Hacker Newsnew | past | comments | ask | show | jobs | submit | 05's commentslogin

> use a $200 camera and photograph your keyring from a couple blocks away

Rayleigh criterion: to resolve an angle of 4E-6 rad (key bitting step is 0.015inch =~0.4mm , two blocks is 2 * 200ft =~100m), you'd need a ~140mm aperture lens. Can you really buy one (with a camera no less) for $200?


Well, TIL I'm shitty at the private eye thing, lol. You'd need to get up close, then, or have really good cameras. You're not going to need .4mm precision so long as you can see the differential pattern, though. Memorizing a 5 digit number, each digit between 1-6, and you can remember any kwikset key at a glance, and so on. At most you'd need to print 10 possible solutions if you can't find an absolute difference between lowest and highest points, but most of the time the pattern will have 4-6 potential keys it could be.

Anyway, locks and keys are inconveniences that keep people from casually abusing civil boundaries, is the point, and not all reasons for overcoming those are nefarious.


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).


Used lenses from 30 years ago plus a DSLR from 15 years ago plus a suitable adapter will do the job, and may be in the price range with a bit of bargain hunting.

You can run Klipper on any Linux SBC with a USB port, RPi works but so does an old router that supports OpenWRT, a cheap Android TV box that could be flashed to run Linux, or any of the OrangePi/Banana Pi/Alliwinner H3 boards. You don't really need hardware UART because most of the printer boards you'd be using have either native USB or USB to UART converters. For that pedal, would an old Android tablet that supports USB OTG work? Because that's got to be much cheaper, and with much better SDK.

Correct. But when I looked into it a few years back fir OrangePi it was not as easy as downloading raspbian. All the images made for the pi would not work, you had to download a kernel from another place or something like that? Sorry I don't remember the details, but it was not as easy as a pi.

How much cheaper then 50 bucks can a tablet get? With the pi I can quickly in a hacky way connect rotary encoders with female-female dupon cables, use a python GPIO library made for raspberry pi.

https://media.discordapp.net/attachments/1461079634354639132...

I can also use it for Zynthian. And if I'm done with it, I can build a new printer :P


I think the part you're missing, is how expensive the Pi is now.

Buy one with a psu, and you're 100 to 150.


Just a few weeks ago I bought a pi5.

See my other comment, pi5 2 GB is about ~10% more expensive then when 3 or 3b got released when factoring in inflation. ~60 EUR including 25% VAT.

With PSU it's 77 EUR including 25% VAT right now.

4 GB version + case + 64GB SD + PSU = 135 EUR, but I don't need that much ram, disk space or the case. When I put it into a 3d printer I also don't need the PSU.


I looked back in your post history a couple of pages, didn't see said comment.

However, there is no way it's 10% more expensive than the original Pi with inflation. It's easily double, if not more.

You can buy low end tablets significantly cheaper now. A tablet with a screen, more ram, storage, a battery.

A Pi is a rip off, for what it costs to build.

It's not like they make the OS or kernel either. They basically copy and paste Debian, and add some fluff modz, most of it OSS they didn't write.

https://www.amazon.ca/Expansion-Octa-core-Processor-Touchscr...

https://www.amazon.ca/Raspberry-Pi-8GB-2023-Processor/dp/B0C...


My mistake, it was indeed 20% percent, aka 10 bucks.

rPi3 40 EUR form 2016 is now ~52 EUR adjusted for inflation.

Compared to 62 EUR for the current model rPi 2Gb.

Cheapest tablet with larger then 1gb ram locally is around ~85 EUR. All prices including 25% VAT.


> When I put it into a 3d printer I also don't need the PSU

Unless you want your printer to power up on demand, then you need a separate PSU and an SSR (and you still need a buck converter because printers don't supply 5V at required amperage).


Sorry, correct. I meant I don't need THE official raspberry pi 5A USB C PSU. It still needs power.

You tell me how to automatically sync photos across iOS+mac devices using non-Apple services. I'll wait. (hint: it's a monopoly, you can't use other services). Yeah, I know you can do a manual backup to e.g. Google Photos. It's not the same as seamless bidirectional sync.

OneDrive supports automatic syncing of photos from iOS to the Mac.

Will it actually do it in the background on iOS though? It's been years since I had an iPhone, but basically you had to keep the phone awake to keep the sync moving for any application that wasn't Apple's.

And it's the software I hate the most on my mac

Provided it…actually works, which shouldn’t be a high bar, but it’s one drive we’re talking about here.

And provided it doesn’t lose your stuff. Again, should be a core competency, but it has a track record of messing that up.

And arguably here, you’re trading one giant for a net-worse one?


Dropbox works also. It would be cool if one could do it via usb like other phones before.

3uTools

> No highres 3d scan of your home being phoned back

You should look at a teardown of one of those sensors. It's a 1D lidar (if you can even call it that, until recently all of those were not ToF but more triangulation/reflection angle) being spun, no high res scans of anything can be achieved using that tech :)


Because drones without explosives strapped to them are so effective.. not to mention they spend 99.9% of the time in storage with battery disconnected, so easy to make a bunch of them attack at the same time (because once people know the drones are malicious it’s game over for the attackers).

pure idiocy.


I just use a unique address for each service. Any email that gets leaked or is getting unsubscribe resistant spam is added to /etc/postfix/denied_recipients :)


Appending "+label" to the username part of an email address is legal and will be delivered to the username mailbox.


Doesn’t sound like a very fun hobby, TBH.


no the op, but I find great joy in looking though who sends me spam (based on the unique email used to sign up for each service)

I think it scratches a similar itch to putting up a game camera to see what sort of vermin are running around in your back yard.


You inevitably catch LexisNexis shitting in your herb garden and leaving squirrel carcasses lying about…


It has sleep current of 200microamps, so no longer than 40 days…


Blame STM. Those clones copy (..among other things) the naming convention from STMicroelectronics parts like stm32f103c8t6/stm32f103cBt6. Guess what's the only difference between those.

Oh, and .. since STM likes binning/product segmentation, there's a good chance that if you ignore the reported flash size and still try to flash the full 128K, it works on those models..


Treats are good and all but you will probably get better results with clicker training and splitting the job into simple parts. Fetch is pretty complicated and even dogs often have issues with it - our dog did just fine on the 'chase the toy' part - mostly due to strong prey drive - but then just ran away with it :). Took months to get it working.. Also cats usually lose interest quickly, so short sessions repeated more often will give better results.


Yeah I did clicker training for her to learn fetch and she know how to. She just seems to have zero association between the "fetch" word and action.


"no give, only throw"


> learning quickly, so their work quality is eventually higher than Cursor can work out in one shot.

This sounds almost word for word like The Onion’s classic: Secretary Of Labor Assures Nation There Still Plenty Of Jobs For Americans Willing To Outwork Robots

[0] https://theonion.com/secretary-of-labor-assures-nation-there...


Wow. That is ... too painful and true to life to really be funny at this point. But, ok, still funny.

To be fair, I meant something a little different -- something like -- learn how to be a robot priest who can get it to follow the desperate prayers of humans. And, like, how to unstick the robot arm when it accidentally punches through a wall. Etc.

Not that that is particularly comforting, in an existential sense. Maybe buys you a couple years till you have to pivot again.


If "a couple of years until you have to pivot again" is all new grads have to hope for, they might as well forget it

Instead they should start learning how to shoot guns and build pipe bombs.


Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: