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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 […]

The Raspberry Pi is a small, single-board computer that, despite being the size of a credit card, is capable of doing a lot of things. In reality, this little computer can be almost anything you want to be. You just need to open up your imagination. Raspberry Pi enthusiasts have made many different projects, from simple programs to complex automation projects and solutions like weather stations or even smart-home devices. This article will show how to turn your Raspberry Pi into a router with LTE mobile connectivity using the OpenWRT project. read more

Boffin who invented ANS encoding and made it public domain worries Microsoft will come rent-seeking Analysis In June, 2019, Microsoft applied for a US patent covering enhancements to a data encoding method known as rANS, one of several variants in the Asymmetric Numeral System (ANS) family that form the foundation of data compression schemes used by Apple, Facebook, Google, various other companies, and open source projects.…

Concurrency is an essential part of modern programming, as we have multiple cores and many tasks that need to cooperate. However, it's harder to understand concurrent programs when they are not running sequentially. It's not as easy for engineers to identify bugs and performance issues in these programs as it is in a single-thread, single-task program. read more

The Raspberry Pi 400 promises to be a boon to the homeschool market. In addition to providing an easy-to-assemble workstation that comes loaded with free software, the Pi 400 also serves as a surprisingly effective videoconferencing platform. I ordered a Pi 400 from CanaKit late last year and was eager to explore this capability. Easy setup After unboxing my Pi 400, which came in this lovely package, the setup was quick and easy. read more

Odoo (formerly known as OpenERP) is a self-hosted suite of over 10,000 open source applications suited for a variety of business needs including CRM, eCommerce, accounting, inventory, project management and point of sale.

Neousys’ rugged “Nuvo-2700DS” signage player runs on AMD’s Ryzen V1000 with up to 64GB DDR4, 4x DP, 2x GbE, 4x USB, 2x COM, 3x M.2, and dual mini-PCIe for optional Edge TPUs. Neousys has previously spun AMD’s Ryzen Embedded V1000 into an embedded PC (POC-500), an in-vehicle computer (POC-551VTC), and a real-time vision controller (Nuvis-534RT). […]

The European Linux giant will soon be spun out from EQT in an IPO later this year.

Nexus is a repository manages that provides a platform that protects your entire software development lifecycle. It allows you to collect, and manage your dependencies and makes it easier to distribute your software.

In mid-February, the Linux Foundation announced it had signed a collaboration agreement with the Defense Advanced Research Projects Agency (DARPA), enabling US Government suppliers to collaborate on a common open source platform that will enable the adoption of 5G wireless and edge technologies by the government. Governments face similar issues to enterprise end-users — if […]

Well, that was embarrassing. Linus Torvalds' first release candidate for the Linux kernel 5.12 included a show-stopping bug. After shutting down that release Torvalds has launched a new version of 5.12, which doesn't include the mistake.

Thanks to the Solarwinds security blunders, we're all aware now of how vital it is to protect our software supply chain from unauthorized changes. Now, the Linux Foundation and partners have created a new free cryptographic software signing to improve open-source program security.

The Linux Foundation has launched a “sigstore” project for improving software security via crypto software signing and transparency logs. The LF also announced new members for OpenSSF and launched a “DizmeID Foundation” for digital ID credentialing. The Linux Foundation announced the launch of a sigstore project for cryptographic software signing and announced new members for […]

The Open Source Initiative (OSI) is the community-driven nonprofit organization that maintains and evaluates compliance with the Open Source Definition. Last year, I wrote a piece for Opensource.com with a series of questions for candidates in the 2020 election for the OSI board of directors.

Aaeon’s rugged “Boxer-8253AI” edge AI system runs Linux on a Jetson Xavier NX and supplies HDMI in and out, 3x GbE (2x with PoE), 4x USB, SATA, mini-PCIe, M.2, SIM, and CAN. Aaeon has added to its growing subfamily of Boxer edge AI systems that run Nvidia’s Jetson Xavier NX. The $1,266 Boxer-8253AI is Aaeon’s […]

Advantech’s “RSB-3720” Pico-ITX SBC and “EPC-R3720” system run Linux on an i.MX8M Plus with up to 6GB LPDDR4, 2x GbE, 2x USB, HDMI, serial, M.2, mini-PCIe with SIM, and expandable I/O. Advantech has posted product pages for a Pico-ITX SBC and compact fanless industrial computer that appear to be its first products based on NXP’s […]

I've learned that video tutorials are a great way to teach my students, and open source tools have helped me take my video-production skills to the next level. This article will explain how to get started and add artfulness and creativity to your video tutorial projects.

'For many ... vendors, the BSD license is very important compared to the GPL'. It's not as well known as Linux, but FreeBSD has plenty of hardcore fans. In a wide-ranging chat covering licensing, architectures including RISC-V, and a development model that's free of a "dictator", The Reg spoke to members of the project about new release features and more.…