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NightWare helps disrupt nightmares for those with PTSD
NightWare, a digital therapeutic system that works with Apple Watch and iPhone, is offering relief to veterans experiencing nightmares and PTSD.
New
The latest blog posts to take off on Hacker News. 421 posts.
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Modernizing my 1980s sound system
Where the last two posts were primarily about software ( Navidrome and beets , respectively), this post will be more about hardware (and a bit of software to control it). Hopefully it’ll be useful to others with older sound hardware, especially those who are compelled (as I am) to avoid buying a “connected” device…
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Audio CD ripping – optical drive accuracy listing
Tech-Tutorials, Howtos and buying advice2022208 points161 commentscited by 3Hardware & Electronics details
Audio CD ripping - optical drive accuracy listing
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Galois field instructions on 2021 CPUs
CPUs like to operate on data types such as uint8_t , uint16_t , uint32_t , and uint64_t . These data types can be viewed as integers modulo 2 8 , 2 16 , 2 32 , and 2 64 respectively. Addition and multiplication can be defined on these integers modulo 2 N in a way which is familiar to most people; for example, in…
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Creating a pick and place control board with the RP2040
A look into the hardware design of Starfish
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Pieca: A Raspberry Pi Camera System for Leica M Mount Lenses
Taking pictures and geeking out over cameras was one of my first hobbies starting with an old Olympus point and shoot, I then moved up to a DSLR upgrading as new and exciting technology became acce…
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Testing Microsoft's Windows Dev Kit 2023
Last week Microsoft started selling their $599 Windows Dev Kit 2023, formerly known as 'Project Volterra'. I got my hands on one after a little bit of a shipping delay, and promptly started tearing it down to see what's inside. You can click here to browse the entire Twitter thread where I posted pictures of the box…
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Over 16k people still use a Pebble smartwatch
Time flies when you’re having fun. It’s been a year since our last blog post announcing the launch of the Rebble developer portal and in that time we’ve seen...
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Cree releases LEDs designed for horticulture
💡 Upgrade output and efficiency of two-channel luminaires by 6%💡 System performance up to 3.25 PPF/W💡 Advanced spectrum optimized for horticulture💡 Reduce complicated spectral analysis💡 Standard lead times, samples available now Photophyll™ Select for Horticulture Applications Available on XLamp® XP-G3 and J Series®…
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Cache Associativity
Consider a strided incrementing loop over an array of size $N=2^{21}$ with a fixed step size of 256:
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iPhone 14 Pro camera review: A small step, a huge leap
When the iPhone was first introduced, it packed in quite a few innovations. At a now-legendary keynote, Steve Jobs announced that Apple was launching a widescreen iPod, a phone and an internet communications device. These three devices were not separate new products, he revealed — they were all functions of
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I finally found a use case for my Raspberry Pi Model B+
I take a severely underpowered computer and make it do something useful.
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Classic 50mm “Normal” Lens
So, there you are, the proud parents of a beautiful new baby, and you can hardly contain your excitement as you unwrap that new 35mm camera kit you bought to document your child’s early years. Although you’ve had a point-and-shoot camera for a while, you wanted to step up to a “real” camera for the kind of quality…
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Childhood toys: 40 years on 2-XL works just fine
Sitting and literally gathering dust on a shelf has been my childhood 2-XL toy . A few years ago I turned it on and it seemed to work but th...
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The Talos II, Blackbird POWER9 systems support tagged memory
Nowadays, there is increasing interest in adding tagged memory functionality to CPU architectures. Such architectures associate one or more tag bits with each quantum of a system's memory. There are many motivations for this ability to associate “metadata” with individual memory words, but one of the most clear is the…
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Linux 6.1 on NanoPi R4S – On fixing SD-card support, Heisenbugs and Rabbit Holes
This little ARM64 single-board computer dragged me into the world of device trees, voltage regulators, and one of the worst Heisenbugs I encountered so far.
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I use a Raspberry Pi as my daily computer
For over a year now, I use a Raspberry Pi 4 (with 8GB of RAM) as my daily desktop computer. I browse the internet, read and send e-mails, program software, edit photos, create images, watch Youtube videos and play games on it. Without any significant problems.
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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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RISC-V Celebrates Upstreaming of Android Open Source Project RISC-V Port
RISC-V Community News Success in the mobile and consumer device market depends on a vibrant software ecosystem. Over the past decade the Android Open Source Project (AOSP) has become one...
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Available Today: Windows Dev Kit 2023 a.k.a. Project Volterra
We are excited to announce the launch of Windows Dev Kit 2023, which is built to help developers create Windows apps easily and efficiently for Arm. We u nveiled this device as “Project Volterra” at Build in May 2022. Learn more .
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The mainframe in your pocket running minicomputer software
Running Minicomputer Software
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Review of the Kinesis Advantage360 Professional
The Advantage360 Professional is the successor to the well-known Advantage2. It comes with several new features, such as Adjustable Split, Wireless connection, Tenting, ZMK (highly customizable firmware), and many other minor things. In this blog post, I will explain the significant design changes and my experiences…
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RISC in 2022
You are seeing this because the administrator of this website has set up Anubis to protect the server against the scourge of AI companies aggressively scraping websites . This can and does cause downtime for the websites, which makes their resources inaccessible for everyone.
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Refurb Weekend: PowerBook 1400
The PowerBook 1400 is, and remains, my favourite laptop. It was everything the PowerBook 5300 should have been and more. It was my first l...
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NEC’s Tetris Processor
Tetris is a classic time-waster, both in and outside of the office. What good is any computing device if it can’t play this game? Tokyo System House certainly thought so, and ported it to the NEC mini5 line of CP/M-based word processors. Let’s preserve it for future generations and then see what it’s like!
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New motorcycle lighting design could save lives
Motorcycle drivers are 27 times more likely to die in an accident than those in regular passenger vehicles. Night driving is especially dangerous, accounting for nearly half of all fatal crashes.
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iPad Pro M2
The new iPad Pro features superfast Wi-Fi 6E, ProRes video capture, a next-level Apple Pencil hover experience, and powerful features in iPadOS 16.