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Hardware With Arduino and GNU/Linux

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GNU
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Hardware
  • Convert an old cassette player into a synthesizer

    Cassettes (if you remember those) are normally used to play back music and other audio, but what about using an old Walkman-style tape player as the instrument itself? That’s exactly what this project by Zack Scholl allows you to do, varying the playback speed to modify pitch output.

    It’s a very simple setup, requiring one to hook up wires that enable an Arduino Uno and MCP4725 DAC to adjust the speed using a voltage input. A drone sound is recorded on the tape, which may also involve some hacking depending on your equipment.

  • GigaDevice GD32E5 Cortex-M33 microcontrollers target motor and industrial control
  • Making a 3D graphics video for the Librem 5

    At Purism, we do all our videos and other promotional material internally, with Librem hardware and free software only. This is part of our policy and I think it’s important, when I believe in something, to act in accordance with it.

    A few days after releasing the video of the Librem 5 hardware design, I was asked by a few people to publish an article describing the process of making this video.

    In early 2019, we shot a funny commercial for Librem One and I made a blog post, along with a video, to explain the process of making this kind of commercial with Librem hardware and free software. I was not going to do a “behind the scenes” blog post again but the Librem 5 video is entirely made with 3D graphics and the workflow is quite different so I think that it is interesting to describe that process in a new post.

  • AMD Enables Ryzen in Chromebooks, Improving Performance

    A modern enthusiast will scoff at the concept of a Chromebook – limited performance, capabilities, and a simplistic OS for doing some serious work? The fact is that the Chromebook, and Chrome OS, have been gazumping good portions of the notebook market share in recent years, mostly down to its stripped down nature but also the low pricing. In 2019 AMD relaunched its older A-series APUs for Chromebooks, meeting that market need. However, at CES this year we saw the first indication of premium $700+ Chromebooks from Intel. Now AMD is moving into a higher performance space with its Chromebook offerings with new optimized Ryzen hardware and Vega graphics.

    [...]

    AMD claims to have a 21% market share in the Chromebook space, using IDC data, and Chromebooks currently account for 18% of all notebook sales. The market is largely split into three categories: education, enterprise, and consumer, with education seeing a big uplift in recent months due to the pandemic. Also because of the pandemic, as well as the growth of Chromebooks as a viable tool for these markets, use-cases are expanding with new productivity applications becoming available as well as the need to drive multiple high resolution displays.

  • AMD Announces Ryzen/Athlon 3000 C-Series For Chromebooks

    AMD today announced the Ryzen 3000 and Athlon 3000 C-Series processors for use in Google Chromebooks from multiple vendors.

    AMD announced these 3000 C-Series mobile processors as the first Zen optimized Chromebook processors with Acer, ASUS, HP, and Lenovo all committing to releasing AMD Chromebooks in Q4'2020.

    Compared to the previous-generation AMD A-Series "Excavator" APUs in Chromebooks, AMD is promoting up to 251% better graphics performance, up to 104% faster productivity, and up to 152% better photo editing with these new Zen C-Series processors.

  • OnLogic’s Ubuntu-ready AMD servers include compact industrial edge model

    OnLogic has launched a line of AMD servers, including two with 2nd Gen Epyc and three with Ryzen 3000, including a $1,547 and up Compact Industrial AMD Ryzen Edge Server. Meanwhile, AMD launched some 15W mobile Ryzen C-series chips.

    OnLogic and AMD, which last year teamed up on promoting OnLogic mini-PCs based on AMD’s Ryzen Embedded V1000 and R1000 SoCs, are now collaborating on OnLogic’s new lineup of servers based on 2nd Gen Epyc and AMD Ryzen 3000 processors. Most of these are rackmount servers that are beyond our typical product coverage, but we are intrigued by the desktop form-factor Compact Industrial AMD Ryzen Edge Server (MC850-40), which blurs the line with the high-end embedded edge servers.

    [...]

    AMD’s Eypc Embedded SoCs are scaled down versions of the 2nd Gen Epyc SoCs used by OnLogic’s new rackmount systems: the 2U, $2,887 and up MK200-60 and 4U, $5,051 and up MK400-60. These “Eypc Edge Servers” tap the Epyc Rome 7002 in up to 32- and 64-core configurations, respectively, with up to 256GB RAM.

More in Tux Machines

Games: Monster Prom, Möbius Front '83 and League Of Legends

  • The absurd multiplayer dating sim Monster Prom 2: Monster Camp is out now | GamingOnLinux

    I will admit that the original Monster Prom is something special as it remains as the only dating sim type of game I've enjoyed, and now there's a brand new helping of it out with Monster Prom 2: Monster Camp. The original was an unexpected pleasure for me, as a genre I've rarely been able to enjoy. Let's face it, "In Monster Prom I was rejected even after letting a princess ride me", is not a typical GamingOnLinux headline. Monster Prom 2: Monster Camp was funded thanks to a Kickstarter campaign back in 2019, and it has released as of October 23 along with full Linux support as expected. Developer Beautiful Glitch mentioned how they've pretty much taken all that was tasty from the original, and threw in some spices to make Monster Prom 2: Monster Camp.

  • Möbius Front '83 is a tactical turn-based strategy game from Zachtronics | GamingOnLinux

    Releasing with Linux support on November 5 is Möbius Front '83 latest title from Zachtronics (SpaceChem, Infinifactory, Opus Magnum, Eliza). Unlike most of their previous titles, it's not a puzzle game. They say it's actually a conventional strategy game designed from scratch by the clever minds at Zachtronics, so it will have their own special feel to it. "The year is 1983 and the United States of America must defend itself from an enemy it could have never imagined— an America from an alternate universe that will stop at nothing to seize control of the country’s heartland!"

