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Open Hardware: Librem 5, Arduino and More

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  • Librem 5 News Summary: April 2021

    Last month we announced progress with Librem 5 camera support, but at the time pictures were still being taken using command line commands. Now that the hardware is supported in the kernel, the next area of focus has been in post-processing the raw images from the camera sensors as well as providing support in user-facing GUI applications.

    This month we added Librem 5 camera support to the megapixels app so now you can take pictures from a GUI application. Now that the camera is supported in the app, focus can shift (pun intended) to tuning color and white balancing and other post-processing in the live viewfinder (you can see in these example pictures that the live viewfinder image isn’t yet color corrected or white balanced while the picture the Librem 5 took is) as well as further refinements on image post-processing.

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  • Now free! Get the Arduino Create app for Chrome classrooms

    In the latest Arduino Education update, we’ve made the Arduino Create app free for Chrome. From today, as many educators, students, and parents around the world as possible can now access the Arduino Create Agent.

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  • Spinning gyroscope “boat” stabilization | Arduino Blog

    When you use a “gyroscope” in Arduino and robotics projects, generally this means a small IMU that leverages several methods of sensing to tell how a device is moving. However, physical gyroscopes are able to employ a spinning disk stay upright mechanically. Could one be combined with advanced electronics to stabilize a robot or other craft?

    James Bruton answers this question in the video below, going from a “bare” gyroscope, to an unpowered gimbal, and finally to a simulated boat. This utilizes a powered gimbal for stabilization that’s tilted in one axis by a DYNAMIXEL servo. Angle is measured using an Arduino Pro Mini along with an MPU-6050 IMU, and the gyroscope is controlled by an Arduino Mega.

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  • This arm-mounted contraption provides guidance in VR | Arduino Blog

    Virtual reality (VR) technology has improved dramatically in recent years and there are now a number of VR headsets on the market that provide high-quality visual immersion. But VR systems still struggle to stimulate our other senses. When you can’t feel the virtual objects that you can see, the immersion falls apart. That’s why an international team of researchers has developed GuideBand, which is an arm-mounted contraption that physically guides players within VR.

    This device looks a bit like an external fixation apparatus for securing broken bones. It straps onto the user’s arm and has three motors controlled by an Arduino Mega via TB6612FNG motor drivers. The first motor moves the device’s gantry radially around the user’s arm. The second motor adjusts the angle of attack, offset perpendicularly from the forearm. The third motor acts as a winch and pulls a cable attached to a strap on the user’s arm.

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  • Share your Arduino projects on EDUvision | Arduino Blog

    We’re on the lookout for the most creative and innovative Arduino projects made by you – our EDUvision viewers!

  • Pico Wireless is an ESP32 add-on board for Raspberry Pi Pico - CNX Software

    I understand hardware is cheap now, but the madness has to stop! Pimoroni Pico Wireless is an upcoming add-on board for Raspberry Pi Pico adding a MicroSD card and ESP32 WiFi & Bluetooth module.

    While it’s a nice idea to add wireless connectivity to Raspberry Pi Pico, ESP32 is a dual-core Xtensa LX6 processor clocked at 160 to 240 MHz with WiFi, Bluetooth, and plenty of I/Os that should be able to handle most tasks better than Raspberry Pi RP2040 dual-core Cortex-M0+ processor clocked at 48 MHz by default, although we’ve also seen it overclocked up to 252 MHz.

  • AAEON Announces Official Support for NVIDIA Ubuntu, Jetpack 4.5 and Secureboot on BOXER-8200 Systems

    AAEON, an industry leader in embedded AI Edge systems, announces new software support for the BOXER-8200 series of embedded PCs featuring NVIDIA® Jetson™ System on Modules (SOM). AAEON has officially signed an agreement with Canonical to provide customers with the NVIDIA Ubuntu operating system pre-installed on new BOXER-8200 systems. Systems with the NVIDIA Ubuntu OS will also ship with the Jetpack 4.5 drivers and toolkit package preinstalled. Additionally, AAEON announces a new customization services to provide Secureboot to clients in addition to other customization options.

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Dilution and Misuse of the "Linux" Brand

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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.