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My toddler still loves planes, so I upgraded her radar
An adorable set of release notes
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Reverse Engineering iOS 18 Inactivity Reboot
Wireless and firmware hacking, PhD life, Technology
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Considerations for a long-running Raspberry Pi
Keeping a Raspberry Pi online and working with zero intervention for weeks, months, or years is somewhat of an art form. Several classes of things can go wrong, and you need to consider how your Pi will recover from each of them.
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Fixing an Elgato HD60 S HDMI capture device with the help of Ghidra
This post has a little bit of everything. Hardware diagnostics, some suspiciously similar datasheets from two separate Taiwan chip manufacturers, and firmware reverse engineering. Read on if that sounds like fun!
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Conformant OpenGL 4.6 on the M1
For years, the M1 has only supported OpenGL 4.1. That changes today – with our release of full OpenGL® 4.6 and OpenGL® ES 3.2! Install Fedora for the latest M1/M2-series drivers.
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Andy Warhol's lost Amiga art found
August 6 is Andy Warhol's birthday, so let's look back at his pioneering digital art
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The Pentium as a Navajo Weaving
Hurrying through the National Gallery of Art five minutes before closing, I passed a Navajo weaving with a complex abstract pattern. Suddenl...
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Traveling with Apple Vision Pro
The Vision Pro has quickly become an essential item that I take onto every flight. It’s a fantastic device to travel with—Be it by train or by plane, it offers an unparalleled opportunity to …
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Halo 2 in HD: Pushing the Original Xbox to the Limit
Everything I went through to add support for HD resolutions to Halo 2 on the Original Xbox. From patching the game's rendering engine and memory allocator, to hot patching the Xbox OS, to overclocking the GPU and running performance benchmarks. This post covers how I pushed the game and console to t
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The Raspberry Pi 5 Is No Match for a Tini-Mini-Micro PC
I've always been fond of the idea of the Raspberry Pi. An energy efficient, small, cheap but capable computer. An ideal home server. Until the Pi 4, the Pi was not that capable, and only with the relatively recent Pi 5 (fall 2023) do I feel the Pi is OK performance wise, although still hampered by SD card performance…
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How to build a 50k ton forging press
In the late 1940s and early 1950s, a revolution took place in American military aircraft design.
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Testing the F-35C Tailhook
Welcome to the blog. As a way to kick things off, here’s a single-page version of my thread on the F-35C tailhook.
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Making USB devices – end to end guide to your first gadget
Introduction to implementing USB devices. Minimal overview of hardware and software with an example with STM32 microcontroller. Also contains an index to very detailed guides for more information.
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Homemade 6 GHz pulse compression radar
Designing a modern pulse compression radar that uses digital signal processing.
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Reverse engineering a car key fob signal
I’ve had the curiosity to explore radio communication protocols for a few years now, ever since I’ve started fiddling around with an RTL-SDR dongle. I always had the goal of figuring out how data is transmitted in remote controls (car key fobs particularly), trying replay attacks, and other possible attack vectors.
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Carpentopod: A Walking Table Project
Back in 2008, I wrote some software for fun to generate various optimized walking mechanisms. And when I also picked up some electronics and wood working skills in more recent years, I was able to turn one of these mechanisms into an actual wireless walking wooden coffee table: the Carpentopod. This post briefly…
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I made a new backplane for my consumer NAS
codedbearder's blog
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Tracker Beeper (2022)
A week ago, I finally got round to implementing an idea I’d been toying with for years: what if your computer made a little bit of noise every time it sent data to Google? From studying logs, I’d long known just how many sites send all your visits and clicks to (at least) Google, but a log that you have to manually…
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The magic of DC-DC voltage conversion (2023)
Resistor-based dividers, linear regulators, buck converters, and other ways to adjust voltages.
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The motor turns too much
This instalment is about the "Bench Kona" I've built in the shed. Behold its questionable integrity:
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What happens when you touch a pickle to an AM radio tower
A few months ago, our AM radio hot dog experiment went mildly viral. That was a result of me asking my Dad 'what would happen if you ground a hot dog to one of your AM radio towers?' He didn't know, so one night on the way to my son's volleyball practice, we tested it. And it was awesome. There's a video and some…
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1/25-scale Cray C90 wristwatch
Welcome to the latest edition of my on-going series in Cray-related computational necromancy. This was another just-for-fun project. Over the many years Andras and I have been working on our Cray revival efforts, there has always been a big lag between our available software (and Andras’ amazing simulator ) and my…
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High-speed 10Gbps full-mesh network based on USB4 for just $47.98
Fang-Pen Lin's blog about programming
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Intel's $475M error: the silicon behind the Pentium division bug
In 1993, Intel released the high-performance Pentium processor, the start of the long-running Pentium line. The Pentium had many improvement...
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Intel Honesty
The best way to both save Intel and have leading edge manufacturing in the U.S. is to split the company, and for the U.S. government to pick up the bill via purchase guarantees.
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I turned my ThinkPad into a programmable USB device
Enabling and using xDCI controller on ThinkPad X1 Carbon 6th Gen
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TinyML: Ultra-low power machine learning
Explanation of TinyML, what it is used for and the main techniques it uses
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Breaking Free from DRM: Hacking My Air Purifier
I searched the web for a deal on a decent air purifier and the Xiaomi 4 Pro seemed to meet all my requirements. The filter size, scheduler and air volume ticked all the boxes. I set it up and thought nothing of it until last week my room was lit with the ‘ 0% remaining ’ replace filter warning. I had set my unit up to…
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