Inspired by many months of hours-long load shedding in South Africa, [JGJMatt] decided to make a portable speaker that can play tunes for hours on a single charge and even …read more (https://hackaday.com/2023/12/15/building-a-solar-powered-supercapacitor-based-speaker/)

This Week in Security: Traingate, DNS, and JMP Slides
https://hackaday.com/2023/12/15/this-week-in-security-traingate-dns-and-jmp-slides/

Remember Dieselgate, the scandal where certain diesel vehicles would detect an emissions test, and run cleaner for it, “cheating” the test? Traingate may just put that one into perspective. We’ll …read more (https://hackaday.com/2023/12/15/this-week-in-security-traingate-dns-and-jmp-slides/)

Mods Turn Junk UPS into a Long-Endurance Beast
https://hackaday.com/2023/12/15/mods-turn-junk-ups-into-a-long-endurance-beast/

If you’ve got a so-called uninterruptible power supply (UPS) on your system, you’re probably painfully aware that the “uninterruptible” part has some pretty serious limits. Most consumer units are designed …read more (https://hackaday.com/2023/12/15/mods-turn-junk-ups-into-a-long-endurance-beast/)

Hackaday Podcast Episode 248: Cthulhu Clock Radio Transharmonium, Thunderscan, and How to Fill Up in Space
https://hackaday.com/2023/12/15/hackaday-podcast-episode-248-cthulhu-clock-radio-transharmonium-thunderscan-and-how-to-fill-up-in-space/

This week, Elliot sat down with Dan for the penultimate podcast of 2023, and what a week it was. We started with news about Voyager; at T+46 years from launch, …read more (https://hackaday.com/2023/12/15/hackaday-podcast-episode-248-cthulhu-clock-radio-transharmonium-thunderscan-and-how-to-fill-up-in-space/)

Repairing an HP Power Supply
https://hackaday.com/2023/12/15/repairing-an-hp-power-supply/

One of the interesting things about living in modern times is that a confluence of the Internet and rapid changes in the electronics industry means that test gear that used …read more (https://hackaday.com/2023/12/15/repairing-an-hp-power-supply/)

1D LED PONG, Arduino-Style
https://hackaday.com/2023/12/15/1d-led-pong-arduino-style/

Maybe it’s just us, but isn’t it kind of amazing that in a world of pretty darn realistic games, PONG is still thrilling to play? This 1D implementation by [newsonator] …read more (https://hackaday.com/2023/12/15/1d-led-pong-arduino-style/)

Inside Electronic Gain Control
https://hackaday.com/2023/12/15/inside-electronic-gain-control/

Normally, if you want to control the gain of an amplifier, you’ll use a variable resistor. You know, like a volume control. But what if you want to control the …read more (https://hackaday.com/2023/12/15/inside-electronic-gain-control/)

Take The Minimal Pain Out Of ESP32 Programming
https://hackaday.com/2023/12/15/take-the-minimal-pain-out-of-esp32-programming/