Language Selection

English French German Italian Portuguese Spanish

Raspberry Pi powered juggling performance

Filed under
Linux

Flashing pins are spinning tens of feet into the air on a pitch dark stage. It's a juggling performance. All of the pins are perfectly synchronized to flash different colors in time to the music. It's part of the magic of theater and a special night out with friends to enjoy a distraction from daily life. Part of the magic—and why it's called magic—is that the audience doesn't know how these secrets are made backstage.

Read more

More in Tux Machines

Matrix Voice RPi add-on with 7-mic array relaunches

Matrix Labs has publicly relaunched its FPGA-driven “Matrix Voice” voice input add-on board for the Raspberry Pi and Up board for $55, or $65 for a standalone model equipped with an ESP32. Matrix Labs has shipped its “mostly open source” Matrix Voice Raspberry Pi add-on board for Linux-compatible voice recognition and voice assistant technologies such as Alexa and Google Assistant. The circular board launched in February on Indiegogo, and earned over $130,000 in pledges. The Matrix Voice is now available from the Matrix Labs website for only $10 over the original $45 early bird price. Read more

Programming: Donald Knuth’s 80th Birthday and More

  • Octogenarianhood
    2018 began for me with an absolutely incredible 80th birthday celebration called Knuth80, held in the delightful city of Piteå in northern Sweden. It's impossible for me to thank adequately all of the wonderful people who contributed their time to making this event such a stunning success, certainly one of the greatest highlights of my life. Many of the happenings were also captured digitally in state-of-the-art audio and video, so that others will be able to share some of this joy. I'll link to that data when it becomes available.
  • Celebrating Donald Knuth’s 80th Birthday

    Don suggests that some of the participants who have a little free time might like to look at a few conjectures about set partitions and generating functions that he has put online at http://www-cs-faculty.stanford.edu/~knuth/caspagf.txt

  • Tidyverse and data.table, sitting side by side ... (Part 1)
  • Rcpp 0.12.15: Numerous tweaks and enhancements
    The fifteenth release in the 0.12.* series of Rcpp landed on CRAN today after just a few days of gestation in incoming/. This release follows the 0.12.0 release from July 2016, the 0.12.1 release in September 2016, the 0.12.2 release in November 2016, the 0.12.3 release in January 2017, the 0.12.4 release in March 2016, the 0.12.5 release in May 2016, the 0.12.6 release in July 2016, the 0.12.7 release in September 2016, the 0.12.8 release in November 2016, the 0.12.9 release in January 2017, the 0.12.10.release in March 2017, the 0.12.11.release in May 2017, the 0.12.12 release in July 2017, the 0.12.13.release in late September 2017, and the 0.12.14.release in November 2017 making it the nineteenth release at the steady and predictable bi-montly release frequency. Rcpp has become the most popular way of enhancing GNU R with C or C++ code. As of today, 1288 packages on CRAN depend on Rcpp for making analytical code go faster and further, along with another 91 in BioConductor.

Android Leftovers

Security: Updates and Botched Updates

  • Security updates for Monday
  • RedHat reverts patches to mitigate Spectre Variant 2
    RedHat previously released patches to mitigate this issue, however, in a rather controversial move, has decided to roll back these changes after complaints about systems failing to boot with the new patches, and instead is now recommending that, "subscribers contact their CPU OEM vendor to download the latest microcode/firmware for their processor."
  • Red Hat dumps Spectre CPU patches that brick servers
    Enterprise Linux vendor Red Hat will no longer distribute microcode patches to mitigate against the Spectre processor flaw after bugs in the patches stopped user systems from booting up. The company advised of its decision late last week after being alerted by its customers to problems with the patches. Red Hat is now reverting the microcode_ctl and linux-firmware packages it includes with its enterprise Linux distribution to older versions that are known to be stable. Microcode, also known as millicode and firmware, is software distributed by vendors to correct specific errors for processors.