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Open Hardware: Raspberry Pi and Arduino, Among Others

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Hardware
  • Raspberry Pi Imager update
  • Piunora has the guts of a Raspberry Pi 4 with Arduino form factor, M.2 PCIe socket

    The Raspberry Pi 4 is a pretty cool board, but if you wished it was just a bit smaller, and you could use the PCIe interface exposed by the Broadcom BCM2711 processor more easily, Timon has designed Piunora carrier board for the Raspberry Pi Compute Module 4. The solution provides a board with the guts of Raspberry Pi 4 SBC but using the Arduino form factor including access to the six ADC pins, and an M.2 socket with the PCIe signal from the Broadcom SoC.

  • Arduino Blog » Mesmerize your holiday guests with these motor-driven rheoscopic fluid ornaments

    We’ve all see Christmas ornaments shaped like a ball – interesting, but a bit passive. Will Donaldson, however, has created an amazing enhancement for these “orbaments,” adding a rheoscopic fluid inside that shows turbulent swirling patterns as it moves.

    The fluid is simply tap water and food coloring, plus the special rheoscopic concentrate that contains an array of light reflecting particles. To maintain a state or turbulence, Donaldson affixed a small drone-style motor to the hanger assembly on top of each orb using hot glue.

    Motors were inserted with propellers attached, which were bent to fit inside. To vary the speed of the turbulence, Donaldson included an Arduino Nano, along with an L293 driver, using the analogWrite() function for PWM control.

  • Notecard LTE Cat-M / NB-IoT M.2 modem sells for $49+ with 10 years of connectivity

    The company also offers a range of carrier boards for people not wanting to design their own custom baseboards for Notecard M.2 module that include support for LiPo or AA battery, Raspberry Pi HAT, a minimal board with micro USB, and one model designed for “embedded design”, meaning integration into end products.

  • Himax WE-I Plus EVB AI development board supports TFLite for microcontrollers

    The low power consumption technology of the development board reduces the current requirements. This significantly improves the design by eliminating the heat factor. The ASIC optimized for DSP intensive deep learning applications makes it multifunctional to perform voice, vision, and vibration detection and recognition. The all-in-one EVB contains many inbuilt devices that make it a good option over other “high profile boards such as the Arduino Nano 33 BLE Sense and ESP32” The support for the Tensorflow Lite Microcontrollers adds an additional feature of easy deployment. In terms of performance, the latency time for the 250KB TensorFlow Lite for Microcontrollers “Person detection” example is only 40ms, while the latency time of the 20KB TensorFlow Lite for Microcontrollers “Micro speech” example is only 6ms.

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.