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Open Hardware/Modding: Librem, Arduino, and ESP32

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Hardware
  • Crossing the Chasm Toward the Tipping Point

    The Librem line, PureOS, and Librem One is the foundation for expansion. The Librem line: Librem 14 laptop, Librem 5 phone, Librem 5 USA (with Made in USA Electronics) phone, Librem Key, Librem Mini, Librem Servers. With the Librem line we have a well rounded hardware offering that runs PureOS.

    PureOS: A GNU-based 100% free software truly convergent operating system developed and maintained by Purism pushes the boundaries across our hardware innovations to have a single easy-to-use OS that is on pace to rival the giants. Purism’s PureOS was also where all the development occurs for what we later pushed into GNOME; phosh, phoc, libhandy (now libadwaita), squeekboard, calls, chats, and the long list of adaptive applications. Other companies are adopting PureOS as their base OS for other industries, automotive, drones, IOT, and services; including our very own Librem One.

    Librem One initially a reference platform, will see tighter integration into PureOS and the Librem line since it directly impacts the long-term goal of Purism: to make beautiful convenient products that respect the rights of humans. The ‘convenient’ part of that continues to be a major investment we make.

  • Electromechanical four-digit seven-segment clock displays the time silently | Arduino Blog

    While digital display technologies exist for just about every possible use case, sometimes you want the aesthetics that only electromechanical displays provide. Many makers have built electromechanical seven-segment displays for this purpose, but they are usually driven by noisy servo motors. David McDaid wanted something quieter and created this silent electromechanical four-digit seven-segment display for use as a wall clock.

    Like most similar displays, this uses an individual motor for each segment of each digit. For four digits, that is a total of 28 motors. 28 servo motors get quite noisy, which is why McDaid employed stepper motors paired with silent drivers. Those are typically used for 3D printers in order to make those printers less annoying, but they work well for this project, too. Those stepper motors only need to tilt their respective segments by 90 degrees to “turn off” that segment, so little torque was required.

  • ESP32 Composite Video Library outputs PAL, SECAM and NTSC, supports LVGL - CNX Software

    It’s been possible to use the I2S for video output on ESP8266 and ESP32 chips for years, but aquaticus’ ESP32 Composite Video Library is may simplify the task of outputting PAL, NTSC, or SECAM video signals from any Tensilica-based ESP32 platforms.

    The library does not require any external hardware, and you can just connect an RCA connector to GPIO25 (I2S data) and GND, plus integration with the LVGL library makes it easy to create graphical user interfaces as showcased with the captures below.

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.