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It's all about developers Ahead of its release next month, the Fedora community has posted details of what is coming in Fedora 34, Red Hat's bleeding-edge Linux distro.…

Seeed and Mcuzone have launched compact Raspberry Pi CM4-based carrier boards for $45 and $109, respectively. The Seeed board features dual GbE ports and the Mcuzone entry has GbE and 10/100 ports plus 4G LTE. As promised last October, Seeed Studio has launched a carrier board for the Raspberry Pi Compute Module 4. Seeed’s Dual […]

When you write a program, your application may need to read from and write to files stored on the user's computer. This is common in situations when you want to load or store configuration options, you need to create log files, or your user wants to save work for later. Every language handles this task a little differently. This article demonstrates how to handle data files with Java. read more

Aaeon has launched a $169-and-up, community-backed “UP Squared Pro” SBC based on Apollo Lake. Compared to the UP Squared, it adds two more M.2 slots for SSDs, 5G, or Myriad X AI, plus wide-range power and TPM 2.0. In October, Aaeon teased an Intel Elkhart Lake based UP Squared Pro 2 board that has yet […]

Projects like building a satellite, developing a robot, or launching a new product are all expensive, involve different providers, and contain hard dependencies that must be tracked.

Tracking disk usage information is a day-to-day task of any system administrator. Linux has some built-in utilities that help you find the disk space of your system. In this post, we will show you how to check disk space on Linux using multiple ways.

WebAssembly is a bytecode format that virtually every browser can compile to its host system's machine code. Alongside JavaScript and WebGL, WebAssembly fulfills the demand for porting applications for platform-independent use in the web browser. As a compilation target for C++ and Rust, WebAssembly enables web browsers to execute code at near-native speed. When you talk about a WebAssembly, application, you must distinguish between three states: read more

RTOS is an open source operating system for embedded devices developed by RT-Thread. It provides a standardized, friendly foundation for developers to program a variety of devices and includes a large number of useful libraries and toolkits to make the process easier. read more

Fedora Workstation 34 is scheduled for release towards the end of April. Among the various changes that it will contain is the soon-to-be-released GNOME 40. This comes with a number of improvements and new features, most notably an updated Activities Overview design. Read on to hear the background behind those changes, and what to expect […]

In this tutorial we will install and configure Suricata, Zeek, the ELK stack, and some optional tools on an Ubuntu 20.10 (Groovy Gorilla) server along with the Elasticsearch Logstash Kibana (ELK) stack.

WebAssembly is a portable execution format that has drawn a lot of interest due to its ability to execute applications in the browser at near-native speed. By its nature, WebAssembly has some special properties and limitations. However, by combining it with other technologies, completely new possibilities arise, especially related to gaming in the browser. This article describes the concepts, possibilities, and limitations of running WebAssembly on Firefox.

You may not have used SCSI this decade, but the old storage interface software is still in Linux and security holes have been found, and fixed, within it.

If you want to learn input and output in C, start by looking at the stdio.h include file. As you might guess from the name, that file defines all the standard ("std") input and output ("io") functions. The first stdio.h function that most people learn is the printf function to print formatted output. Or the puts function to print a simple string. Those are great functions to print information to the user, but if you want to do more than that, you'll need to explore other functions. read more

If you work with technology, you are probably familiar with DevOps. Although DevOps is quite hard to describe in a few words, these Opensource.com articles can give you more information: read more

In this article, we will install the "CloudBees AWS Credentials" plugin and store the AWS IAM user's secret key and access key in Jenkins using this plugin. We will install the "AWS Steps Plugin" so that we could use "awsStep" to inject the credential we created.

Remember when the Raspberry Pi was just a really tiny hobbyist Linux computer? Well, to the surprise of no one, the Pi's power and scope has escalated quickly. Have you got a new Raspberry Pi or an old one lying around needing something to do? If so, we have plenty of new project ideas, ranging from home automation to cross-platform coding, and even some new hardware to check out.

Even if you haven't heard of a theremin, you're probably familiar with the eerie electronic sound it makes from watching TV shows and movies like the 1951 science fiction classic The Day the Earth Stood Still. Theremins have also appeared in popular music, although often in the form of a theremin variant.

Dictionaries are the Python programming language's way of implementing data structures. A Python dictionary consists of several key-value pairs; each pair maps the key to its associated value. For example, say you're a teacher who wants to match students' names to their grades. You could use a Python dictionary to map the keys (names) to their associated values (grades). If you need to find a specific student's grade on an exam, you can access it from your dictionary. This lookup shortcut should save you time over parsing an entire list to find the student's grade. read more

I have lived in 100-plus-year-old brick houses for most of my life. They look nice, they are comfortable, and usually, they are not too expensive. However, humidity is high in the winter in my climate, and mold is a recurring problem. A desktop thermometer that displays relative humidity is useful for measuring it, but it does not provide continuous monitoring. In comes the Raspberry Pi: It is small, inexpensive, and has many sensor options, including temperature and relative humidity. It can collect data around the clock, do some alerting, and forward data for analysis. read more

THine has launched a $59 “Cable Extension Kit for Raspberry Pi Camera” that extends the RPi cameras’ range from 15-20cm to up to 20 meters by using serializer-deserializer technology. Official Raspberry Pi cameras have improved over the years, starting with the 5-megapixel RPi camera v1 from 2013 and advancing to the 8MP RPi Camera v2 […]