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GNU/Linux on Devices and More

Submitted by Roy Schestowitz on Friday 10th of December 2021 04:35:28 PM Filed under
GNU
Linux
Hardware
  • Voltage mode control for gimbal motors

    The moteus brushless controller can drive many motors out of the box, but until now it has been challenging to use with gimbal style brushless motors. They are wound with thin wire so that they have a very high winding resistance, and thus can be driven by inexpensive low current controllers. Using something like moteus with a gimbal motor isn’t absolutely necessary, but does give benefits in terms of high performance trajectory tracking and torque control.

  • Experience the gravity of Pluto with the Original Solarfidget | Arduino Blog

    A fidget spinner might entertain you for a short time, but unless you’re an astronaut you will only be able to experience it in Earth gravity. Wouldn’t it be fun if you could play with a fidget toy in a variety of planetary gravity magnitudes? Now you can, thanks to the Original Solarfidget.

    The Original Solarfidget is a DIY desk toy similar to a fidget spinner. Pick up the puck-like device and give it a little jostle to start the LEDs spinning. They’ll spin for a while before slowly coming to halt. If you tilt it, the LED will settle at the bottom of the puck like pendulum. But here’s where the fun comes in: it can react to different gravity levels. That means you can see how the LEDs would spin in the heavy gravity of Jupiter or the miniscule gravity of Pluto.

  • Why we will win the war for general-purpose computing

    Recent online articles have sounded the alarm over an escalating "war" on General Purpose Computing (GPC). Tech Giants have consolidated more power during the pandemic and are flexing their muscles, locking down systems more tightly, and becoming audacious in their open disrespect for digital rights and privacy. Much of this occurs under the pretext of security or compliance. Personal computers, once tools of choice, are being recklessly pushed aside in some societies in favour of "necessary" always-on, permanently connected mobile appliances.

    Here I hope to offer a different perspective and explain why, as a technological optimist 1, I don't think this will work out. In this essay we will examine why there's a problem, and make the case that advanced technological societies must always retain open, general purpose personal computers, strictly under the control of their users, and that the market for these is set to grow.

  • JK01 is a mini PC with Intel Celeron N5095 for $140 and up - Liliputing

    And the little computer supports WiFi 5 and Bluetooth 4.2 wireless connections. According to product listings, the system supports Windows 10 and Linux, but it’s unclear if it actually comes with an activated Windows license pre-installed (obviously you’ll need to supply your own OS if you purchase the barebones model which doesn’t come with any storage).

  • The cheapest Jasper Lake mini PC so far: JK01 for $140 and up - CNX Software

    If you’d like to get an idea of the performance, you can check out Ian’s review of Beelink U59 mini PC also based on the Intel Celeron N5095 processor, and tested with Windows 11 and Ubuntu 20.04/21.04. Note there will always be some small variation between systems with the same processor, either because of cooling, memory configuration/bandwidth, or storage (SSD vs SATA), but it can still serve as a rough guide of expected performance.

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More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

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