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Analysis of Magic Leap 2 at SPIE AR/VR/Mr 2022
Magic Leap 2 Presentation Was the Hit of the Conference Kevin Curtis (Curtis), Magic Leap’s VP of Optical Engineering, presentation “Unveiling Magic Leap 2’s Advanced AR Platform and Re…
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Home lab beginners guide (2021)
My home lab in a 12U rack as of March 2026. What is a Home Lab? Think of a home lab as a place where you can fail in the privacy of your own home. As
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Reviving the Pakon film scanner
Introduction
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How the 8086 processor's microcode engine works
The 8086 microprocessor was a groundbreaking processor introduced by Intel in 1978. It led to the x86 architecture that still dominates de...
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The Hidden Worlds of the Klein Tools TI250 Thermal Imager
A deep dive into hidden data encoded in the BMP files saved by the Klein Tools TI250 thermal imager.
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Furiosa's Cat Feeder (2016)
Furiosa’s Cat Feeder
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Hardware-accelerated Linux virtual machines on jailbroken iPhone 12 / iOS 14.1
I unlocked Hypervisor.framework on my jailbroken phone and modified UTM, a popular QEMU port for iOS, to run arm64 Linux in a VM at full native speed. …for the clickbait - and to show iPhone’s untapped potential.
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Reverse engineering the 1988 NeXT keyboard protocol
Summary : Steve Jobs's NeXT computer company made a keyboard in 1988. With no prior electronics experience, I tried to get it to work over USB. To do so, I had to go way deeper than I ever expected - all the way back over 100 years to broadcast radio standards from the 1920s. I learned tons and tons, and had a lot of…
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My Mega65 has arrived
This week I returned from a business trip overseas for the past few weeks. This is why I haven't been able to blog this month until now. But...
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An M1 for Curl
A generous member of the wider curl community stepped up and donated an unused Mac mini m1 model to me to be used for curl development. Today it arrived at my home. An 8C CPU/16GB/1TB/8C GPU/1GbE model as per the sticker on the box. The m1 mac mini, still wrapped in plastic. Apple is not … Continue reading An m1 for…
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My thoughts on the Framework laptop
Like many others in the open source community, I was very intrigued by the idea of the Framework laptop , a modular laptop designed to be repairable and upgradable. With a bunch of designs, schematics and documentation released as open source and a product that's legitimately competitive with the proprietary…
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IKEA Symfonisk Gen2 Amp Modification Guide – A Much Cheaper Sonos Amp
A guide and video on how to modify an Ikea Symfonisk Gen2 Speaker into a general purpose Sonos Amplifier.
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New two-factor authenticator: Commodore 64
Multi-factor authentication is ripe for disruption. SMS 2FA is inherently defective. Phone authenticators get stolen. Security tokens get lo...
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Hijacking infrared to make a dumb device smart
I own a very old ‘flat’ screen television from 2009. One of the reason this TV is still kicking around is because I have a strange sentimental affection for it. Another is that I have written automation for it that works really well and it would be a pain to migrate away from it.
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Building a panel out of e-ink electronic shelf labels
A blog post on building a panel with multiple electronic shelf labels (ESL).
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Linux on a 486SX
Linux on a 486SX A year or two ago, I came into posession of a 1993 Compaq Presario 425. It's a Mac-ish all-in-one with a 14" color (S?)VGA screen capable of 800x600 in full 256-color glory. On the inside it features a 25MHz i486SX (the sort without a floating-point unit), paired with 20MB of RAM - a significant…
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Making nice-looking and interactive diagrams for your PCBs
I have always liked pinout diagrams like this: Arduino Nano Pinout. Source: http://www.pighixxx.com/test/wp-content/uploads/2014/11/nano.pngThey work quite well, there is all the information and they look nice. However, they work only when you have pins on two sides of the PCB and once you squeeze too much information…
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The death of the PCIe expansion card
With the AM5 platform from AMD on the horizon, five major motherboard manufacturers have annonced their flagship motherboards with the X670E chipset. Some of them are having fun with this generation’s multi-faceted step into “five”: AM5, PCIe Gen 5.0, DDR5, 5nm process, boost clocks over 5GHz, you catch the drift. But…
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Recreating sci-fi terminals using VHS
I heard about VHS recently. It’s a tool for creating recordings of command-line tools, so you can create little demos and tutorials about how to use them. You can write a script to run comman…
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Ghost in the ethernet optic
A few months ago I stumbled on a tweet pointing out a kind of SFP optic that claimed to be smart, made by a Russian company Plumspace . After going through their Smart SFP product listings I was on-board and decided I needed to have some of them.
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Creating aerial imagery with a bike helmet camera (GoPro) and OpenDroneMap
This technical guide details how you can create your own orthorectified (aka satellite view/bird mode) imagery, point clouds and 3D models of streets with nothing but a 360 degree camera mounted on bicycle helmet, and the open source photogrammetry software OpenDroneMap.
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Why Apple Will Switch to ARM-Based Macs (2014)
When Steve Jobs announced the transition from PowerPC to Intel processors in 2005, he revealed something that, in hindsight, seemed obvious to everyone who didn’t anticipate the switch: There are two major challenges in this transition. The first one is making Mac OS X sing on Intel processors. Now,
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Reverse engineering Xiaomi air purifier NFC stickers
For a very thorough write-up on how this all works , please visit : https://unethical.info/2024/01/24/hacking-my-air-purifier/
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I built my own Sega Genesis (Mega Drive) hardware dev kit from scratch
How I built a Sega Mega Drive dev kit from scratch: reverse engineering the cartridge slot, a homemade logic analyzer, a RAM cartridge and boot firmware.
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Homebrew Bluetooth Headphones
Instructions to build your own 3D printed bluetooth headphones from readily available parts. All you need is a 3D printer and basic tools.
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Robertson vs. Torx screw drives (2021)
I’m going to get straight to the point and say that it’s time for Robertson screws to be retired and supplanted by Torx. This posting is to explain why and is partly motivated by lots o…
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My Unholy Battle with a Rock64
I’ve got this rock64, which is an aarch64 board comparable to a Raspberry Pi 3 B+ with 4 gigs of ram. For years I’ve wanted to put a distribution on here that doesn’t have a premade image available, mainly because out of all the options on that page I don’t actually like any of them. Well, except NetBSD, but NetBSD…
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Disassembling an Amazon Blink Mini camera
I used Ghidra twice, so that means I'm officially an expert in reverse engineering
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Documenting Sony Memory Stick
Dmitry.GR: The first complete documentation of Sony Memory Stick from HW to DATA