Smart meters form mesh networks among themselves and transmit your usage data all around. Some of them even allow the power company to turn off your power remotely, through the …read more (https://hackaday.com/2022/01/13/remoticon-2021-hash-salehi-outsmarts-his-smart-meter/)

Exploring Tesla Model S High Voltage Cabling
https://hackaday.com/2022/01/13/exploring-tesla-model-s-high-voltage-cabling/

Screen capture from the linked YouTube video
" data-image-caption="" data-medium-file="https://hackaday.com/wp-content/uploads/2022/01/hv-feature.png?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2022/01/hv-feature.png?w=800">When he’s not busy with his day job as professor of computer and automotive engineering at Weber State University, [John Kelly] is a prolific producer of educational videos. We found …read more (https://hackaday.com/2022/01/13/exploring-tesla-model-s-high-voltage-cabling/)

Ride-on Tracked Vehicle Is A Stout Metal Build
https://hackaday.com/2022/01/13/ride-on-tracked-vehicle-is-a-stout-metal-build/

When we think of tracked vehicles, we normally think of tanks, or perhaps heavy construction machinery. Meanwhile the average member of the public is left out of the fun. [Bob] …read more (https://hackaday.com/2022/01/13/ride-on-tracked-vehicle-is-a-stout-metal-build/)

Soviet-Era Auto Dialler Uses Magnetic Rope Core Memory
https://hackaday.com/2022/01/13/soviet-era-auto-dialler-uses-magnetic-rope-core-memory/

We’ve seen a few interesting magnetic core memories on these fine pages over the years, but we don’t recall seeing too many user programmable magnetic core memory devices. This interesting …read more (https://hackaday.com/2022/01/13/soviet-era-auto-dialler-uses-magnetic-rope-core-memory/)

Microwave Sampler is Like Time Domain Mixer
https://hackaday.com/2022/01/13/microwave-sampler-is-like-time-domain-mixer/

[Gregory] is building some microwave gear and wanted to convert a 3.3 GHz signal to a 12 MHz intermediate frequency. You might think of using a mixer, but you’d need …read more (https://hackaday.com/2022/01/13/microwave-sampler-is-like-time-domain-mixer/)

Pico Does PID
https://hackaday.com/2022/01/13/pico-does-pid/

If you wanted to, say, control a temperature you might think you could just turn on a heater until you reach the desired temperature and then turn the heater off. …read more (https://hackaday.com/2022/01/13/pico-does-pid/)

This DIY Microscope Design is All Wet
https://hackaday.com/2022/01/14/this-diy-microscope-design-is-all-wet/

[Robert Murray-Smith] wanted to recreate how some ancient microscopes worked: with a drop of water as a lens. The idea is that the meniscus of a drop of water will …read more (https://hackaday.com/2022/01/14/this-diy-microscope-design-is-all-wet/)