Custom Christmas Light Controller Blocks Blinks
https://hackaday.com/2021/12/27/custom-christmas-light-controller-blocks-blinks/

Finding that his recently purchased LED Christmas lights defaulted to an annoying blinking pattern that took a ridiculous seven button presses to disable each time they were powered up, [Matthew …read more (https://hackaday.com/2021/12/27/custom-christmas-light-controller-blocks-blinks/)

Turing Ring is Compact
https://hackaday.com/2021/12/28/turing-ring-is-compact/

One of the problems with a classic Turing machine is the tape must be infinitely long. [Mark’s] Turing Ring still doesn’t have an infinite tape, but it does make it …read more (https://hackaday.com/2021/12/28/turing-ring-is-compact/)

Laser Doping His Way to Homemade Silicon Chips
https://hackaday.com/2021/12/28/laser-doping-his-way-to-homemade-silicon-chips/

It’s a pity that more electronics enthusiasts haven’t taken the hobby to its ultimate level: making your own semiconductors. There are plenty of good reasons for that: chief among them …read more (https://hackaday.com/2021/12/28/laser-doping-his-way-to-homemade-silicon-chips/)

Quantum Atomic Interferometer For Precision Motion Sensing
https://hackaday.com/2021/12/28/quantum-atomic-interferometer-for-precision-motion-sensing/

The current state of the art of embedded motion sensing is based around micro-electromechanical systems (MEMS) devices. These miracles of microfabrication use tiny silicon structures, configured to detect acceleration and …read more (https://hackaday.com/2021/12/28/quantum-atomic-interferometer-for-precision-motion-sensing/)

The Pinouts Book is Here, and It’s Just What You Need
https://hackaday.com/2021/12/28/the-pinouts-book-is-here-and-its-just-what-you-need/

Updates from the enigmatic [NODE] are unfortunately few and far between these days. In fact his latest post is only the second time we’ve heard from the hacker in 2021. …read more (https://hackaday.com/2021/12/28/the-pinouts-book-is-here-and-its-just-what-you-need/)

Linux Fu: Don’t Share Well With Others
https://hackaday.com/2021/12/28/linux-fu-dont-share-well-with-others/

In kindergarten, you learn that you should share. But for computer security, sharing is often a bad thing. The Linux kernel introduced the concept of namespaces starting with version 2.6.24. …read more (https://hackaday.com/2021/12/28/linux-fu-dont-share-well-with-others/)

DIY Infrared Calculator Printer
https://hackaday.com/2021/12/28/diy-infrared-calculator-printer/