When you tear into an old piece of test equipment, you’re probably going to come up against some surprises. That’s especially true of high-precision gear like oscilloscopes from the time …read more (https://hackaday.com/2024/11/23/close-shave-for-an-old-oscilloscope-saved-with-a-sticky-note/)

Forget Pixel Art: Try Subpixels
https://hackaday.com/2024/11/23/forget-pixel-art-try-subpixels/

[Japhy Riddle] was tired of creating pixel art. He went to subpixel art. The idea is that since each color pixel is composed of three subpixels, your display is actually …read more (https://hackaday.com/2024/11/23/forget-pixel-art-try-subpixels/)

RFID From First Principles and Saving a Cat
https://hackaday.com/2024/11/23/rfid-from-first-principles-and-saving-a-cat/

[Dale Cook] has cats, and as he readily admits, cats are jerks. We’d use stronger language than that, but either way it became a significant impediment to making progress with …read more (https://hackaday.com/2024/11/23/rfid-from-first-principles-and-saving-a-cat/)

$40 Ham Antenna Works Six Bands
https://hackaday.com/2024/11/23/40-ham-antenna-works-six-bands/

[My Ham Radio Journey] wanted to see if a “common person” (in his words) could build an effective vertical ham radio antenna. If you look at the video below, the …read more (https://hackaday.com/2024/11/23/40-ham-antenna-works-six-bands/)

Hacking the Soil to Combat Desertification
https://hackaday.com/2024/11/24/hacking-the-soil-to-combat-desertification/

While the Sahara Desert is an important ecosystem in its own right, its human neighbors in the Sahel would like it to stop encroaching on their environment. [Andrew Millison] took …read more (https://hackaday.com/2024/11/24/hacking-the-soil-to-combat-desertification/)

Modular Multi-Rotor Flies Up To Two Hours
https://hackaday.com/2024/11/24/modular-multi-rotor-flies-up-to-two-hours/

Flight time remains the Achilles’ heel of electric multi-rotor drones, with even high-end commercial units struggling to stay airborne for an hour. Enter Modovolo, a startup that’s shattered this limitation …read more (https://hackaday.com/2024/11/24/modular-multi-rotor-flies-up-to-two-hours/)

RISC CPU Lives in Excel
https://hackaday.com/2024/11/24/risc-cpu-lives-in-excel/

Last time we checked in on [Inkbox], he had made a 16-bit CPU in Excel. Impressive, but not really practical. Presumably, his latest project isn’t any more practical, but we …read more (https://hackaday.com/2024/11/24/risc-cpu-lives-in-excel/)