The latest blog posts to take off on Hacker News. 3,044 posts.
How to connect a USB4 SSD to get better performance from an Intel Mac. Should you buy a Thunderbolt 4 hub, or a Thunderbolt 5 dock? Do any of these live ‘up to’ their claimed performanc…
The RAM myth is a belief that modern computer memory resembles perfect random-access memory. Cache is seen as an optimization for small data: if it fits in L2, it’s going to be processed faster; if it doesn’t, there’s nothing we can do. Most likely, you believe that code like this is the fastest way to shard data (I’m…
In November 1996, Apple released the Power Macintosh 4400 with a starting price of $1,725. Also sold as the Power Macintosh 7220, it’d be easy to write this machine off as just another grain of sand on the beige beach that was Apple’s product line in the 1990s. I mean, just look at this thing, pictured here with an…
Making Apple Watch functional with Android.
I loved my Nokia 5110 and I wonder if it was possible to breathe new life into this long-shelved and still-memed mobile phone. As it turns out, not only is it possible, but it's going to be a lot easier than I anticipated.
Semi-custom silicon is a bigger problem than Nvidia.
How I replaced my son's school timetable app with an e-paper
We're delighted to share our electronic creation with you this holiday season, six long years after the previous one. The theme this time around is "powered by the holiday spirit", and it's an exercise in energy harvesting.
My computer setup attracts attention when I'm out and about. This has two effects: engineers [1] ask me about it, and everyone else ignores me. These effects are not undesirable, but further testing is required.
This is the 3rd post in the My journey with Home Assistant focus series. I’m the happy owner of a couple of Philips Hue connected lights for a some years. Some of them are colored, some of them regular. In addition, I bought a sensor to go along with the light I installed in my toilets: it turns on automatically when…
Muh freedumbs on muh hardware!
The performance of photodiode amplifiers can be improved in a clever way.
Cores are the new megahertz, at least for enterprise servers. We've gone quickly from 32, to 64, to 80, to 128, and now to 192-cores on a single CPU socket! Amazon built Graviton 4, Google built Axiom, but if you want your own massive Arm server, Ampere's the only game in town. And fastest Arm CPU in the world is…
Nothing says ‘80s pop’ like a DX7.
Photography is arguably my oldest hobby. I’ve loved taking photos for as long as I can remember. I reflected on my first encounter with digital photography in 2003 in a recent post, but I’m old enough…
tl;dr Raspberry Pi engineers tweaked SDRAM timings and other memory settings on the Pi, resulting in a 10-20% speed boost at the default 2.4 GHz clock. I of course had to test overclocking, which got me a 32% speedup at 3.2 GHz! Changes may roll out in a firmware update for all Pi 5 and Pi 4 users soon. My quest for…
How to program the Commodore 64 in BASIC, Assembly or C using Microsoft Visual Studio Code on Mac, Windows and Linux!
To test if a display interface works we often don't want to use a huge framework like GTK or Qt. This article shows an easy way on how we can use a framebuffer directly on a DRM graphics driver under Linux.
Last year, I created Fake Parallel Printer , a tool to capture the output of the parallel printer port of old-ish test equipment so that it can be converted into screenshots for blog posts etc.
Seemingly, at the drop of a hat the morning of Friday, Nov 15th, Deye-branded inverters across the US were intentionally bricked.
1974 MIT Aluminum Bicycle Project, we describe some of Marc’s design, the frames he and Harriet built in Shawn Buckleys IAP course, and how these played a role in the Klein vs. Cannondale patent litigation in the mid-1980s.
The Raspberry Pi Compute Module 5 is smaller than a credit card, and I already have it gaming in 4K with an eGPU, running a Kubernetes cluster, and I even upgraded my NEC Commercial display from a CM4 to CM5, just swapping the Compute Modules! The Compute Module 4 was hard to get for years. It launched right after the…
There have been some past rumblings on the internet about a capacitor being installed backwards in Apple’s Macintosh LC III . The LC III was a “pizza box” Mac model produced from early 1993 to early 1994, mainly targeted at the education market. It also manifested as various consumer Performa models: the 450, 460…
A guide to the operating principles, techniques and technology in lidar systems for self driving cars.
I was studying the silicon die of the Pentium processor and noticed some puzzling structures where signal lines were connected to the silico...
A 192-channel phased array microphone, with FPGA data acquisition and beamforming/visualization on the GPU. Phased arrays allow for applications not possible with traditional directional microphones, as the directionality can be changed instantly, after the recording is made, or even be focused at hundreds of…
A magazine on a floppy from 1986.
The other day I saw the launch of Apple Vision Pro, the whole thing was very interesting, but one thing that caught my attention was the finger input. It seems very intuitive, by using the finger pinching as sort of like a cursor or mouse input. I figured I want to try it out, so I took it upon myself to create it.
Wireless and firmware hacking, PhD life, Technology
