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1,104 karma · joined June 10, 2015

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05··on DIY open-source ultrasound hardware on the rp2040/rp2350
Well, parallel port adc capture has nothing to do with PIO either - on STM32 you would just set up DMA on a GPIO port, then capture 16bit data. The real question is what RP2040 is going to do with 120MB/s of data.. and the answer is, it can't process it or send it over (12Mbps aka 1.5MB/s) USB. So, would only work in low duty cycle pulse mode, no streaming.
05··on DIY open-source ultrasound hardware on the rp2040/rp2350
Honestly what they're describing can be done on any MCU without PIO - set up clock division/PLL to provide ADC clock, use that same clock for timer source, set up a timer channel to trigger the pulse, set up a timer channel to trigger ADC DMA capture start, start the timer.

Congrats, now you have capture synchronized to pulse start "providing the sub-microsecond timing needed for ultrasound acquisition".

05··on MacBook Neo Deep Dive: Benchmarks, Wafer Economics, and the 8GB Gamble
That sound bug being there for so long would be pretty embarrassing for Apple if they haven't lost the ability to get embarrassed about the shitshow that OS X... i mean, macOS has become a long time ago..

Low memory handling is better that what Linux does, we can all at least agree on that :)

05··on What the Hell Was Going on with Cigarette Ads in the 70s? (2024)
Turns out using less engine bleed air is good for fuel economy, so now it's 50% recirculated HEPA filtered (which does nothing for the co2 contents) air.
05··on Tell HN: Dont use Claude Design, lost access to my projects after unsubscribing
You get two years of 'free' (readonly) storage if you unsubscribe from google, it's very unusual to just nuke all access immediately.

> are required by compliance to remove customer data within X amount of time at the end of the contractual relationship.

that's a very bullshit justification, we're not talking about the 'delete account' button - especially since claude has a free tier.

05··on Amazon employees are "tokenmaxxing" due to pressure to use AI tools
Yeah just had Codex/Gemini write me nrf52 bootloader that fit in under 4k flash sector size with OTA and DFU support (well, app does OTA download then the bootloader validates and decompresses the image). Works best if you let them use OpenOCD on a real device, then they can iterate until it starts working.

I didn't even need that bootloader, just didn't like the fact that Adafruit one takes too much space :)

05··on Waymo Drives Off with South Bay Man's Luggage
> My guess would be the Jaguar's CAN bus being the weak link

Puzzling because trunk open sensor is already a thing and making sure it’s triggered after a ‘open trunk’ command is issued is not exactly rocket science:)

05··on DeepSeek v4
..and drones https://www.fcc.gov/document/fcc-updates-covered-list-add-ce...
05··on South Korea police arrest man for posting AI photo of runaway wolf
Maybe it’s because wolves are genetically dogs and will cross breed and the conservation program supposedly needs to increase the numbers of that particular breed and not just wolves/dogs in general?
05··on The FAA’s flight restriction for drones is an attempt to criminalize filming ICE
Heard of ALPR networks?
05··on Audio tapes reveal mass rule-breaking in Milgram's obedience experiments
> were in fact ideological committed to the cause and should be judged accordingly.

With good enough propaganda machine, any percentage of people would end up 'ideologically committed to the cause' but I don't think they should necessarily 'be judged accordingly' regardless of the larger context..

05··on Bird brains (2023)
I don’t even know how you’d compare their intelligence, it’s so apples to oranges.. Most birds build nests so they have an advantage in tool use and that’s what gets them ahead in some tests. On the other hand, have anyone tried to train corvids to herd other birds/animals? I bet BCs will have an advantage there:)
05··on Philly courts will ban all smart eyeglasses starting next week
There’s another problem with this because a camera with a mic cable cut would look from the outside exactly like a camera with mic cable intact, and maintenance is a thing, so eventually it’s bound to be replaced by a camera with a working mic either by mistake or “by mistake” on purpose. There’s a trust issue here since people who would be affected by the presence of a mic won’t be able to easily visually verify that it’s disabled.
05··on The Cognitive Dark Forest
Not counting by total terrestrial vertebrate biomass.
05··on Full network of clitoral nerves mapped out for first time
> seems to indicate that FGM reconstruction actually seems to have negative outcomes post-surgery.

> Longitudinal data indicate that approximately 22% of women who undergo clitoral reconstruction experience a post-operative decline in orgasmic experience [25, 26]

From [25] abstract: Most patients reported an improvement, or at least no worsening, in pain (821 of 840 patients) and clitoral pleasure (815 of 834 patients)

So, I think the quote needs to be interpreted as surgery, even though beneficial on average, still having a pretty high percentage of negative outcomes (22%) and nerve mapping potentially helping reduce that.

