Showing headlines posted by bob

Elephant Robotics’ $700 to $1,200 “MyAGV” mobile robot runs on a Raspberry Pi 4B with a 360° lidar, 5MP cam, a 220 rpm/min motor, 4x omnidirectional wheels, and an optional 6-axis MyCobot arm. In May, Elephant Robotics launched a $699, six-axis manipulation bot called the MyCobot Pi, which is built around a Raspberry Pi 4 […]

When I recently read Alan Formy-Duval's article Manage your Raspberry Pi with Cockpit, I thought it would be a good idea to have an image with Cockpit already preinstalled. Luckily there are at least two ways to accomplish this task:  read more

Maxima is an open source computer algebra system (CAS) with powerful symbolic, numerical, and graphical capabilities. You can perform matrix operations, differentiation, integration, solve ordinary differential equations as well as plot functions and data in two and three dimensions. As such, it is helpful for anyone interested in science and math. This article goes through […]

Boardcon’s “EM3566” SBC runs Linux on Rockchip’s RK3566 via a “CM3566” module with up to 8GB RAM and 32GB eMMC. Features include WiFi/BT, GbE, HDMI, MIPI-DSI and -CSI, 6x USB, SATA, M.2 for NVMe, and mini-PCIe with SIM. Boardcon has announced its first single board computer based on the Rockchip RK3566, following earlier Rockchip-based models […]

No matter how much storage space you have, there's always the possibility for it to fill up. On most personal devices, drives get filled up with photos and videos and music, but on servers, it's not unusual for space to diminish due to data in user accounts and log files. Whether you're in charge of managing a multi-user system or just your own laptop, you can check in on disk usage with the du command. By default, du provides the amount of disk space used in your current directory, as well as the size of each subdirectory: read more

v11 set for mid-August release The Debian Project has set a release date of 14 August for Debian 11, also known as Bullseye.…

Pete Townshend, legendary guitar player for British rock band The Who, is well-known for playing suspended chords. Suspended chords add musical tension to a song. For those piano players reading this who (like me) love to play in the key of C, simply play a C major chord (the notes C, E, and G) and replace the E note with either an F or a D. You are now on your way to becoming a British rock star!1 read more

An operating system's kernel is one of the most elusive pieces of software out there. It's always there running in the background from the time your system gets turned on. Every user achieves their computing work with the help of the kernel, yet they never interact with it directly. The interaction with the kernel occurs by making system calls or having those calls made on behalf of the user by various libraries or applications that they use daily. read more

Zidoo’s “M6” mini-PC runs Linux or Android on an RK3566 with up to 8GB RAM, 128GB eMMC, 3x USB, HDMI, GbE, 802.11ax, and mini-PCIe and SIM slots. Chinese media player and set-top manufacturer Zidoo has unveiled a mini-PC built around Rockchip’s 1.8GHz, quad-core, Cortex-A55 RK3566. The Zidoo M6 runs Android 11, Ubuntu 18.04, buildroot and […]

The MERN Stack is made from four components: MongoDB, ExpressJS, ReactJS, and NodeJS. It provides a bundle of JavaScript technologies used for building dynamic JS websites. In this guide, we will show you how to install the MERN stack on Ubuntu 20.04.

Geniatech’s $179-and-up “APC820” media player mini-PC runs Android or Linux on Rockchip’s RK3399 with up to 4GB RAM and 128GB eMMC plus GbE, HDMI in and out, 4x USB, and optional TV tuners, WiFi/BT, LTE, and other wireless links. Geniatech has launched a media-focused, wireless ready mini-PC based on the Rockchip RK3399 aimed at “commercial […]

New desktop Linux distros arrive a couple of times a week, but Linux Mint retains its hold on my desktop because it works well, and with every release, it only gets better.

One size does not fit all Sponsored Remember when the only database in town was relational? Things have changed in 20 years. Today, the venerable old relational database management system (RDBMS) still presides, but the market is also filled with new database types designed for different kinds of jobs.…

The cron system is a method to automatically run commands on a schedule. A scheduled job is called a cronjob, and it’s created in a file called a crontab. It’s the easiest and oldest way for a computer user to automate their computer.

WildFly is a production-ready, cross-platform, flexible, lightweight, managed application runtime that provides all the necessary features to run a Java web application. It is also a Java EE 8 certified application server almost exclusively in Java, and it implements the Jakarta EE, which was the Java Platform, Enterprise Edition (Java EE) specifications. Therefore you can run it on any operating system.

Linux distributions are great to use and they have some tricks under their sleeves which users may not be aware of. Let’s have a look at some command line utilities which really come in handy when you’re the guy that likes to stick with the terminal rather than using a GUI.  We all know that […]

Thundercomm’s “TurboX C865 SOM” and dev kit and eInfochips’ “EIC-QCS8250-210” Mini-ITX run Android 10 on Qualcomm’s QCS8250, an IoT variant of the Snapdragon 865. We also look at the new QCS4290 and Wi-Fi 6E ready QCS6490 SoCs. Last week, we reported on Thundercomm’s TurboX CM2290 and C2290 SOMs, which run Android or Linux on Qualcomm’s […]

A screen reader is a vital tool that helps individuals who are blind or low-vision read digital text. Unfortunately, not all file formats receive the same level of support from screen readers. For example, while PDF files have accessibility features that you can use, they are often not the preferred file format for screen reader users. Between line breaks, multiple columns, symbols, and images, screen readers can have trouble reading PDFs in a cohesive way to their users. read more

Programming blunder is the second such snafu this month. Bug of the week Google has fixed a bug in Chrome OS version 91.0.4472.165 that surfaced on Monday and prevented some users from being able to login to their systems.…

The Linux Foundation has posted a schedule for its Open Source Summit + Embedded Linux Conference, to be held (live this time) on Sep. 27 to Oct. 1 in Seattle. RISC-V is a big topic, and there is a keynote on the Martian Perseverance rover and Ingenuity helicopter. The Open Source Summit + Embedded Linux […]