechanical mounting of the socket on their device and flexing of the connector + socket damages its connection to the board.
Funnily enough, lightning connectors are designed the other way around with the components that wear out inside the expensive device. How strange…But that’s coming from a company that doesn’t even want to make a robust covering for the wires in their cables.
Except for using the pen, IR-cameras, booting from USB…
Reminds me of android ROMs about a decade ago.
“My new L33tM@st3r ROM has just been released! Now with kernel tweaks for buttery-smooth performance and major improvement to stock battery life! Comes with it’s own tuning app so you can adjust it the way YOU want!
(Not presently working: bluetooth/wifi/camera/NFC/dialler/headphones but everything else is awesome!!)”
Mmm I have a general dislike of systemd because it doesn’t adhere to the “do one thing and do it well” approach of traditional Unix systems.
It’s a big old opaque blob of software components that work nicely together but don’t play well with others, basically.
Edit: but it solved a particular set of problems in serverspace and it’s bled over to the consumer Linux side of things and generally I’m ok with it if it simplifies things for people. I just don’t want a monoculture to spring up and take root across all of Linux as monocultures aren’t great for innovation or security.
Accessing that from my phone shows the actual site content for about 3 seconds and then an endless array of “popup and notification blocked messages” as well as the usual combination of “oh noes your PC has three dangerous viruses click here to resolve” type redirects.
Is this just a cunning way to weed out the normies or can I expect the same kind of thing from their allegedly-excellent app? Because they’re not leaving a good impression right now.
The human brain is hardwired for an “Us vs. Them” viewpoint. As Bush once said, “You’re either with us, or you’re against us.”
Advertisers, politicians, and those that seek to influence, they know this. They don’t project any shades of grey or balance into their arguments. They attempt to “match groups” with you, and then point out that other group, over there, aren’t they terrible, we should do something about that.
So you get videos going, “Look at those shoplifters, doing wrong things! We’re glad that they’re getting their just desserts, aren’t we?”
They don’t show anything that might evoke some empathy in their target audience. You don’t want people to identify with your enemy, you want them to identify with you.
Perhaps slightly adjust your logic a little and see what it does.
Read from the sensors first, then enable and connect to wifi, send the data, then disconnect. That would reduce the maximum power draw as only one function is active at once.
Small edit: I have a MagTag ESP32 board with circuitpython that can’t read onewire devices while the wifi is active. Whether that’s because of supply instabilities when wifi is transmitting, or interrupt conflicts, or just plain poor programming in the onewire drivers or the wifi drivers, I don’t know. But reading the devices first and then connecting to wifi and sending the data afterwards works.
I remember helping a teacher at school who had installed a CopyIIPc card on one of our computers. They used it to make everyday copies of the master disks of the copy protected educational software we used in our room full of Sperry IBM compatible PCs.
The card went in between the floppy controller and the drive and could do a pretty good job at duplicating all the physical copy protection tricks of the time.
They copied a lot of stuff, not for pirating reasons but simply because they were literally 5 1/4" floppy disks back then and school kids were not kind to them. Either it was simply jamming them into the drives, or touching the exposed disc surface, or chucking them around the room, those disks didn’t last long.
As the answer in the link explains, it’s adjustment of your scaling factor to the nearest whole pixel, plus a loss of precision rounding to/from single/double floating point values.
Chrome mobile put up a pretty good fight. I have been meaning to put Firefox + ublock on my phone, maybe I’ll stop being slack and finally do it today.
It’s generic foam pipe insulation, approximately 3/4" thick.Originally there was also a 3-4 meter section of pipework from the collector output to inside the roof that was completely uninsulated, I’ve gotten that sorted.
I bought the place a couple of years ago and after replacing the seized circulating pump early last year I was pretty disappointed with the system’s performance.
At that point I put onewire sensors on the tank and lines on the ground level and measured it for a few months and didn’t see much heating at all from the collector.
I couldn’t get to the collectors for a long time, not having a three storey ladder, but I got suspicious after sunny + windy days resulted in very little heating. Finally got up there about three months ago to discover that bare section of pipe and insulated that.
Collector temperature I haven’t measured using the original analog sensor yet, I just let the original controller do its thing to get a baseline. But currently in a “warm” Australian spring the maximum outlet temperature at ground level is a brief peak of about 65 degrees C at around 1pm. Going off the circulation rate of the pump it’s probably 40 litres of water at that temp before it starts dropping back down in the afternoon.
Insulating that bare section of pipe improved performance but it’s still not fantastic, so now it’s time to drive the pump with my own algorithm and see if I can improve things.