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Open Hardware: Raspberry Pi History and Arduino Projects

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  • Raspberry Pi History

    From building a single board computer for educational purposes and personal entertainment to selling more than 40 million boards around the globe, Raspberry Pi has come a long way. Raspberry Pi devices are developed by a UK-based charity that aims to deliver the power of digital computing to people across all sections of the world. Raspberry Pi foundations empower low-cost and high-power single-board PCs and software.

    Most of the schools and colleges prefer Raspberry Pi units for general purposes. However, Raspberry Pi was not intended as a charity program earlier. It was a small team of the computer laboratory at the University of Cambridge that discovered a declining interest in computers due to increasing costs and tough maintenance of typical computer systems. This is where they decided to get a solution to this problem and thus, Raspberry Pi was born. Let’s discuss the journey of Raspberry Pi from 2012 until now.

  • This light painting machine puts a new spin on the old geometric chuck | Arduino Blog

    Light painting is a fun way to create digital images by using just a few points of light to “draw” across a camera with a long exposure time. This gives the illusion of a virtual streamer being dragged on the canvas and can produce amazing photos. Ted Kinsman wanted to build a light painting machine, which mimics the geometric chucks from the 1860s that used several spinning platters on a lathe that rotated at different speeds to carve ornate patterns into wood. His version has a series of three platters all stacked on top of each other and are driven by three stepper motors.

  • VoiceTurn is a voice-controlled turn signal system for safer bike rides | Arduino Blog

    Whether commuting to work or simply having fun around town, riding a bike can be a great way to get exercise while also enjoying the scenery. However, riding around on the road presents a danger as cars or other cyclists / pedestrians might not be paying attention while you try to turn. That is why Alvaro Gonzalez-Vila created VoiceTurn, a set of turn signals that are activated by simply saying which direction you are heading towards.

    VoiceTurn works by using the Arduino Nano 33 BLE Sense at its heart to both listen for the “left” or “right” keywords and then activate the appropriate turn signal. Gonzalez-Vila took advantage of edge machine learning through the Edge Impulse Studio. First, he collected audio samples consisting of the words “left,” “right,” and then random noise via the Google Speech Commands Dataset. Next, he sent them through an MFCC block that does some processing to extract human speech features. And finally, the Keras neural network was trained on these features to produce a model.

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today's howtos

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    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

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  • 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
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