Voltage Measurement HAT for Raspberry Pi offers 16-bit analog inputs

MCC has launched the MCC 128 voltage measurement DAQ HAT for Raspberry Pi for data acquisition and data logging systems. It includes 8 analog inputs with 16-bit resolution for a range of -10V to +10 V at the data rate of 100 kS/s. This data rate can be increased by stacking up to 8 HATs for 64 channels of data which can produce a faster data rate up to 320 kS/s. The MCC 128 DAQ HAT is compatible with all Raspberry Pi models with the 40-pin GPIO header, excluding the original Pi 1 A or B with the 26-pin header. It is recommended to use the SPI interface for connecting LCD displays using the GPIO header. The configuration parameters of the board are stored in the EEPROM to allow automatic set up of GPIO pins to Raspberry Pi after the connection of the device.

VPN Providers with Custom Clients for Linux

Virtual Private Networking providers and company are more than you can shake a stick at these days. While there's always installable client software for Windows, Android and usually MacOS and whatever the mobile version is called not all are offering desktop clients for Linux distributions. Even if they do it's usually non-GUI, you know, with the excuse that Linux nerds love and want the power of the command line, with stripped-down functionality, or even a browser extension only which might work on a Chromebook but not on any other OS if you actually want to channel your entire traffic. And no, a proxy is not a replacement for a proper VPN. Another constraint is the various packaging formats Linux and GNU/Linux distributions are using. Most providers only offer packages for Debian and Ubuntu-like distributions. RPMs are typically Fedora and/or CentOS but do not work on SUSE. On other distributions like Slackware and Arch you're basically on your own. You can hope that someone has provided a build on sbopkg for Slackware or in the AUR for the Arch base or that it can be transformed with the alien packaging tool but these are not official packages. Then we have the issue of different init systems in use all over the Linux install base. When exploring Artix Linux I discovered that custom desktop client software is written to work with distributions that are using systemd to handle services and networking. Wanting to use them with OpenRC or Runit presents a bit of a challenge. It can be done but you got to know your init system's run levels or ask a distro developer to package it for you. Thankfully I since discovered that the software of at least two companies I'm perusing supports SysVinit. Their packages worked flawlessly on Devuan 3.0 so all is not lost if you're not running systemd but still want to use your providers client instead of the Networkmanager OpenVPN plugin. Even more so since NM does not seem to work without systemd, haha. They also play nicely with Wicd, no conflicts there. They're not integrated but they don't integrate with NM either.

After Parler, Google Targets Blockchain-based ‘Free Speech’ Social Network Minds

Google Play Store sent a "24 hour warning" to Minds and they removed major functionality from the app. Minds is also working on a contingency plan to avoid meeting the same fate as Parler.

today's leftovers

• How one hacker's push to secure the internet became a crucial part of Mac, Linux, and Windows operating systems [Was: "How Jason A. Donenfeld created secure VPN WireGuard, included in Linux"

• Fedora program update: 2021-02

  Here’s your report of what has happened in Fedora this week. Self-Contained Change proposals for Fedora 34 are due by Tuesday 19 January. The mass rebuild begins on 20 January. Not next week, but normally I have weekly office hours in #fedora-meeting-1. Drop by if you have any questions or comments about the schedule, Changes, elections, or anything else.

• App Spotlight: Dictionary

  Among the easily installable and ad-free apps within the PureOS store is Dictionary. This is a simple tool that lets you search through numerous online or local dictionaries and translation sources.

• Comet Lake-S appears on COM Express

  Portwell’s Linux-ready “PCOM-B655VGL” Basic Type 6 module features Intel’s up to 10-core, 10th Gen Comet Lake-S plus up to 32GB DDR4, 3x DDI, 4x SATA III, 4x USB 3.2 Gen2, and PCIe x16 and 8x PCIe x8 Gen3.

• RetroPie booze barrel

• 20 years of Drupal: Founder Dries Buytaert on API first, the end of breaking compatibility, and JavaScript bloat

  Content management system Drupal is 20 years old, prompting its founder to talk to about its evolving role, why it shifted from a policy of breaking compatibility with each release, and concerns about JavaScript bloat causing issues for those with poor connectivity. "When I started Drupal 20 years ago I built it for myself, for me with my friends," Buytaert told us. That was at the University of Antwerp, Belgium, in 2000. He wrote a small message board. When he graduated he put it on the web, intending to call it dorp, which is Dutch for village. He mistyped it as drop, creating drop.org. Drupal is derived from the English pronunciation of druppel, Dutch for drop. Buytaert is now project lead for Drupal and CTO of Acquia, a cloud platform for marketing sites.

• What Can We Learn From SQL’s 50 Year Reign? A Story of 2 Turing Awards

  Many of the programming languages we use today were not introduced until the 90s (Java was introduced in 1996). However, there is one programming language that is still as popular today as it was when it was introduced nearly 50 years ago: SQL.

  This article will discuss the events that led to the introduction of relational databases, why SQL grew in popularity, and what we can learn from its success.

• ScyllaDB NoSQL database to improve with Project Circe

  The open source SycllaDB NoSQL database continues to gain new features and users as it ramps up its plans for 2021. At the Scylla Summit 2021 virtual event which ran from Jan. 12-14, ScyllaDB CEO Dor Laor shared new features and the roadmap for the NoSQL database's future. A key part of ScyllaDB's roadmap is Project Circe, a yearlong initiative that aims to bring new performance and consistency to the database. The Summit was also highlighted by multiple users that outlined their ScyllaDB deployments, including Ticketmaster, Expedia Group, Zillow and GE Healthcare.

• "Studio" Tour Of An Australian Linux Zoomer

  Ever wondered what my "studio" actually looks like outside of the normal shot, well today you can find out and I use the term studio very loosly, this is my bedroom with some lights set up but none the less it's a make shift studio and it's what I use to make 15+ videos a week.

• DistroToot Is Now Accepting New Members

  DistroToot is my own personal Mastodon instance. Mastodon is a decentralized, federated micro-blogging platform. Essentially, it is a free and open source Twitter. People have asked me if I would open up DistroToot to accept other members (not just myself).