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Designing a guitar with hot-swappable pickups
I made a custom guitar with hot-swappable pickups
New
The latest blog posts to take off on Hacker News. 3,045 posts.
Hardware & Electronics
Any year
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Challenges Building an Open-Source E Ink Laptop
In a previous article, I discussed my intention of Building an E-Ink Laptop . In this article, I want to introduce EI2030 and how we are building an open-source eink laptop and its challenges.
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Zenreader: A 4.7" E-Ink RSS Reader
I have been long wanting a PDA of sorts with an E-Ink screen that allows me to read stuff on the Internet without eye strains. But the Kindle really sucks as a newsreader device because the experimental browser never works correctly.
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PiDP-11 – Recreating PDP-11/70 with Raspberry Pi
The PiDP-11 is a modern replica of Digital Equipment Corporation’s influential PDP-11 minicomputer. Before, we had a computer on every desk and in every home–and long before they were in every pocket–computers were large, intimidating, and locked in special rooms at universities and corporations. The PDP series paved…
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MirkoPC – a Raspberry Pi CM4-powered computer made in Poland
The MirkoPC is so far the closest thing to a full-fledged Raspberry Pi desktop computer: Based on the Compute Module 4, it has a full-size M.2 M-key slot, allowing the Pi to boot from reliable and fast NVMe SSD storage, a built-in headphone amp and line out, 4 USB 2.0 ports, gigabit Ethernet, two HDMI ports, and a…
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Dissecting the Apple M1 GPU, Part III
After a few weeks of investigating the Apple M1 GPU in January, I was able to draw a triangle with my own open source code . Although I began dissecting the instruction set, the shaders there were specified as machine code. A real graphics driver needs a compiler from high-level shading languages (GLSL or Metal) to a…
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Power consumption of Game Boy flash cartridges
Flash cartridges (= "carts") are commonly used to run Game Boy ROMs, such as homebrew games or dumped officially released games, on real hardware. Different kinds of flash carts with various features and performance characteristics have been available for a long time, but flash carts have in general the reputation of…
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Turning an iPad Pro into a classic Macintosh
I’ve started work on the next in my 1-bit Woodblocks series: “Tekagami” (Ito Shinsui’s “Hand Mirror”). So it’s a good time to talk about how I turned an iPad...
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Mac Chimes of Death
We’re all familiar with the Mac’s startup chime. While it has changed over the years, it has greeted users with its friendly tone for decades. What you may not know is that for years, the Mac also came with a death sound, that would play when the machine was unable to properly boot. And they are glorious: Macintosh II…
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Peloton cuts back on Apple Watch support
With one of Peloton's latest updates, they have cut back the ability to connect the Apple Watch with the Bike+ Bootcamp Classes (in addition to it being already disabled for for Strength and Yoga Classes)
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Setting up Starlink
In March, I got an email from SpaceX saying Starlink was available at my address, and I could pre-order. I paid $500 for the equipment, plus $25 for a Volcano Roof Mount, and $99 for the first month of service, and a few weeks later, I got the kit you see in the image above. I was a little too excited about getting…
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The Web MiniDisc App (2020)
Get control of your MiniDisc device thanks to WebUSB and WASM
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Hacking a $200 Under Desk Exercise Bike
Due to COVID, I haven’t been getting my usual amount of exercise this year. To help with that, I decided to take a chance and order an under-desk exercise bike to get some extra cardio. The bike I bought is decent: it has good tension, stays in place, operates quietly, and offers Bluetooth connectivity for tracking…
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VNC client running on a coffee machine
Published: 08-04-2021 | Author: Remy van Elst | Text only version of this article
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Home-Built Scanning Tunneling Microscope (2015)
Scan Head STM Tips Vibration Isolation Electronics Software Scans Image Gallery Useful Links This project is my attempt to build a low-cost scanning tunneling microscope (STM) capable of atomic res…
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This Blog is now hosted on a GPS/LTE modem
Ethical Hacking and Cybersecurity Blog
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Raspberry Pi Floppy Controller Board
If there’s one criticism I hear more often than any other about the pi, it’s “ I wish my Raspberry Pi had a floppy drive “. It’s really shocking that the pi doesn’t have the ubiquitous 34-pin floppy header that we all know and love. How else are you supposed to interface your Tandon TM100-2A or your Teac FD-55BR or…
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The sixtyforgan: Commodore 64 equipped with a spring reverb
The sixtyforgan is a Commodore 64 equipped with a spring reverb, featuring the keyboard layout of a chromatic button accordion.
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Piano Practice Software Progress
First an apology. I started this project because during the first 9 months of the COVID-19 pandemic business was down to a fraction of what it was before then, and I had a lot of time on my hand. But that has changed now and there is a lot of work in my ‘day job’, so I don’t have a whole lot of time to work on the…
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Can My Water Cooled Raspberry Pi Cluster Beat My MacBook?
It's time to put my water cooled Raspberry Pi Cluster to the test. I put it up against my MacBook and a Windows PC to see which performed best
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Counting cycles and instructions on the Apple M1 processor
When benchmarking software, we often start by measuring the time elapsed. If you are benchmarking data bandwidth or latency, it is the right measure. However, if you are benchmarking computational tasks where you avoid disk and network accesses and where you only access a few pages of memory, then the time elapsed is…
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Intel Unleashed, Gelsinger on Intel, IDM 2.0
New Intel CEO Pat Gelsinger delivered a keynote with the right strategy, the right tactics, and most importantly, the right spirit to return Intel to success.
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The Raspberry Pi can boot off NVMe SSDs now
When the Compute Module 4 was released (see my CM4 review here), I asked the Pi Foundation engineers when we might be able to boot off NVMe storage, since it was trivially easy to use with the exposed PCIe x1 lane on the CM4 IO Board. The initial response in October 2020 was "we'll see". Luckily, after more people…
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Apple’s M1 processor and the full 128-bit integer product
If I multiply two 64-bit integers (having values in [0, 264)), the product requires 128 bits. Intel and AMD processors (x64) can compute the full (128-bit) product of two 64-bit integers using a single instruction (mul). ARM processors, such as those found in your mobile phone, require two instructions to achieve the…