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DDR Type 2 Short-wave spy transmitter
East-German spy radio set Type 2, used during the Cold War by agents working for East-Germany (DDR).
New
The latest blog posts to take off on Hacker News. 4,807 posts.
Hardware & Electronics
Any year
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Why I'm usually unnerved when modern SSDs die on us
You're probably reading this page because you've attempted to access some part of my blog (Wandering Thoughts) or CSpace , the wiki thing it's part of. Unfortunately you're using a browser version that my anti-crawler precautions consider suspicious, most often because it's too old (most often this applies to versions…
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Do I really need to get out the soldering-iron again?
So I had this idea that it would be nice to listen to music when I get home from work everyday, so I put all my ripped music onto my phone, and I bought some good quality over-ear headphones.
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Teensy 3.1 bare metal: Writing a USB driver (2014)
Electronics, Embedded Systems, and Software are my breakfast, lunch, and dinner.
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Designing and building an FPGA sprite-based graphics accelerator (2014)
A very warm welcome to my most ambitious project to date. In this project I’m going to attempt to design and build a sprite-based graphics accelerator that will function as a co-processor to an MCU. Using cheap off-the-shelf components I’m hoping to achieve a level of gaming performance that compares well to popular…
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LibrePCB: First stable release published
The stable release 0.1.0 is out! Since the release candidate 0.1.0 RC2 three weeks ago, no critical bugs were reported, so we decided to finally publish the stable release 0.1.0. The changelog compared to 0.1.0 RC2 is very short: Changelog Library Editor: Fix saving of library URL Fix saving of component property…
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EC2 Instances Powered by Arm-Based AWS Graviton Processors
Earlier this year I told you about the AWS Nitro System and promised you that it would allow us to “deliver new instance types more quickly than ever in the months to come.” Since I made that promise we have launched memory-intensive R5 and R5d instances, high frequency z1d instances, burstable T3 instances, high…
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Basic GPU design concepts
we have explored some of the basic architecture concepts in Graphics Processing Unit (GPU) such as graphics pipeline, vector processing, primitive processing, rasterization, fragment processing, pixel operations, graphics architecture and shader programming model There are five basic graphics entity
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Lisp Machine Inc. K-machine (2001)
Lisp Machine Inc. K-machine architecture
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Every 7.8μs your computer’s memory has a hiccup
I was particularly interested in one of the consequences of how dynamic RAM works. You see, each bit of data is stored by the charge (or lack of it) on a tiny capacitor within the RAM chip. But these capacitors gradually lose their charge over time.
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Secure Boot in the Era of the T2
Explore the Duo Blog for expert tips, security insights, and resources to stay updated on the latest in security and access management trends.
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Fast line-following robots
Since February 2016, I have been participating in DIYRobocars meetups here in the SF Bay Area, wherein a bunch of amateur roboticists compete in autonomous time trials with RC cars. I had been doing very well in the competition with essentially just a glorified line-following robot, but have lately upgraded to a full…
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Chinese Tokamak reaches over 100M degrees
Experimental Advanced Superconducting Tokamak (EAST), nicknamed Chinese artificial sun, has achieved over 100 million degrees electron temperature in the core plasma in its 2018 four-month-long experiment campaign.
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Bill Godbout, a legend in the S-100 community, died in the Camp wildfire
Bill Godbout, a legend in the S-100 community for his 1970s-1980s work at Godbout Electronics and CompuPro, perished November 8 due to the Camp wildfire in Concow, California. He was 79.
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How Multi-Beam Flash Lidar Works
An inside look at how Ouster's multi-beam flash lidar architecture works, and why silicon-based design is transforming the lidar industry.
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Memory-Level Parallelism: Intel Skylake versus Apple A12/A12X
Modern processors execute instructions in parallel in many different ways: multi-core parallelism is just one of them. In particular, processor cores can have several outstanding memory access requests "in flight". This is often described as "memory-level parallelism". You can measure the level of memory-level…
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Librem5 Hardware Update
Purism makes premium phones, laptops, mini PCs and servers running free software on PureOS. Purism products respect people's privacy and freedom while protecting their security.
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Making floating point math highly efficient for AI hardware
In recent years, compute-intensive artificial intelligence tasks have prompted creation of a wide variety of custom hardware to run these powerful new systems efficiently. Deep learning models, suc…
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How Many Computers Are in Your Computer?
A catalogue of software constructs, languages, or APIs which are unexpectedly Turing-complete; implications for security and reliability.
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96-core ARM supercomputer using the NanoPi-Fire3
Building a high performance supercomputer for under £100 (£550 including twelve Fire3s). Parts list, benchmarks and downloadable plans for laser-cutting the acrylic case.
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We're in a Golden Age for Amateur Radio
When I started my ham life as KK6VSI in August of 2015, I wish I could have had the information I'm about to lay out here. Of course, most of the equipment didn't yet exist. So another way of looking at it is that my entry into amateur radio was perfectly timed for my generation's Golden Age of Ham Radio.
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New Lower-Cost, AMD-Powered M5a and R5a EC2 Instances
From the start, AWS has focused on choice and economy. Driven by a never-ending torrent of customer requests that power our well-known Virtuous Cycle, I think we have delivered on both over the years: Choice – AWS gives you choices in a wide range of dimensions including locations (18 operational geographic regions, 4…
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2018 Mac Mini Review
I hardly ever think about my Mac Mini, but it serves a vital role for my family as our home-theater mixer , Plex server, ScanSnap server, Apple Photos backup, and Backblaze host for our NAS . 1 Almost every port on the back is in use, and it runs 24/7, reliably, in total silence.
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Jeri Ellsworth and the Robot Uprising of 2038
In a stuffed apartment filled with hydrofluoric acid, oscilloscopes and a transistor curve tracer, Jeri Ellsworth carefully places a hand-cut silicon wafer into a 1000 degree furnace. The ambient noise of police sirens can be heard in the background: "Ugh, the police are coming... So the instructions for the…
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Available on Google Cloud: Intel Optane DC Persistent Memory
In-memory workloads continue to be the backbone of innovative data management use cases, but as demand increases, so does the need for even larger memory capacity. In July, we announced a partnership with Intel and SAP to offer GCP virtual machines supporting Intel® Optane DC™ persistent memory for SAP workloads. This…