05··on Drone attack on parked U.S. Army BlackHawk in Iraq
Which only protect a small area, so drones just need to target less obvious things. Meanwhile your guns shoot birds and once in a while - an occasional bystander. Attackers are always advantaged since you have to protect _everything_ and they only need to target what's left unprotected. Some drones just drop grenades, I somehow don't see your shotgun hitting either the drone (too high) or a grenade (too fast and small).
05··on Parallels confirms MacBook Neo can run Windows in a virtual machine
Or disable SIP and sudo nvram boot-args="maxmem=8192"

I tried, DaVinci Resolve still works :)

05··on Apple's MacBook Neo makes repairs easier and cheaper than other MacBooks
Video (use SponsorBlock): https://youtu.be/M6jBXI6CR9s?t=156

Article: https://www.ifixit.com/News/100352/we-hot-wired-the-iphone-1...

Discussion: https://news.ycombinator.com/item?id=41623251

05··on US Court of Appeals: TOS may be updated by email, use can imply consent [pdf]
Surely even the poorest of Americans can pay a couple bux a month for a seedbox?
05··on New iPad Air, powered by M4
It’s a shitload of glue around the screen, so yes, it’s worse.

https://www.ifixit.com/Guide/iPad+Air+5th+Generation+Battery...

05··on Following 35% growth, solar has passed hydro on US grid
0%? Extremely unlikely. [0] Is your plan as an evil overlord to implement the stack ranking killing the evilest 10% generation after generation for the good of humanity?:)

Also hope you’re going global since other populations will quickly outcompete the docile sub-population if given chance.

[0] https://en.wikipedia.org/wiki/Genetics_of_aggression

05··on Following 35% growth, solar has passed hydro on US grid
> We would line in a very different country if, after the civil war, every slave owner was strung up from a tree and their estates were redistributed to the formerly enclaved.

Yeah, but not for the reasons you think. A country that would just kill a significant share of its citizens for something that used to be legal very recently is not going to end up just fine. Moreover, due to normal distribution of human traits the next generation would have the same percentage of 'evil' with or without your well-intentioned genocide.. go figure.

05··on Following 35% growth, solar has passed hydro on US grid
Counterpoint: https://en.wikipedia.org/wiki/Sharashka
05··on FreeBSD doesn't have Wi-Fi driver for my old MacBook, so AI built one for me
- have AI write a windows filter driver to capture all hardware communications

- have AI reverse engineer Windows WiFi driver and make a crude prototype

- have AI compare registers captured by filter driver with linux driver version and iterate until they match (or at least functional tests pass)

not exactly rocket surgery, and windows device drivers generally don't have DRM/obfuscation, so reverse engineering them isn't hard for LLMs.

05··on Across the US, people are dismantling and destroying Flock surveillance cameras
It’s easy to build your own, but it’s impossible to build one to be as stable as a DJI one, or as cheaply. E.g. with an FPV drone hitting the lens would be much harder (but you could use spray instead of a stick to make it easier). Removing remote id ‘chip’ is plain impossible since it’s implemented by the same radio that does video link.
05··on Vermont EV buses prove unreliable for transportation this winter
Sure, all sorts of things are possible at half energy density. In bus use case, a heater would be lighter.
05··on Beginning fully autonomous operations with the 6th-generation Waymo driver
If automation fails on a track, there are many people dead and toxic chemicals spilled everywhere - just look at US freight accidents. With orders of magnitude more mass, 3x less friction than tire/asphalt and no way to steer, many avoidable accidents are now also fatal. Now you need grade separation so this whole thing isn't compatible with pedestrians and bikes. But sure, keep posting this tired joke.
05··on FAA institutes nationwide drone no-fly zones around ICE operations
You’re talking about bargain bin analog FPV drones? Most people can’t operate them and even for an experienced operator it’s far from the best tool for the job of filming armed thugs..I mean ICE..

You’d need a digital system with a gimbal, and the DJI O4 Pro alone will run you $200+. For dual lenses with different zoom levels and feed switching it’s getting pretty expensive very fast.

05··on Bugs Apple loves
On the same note, airdrop doesn’t work when multiple users are logged in. It’s rocket science to switch airdrop advertisements to currently active user, I guess..
05··on Lock-Picking Robot
Yeah, seeing how better and cheaper cameras are sold every day I thought that it might be plausible.. and then it apparently isn't.. yet. Maybe with a cheap telescope :)

A covert camera placed near the keyhole is probably a better solution anyway, because most people don't flash their keys when just walking on the street (maybe when unlocking a car, but with keyless that's becoming rare).

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