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What made the 1960s CDC6600 supercomputer fast?
Anybody who has ever taken an advanced computer architecture class has heard of the CDC6600, which was the world’s fastest computer from 1964 to 1969. It was the machine that put Seymour Cray…
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Build Your Own FPGA (2012)
The Open 7400 Logic Competition is a crowd-sourced contest with a simple but broad criteria for entry: build something interesting out of discrete logic chips. It's now in its second year, and this time around I was inspired to enter it.
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New Chip Brings Ultra-Low Power Wi-Fi Connectivity to IoT Devices
More portable, fully wireless smart home setups. Lower power wearables. Batteryless smart devices. These could all be made possible thanks to a new ultra-low power WiFi radio developed by UC San Diego engineers. It enables WiFi communication at 5,000 times less power than commercial WiFi radios.
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Let's Build a 28-Core Raspberry Pi Cluster
I built a 28-core gigabit cluster, Kraken, consisting of 7 Raspberry Pi 3 Model Bs.
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Bug drone for UK army that weights 196g, has 40 mins autonomy and 2km range
As you were browsing something about your browser made us think you were a bot. There are a few reasons this might happen:
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Servers for an Accelerated Future
We designed and built Cloudflare’s network to be able to grow capacity quickly and inexpensively; to allow every server, in every city, to run every service; and to allow us to shift customers and traffic across our network efficiently.
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13-Year-Old, Nicholas Sharkey, Creates a RISC-V Core
one of our goals with the workshop is to give students an opportunity to learn logic design earlier in their education--like, say, as a college freshman or sophomore. So just imagine our surprise when Nicholas introduced himself in the chat forum of our workshop.
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PinePhone Misconceptions
I take no pleasure in writing this blog post. In fact, even as I am writing these words I am internally torn on whether this is the right approach to addressing the problem on hand. Whether I’ve chosen the right approach remains to be seen, but regardless, I now feel it’s time to confront misconceptions about the…
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Restoring and MIDI-Fying a Baby Grand Piano
As much as I love digital instruments, synthesizers and other electronic gear I also really love the look and feel of instruments made from wood, brass, steel and felt. There is objectively no difference between the best digitally sampled pianos but for some reason it doesn’t quite feel as much alive as an actual…
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Data Runner Watch Prototype – Modded Casio F91W
Today I want to show you a watch modification that I've been working on. I'm calling it the Data Runner, and it's another F91W mod, this time going the extra mile to make something functional and nice looking.
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Running a full desktop environment on a Kindle (2019)
Ethical Hacking and Cybersecurity Blog
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I Bought Apple Silicon
This article has been published 6 years ago . If you're into internet archeology, read it — but at your own risk. Honza doesn't have to necessarily agree with the content by now.
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Inside the digital clock from a Soyuz spacecraft
We recently obtained a clock that flew on a Soyuz space mission. 1 The clock, manufactured in 1984, is much more complex inside than you'd ...
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Exploiting Wi-Fi Stack on Tesla Model S
In the past two years, Keen Security Lab did in-depth research on the security of Tesla Cars and presented our research results on Black Hat 2017 and Black Hat 2018. Our research involves many in-veh
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A floppy-disk Walkman using a Raspberry Pi
I have built the most inconvenient way of playing music! It is lo-fi awfulness and cyberpunk grungy. Thanks! I hate it! Ingredients Raspberry Pi USB floppy drive Audio Cable / Headphones USB Battery WHY?!?! As I discussed yesterday, it's possible to fit half an hour of speech on a single floppy disk. The best band in…
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Pine64 announce the Pinecil, TS100 compatible RISC-V soldering iron
I cannot remember the last time I had this much to report. With so many announcements and highlights, I ran out of time and didn’t cover a handful of topics that happened this month. If I find the time, I’ll make a complimentary post later this month to cover the outstanding topics. Before we get into it, I’d also…
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International Space Station 437.800 MHz cross band FM repeater activated
At 01:02 GMT on September 2 a cross band FM amateur radio repeater with a downlink on 437.800 MHz was activated on the International Space Statio. The Amateur Radio on the International Space Stati…
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Backdoors and other vulnerabilities in HiSilicon based hardware video encoders
Serious vulnerabilities (including a backdoor) in IPTV/H.264/H.265 video encoders based on HiSilicon hi3520d hardware.
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PinePhone: PostmarketOS Community Edition
Aiming for a 10 year life-cycle for smartphones
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The 2020 MacBook Air
Faster, cheaper, and now with a truly great keyboard.
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Pinephone first steps
After anki trashed my history, uploaded the trashed history to the sync server, and then repeatedly re-synced the trashed history every time I tried to restore from backup, I wrote my own spaced repetition app. It reads input from a markdown file, asks questions in the terminal and stores state in a json file. I wrote…
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Arduino Goes Pro at CES 2020
We’re kicking off this year’s CES with some big news. Millions of users and thousands of companies across the world already use Arduino as an innovation
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Building my own HomeKit Thermostat
Built a custom HomeKit enabled thermostat, because I was fed up with the walled gardens of Nest