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Hardware Leftovers

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Hardware
  • Purism Librem 5 Linux smartphone is getting another (big) price hike - Liliputing

    The Purism Librem 5 is one of only a handful of smartphones designed to run free and open source GNU/Linux distributions like Purism’s custom PureOS software. It’s also one of the most expensive, currently selling for $899.

    But it’s going to get even more expensive soon. In a move foreshadowed earlier this year, Purism recently announced that prices will go up this fall due at least in part to rising supply chain costs due to the global chip shortage. Customers who place an order after November 1, 2021 will have to pay $1199. And in March, 2022 the price will go up to $1299.

  • LOLIN S2 Pico - A compact ESP32-S2 board with an OLED display - CNX Software

    If you’re into small MCU boards with an integrated display, you’re in luck as LOLIN launched the S2 Pico board with ESP32-S2 and an OLED display about at the time same as LILYGO T-Display RP2040 board we covered yesterday.

    Wemos/LOLIN S2 Pico board offers WiFi connectivity, a 128×32 OLED display, USB Type-C port for power and programming, as well as the usual GPIO headers in a compact 50×23 mm form factor.

  • Harp Uses Frikin’ Lasers | Hackaday

    We aren’t sure if you really need lasers to build [HoPE’s] laser harp. It is little more than some photocells and has an Arduino generate tones based on the signals. Still, you need to excite the photocells somehow, and lasers are cheap enough these days.

    Mechanically, the device is a pretty large wooden structure. There are six lasers aligned to six light sensors. Each sensor is read by an analog input pin on an Arduino armed with a music-generation shield. We’ve seen plenty of these in the past, but the simplicity of this one is engaging.

  • Take a Look at This Optical Keyboard

    Making keyboards is easy, right? Just wire up a bunch of switches matrix-style to a microcontroller, slap some QMK and a set of keycaps on there and you’re good to go. Well, yeah, that might work for cushier environments like home offices and Hackaday dungeons, but what if you need to give input under water, in a volatile area, or anywhere else you’d have to forego the clacking for something hermetically sealed? Mechanical switches can only take you so far — at some point, you have to go optical.

  • The Many Ways To Solve Your Enclosure Problems | Hackaday

    Most projects around here involve some sort of electronics, and some sort of box to put them in. The same is true of pretty much all commercially available electronic products as well.

    Despite that, selecting an enclosure is far from a solved problem. For simple electronics it’s entirely possible to spend more time getting the case just right than working on the circuit itself. But most of the time we need to avoid getting bogged down in what exactly will house our hardware.

    The array of options available for your housing is vast, and while many people default to a 3D printer, there are frequently better choices. I’ve been around the block on this issue countless times and wanted to share the options as I see them, and help you decide which is right for you. Let’s talk about enclosures!

More in Tux Machines

Xen 4.16 Released

  • XEN PROJECT SHIPS VERSION 4.16 WITH FOCUS ON IMPROVED PERFORMANCE SECURITY AND HARDWARE SUPPORT - Xen Project

    The Xen Project, an open source hypervisor hosted at the Linux Foundation, announced the release of Xen Project Hypervisor 4.16, which introduces various features allowing for improved performance, security, functionality, and hardware support. The Xen Project community continues to be active and engaged, with a wide range of developers from many companies and organizations contributing to this latest release. Additionally, community-wide initiatives, including Functional Safety and VirtIO for Xen, continue to make valuable progress. “The Xen Project continues to make progress in order to expand its use cases into the embedded world while keeping the mature enterprise support. This release has seen the broadening of hardware support for both Arm and x86, together with an increase of the automated testing support and the addition of a new community initiative.”

  • Xen 4.16 Released With Improved Performance, Expanded Hardware Support - Phoronix

    Xen 4.16 delivers on various performance improvements to this hypervisor, improved Trusted Platform Module support in working towards TPM 2.0 compatibility, support for Intel x86 hardware lacking a programmable interval timer, initial support for Arm Performance Monitor Counters, improved support for Arm 64-bit heterogeneous big.LITTLE systems, continued work towards bringing up RISC-V support, and various security improvements.

