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Programming and Open Hardware Leftovers

Submitted by Roy Schestowitz on Monday 20th of April 2020 12:58:49 PM Filed under
Development
  • The [Perl] Weekly Challenge #056

    Before I say anything about my contributions, I would like to share my sweet encounter with Raku. Last week while working on the task Flip Binary using Raku, I was struggling to figure out all the binary strings with maximum 1s. I had the results in a Hash where key was the binary string and value was the total count of 1s in it. The idea was to sort the Hash by values first then sort by keys. After posting the question on the Twitter handle @PerlWChallenge, I received the below solution by PawgChamp (@Mrofnet).

  • Dirk Eddelbuettel: prrd 0.0.3: More improvements

    Back in early 2018, the prrd package was introduced as release 0.0.1, uploaded to CRAN, and updated once as release 0.0.2. I have used it extensively for every CRAN release of Rcpp, RcppArmadillo, RcppEigen, BH, and possibly others.

  • Introduction to jQuery – Learn jQuery

    Modern web application development is incomplete without learning jQuery. Almost all of us have heard of it at some point while browsing the Internet. In this series of articles, we will learn jQuery, the most popular Javascript framework. At the end of the series, we will build multiple projects to better understand jQuery.

    In this article, we will talk about what jQuery is. How it works. Why prefer jQuery over Javascript.

    Before we move on to discussing how to install jQuery and other advanced topics, let us talk about some basics of jQuery such as, what is jQuery?

  • Getting Started with Qoitech Otii Developer Tool using ESP8266 and Raspberry Pi 4 Boards

    Last month, I received Qoitech Otii Arc power supply, power meter, and DAQ unit that aims at helping hardware and software engineers develop energy-efficient products.

    I’ve now had time to test the unit with an ESP8266 board and Raspberry Pi 4 SBC, so I’ll show how to get started and my overall experience with the hardware and program.

  • Best Arduino Starter Kits

    When you start out with Arduino, you have a vast selection of choices. This may be confusing. To make it easier, start by thinking what you want your first project should do for you. The different packages have more or less components. Motors and servos, sensors and LEDs are usually included but not always.

    Arduino is many boards, based on micro controllers from ATmega. Since Arduino is open source, there are also many other manufacturers that do the same. The best way to start is to use a starter kit with the UNO v3 board. There are many others, but this one is easy to get started with and cheap.

»

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.

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