Still have my copy on the bookshelf. Only for nostalgic reasons obviously.
Readit Newsandoma commented on Amiga Hardware Reference Manual 3rd Edition (1991) archive.org/details/amiga... · Posted by u/doener
andoma commented on Flunking my Anthropic interview again taylor.town/flunking-anth... · Posted by u/surprisetalk
You be you. You will find your people and your place.
It may just be that Anthropic isn't it.
I had a company that was like a white elephant for me for a long time. Got in there, and I will say: It was one of the worst experiences I had in my career.
Not all that glitters is gold, and happiness is often only discovered when it is gone. If you can avoid those two pitfalls in life. You'll do well better than me.
Hear hear. I joined a company which made a prosumer product I truly loved using. However, shortly after jointing i realized the company was nothing that I hoped for (Ancient tech, toxic culture, micro-management. All red-flags you can imagine). Fortunately a small startup made a blipp on my radar and after interviewing with them, as I apparently made a good impression, I got an offer so I immediately switched. I didn't realize it at the time but this happened to be a major inflection point in my career (technologically, socially and economically) for which I will be ever thankful. Not exactly OP's experience but my takeaway is that sometimes, even if you think you want to work at a place, it might not be the best option for you. There are so many more opportunities out there.
andoma commented on Maximizing Battery Storage Profits via High-Frequency Intraday Trading arxiv.org/abs/2504.06932... · Posted by u/doener
> However, because it is physically not possible to charge and discharge the battery at the same time, such trades have to be prevented.
The authors are observing that, if electricity prices are negative and your battery is not perfectly efficient, then you would like to charge and discharge simultaneously to get paid for wasting energy, but you can’t.
This is a silly limitation. Surely the power electronics or even just the control algorithms in a BESS could be slightly modified to consume power, get warm, and not transfer any current to or from the battery cells, effectively taking advantage of the BESS’s heat sink to sink excess power and sell that service.
More seriously, in a world with occasional negative prices, you would want your battery to be able discharge itself, without exporting power, in a controlled and power-limited manner so as to avoid overheating. And the optimization algorithms should factor this in. I wonder if real grid-scale BESS systems have this capability.
Our house have geothermal heating (heatpump conncted to 160m drilled hole, pretty common in Scandinavia). The heatpump supports having a coolant loop for cooling the house in the summer. Thus the heat pump pretty much exchanges heat from the house to the well (heating it up ever so slightly). It would certainly be possible to insert a resistive dummy load on that loop and just store that heat in the bedrock as well.
andoma commented on Intel RealSense Stereo Depth Cameras intelrealsense.com... · Posted by u/1sembiyan
Is this going to finally replace all the Xbox Kinects everyone uses?
The final version of the Kinect, called "Azure Kinect" was based around the ADSD3100 time-of-flight sensor from Analog Devices. The Kinect has since been abandoned by Microsoft. However, Analog offers a match-box sized module ADTF3175 integrating the ADSD3100-sensor, optics and VCSEL (940nm laser illuminator) with MIPI 4-lanes output. A devkit [1] also exist and is available from mouser, digikey, et al.
[1] https://www.analog.com/en/resources/evaluation-hardware-and-...
andoma commented on Developers should embrace creative coding again figma.com/blog/why-develo... · Posted by u/carlyayres
I wish we would see more developers embrace desktop native apps again. We have such powerful machines, only to use them as glorified dumb terminals
At work I've introduced various in-house tooling based on Dear Imgui and people are just blown away by how fast everything is. "I didn't know computers could be this fast and responsive". I say, well just think about the fact that the machine at your fingertips can do billions of calculations per second and it shouldn't be that much of a surprise really.
andoma commented on Beyond BLE: Cracking Open the Black-Box of RF Microcontrollers [video] media.ccc.de/v/38c3-beyon... · Posted by u/hcadam
Some microcontrollers have much better documented rf subsystems. Onsemi has a well documented RSL15 radio. Nordic has docs and there's an open source ble implementation from apache too.
Yup, Rolled my own BLE Peripheral stack on NRF52 relying on nothing but Nordic's docs and the BLE specification. It's not fully feature complete but works well enough for me to communicate with the mcu from my MacBook using l2cap connections.
How are kernel or application updates applied to buildroot-installed systems?
At work I've developed a buildroot based "embedded OS" för intel machines. Our buildroot system gets bundled into the kernels initramfs and we boot straight into that from UEFI. For upgrades we kexec() into a new kernel-image so generally we never write anything to disk (The original image can still be upgraded if deemed necessary). All applications are then regular docker images. All this is managed by an in-house developed deamon. Works quite well. That said, we're not really using buildroot for anything other than building a few libs + this in-house daemon so I'm leaning towards getting rid of it and just rely on busybox+musl+a few other deps built using a simple script.
andoma commented on Apple Maps on the web launches in beta apple.com/newsroom/2024/0... · Posted by u/ingve
One probably small thing: Having a cohesive ecosystem where you can share links makes a map app more useful.
I’m on both iOS, macOS and Linux. One thing that’s keeping me using Google Maps is not having Apple Maps in the browser (on Linux). This definitely could lower the switching threshold.
Note that it is equally dangerous to send paraphrased messages using the same key (which is called sending messages "in depth"). This was used to crack the Lorenz ("Tunny") cipher. Interestingly Bletchley Park hadn't gotten their hands on a Lorenz machine, they cracked it based on speculation. And it lead to the development of the first tube computer, Collosus (which influenced the ENIAC). Nowadays we use nonces to avoid sending messages in depth, but nonce reuse can be similarly disastrous for systems like AES-GCM. For example there have been Bitcoin hardware wallets that reused nonces, allowing the private key to be extracted & the Bitcoin stolen. (To be clear, cryptocurrencies and AES-GCM are completely different systems that have this one property in common.)
https://en.wikipedia.org/wiki/Cryptanalysis_of_the_Lorenz_ci...
https://www.youtube.com/watch?v=Ou_9ntYRzzw [Computerphile, 16m]
As an aside does anyone know why it's called "in depth?" I'm guessing that it's related to Bletchley Park's penchant for naming things after fish? But possibly also their techniques that involved arranging messages together and sliding a stencil over them to visually spot patterns (so they're sort of overlayed)? I tried some casual searching but it's a very generic phrase and so difficult to search. It's defined in the The 1944 Bletchley Park Cryptographic Dictionary but it doesn't give an etymology.
https://www.codesandciphers.org.uk/documents/cryptdict/crypt... [Page 28]
The computer museum also exhibits post-war computers all the way to modern machines. I'd say that museum is more for the geeks while the Bletchley Park museum is definitely worth a visit even if you're not into computers.