Making a Do-It-Yourself Sand Battery
https://hackaday.com/2022/11/21/making-a-do-it-yourself-sand-battery/

Storing energy can be done in many ways, with the chemical storage method of a battery being one of the most common. Another option is a thermal battery, which basically …read more (https://hackaday.com/2022/11/21/making-a-do-it-yourself-sand-battery/)

How to Repair? The Death of Schematics
https://hackaday.com/2022/11/21/how-to-repair-the-death-of-schematics/

There was a time when, if you were handy with a soldering iron, you could pretty easily open up a radio or TV repair business. You might not get rich, …read more (https://hackaday.com/2022/11/21/how-to-repair-the-death-of-schematics/)

Making SVD Files Searchable With Svd2db
https://hackaday.com/2022/11/21/making-svd-files-searchable-with-svd2db/

Everyone who writes bare-metal code for microcontrollers probably know the joys of looking up the details of specific registers in the reference manual, including their absolute address. Although the search …read more (https://hackaday.com/2022/11/21/making-svd-files-searchable-with-svd2db/)

Reverse Engineering “The Seven Words (and More) You Can’t Say on TV”
https://hackaday.com/2022/11/21/reverse-engineering-the-seven-words-and-more-you-cant-say-on-tv/

For as visionary as he was, [George Carlin] vastly underestimated the situation with his classic “Seven Words You Can’t Say on TV” bit. At least judging by [Ben Eater]’s reverse …read more (https://hackaday.com/2022/11/21/reverse-engineering-the-seven-words-and-more-you-cant-say-on-tv/)

Portable ESP32 RGB Lasershow Has All the Trimmings
https://hackaday.com/2022/11/21/portable-esp32-rgb-lasershow-has-all-the-trimmings/

Perhaps there was a time when fancy laser effects were beyond those without the largest of bank accounts, but today they can be created surprisingly easily. [Corebb] shows us how …read more (https://hackaday.com/2022/11/21/portable-esp32-rgb-lasershow-has-all-the-trimmings/)

Better Air Quality Sensing with CO2
https://hackaday.com/2022/11/21/better-air-quality-sensing-with-co2/

Measuring air quality, as anyone who has tried to tackle this problem can attest, is not as straightforward as it might seem. Even once the nebulous term “quality” is defined, …read more (https://hackaday.com/2022/11/21/better-air-quality-sensing-with-co2/)

A Game Boy Advance – Downgraded!
https://hackaday.com/2022/11/21/a-game-boy-advance-downgraded/

We feature a large number of game console mods here, because enhancing the experience of using a classic machine often involves some really clever work. But here’s one that’s a …read more (https://hackaday.com/2022/11/21/a-game-boy-advance-downgraded/)

Anime Inspired Holographic Virtual Assistant
https://hackaday.com/2022/11/22/anime-inspired-holographic-virtual-assistant/