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Devices With Linux and Other Free Systems

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Hardware
  • Embedded Linux development on Ubuntu – Part I | Ubuntu

    Throughout this series, we will discuss the key challenges of traditional software distribution mechanisms for embedded Linux devices. We will understand why legacy development and update approaches do not suit the Internet-of-Things (IoT) world and assess how Ubuntu simplifies and secures embedded Linux development.

    Although you don’t need prerequisite knowledge to follow this series, we recommend you have a basic understanding of the role played by Linux in the embedded portion of the compute spectrum. If you are new to the space and just getting started from scratch, get an intro to embedded Linux or delve into the official guide to Linux for embedded applications.

  • DepthVista combines RGB and 3D Time of Flight depth cameras

    Last week, e-con Systems launched the DepthVista camera which contains both an RGB and a Time of Flight (ToF) depth camera with a range of up to six meters. According to the company, the DepthVista can measure the distance from itself to a target object with an accuracy of < 1% depending on environmental conditions.

    The RGB camera integrated on the DepthVista is the AR0234CS CMOS digital image sensor (1/2.6-inch) from onsemi which is optimized for capturing high definition images for fast-moving objects. On the other hand, the 3D camera implemented seems to be the See3CAM_2TOF_5CUG from e-con itself.

  • Rockchip RK3588 CPU module exposes more I/Os through four board-to-board connectors - CNX Software

    We’ve already seen several Rockchip RK3588 modules with Firefly Core-3588J, Turing RK1, and Banana Pi RK3588_CV1, all with an edge connector to insertion into the carrier board. Rongpin RD-RK3588 system-on-module is a little different with four board-to-board connectors that enable a slightly more compact design, and should expose more I/Os than say a 314-pin MXM edge connector.

  • Meet Bittle, an Advanced Open-Source Robot Dog by Petoi - The DIY Life

    This is Bittle, a ready-to-run advanced open-source robot dog by Petoi that is based on the OpenCat robotic pet framework.

    If you’ve ever wanted to explore building your own robotic quadruped, but have felt overwhelmed by the amount of information and options available or have been at a loss with where to start, then Bittle is the perfect product for you. So in this review, we’ll take a look at what Bittle is, how it works and what it can be used for.

  • Remote indoor air quality monitoring with the Arduino Nicla Sense ME and Nano 33 IoT | Arduino Blog

    Most air quality-sensing devices integrate their sensors into the same enclosure as the display, which can make getting an accurate reading tough since the viewer is directly next to the unit and could potentially skew the values. This is why one element14 community member Enrique Albertos created his own portable air quality monitor that separates the sensing module from the screen.

    His system uses one Nicla Sense ME to gather air quality information about the surrounding environment with its onboard BME688 gas sensor. It is highly capable too, as it can quantify pressure, humidity, temperature, VOCs, VSCs, and various other harmful gases such as carbon monoxide. From here, the Nicla Sense ME sends its data over Bluetooth to an awaiting Nano 33 IoT board. The Nano is connected to a 1.8” TFT screen, which shows several pages of information that are cycled through by pressing one of the buttons at the bottom of the device.

DepthVista again

  • DepthVista USB 3D ToF camera supports close range depth measurement, far-range object detection

    DepthVista is a USB Time-of-Flight (ToF) camera designed for precise 3D depth measurement in close range mode (1.2m) and person and/or object detection in far-range mode up to 6 meters away.

    This ToF camera combines a 3D depth camera capable of 640 x 480 @ 30fps, and an Onsemi AR0234 color global shutter sensor supporting HD and FHD at up to 30fps, plus an 850nm VCSEL (vertical-cavity surface-emitting laser) for safety and the ability to operate in complete darkness.

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today's leftovers

  • Greece about to secure Router Freedom but leaves fiber out

    Greece is one step closer to securing Router Freedom, but regulators are excluding fiber (FTTH) connections from the legislation. A coalition of organisations, allies of the FSFE, is now requesting that lawmakers reconsider this and thus safeguard the freedom of all users. Since 2021, the regulatory process that defines the network termination point (the NTP) in Greece has been carried out by the Hellenic Telecommunications and Post Commission (EETT). Defining the NTP is necessary to determine whether users have the right to choose their own router and modem or if their Internet Service Providers (ISPs) have the final say over network equipment. In April 2022, we welcomed that the Greek regulator proposed legislation safeguarding Router Freedom for common networks, such as DSL and coaxial. This is a leap forward in safeguarding consumer rights. However, in the same proposal, EETT has explicitly excluded fiber connections (FTTH), a decision that has the potential of negatively impacting end-users’ rights. The proposed regulation sets the NTP for fiber connections in a position that would make the optical terminal equipment part of the ISPs’ networks, making home network access equipment the property of the ISP. The FSFE assisted a coalition of organisations to respond to the EETT’s public consultation, supporting the regulator to implement Router Freedom for all types of internet connection, including FTTH.

