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How to Improve Bluetooth Audio Quality on Linux
Bluetooth Audio on Linux is a bit of a mess. There's a fair bit you can do to significantly improve the quality though.
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The latest blog posts to take off on Hacker News. 4,807 posts.
Hardware & Electronics
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Updated BBC micro:bit
As we announce the latest micro:bit we invite you to learn about the device and join us to make incredible things with it.
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Hacking together a USB-C charger for a cheap Chromebook
The era of USB-C has come. The other day I threw all other cables into a box, and bought a set of USB-C to USB-C, Lightning, and microUSB cables. USB-C chargers around the house, USB-C PD power bank, even a nice small USB-C dock that works with the Nintendo Switch if the charger can do the right voltage. It's glorious.
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Raspberry Pi 4: Hardware accelerated video decoding (GPU) in Chromium
Following these steps, you will add hardware acceleration decoding capabilities to the Chromium web browser. This is an extension to the tutorial about DRM for Chromium on the Raspberry Pi. Videos from Amazon Prime, Netflix, Disney+, Youtube, etc. can be decoded using the Raspberry Pi GPU.
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Down the ergonomic keyboard rabbit hole
Over the past few months I've had an ergonomic keyboard obsession. It started out simple, just wanting to improve my typing experience. It ended with me writing a driver. This is my story - now available as an audiobook!
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Show HN: I reverse engineered my cable modem and turned it into an SDR
A few weeks ago I got curious about an old cable modem sitting in my closet, a Motorola MB7220. Initially I was interested in what kind of hardware it had and if it was running Linux. Some quick searching brought me to a thread on a web forum where people were discussing the built in spectrum analyzer feature used for…
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Nvidia announces Jetson Nano 2GB, a single board computer
Using Python 3.6, OpenCV, Dlib and the face_recognition module
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The Whitworth Three Plates Method (2017)
A visual step-by-step guide to Joseph Whitworth’s three-plate method for creating very flat reference surfaces.
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Xen on Raspberry Pi 4
The Xen Project is excited to share that the Xen Hypervisor now runs on Raspberry Pi. This is an exciting step for both hobbyists and industries. Read more to learn about how Xen now runs on RPi and how to get started. Written by Stefano Stabellini and Roman Shaposhnik, originally
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Physicists Build Circuit That Generates Clean, Limitless Power from Graphene
Researchers harnessed the atomic motion of graphene to generate an electrical current that could lead to a chip to replace batteries.
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Pressing YubiKeys
If you work in tech, you probably have a YubiKey. I have this one, the YubiKey 5C Nano:
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Baremetal programming on the tinyAVR 0 micro-controllers
All you need is a text editor, a makefile and a USB-serial cable.
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From zero to main(): How to write a bootloader from scratch
A community and blog for embedded software makers
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Benchmarking TensorFlow on Nvidia GeForce RTX 3090
We benchmarked the deep learning performance of the latest NVIDIA RTX 3090 GPU.
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Amazon One – Palm recognition for Amazon Go
We’re always looking for ways to make our customers’ lives better, and one area where we’ve spent time innovating is the customer shopping experience in stores. Today, our physical retail team is excited to introduce a new innovation called Amazon One.
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Durability: NVMe Disks
Durability is the guarantee that data can be accessed after a failure. It seems like this should be very simple: either your system provides durable data storage, or it does not. However, durability is not a binary yes/no property, and instead should be defined as the kinds of failures you want your data to survive…
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Reverse engineering a Hit Clip (2013)
It’s hard to see a child outside today without some kind of iDevice pumping high fidelity 192kbps stereo lossless audio into their shiny white headphones, but BACK IN MY DAY, the iPod hadn’t been invented yet. Pickings were slim. Walkmen were outdated, CD players were pricey and would skip if bumped around despite…
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We need physical audio kill switches
PARDON!?
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Raspberry Pi – UASP, Trim, and Boot Performance via USB
In the past few weeks, I reviewed USB drive performance on the Raspberry Pi 4, and the importance of UASP support for USB drive performance. Both posts generated great discussion, and there were three things I wanted to cover in this follow-up, namely: Which drives support UASP Real-world performance benchmarks TRIM…
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Precursor – A mobile, open source electronics platform
Precursor (pre·cur·sor | \ pri-ˈkər-sər): 1. one that precedes or gives rise to; a predecessor; harbinger 2. a pocketable open development board
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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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Engineers produce a fisheye lens that’s completely flat
Engineers at MIT and UMass Lowell have designed a wide-angle lens that is completely flat. It is the first flat fisheye lens to produce crisp, 180-degree panoramic images.
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I overslept because iOS 14 disabled my alarm
I’m using the iOS Bedtime feature for years now. With yesterday’s iOS 14 update the feature got moved from the Clock app to the Health app. Unfortunately the migration is done by disabling your existing alarm and showing a button to open the Health app to set it up again. I woke up late and well rested today.
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Pine64 September update
We have been fortunate to welcome many new members into our ranks over the past 30 days. This is in large part due to the continued interest in the Pinebook Pro and PineTab, which have just shipped, as well as the ongoing massive demand for the PinePhone. By my estimate, come December we will have shipped more…