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Devices: Orange Pi Zero, Avalue, RTL-SDR

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Linux
Hardware
  • Orange Pi Zero LTS SBC Launched for $8.49 and Up

    You can now buy Orange Pi Zero LTS Arm Linux SBC for $8.49 and up. The tiny board is ideal for headless applications with WiFI and Ethernet connectivity.

  • Toughened up embedded PC can run 8th or 9th Gen Coffee Lake CPUs

    Avalue’s rugged “EPS-CFS” computer runs Linux or Win 10 on Intel 8th or 9th Gen Coffee Lake CPUs up to an octa-core Core i7-9700TE, and supplies up to 32GB GB DDR4, 2x SATA bays, 2x GbE, 2x HDMI, and 4x USB 3.2 ports.

    Avalue announced an embedded computer with Intel’s 8th Gen Coffee Lake T-series or the new, but similarly 14nm-fabricated, 9th Gen Coffee Lake Refresh TE-series chips. The EPS-CFS computer, which is built around Avalue’s 3.5-inch ECM-CFS SBC, joins other 9th Gen-ready products including Kontron’s COMe-cWL6 (E2S) and Congatec’s Conga-TS370 COM Express modules.

  • RTL-SDR: Seven Years Later

    When I wrote that article in 2012, the RTL-SDR project and its community were still in their infancy. It took some real digging to find out which TV tuners based on the Realtek RTL2832U were supported, what adapters you needed to connect more capable antennas, and how to compile all the software necessary to get them listening outside of their advertised frequency range. It wasn’t exactly the most user-friendly experience, and when it was all said and done, you were left largely to your own devices. If you didn’t know how to create your own receivers in GNU Radio, there wasn’t a whole lot you could do other than eavesdrop on hams or tune into local FM broadcasts.

    Nearly a decade later, things have changed dramatically. The RTL-SDR hardware and software has itself improved enormously, but perhaps more importantly, the success of the project has kicked off something of a revolution in the software defined radio (SDR) world. Prior to 2012, SDRs were certainly not unobtainable, but they were considerably more expensive. Back then, the most comparable device on the market would have been the FUNcube dongle, a nearly $200 USD receiver that was actually designed for receiving data from CubeSats. Anything cheaper than that was likely to be a kit, and often operated within a narrower range of frequencies.

Orange Pi Zero2

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today's leftovers

  • Newest Linux Optimizations Can Achieve 10M IOPS Per-Core With IO_uring - Phoronix

    Just one week ago Linux block subsystem maintainer Jens Axboe was optimizing the kernel to get 8 million IOPS on a single CPU core. He progressed the week hitting around ~8.9M IOPS per-core and began to think he was hitting the hardware limits and running out of possible optimizations. However, this week he is kicking things off by managing to hit 10 million IOPS!

  • Ubuntu Kylin 21.10 Quick overview #Shorts - Invidious

    A Quick overview of Ubuntu Kylin 21.10.

  • Reset Password On Any Linux Distro (No Root Needed) - Invidious

    Losing your access to your user account on Linux can be really frustrating but luckily resetting that lost password is actually incredibly easy but the process slightly changes depending on the bootloader you're using at least for the easy approach

  • Ubuntu Weekly Newsletter Issue 706

    Welcome to the Ubuntu Weekly Newsletter, Issue 706 for the week of October 17 – 23, 2021.

  • Rakudo Weekly News: 2021.43 Thank You

    Oleksandr Kyriukhin has released the 2021.10 version of the Rakudo Compiler, which includes all of the work of the new MoarVM dispatch mechanism. This is the culmination of more than 1.5 year work by many people, but mostly by Jonathan Worthington. A historic step forward that lays the groundwork on more efficient executing of Raku programs, and actually delivers on a number of improvements.

  • Team Profile by KDE's Cornelius Schumacher

    What makes a great team? One important factor is that you have a balanced set of skills and personalities in the team. A team which only consists of leaders won't get much work done. A team which only consists of workers will not work into the right direction. So how can you identify the right balance and combination of people? One answer is the Team Member Profile Test. It's a set of questions which team members answer. They are evaluated to give a result indicating which type of team member the person is and where it lies in the spectrum of possible types.

  • Some users on Reddit report that Windows 11 loses Internet connectivity when trying to connect to NordVPN.
  • Pat Gelsinger's Open-Source Bias, Intel's Pledge To Openness [Ed: Intel is openwashing again, but leaks from Intel show that Intel is a foe, not a a friend. It's also rather ironic that Intel puts an "open" letter in a proprietary site of Microsoft, which is viciously attacking Free software. Intel is a Microsoft booster.]

    Ahead of Intel's inaugural Intel Innovation event taking place virtually later this week, Intel CEO Pat Gelsinger published an open letter to an open ecosystem. In this open ecosystem letter, Gelsinger talks up opennness and choice, adding, "This is why I fundamentally believe in an open source bias, which powers the software-defined infrastructure that transformed the modern data center and ushered in the data-centric era."

Raspberry Pi and Arduino Leftovers

  • Fast Indoor Robot Watches Ceiling Lights, Instead of the Road

    To pull this off, [Andy] uses a camera with a fisheye lens aimed up towards the ceiling, and the video is processed on a Raspberry Pi 3.

  • Tackle The Monkey: Raspberry Pi Gets Round Screen | Hackaday

    You could argue that the project to add a round screen to a Raspberry Pi from [YamS1] isn’t strictly necessary. After all, you could use a square display with a mask around it, giving up some screen real estate for aesthetics. However, you’d still have a square shape around the screen and there’s something eye-catching about a small round screen for a watch, an indicator, or — as in this project — a talking head. The inspiration for the project was a quote from a Google quote about teaching a monkey to recite Shakespeare. A 3D printed monkey with a video head would be hard to do well with a rectangular screen, you have to admit. Possible with a little artistry, we are sure, but the round head effect is hard to beat. Honestly, it looks more like an ape to us, but we aren’t primate experts and we think most people would get the idea.

  • Move! makes burning calories a bit more fun | Arduino Blog

    Gamifying exercise allows people to become more motivated and participate more often in physical activities while also being distracted by doing something fun at the same time. This inspired a team of students from the Handong Global University in Pohang, South Korea to come up with a system, dubbed “Move!,” that uses a microcontroller to detect various gestures and perform certain actions in mobile games accordingly. They started by collecting many different gesture samples from a Nano 33 BLE Sense, which is worn by a person on their wrist. This data was then used to train a TensorFlow Lite model that classifies the gesture and sends it via Bluetooth to the host phone running the app. Currently, the team’s mobile app contains three games that a player can choose from.

Security Leftovers