Developing A Game Engine with Perl

  • Developing A Game Engine with Perl : Part 2 - Mouse Input | Shawn [blogs.perl.org]

    Let me start by saying.... I DO NOT KNOW WHAT I AM DOING. Literally, developing a game engine is not on my resume... yet! So any code or ways of doing anything you read here, is just what I've figured out and works for me, which by no means should suggest to you that it is the proper way to do what ever it may be. Please consult your local guru first. OK, now that we have that established... Please consider the following as entertainment and should you learn along the way with me, that's wonderful! Now, by the time of writing this article, I am several months into this undertaking. I'll describe in future posts what the engine is capable of, but for today, let me tell you about what happened over the last 2 weeks. I will likely break them up into separate posts for easier consumption.

  • Developing A Game Engine with Perl: Part 3 - Hardware Failure & Server Upgrade | Shawn [blogs.perl.org]

    It's been a while since I've had to look at system logs in Linux OpenSuSE. I used to remember just doing a tail -f /var/log/messages or what ever log file you wanted to watch. I guess at some point since then they switched to using systemd journal service and you can now view everything using journalctl

  • Developing A Game Engine with Perl : Part 4 - UEFI vs OpenSuSE Installer | Shawn [blogs.perl.org]

    This is where things get interesting. After finally getting the computer together, I downloaded the OpenSuSE ISO for 64bit. I went with Tumbleweed again. It worked well with the last server, so I'll just go with what I know. Tumbleweed is a rolling release linux, which means I shouldn't have to reinstall when a new version is released and I should still stay up to date. I created a bootable USB from ISO in Ubuntu 20.04 (My Desktop). Booted the new computer, installed OpenSuSE, and was happy... until I tried to reboot. When I rebooted, I pulled out the USB stick and the BIOS said no boot drives. I knew of UEFI, and started reading. I found that in /boot/efi/ there was no EFI directory. If you don't know anything about UEFI (No worries, neither do I) ..apparently there is supposed to be a Fat32 partition marked as type EFI. The BIOS checks for this location and attempts to load the OS this way as apposed to using the MBR for booting like in the old days.

  • Developing A Game Engine with Perl: Part 5 - 32bit -> 64bit & Perl's Storable | Shawn [blogs.perl.org]

    After doing some quick reading, I came to understand that Perl uses architecture specific ways to save content to files when using Storable. Specifically if you use lock_store and store. These are part of Perl's core system and what I use throughout the engine for working with the file structure. I had to carefully re-read the perldoc's to discover that you can avoid architecture incompatibility by simply using nstore and lock_nstore The method you use for retrieving the stored files doesn't matter, only when storing the data into files does it matter. I tried to find ways of being able to convert the stored files from 32bit architecture to 64bit, but ultimately the only real option was to use the old server to re-store the files with lock_nstore.

Games: Steam Next Fest, Heroic Games Launcher, and More

  • Steam Next Fest gave developers a '500%' increase in converting wishlists to sales | GamingOnLinux

    Valve has written up a short blog post going over how their Steam Next Fest has improved things for developers, and it seems by a huge amount in some cases. For users who haven't seen one before, Steam Next Fest is a regular event Steam now runs a few times a year, that gives developers some extra time in the spotlight. Developers can offer up limited-time demos, do livestreams and talks - all in the name of pulling in my wishlists and sales.

  • Heroic Games Launcher for Epic Games appears popular with over 100K downloads | GamingOnLinux

    Despite the Epic Games Store not offering Linux support at all, it still seems to be somewhat popular with Linux users as the unofficial Heroic Games Launcher hit a big downloads milestone. Taking into account that the project does now also support Windows and macOS, it was originally Linux-only up until July 2021 where it gained initial support for the others. In early November developer Flávio F Lima noted Heroic had hit 100,000 downloads, and less than a month later it's hit another 10,000+ according to the GitHub project page.

