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Have you ever been in a situation where you realize that you didn't insert debug print at a few points in your code, so now you won't know if your CPU hits a particular line of code for execution until you recompile the code with debug statements? Don't worry, there's an easier solution. Basically, you need to insert dynamic probe points at different locations of your source code assembly instructions. read more

MASS unveiled an “RPI-07” touch-panel computer based on the Raspberry Pi 3 with a 7-inch, multi-touch display, VESA 75 mounting, and optional I/O modules. The Raspberry Pi 3 is increasingly being adopted for various industrial computers, and can now be found in an industrial touch-panel.

Lincoln Loop is an open organization in many ways. We're distributed across 7 time zones. We have no central headquarters. All members of our core team can see all our financials (literally every penny earned or spent) and choose their own salaries. We have an open vacation policy and let people set their own work schedules. read more

Users slam attempt to infuse app with social media magic. Microsoft last month declared that it had rebuilt its Skype app "from the ground up." Those who use the app have been busy tearing it down.

Aaeon’s rugged, Linux ready “Boxer-6839” PC controls vision systems with 7th Gen Intel CPUs, PCIe, PCI, mini-PCIe, GbE, USB 3.0, and 6x RS-232/422/485. Like last year’s Boxer-6639, Aaeon’s Boxer-6839 industrial computer supports 6th Generation “Skylake” Core CPUs, and it can also use the latest 7th Generation Core “Kaby Lake” processors. The 264.2 x 156.2 x […]

Linus Torvalds released Linux kernel 4.12 on Sunday, July 2 and remarked how it was "one of the bigger releases historically." Indeed, just shy of 12,000 commits, only 4.9 was significantly larger, and that was because Greg Kroah-Hartman declared it an LTS release.

Node-RED is a programming tool that lets you quickly connect hardware devices using a browser-based editor. It comes with a wide range of nodes that can be used to build flows in a drag-and-drop manner, significantly reducing your development time. Node-RED is installed with Raspian Jesse for Raspberry Pi, and there is also an option to download Node-RED separately. read more

Pine64’s Raspberry Pi-style “Rock64” SBC offers a quad -A53 RK3328 SoC with GbE and USB 3.0 ports for $25, $35, or $45 with 1GB, 2GB, or 4GB of RAM. Yet another community-backed SBC with the same size, layout, expansion connector, and basic specs of a Raspberry Pi has reached market. While most of the pseudo […]

Open source has been amazingly good at solving two sets of issues: 1) infrastructure and 2) developer tools. This is because those developers and users are basically the same people—the developer is an "insider" to the problem, understands it well, and is motivated to solve it. read more

The release of Fedora 26 is just around the corner, and the choices for wallpapers in Fedora Workstation are pretty amazing. In addition to the Fedora 26 Default Wallpaper and the GNOME 3.24 Adwaita background, Fedora Workstation now includes a... Continue Reading →

Apache Cassandra is a free and open source distributed NoSQL database management system. It is used to store large data in decentralized highly available clusters. In this tutorial, we will be installing Apache Cassandra on CentOS 7 server.

The point-and-click graphical user interface available on Linux is a wonderful thing... but if your favorite interactive development environment consists of the terminal window, Bash, Vim, and your favorite language compiler, then, like me, you use the terminal a lot. read more

People's phones and all of the various sensors that may be built in to them is a source of scientific data logging that almost everyone carries around. Although the selection of sensors varies from phone to phone, they almost all have a camera. In this article, I take a look at a piece of software called Tracker that can be used to analyze videos you take of experiments.

Linux users need to check out their distributions to see if a nasty bug in libgcrypt20 has been patched. The patch, which has landed in Debian and Ubuntu, is to address a side-channel attack published last week.

For David Price, the first steps down the path to embracing openness started with a diagnosis of atrial fibrillation. That diagnosis was a shock, and like many people with medical conditions in the digital age, Price began frequenting online forums for people with his affliction. read more

It feels great to say that KDE has active contributors across the globe. Two KDE contributors recently presented talks in Asia about their work and encouraged new contributors to join us and get started.

By any measure, the rise of open source software as an alternative to the old, proprietary ways has been remarkable. Today, there are tens of millions of libraries hosted at GitHub alone, and the number of major projects is growing rapidly. read more

I started brewing my own beer more than 10 years ago. Like most homebrewers, I started in my kitchen making extract-based brews. This required the least equipment and still resulted in really tasty beer. Eventually I stepped up to all-grain brewing using a big cooler for my mash tun. For several years I was brewing 5 gallons at a time, but brewing 10 gallons takes the same amount of time and effort (and only requires slightly larger equipment), so a few years ago I stepped it up. read more

Gibbon is a free and open source web-based Educational Management system that can be used to solve teachers and students daily problems. Gibbon is very flexible, extensible and themable application with many features, including online application forms, messenger, planner, external assessment, and much more. In this tutorial, we will go through step by step installation of Gibbon on Ubuntu 16.04 server.

Off-the-shelf, consumer home automation has fallen into a pretty standard pattern. You have a smart device (like a lightbulb or door lock) that talks to some kind of hub that you put on your network. It communicates with a cloud service owned by the device vendor, and you interface with that service via a mobile app. This provides an easy out-of-the-box experience and lets the vendor iterate on its service both in the cloud and on mobile; however, this model has a lot of weaknesses and is extremely limiting with what it can do. read more