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GNU/Linux and Arduino Devices

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  • Congatec unveils i.MX8M Plus SMARC COM and COM-HPC starter kit

    Congatec announced a “Conga-SMX8-Plus” SMARC 2.1 module with dual GbE support that runs Linux on an i.MX8M Plus. The company also offered new details on a COM-HPC starter kit for its Tiger Lake based Conga-HPC/cTLU module.

    Congatec unveiled a Conga-SMX8-Plus SMARC 2.1 module with an NPU-equipped NXP i.MX8M Plus. As part of its virtual Embedded World roll-out, the company also added some new details on a COM-HPC starter kit for its 11th Gen Conga-HPC/cTLU module that was previewed back in November (see farther below). Finally, Congatec re-announced a COM Express Type 6 Conga-TCV2 module featuring with AMD’s Ryzen Embedded V2000 that we covered in November.


    The Conga-SMX8-Plus runs standard Linux, Yocto Project Linux, or Android with U-Boot on the quad-core Plus model with NPU.

  • Disassemble Librem 5

    The Librem 5 is designed for longevity with software updates for life, but part of longevity is also being able to repair a device outside of warranty. We plan to stock replacement parts in our shop in case you need to replace your modem, camera, or even the main PCB.

    Disassembling your Librem 5 may risk damaging it. Any damage from disassembly is not covered in your warranty. If your Librem 5 is under warranty, please contact support first before you attempt this process.

  • Gunnar Wolf: The power of EIDE

    I am quite happy with the Raspberry “tower” I bought for keeping my Raspberries organized. Clustering them? No, not by a long shot. I just want to quickly know where they all are, and at a glance, be able to know which one I will work with. Bottom drawer has a RPi1B, second one has a RPi2, next comes a 3B+, and the top two ones are RPi4 (4 and 8GB). That allows me for quick testing of stuff. Yes, I am tempted to get the top one out of the array and use it in “production”… but as it stands, that’s the layout.


    …As a service to clumsy computer repairers such as myself, the standard specifies pin 20 is not to carry any signals, and the drive headers are to ship it cut (Key, pin missing), so that –together with the notch on the outer part of the bracket– inserting the cable upside down is physically impossible.

    So no, I’m not able to finish the project with pieces at hand. I even went to two nearby electronic shops yesterday when I took my dog out for a walk, and could not find it there either… So I ended up buying what appears to be a sweet, cheap product covering my needs from our corporate capitalist overlords.

  • Arduino Blog » Zach Frew’s Liquid Lite Brite creates low-res art out of liquid dye

    Liquid distribution is calculated with the help of a Python script that takes a 24×16 pixel image as input and assigns each pixel an RGB value. The “printing” is handled by the common RepRap configuration of an Arduino Mega and a RAMPS 1.4 shield, plus a PCA9685 expander chip. The X, Y, and Z axes move via stepper motors and rails, while color mixing is accomplished using five servo-actuated valves. A stepper-driven peristaltic pump is employed for liquid placement, producing low-resolution yet no less beautiful art.

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.