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Programming Leftovers

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Development
  • QuatBot released – Matrix Meeting Manager

    QuatBot is a Bot for use in text-chat. So there are no pretty screenshots of it in action, or what the UI looks like: pick your favorite Matrix client (I switch between nheko and neochat depending on which has a more recent release fixing bugs that annoy me).

  • AIfES releases exciting new version of TinyML library for Arduino

    Last July AIfES (Artificial Intelligence for Embedded Systems) from the Fraunhofer Institute for Microelectronic Circuits and Systems (IMS) was launched. This open source solution makes it possible to run, and even train, artificial neural networks (ANN) on almost any hardware, including the Arduino UNO.

    The team hasn’t stopped work on this exciting machine learning platform, and an update just landed that you’ll definitely want to check out.

  • Drew DeVault's blog: Status update, January 2022

    I also implemented an efficient path manipulation module for the standard library (something I would really have liked to have in C!), and progress continues on date/time support. We also have a new MIME module (just for Media Types, not all of MIME) and I expect a patch implementing net::uri to arrive in my inbox soon. I also finished up cmsg support (for sendmsg and recvmsg), which is necessary for the Wayland implementation I’m working on (and was a major pain in the ass). I spent some time working with another collaborator, who is developing a RISC-V kernel in our language, implementing a serial driver for the SiFive UART, plus improving the device tree loader and UEFI support.

  • Project audit experiences | Will's Blog

    Back in January 2020, I wrote How to pick up a project with an audit. I received some comments about it over the last couple of years, but I don't think I really did anything with them. Then Sumana sent an email asking whether I'd blogged about my experiences auditing projects and estimating how long it takes and things like that.

  • Hack The Web Without A Browser | Hackaday

    It is a classic problem. You want data for use in your program but it is on a webpage. Some websites have an API, of course, but usually, you are on your own. You can load the whole page via HTTP and parse it. Or you can use some tools to “scrape” the site. One interesting way to do this is woob — web outside of browsers.

  • The new Qt Quick Compiler technology

    It's been a while since we've heard about what goes on inside and around Qt QML, our engine to interpret the QML language (not counting the recent announcement, that is). The last post strictly about this topic was what Lars wrote in 2018.

    We've been so silent because we've been prototyping new ways to make your QML run faster, and some of them turned out to be dead ends. There is no tracing JIT after all. This isn't cool, so we were somewhat silent. But now there is something to say. And, mind you, it's not cool either. It's hot. But let me take a step back first.

  • Bash scripting(III)

    This is the third article of a series focused in Gnu Bash scripting. On the first article we’ve just created a simple script with commands, one after another. We also saw some variables use.
    The second article covered some bash control structures. This one will cover redirections, pipes, and command substitution.

  • TWC 147: Prime without Left, and Pent without Quad
  • 2022.03 RakuCon How? – Rakudo Weekly News

    Andrew Shitov is asking for the community’s opinion on whether or not to have an in-person Raku Conference in Riga in 2022 in The Raku Conference Update. Cancelling an in-person event now, means no financial risk, which seems safest.

More in Tux Machines

Arduino Projects: Sun and Power Trackers

  • This sun tracker uses an Arduino to increase solar panel efficiency | Arduino Blog

    With the rapid pace of solar panel installations over the course of the previous decade, there has been an ongoing challenge of trying to improve their efficiency. Apart from the typical silicon crystal photovoltaic cells, there are also more efficient/expensive cells known as concentration photovoltaics (CPV), which rely on a set of mirrors to focus sunlight into a small multijunction cell. Although this technology reduces the size and material requirements, it also requires precise sun tracking for peak performance. Ruediger Loechenhoff has been able to create a far cheaper solar tracker controller, which relies on an Arduino Uno to drive a set of two motors that position the panel. To achieve this, the Uno was connected to a 9-axis MPU-9250 compass module for internal positioning, a DS3231 real-time clock for accurate timing, and a DIY shading beam sunlight sensor to detect optimal angles. Operating the tracker is also quite simple since the firmware only requires an occasional calibration step after a set number of days.

  • This Arduino device can anticipate power outages with tinyML | Arduino Blog

    Our reliance on electronic devices and appliances has never been higher, so when the power goes out, it can quickly become an unpleasant and inconvenient situation, especially for those who are unable to prepare in time. To help combat this problem, Roni Bandini has devised a device he calls “EdenOff,” which is placed inside an electrical outlet and utilizes machine learning at the edge to intelligently predict when an outage might occur. Developed with the use of Edge Impulse, Bandini began by creating a realistic dataset that consisted of three columns that pertain to different aspects of an outlet: its voltage, the ambient temperature, and how long the service has been working correctly. After training a model based on one dataset for regular service and the other for a failure, his model achieved an excellent F-1 score of .96, indicating that the model can forecast when an outage might take place with a high degree of accuracy.

LibreOffice and More

  • LibreOffice at the Univention Summit 2022

    After two years of pandemic restrictions, more and more in-person events are now taking place. Members of the LibreOffice community attended the recent Univention Summit 2022 in Bremen, northern Germany. They had a stand with LibreOffice merchandise, talked to visitors and answered questions.

  • May 2022, Month of LibreOffice Awards

    In May 2022, LibreOffice has received two Awards: SourceForge’s Open Source Project of the Month, and Software Informer’s Editor’s Pick.

  • Do While – Loop Example in Python | Mark Ai Code

    Loops are an important and widely utilized element in all current programming languages. A loop is the finest solution for automating a certain repeated operation or preventing yourself from writing repetitive code in your projects. Loops are sequences of instructions that are executed repeatedly until a condition is fulfilled. Let’s take a closer look at how Python loops function.

Proprietary Software and Microsoft Proxies

  • Patch now: Zoom chat messages can infect PCs, Macs, phones with malware

    Zoom has fixed a security flaw in its video-conferencing software that a miscreant could exploit with chat messages to potentially execute malicious code on a victim's device. The bug, tracked as CVE-2022-22787, received a CVSS severity score of 5.9 out of 10, making it a medium-severity vulnerability. It affects Zoom Client for Meetings running on Android, iOS, Linux, macOS and Windows systems before version 5.10.0, and users should download the latest version of the software to protect against this arbitrary remote-code-execution vulnerability. The upshot is that someone who can send you chat messages could cause your vulnerable Zoom client app to install malicious code, such as malware and spyware, from an arbitrary server. Exploiting this is a bit involved, so crooks may not jump on it, but you should still update your app.

  • SAP attracts further criticism for Russia presence, despite promise to leave

    A Ukrainian minister has accused software giant SAP of continuing to operate in Russia despite the German vendor previously vowing to withdraw from the aggressor nation. In the months following Russia's invasion of Ukraine, SAP attracted criticism as it continued to support installations of its software in Russia and cloud services used by Russian businesses, including state-owned bank Sberbank.

  • OpenLogic by Perforce: Why we support OSI [Ed: OSI boasts about being controlled by Microsofters]
  • OpenLogic by Perforce Announces Sponsorship of Rocky Enterprise Software Foundation [Ed: Microsoft proxy lays its hands on Rocky after it ran away from Microsoft]

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