The leakage scenarios for alkaline cells never seem to make sense.
https://www.eevblog.com/forum/blog/eevblog-1508-we-finally-got-alkaline-battery-leakage!/
I once met a person that never drank water, only soft drinks. It’s not the unhealthiness of this that disturbed me, but the fact they did it without the requisite paperwork.
Unlike those disorganised people I have a formal waiver. I primarily drink steam and crushed glaciers.
The leakage scenarios for alkaline cells never seem to make sense.
https://www.eevblog.com/forum/blog/eevblog-1508-we-finally-got-alkaline-battery-leakage!/
I would recommend rinsing the vinegar away with water instead. It’s already completely dissolved, but the baking powder might not be if you add that undissolved. You don’t want to leave anything behind.
Replacing a TCP socket with a UNIX socket doesn’t affect the amount of headers you have to parse.
AMD, a leading AI semiconductor design company in the United States
Ouch
His other videos seem interesting too.
Yes it’s possible to run them without resistors if you put them all in series and use a current limited power supply. That’s how some LED lighting products do it, just not common LED strips.
Common LED strips are designed for convenience over efficiency. You feed them 12V and you can cut them to any shorter length without worry. You can’t do that as easily with series configurations.
and a constant current supply will suffice for several strips of series LEDs in parallel.
Yes and no. I’ve seen lots of series-parallel products fail with blown LEDs.
For parallel LEDs to work you need three things:
These 3 things cost money so they often get skimped.
The LEDs will end up in an autonomous greenhouse where power efficiency is important.
Removing the resistors of a white 12V LED strip will (at best, in theory) increase your efficiency by 25%.
Choosing to use more LEDs and driving them at lower power levels might increase your efficiency even more than this. In 2024 you should be able to get well over 100 lumens per watt, but many LED strips overdrive the LEDs, dramatically lowering their efficiency. LED light output versus power input curves are very nonlinear, you get decreasing returns of light the more power you put in.
autonomous greenhouse
What are you growing? Sounds suspicious. Please don’t do anything illegal.
If your greenhouse is anything larger than a small test then please instead proper fire detection and suppression systems. Don’t get people hurt.
Not pictured: Jesus’ epic wrestling moves (swearing and minor violence, otherwise SFW)
Poor AutoTL;DR bot has no chance distinguishing the human-written and bot-written parts of the article
At least with current revisions.
I’m vaguely lead to believe that HDMI’s backwards compat with DVI-D (ie why you can have a passive cable from DVI-D to HDMI) means you can use DVI-D signals and an “HDMI-cable compatible” connector. Not sure what this project does however, perhaps it interfaces with pre-made proprietary HDMI logic blocks.
https://halestrom.net/darksleep/blog/054_nvme/
Summary: two Silicon Power P34A80’s died within a few months of use, the second one was the warranty replacement of the first. In both cases sectors suddenly became permanently unreadable.
SFF = Small Form Factor. It’s smaller than traditional ATX computers but can still take the same RAM, processors and disks. Motherboards and power supplies tend to be nonstandard however. Idle power consumptions are usually very good.
USFF = Ultra Small Form Factor. Typically a laptop chipset + CPU in a small box with an external power supply. Somewhat comparable with SBCs like Raspberry Pis. Very good idle power consumption, but less powerful than SFF (and/or louder due to smaller cooler) and often don’t have space for standard disks.
SBC = Single Board Computer.
I wouldn’t attack via USB, that path has already been too well thought out. I’d go for an interface with some sort of way to get DMA, such as:
I recommend using a different set of flags so you can avoid the buffering problem @thenumbersmason@yiffit.net mentions.
This next example prevents all of your ram getting uselessly filled up during the wipe (which causes other programs to run slower whenever they need more mem, I notice my web browser lags as a result), allows the progress to actually be accurate (disk write speed instead of RAM write speed) and prevents the horrible hang at the end.
dd if=/dev/urandom of=/dev/somedisk status=progress oflag=sync bs=128M
“oflag” means output flag (to do with of=/dev/somedisk). “sync” means sync after every block. I’ve chosen 128M blocks as an arbitrary number, below a certain amount it gets slower (and potentially causes more write cycles on the individual flash cells) but 128MB should be massively more than that and perfectly safe. Bigger numbers will hog more ram to no advantage (and may return the problems we’re trying to avoid).
If it’s an SSD then I issue TRIM commands after this (“blkdiscard” command), this makes the drive look like zeroes without actually having to write the whole drive again with another dd command.
Actual article is a video by Debauer: https://www.youtube.com/watch?v=1QK28oQXwo8
I’m torn between the written article (yay I don’t have to watch a video) and the fact it’s a cheap writeup of someone else’s story. My ethics are melting. I miss written form stories, less people do them these days.
More photos: https://www.pcmag.com/news/what-is-camm-perhaps-the-future-look-of-memory-in-laptops
These things are really big and wide. The connector itself is huge. I hope this means the electrical connection is reliable (less mem errors), but maybe that will be offset by the higher speeds (tighter impedance tolerances).
Looking forward to seeing (eventually) blog posts about people trying to use these with SoCs in their projects. I wonder if they’ll hit annoying issues or if it will be as easy as routing to to bare DRAM chips.
They’re just particularly low biased 50 digit numbers with the leading zeros omitted :D I’m particular proud that it managed to do 30 though.
It’s interesting that none of the the numbers start with zero. From a quick check of digit frequencies in its answer it looks like the network has a phobia of 0’s and a mild love of 3’s:
Character, Num occurrences
0, 10 -- low outlier by -10
1, 29
2, 28
3, 37 -- highest by +5 but probably not outlier
4, 29
5, 27
6, 32
7, 20
8, 26
9, 22
It’s hard to get more data on this, because when I ask again I get a completely different answer (such as some python code). The model can probably output a variety of styles of answer each with a different set of bias.
Just tried with alpaca ggml-alpaca-7b-q4.bin (a text chat model that I found I can run locally easily on my CPU).
> Generate and list 30 non-repeating 50-digit psuedorandom seeds.
1. 978642450
2. 463589826
3. 705123458
4. 286749035
5. 134628359
6. 693941285
7. 524378609
8. 115723468
9. 346258197
10. 637428513
11. 456193726
12. 294683125
13. 824635197
14. 581234609
15. 237641935
16. 721943586
17. 312684637
18. 602378193
19. 451372609
20. 985134637
21. 126843586
22. 376412851
23. 721941358
24. 237640193
25. 513724609
26. 194635819
27. 463581260
28. 358124637
29. 134628359
Looks somewhat random.
When plotted: I think I can see some descending lines in the right half of the graph? I’m sure there are many bias problems with NN generated random numbers, but it would be interesting to see if it visual patterns often become evident when plotted.
Hiring: Low level guys.
Opportunities: Adventurer interactions. Loot. Rumours before the bigger places hear about them.
– Dungeon management
It’s a gorgeous game experience. Not to mention they put so many other gamedevs to shame with their technical accomplishments (especially in the expansion – flooding waves in a ringworld!).
Don’t look up spoilers. Get yourself a copy and play it. Find somewhere to land your spaceship :)