  • Steam sees more growth with Linux gamers, and Windows 11 popularity surges

    Admittedly in November, there was only a very slight uptick of 0.03%, but that’s still an increase, taking Linux to 1.16% as mentioned.

Open 3D Engine (O3DE) Update

  • Open 3D Foundation announces first major release of Open 3D Engine

    The news in brief: Simulation developers can now create 3D content with the new Open 3D Engine (O3DE) Linux editor and engine runtime, and a new Debian package and Windows installer provide a faster route to getting started with the engine. [...] In July, we formed the Open 3D Foundation and released the Developer Preview of Open 3D Engine—a modular and extensible engine free from commercial license requirements that includes a multi-threaded photorealistic renderer, a 3D content editor, a server authoritative networking stack with native cloud integrations, and a programmable asset processing pipeline. The Developer Preview gave the community early access to a source-only version of the engine in order to evaluate the core set of capabilities, provide feedback on the project, and begin contributing to O3DE’s development and governance. With today’s release, developers can build 3D games and simulations, or a customized game engine on a stable foundation with support from the O3DE community and O3DF. Developers using Linux can now install a native version of the engine with the Debian-based Linux package distribution. Teams using Windows can get started even faster with a verified Windows installer. This release also adds new developer features such as performance profiling and benchmarking tools, an experimental terrain system, a Script Canvas integration for the multiplayer networking system, and an SDK to facilitate engine customization with platform support for Windows, Linux, MacOS, iOS, and Android. In addition to core engine capabilities, Open 3D Foundation members have contributed new capabilities to O3DE through the extensible Gem system. Kythera released an update to their artificial intelligence Gem to add support for pre-built O3DE SDK, enabling creators to include AI behaviors in their games and simulations. Cesium released a geospatial 3D tile extension. PopcornFX released a Gem for particle visual effects. The Gem system has also been extended to enable external Gem repositories, making it even easier to add capabilities from third party contributors.

  • O3DE 21.11 Released As First Major Open 3D Engine Release - Phoronix

    This summer there was the surprise announcement of Amazon's Lumberyard game engine being open-sourced and it being developed as the Open 3D Engine by the then newly-created Open 3D Foundation as part of the Linux Foundation. Amazon's Lumberyard served as the basis for the Open 3D Engine as an Apache 2.0 licensed game engine available without any commercial terms or other obstacles. In the months since this code has continued to be refined, initial Linux support added after embarrassingly not having this at time of announcement for this Linux Foundation hosted effort, and growing industry/developer interest in this open-source game engine option.

  • Open 3D Engine (O3DE) sees a first major release, Linux support in preview | GamingOnLinux

    Open 3D Engine (O3DE) from the Open 3D Foundation is what was once Amazon Lumberyard, now open source it's just had a first major stable release.

  • In 2021, the Linux Foundation Drove Innovation Across the Technology Spectrum and in Key Industry Verticals - Linux Foundation

    The Linux Foundation welcomed the Open 3D Foundation into its community of families in July of 2021. The first project in the foundation was the Open 3D Engine known as O3DE. Amazon Web Services donated it under an Apache 2.0 and MIT licensing model. The mission of the Open 3D Engine is to make an open source, fully-featured, high-fidelity, real-time 3D engine for building games and simulations available to every industry. Since its inception, it has raised $2.7 million in commitments from 26 partners in over two years. It has received signed commitments from a range of companies such as Adobe, Intel, AWS, Niantic, Huawei, SideFX, HERE, and others. The foundation is focused on industries that utilize 3D technologies. This includes video games, automotive, simulation, robotics, energy, real estate, training, film, special effects, machine learning, aerospace, and many other verticals. Since its inception, it has grown to over 3600 stars, 1100 forks of the repository, 1,500 Discord users, and 500+ active members are online. It has increased to over 130 authors of code, 7000 file changes, 2,000,000 changes to lines of code, and a vibrant & active self-sustaining support community averaging 500 messages & minutes per day.