  • Sentry: Why we support OSI

    Sentry is a developer-first application monitoring tool that allows development teams to holistically monitor their application health from frontend to backend. Used by 3.5 million developers and 85,000 organizations including some of the world’s best-known companies including GitHub, Peloton, Cloudflare and more.

  • IBM’s AI-powered Mayflower ship crosses the Atlantic [Ed: This was a complete failure. It did not even reach its destination.]

    A groundbreaking AI-powered ship designed by IBM has successfully crossed the Atlantic, albeit not quite as planned. The Mayflower – named after the ship which carried Pilgrims from Plymouth, UK to Massachusetts, US in 1620 – is a 50-foot crewless vessel that relies on AI and edge computing to navigate the often harsh and unpredictable oceans.

  • HPE Allies With Red Hat and SUSE on Containers - Container Journal

    At the HPE Discover 2022 conference, Hewlett-Packard Enterprise (HPE) today expanded its reach into container environments via separate alliances with Red Hat and SUSE. The Kubernetes-based Red Hat OpenShift platform along with Red Hat Enterprise Linux (RHEL) operating system and Red Hat Ansible automation platform will be made available via the HPE GreenLake managed service, HPE said.

  • Bishop AI: A JavaScript-based Virtual Assistant With Natural Language Processing

    It was created in 2018, making it one of the newest open source software. And it is also released under the MIT license. The program is written in JavaScript, and built to handle Q/A style conversation. [...] Bishop AI is a MIT project; that’s why it is very likely that you will find it already packaged and available to install.

  • AI Based Virtual Assistant in Python

    Many automation tools aims to help user in many fields in their life such as opening any application on the system, play and control music, solve mathematical expressions, getting weather details, and more.

today's howtos

  • Notes on running containers with bubblewrap

    Hello! About a year ago I got mad about Docker container startup time. This was because I was building an nginx playground where I was starting a new “container” on every HTTP request, and so for it to feel reasonably snappy, nginx needed to start quickly. Also, I was running this project on a pretty small cloud machine (256MB RAM), a small CPU, so I really wanted to avoid unnecessary overhead. I’ve been looking for a way to run containers faster since then, but I couldn’t find one until last week when I discovered bubblewrap!! It’s very fast and I think it’s super cool, but I also ran into a bunch of fun problems that I wanted to write down for my future self.

  • Fix: Why Isn’t Linux Detecting My Wi-Fi Adapter?

    Historically, Linux has had a somewhat strained relationship with Wi-Fi cards. In recent years, the situation has changed considerably—and for the better—but it is still possible to boot into your new Linux installation and get that sinking feeling when you realize you’ve got no Wi-Fi. Installation routines are very good at identifying the various components of the target computer and configuring itself to work with that hardware. But problems can still happen. Troubleshooting hardware issues is difficult, especially if the only computer you have on hand is the broken device. Obviously, not everything presented here will be applicable to all cases. But hopefully, something below will either fix your issue or point you in the right direction.

  • Open-sourced tool speeds up Linux scripts via parallelization | Network World

    MIT has open-sourced pa.sh (also called pash), a tool that can dramatically speed up Linux scripts by using parallelization, saving time and without risk of introducing errors. The process of parallelization first examines a script for code that can be run separately and independently, so not all scripts can benefit from the tool. But when pa.sh does find portions that can run independently, it runs them in parallel on separate CPUs. It also uses other techniques to get the code to run faster. Below is a demonstration I ran on my home Fedora box, first running a script on its own and then again using pa.sh. Note that this script was provided with the pa.sh tool and lends itself to parallelization. It’s not nearly as demanding as scripts that might process gigabytes of data in a scientific or artificial-intelligence lab, so the results are not dramatic.

  • [GSoC 2022] ARM port and device tree support Phase 1

    The following will show how to compile haiku on osx and run it on qemu (my version: hrev56168)

  • Building in Kubernetes Using Tekton

    Continuous integration/continuous delivery (CI/CD) principles offer multiple benefits to software organizations, including faster time to market, higher-quality code, and simpler and faster fault isolation. Applications built using CI/CD pipeline best practices tend to see a huge increase in users over time, necessitating a migration from a large codebase and low-scalability monolithic architecture to a more manageable and efficient microservice architecture. Kubernetes is one of the most popular platforms for automating the management, deployment, and scaling processes of microservice applications. Because Kubernetes is complex, though, a framework can help developers and operations teams use the platform to follow CI/CD practices in building applications. This is where Tekton comes in.

  • Hetzner cloud and DragonFly

    When you are setting up a DragonFly machine on Hetzner, pay attention to this bug report for dhcp setup. The short answer is “use dhcpcd”.