  • How to play League of Legends on Linux | FOSS Linux

    League Of Legends is a game made into a snap, meaning that the software package can be installed and executed across different Linux distributions. Being among the largest footprints of any game in streaming media communities on platforms like Twitch and YouTube, installing it in your Linux system will be great. For our case, we will install it in Ubuntu distro.

IBM/Red Hat: rpminspect 1.2 and systemd 247-RC1

  • David Cantrell: rpminspect-1.2 released

    rpminspect 1.2 is now available. In addition to four new inspections, a lot of improvements have been made to how the program runs and reports results. [...] A number of improvements are present in this release. The big one is the detection of rebased builds and the reading of the rebaseable list from the rpminspect-data package. A rebase is found when the before and after builds have matching package names but different version and release numbers. If the package name and version are the same but the release number is different, this is considered a maintenance update. This check determines reporting thresholds. For instance, changes in config files may report as VERIFY for a maintenance update but they report as INFO for a rebase. The assumption here is that rebased packages will bring a lot of changes and while rpminspect will find those, we do not want it to alarm as strictly as it would for a maintenance update. When using the -d option to get debugging output, you no longer see the config file settings dumped at the beginning of the output. That output has been moved to the -D/--dump-config option. You may not always want to see that so you now need to specify -D to also get the config file output. Support for SHA-224, SHA-384, and SHA-512 message digests is now present in librpminspect. There is a DEFAULT_MESSAGE_DIGEST macro in constants.h that sets the default the program will use. This is intended to help prepare for changes down the road where the message digest used for various tasks in packaging will change.

  • Systemd 247-RC1 Released With Systemd-OOMD, Systemd-Homed Now Defaults To Btrfs

    The first release candidate of systemd 247 is now available for testing and it's a huge feature release.  This big systemd 247 release is introducing systemd-oomd for out-of-memory daemon handling, systemd-homed now defaults to using Btrfs, there is a new capability with systemd of secure credentials handling, and much more. Below is a look at the highlights for systemd 247:  - The new systemd-oomd service has been added for monitoring resource contention and can kill processes when memory/swap pressure is above the defined limits. For now this is experimental and just enabled in the developer mode.  - Systemd-homed defaults to using the Btrfs file-system when available for creating home directories in LUKS volumes. The DefaultFileSystemType= option for homed.conf remains available for changing off the default/ Btrfs was chosen since it can grow and shrink the file-system online. 

Module and dev kit run Linux on QCS610 camera SoC

Lantronix has launched an “Open-Q 610 μSOM” module and $995 dev kit that run Linux on Qualcomm’s camera-focused, AI-enabled octa-core QCS610 SoC with triple 4-lane MIPI-CSI interfaces. The Intrinsyc division of Lantronix has announced a tiny Open-Q 610 μSOM compute module and Open-Q 610 μSOM Development Kit that run Yocto Linux on a new Qualcomm QCS610 SoC aimed at smart camera applications. Camera features include staggered HDR, lens de-warp, dual camera stitching, image de-fog, and 360-degree panoramic views. The kit is available starting at $995, with shipments due in November. Read more Also: Coffee Lake 3.5-inch SBC has up to three GbE ports

today's howtos

  • How to improve your bash/sh shell script with ShellCheck lint script analysis tool
  • How to install Minecraft on Deepin 20 - YouTube
  • openssl Generate Self Signed SSL Certifcate

    openssl req -newkey rsa:2048 -nodes -keyout /etc/ssl/private/myblog.key -x509 -days 365 -out /etc/ssl/private/myblog.pem - (openssl Generate Self Signed SSL Certifcate generating self signed ssl certificate to use in dovecot postfix nginx Self signed certificates can be used for private encryptions between server and client and must be manually accepted on browser/ client). The best command line collection on the internet, submit yours and save your favorites.

  • How to Add a Simple Progress Bar in Shell Script | Linux Journal

    At times, we need to write shell scripts that are interactive and user executing them need to monitor the progress. For such requirements, we can implement a simple progress bar that gives an idea about how much task has been completed by the script or how much the script has executed. To implement it, we only need to use the “echo” command with the following options and a backslash-escaped character.

  • How to install Steam on Deepin 20

    Firstly, we will enable 32-bit architecture on our device. Then we will update the system repositories. After that, we will install required 32bit packages. Lastly, with the last three commands, we will download and install Steam. Enjoy!

  • FISH | Friendly Interactive SHell on openSUSE – CubicleNate's Techpad

    BASH has been good to me and I have enjoyed my time with BASH very much. I have learned so much about the inner workings of Linux through the terminal and BASH has been there my whole experience. “Tab” completion has been a marvelous gift to the terminal user experience. I have never had a complaint about BASH and therefore never looked elsewhere. On the episode of BDL from 17 Oct 2020, I was told to try FISH as it would change my terminal life. I didn’t really believe it but proceeded to install it anyway. I also wasn’t ready to commit to it so I modified a profile in Konsole to use Fish instead of Bash. Typing in one solitary command and I was sold.

  • How to install Sublime Text editor on a Chromebook

    Today we are looking at how to install Sublime Text editor on a Chromebook. Please follow the video/audio guide as a tutorial where we explain the process step by step and use the commands below.