The latest blog posts to take off on Hacker News. 3,046 posts.
Exploring a simple machine I took apart a simple spray bottle to see how it kept fluid flowing only in one direction from the reservoir to the nozzle. It does so with simple check valves made of two pieces of plastic, a spring, and a small sphere. It’s a simple way to solve a tricky problem. A simple spray bottle One…
I’ve been using Macs for almost nine years. I got a 15” MacBook Pro the summer before my freshman year of college through my school’s computer store. I used it for six years before getting a 13” model in 2015. I’m considering getting a new one in the next year or two, but the latest MacBook Pros have become worse in…
Homepage of Jochen Hoenicke
Is such a thing possible? Turns out it is, and it’s called a Monoscope. I recently got a Raytheon CK1414 Monoscope with a good getter and a working filament–naturally, I decided to fire…
A blog post on reverse engineering and customizing the firmware of a cheap fitness tracker bracelet.
Thanks for the featured writeup Hackaday! Make sure to check out the comments over there as well. Looks like Hackernoon picked it up as well, make sure to check in with the comments there too. It would be great if you could also head over to Hacker News, give an upvote, and join in the comments there. Let's get this…
When you read up on the DisplayPort connector in the VESA specification, it will show that both the source and the sink are supposed to provide power at 3.3V+-10% and 500mA on the DP_PWR pin, pin 20, of the connector.
There have been many announcements about what would be the next generation Intel Xeon platform with integrated FPGA, also on this blog. Now Intel has finally announced that they are shipping their …
The sharpness of a photographic imaging system or of a component of the system (lens, film, image sensor, scanner, enlarging lens, etc.) is characterized by a parameter called Modulation Transfer Function (MTF) , also known as spatial frequency response. We present a unique visual explanation of MTF and how it relates…
The 76477 Complex Sound Generation chip (1978) provided sound effects for Space Invaders 1 and many other video games . It was also a pop...
the first thing i thought when we setup our bee hive was "i wonder how you could count the number of bees coming and going?"
I’ve been trying to make my computers quieter for nearly three decades. Custom liquid cooling loops, magnetically-stabilised fluid-dynamic bearings, acoustic dampeners, silicone shock absorb…
Disclaimer: this, by no means, is not a definitive description of the whole embedded-specific development. This is just a small good practice about interaction with hardware.
Ault and Wiborg’s art nouveau poster ads.
A 360 leds clock on the wall
It has become clear that storing secrets in computers is hard. The best demo to the world that storing secrets on “online” computers is hard and sometimes devastating, is the large amounts of cryptocurrency theft due to critical keys being in memory of systems directly or indirectly connected to the internet.
I am very excited to announce details of the first homemade integrated circuit and share the journey that this project has taken me on over the past year. I hope that my success will inspire others and help start a revolution in home chip fabrication. When I set out on this project I had no idea of what I had gotten…
Less is exponentially more – Rob Pike Smart phones are useful, but they are also incredibly addictive, and that addiction is at the epicenter of Silicon Valley’s effort to grab an ever-increasing percentage of our minds. If a substance or behavior controls us, it becomes our master, and that just won’t do. For the…
Yesterday, during OsmoDevCon 2018, Steve Markgraf released osmo-fl2k, a new Osmocom member project which enables the use of FL2000 USB-VGA adapters as ultra-low-cost SDR transmitters. How does it wor
Last year Purism contacted me after they read on the Pepper&Carrot blog that my laptop has been stolen in the burglary of my house. At that time, they proposed me to contribute to my Pepper&Carrot project by sending me a shiny new Librem13 laptop. So, since October 2017 I have this laptop with me and because I saw a…
Darwin: a genomics co-processor provides up to 15,000x acceleration on long read assembly Turakhia et al., ASPLOS’18 With the slow demise of Moore’s law, hardware accelerators are needed to m…
I've had a long history playing around with Raspberry Pis and other Single Board Computers (SBCs); from building a cluster of Raspberry Pis to run Drupal, to building a distributed home temperature monitoring system with Raspberry Pis, I've spent a good deal of time testing the limits of an SBC, and also finding ways…
Introduction In my last post, I discussed the process of building my Magic Leap One (ML1) view simulator model (hereafter referred to as “model”), and now I would like to show you what the view of …
Back in 2015, I wrote a popular post comparing the performance of a number of microSD cards when used with the Raspberry Pi. In the intervening three years, the marketplace hasn't changed a ton, but there have been two new revisions to the Raspberry Pi (the model 3 B and just-released model 3 B+). In that article, I…
How low we can Go and still do something useful? I recently bought this ridiculously cheap board: I bought it for three reasons. First, I have never dealt (as a programmer) with STM32F0 series. Second, the STM32F10x series is getting old. MCUs belonging to the STM32F0 family are just as cheap if not cheaper and has…
As seen on Hackaday! There’s always some electronics topic that I end up focusing all my efforts on (at least for a certain time), and that topic is now eMMC NAND Flash memory. Overview eMMC …
Move over, Sennheiser. Make yourself scarce, Bose. Here comes the ultimate Hi-Fi solution for your living room: The Commodore 64! I s it sa...
Have you ever wondered how your computer knows all the characteristics of your monitor— the supported resolutions, the model, and even the...
