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Open Hardware/Modding: Librem and Arduino

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Hardware
  • Weaving just got a lot better thanks to this Arduino-controlled Jacquard loom | Arduino Blog

    Jacquard looms revolutionized the weaving process by independently controlling each heddle’s position. That made it possible to weave complex patterns. But modern Jacquard looms are very expensive, because they require a solenoid or other means of actuation for each and every heddle. Lea Albaugh and her team at Carnegie Mellon University found an affordable way to build a Jacquard loom from 3D printer parts — including an Arduino-based controller.

    The key development for this Jacquard loom was a special bistable switch for each heddle. Those switches keep their heddles in the position in which they were last set. That makes it possible to set the heddle positions sequentially, instead of simultaneously with a multitude of solenoids. All of the heddle positions can be set by a single solenoid, which slides back and forth across the loom. This keeps costs down and makes it possible to build a Jacquard loom for about $200 using common 3D printer components.

  • Librem 14 and Librem 13: A Side-by-Side Comparison – Purism

    The Librem 13 and 14 come in a similar footprint, but with some notable improvements in this latest generation.

  • Extending a mobile AC unit's exhaust duct with an air extractor | Arduino Blog

    Portable air conditioners are amazing, especially as we head into the hot summer months. But one big downside is having to place them close to a window that will fit the guard, otherwise it’s really tough getting the hot exhaust air out of the room. This is exactly the problem Hackaday user vincentmakes ran into when he set up a portable AC unit, as his window was the wrong shape. To solve it, he created a little system that allows the AC unit to be plugged in on one side and then match its air flow to shoot hot air out of the window.

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.