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Open Hardware Leftovers

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  • How to get clean analog audio from a Blue Yeti microphone into a Sony a6400 camera using a Raspberry Pi Zero

    You can connect the headphone out of a Blue Yeti microphone into the mic in of a Sony a6400 camera but the quality of the audio you get will depend on how clean the USB source powering your Blue Yeti is.

  • Indian tech cos join hands to make open source based oxygen concentrators; to be priced at around Rs 40k

    Indian tech cos join hands to make open source based oxygen concentrators; to be priced at around Rs 40kA group of small and medium Indian technology companies and a defence PSU have joined hands to manufacture oxygen concentrators based on an open source design project Marut, initiated by robotic and automation startup Technido to meet the immediate need of patients and reduce dependency on imports.

    According to the companies involved in the project, the oxygen concentrator (OC) with 10 litres per minute flow with purity of above 93 per cent and capability to operate round-the-clock can be retailed at about half the price of imported units in the range of Rs 65,000-70,000 per piece.

    The prices can further reduce to Rs 35,000-40,000 apiece on bulk purchase of 100 units or more, according to Technido.

  • Stryde is an Arduino Nano Every-powered MIDI preset loader

    MIDI-controlled instruments are awesome, as custom sounds can be loaded and dynamically changed while you play. However, accessing these effects often requires an external controller that can get expensive and complicated. That is why music enthusiast Joe King created the Stryde, which is a fully integrated MIDI preset loader within a small enclosure. Stryde uses an Arduino Nano Every at its core to store presets, display information, and select effects.

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.