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GNU/Linux on Devices

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  • CatsPi Industrial Lite RPi CM4 carrier board features GbE, RS485, Watchdog MCU - CNX Software

    We’ve seen a fair deal of Raspberry Pi CM4 carrier boards, and here’s another one courtesy of QwaveSystems with CatsPi Industrial Lite board following Raspberry Pi SBC form factor/dimensions, and equipped with Gigabit Ethernet, RS485, USB ports, as well as a watchdog MCU among other interfaces and features.

    Contrary to what the name implies, CatsPi Industrial Lite only works with Raspberry Pi CM4 with eMMC flash, but not the CM4 Lite module since there’s no MicroSD card on the baseboard. It’s not the first Raspberry Pi Compute Module 4 carrier board with RS485, however, as we previously covered CM Hunter also including CAN and 1-wire interfaces, but QwaveSystems’ solution is more compact and mostly mechanically compatible with Raspberry Pi model B SBC’s.

  • Top 10 Linux Compatible Wireless Network Adapters | FOSS Linux

    Many Linux users find it challenging to choose the best network adapter compatible with their devices. The difficulty in selection is due to driver and software compatibility issues. Some of the adapters require drivers, while others do not. This complicates the selection process since users do not know which network adapter best suits them.

    Thousands of ‘fake’ network adapters have dominated the market. Therefore, finding a legit adapter becomes more complicated. If you are looking for a Linux-compatible network adapter, let us help you suggest the 10 best Linux-compatible network adapters.

  • IAR Systems extends product portfolio for streamlined Linux-based automated workflows

    IAR Systems®, the future-proof supplier of software tools and services for embedded development, today presented the latest addition to its powerful build tools for Linux, which are based on the well-known build tools in the development toolchain IAR Embedded Workbench®. The extended tools now support deployment in Linux-based frameworks for Renesas’ low-power RL78 microcontrollers (MCUs), enabling organizations to streamline building and testing workflows.

  • Offsetting Transmitter Frequency to Reduce Interference

    Lately I’ve seen a number of discussions about adding a frequency offset to an ATSC 1 signal to reduce interference. The issue came to light when it was discovered that at least one major manufacturer’s transmitters do not meet the manufacturer’s FCC emission mask test when the recommended co-channel ATSC offset is added.

    This month I’ll look at what ATSC has to say about frequency offsets and how they work. The ATSC 3.0 standard also includes options for not only frequency offsets but bandwidth reduction as well.

    Finally, I’ll report on my recent testing of the Hauppauge WinTV quadHD USB ATSC tuner. It uses a different tuner/demodulator chip than I’ve seen used with any other ATSC USB tuner.

    [...]

    The good news is that the tuner works great in Kaffeine (a Linux TV viewer and recorder) and, with four tuners, multiple channels can be recorded simultaneously.

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.