The Intel 8051 series of 8-bit microcontrollers is long-discontinued by its original manufacturer, but lives on as a core included in all manner of more recent chips. It’s easy to …read more (https://hackaday.com/2025/05/09/a-single-chip-computer-for-the-8051-generation/)

Inside a Selective Voltmeter
https://hackaday.com/2025/05/09/inside-a-selective-voltmeter/

[Martin Lorton] has a vintage Harmon 4200B selective voltmeter that needed repair. He picked it up on eBay, and he knew it wasn’t working, but it was in good condition, …read more (https://hackaday.com/2025/05/09/inside-a-selective-voltmeter/)

Antique Mill Satisfies Food Cravings
https://hackaday.com/2025/05/09/antique-mill-satisfies-food-cravings/

Everyone knows what its like to get a hankering for a specific food. In [Attoparsec]’s case, he wanted waffles. Not any waffles would do, though; he needed waffles in the …read more (https://hackaday.com/2025/05/09/antique-mill-satisfies-food-cravings/)

The Nuclear War You Didn’t Notice
https://hackaday.com/2025/05/09/the-nuclear-war-you-didnt-notice/

We always enjoy [The History Guy], and we wish he’d do more history of science and technology. But when he does, he always delivers! His latest video, which you can …read more (https://hackaday.com/2025/05/09/the-nuclear-war-you-didnt-notice/)

The Apple II MouseCard IRQ is Synced to Vertical Blanking After All
https://hackaday.com/2025/05/09/the-apple-ii-mousecard-irq-is-synced-to-vertical-blanking-after-all/

http://www.applelogic.org/PeripheralCards.html
" data-image-caption="The Apple II MouseCard (Credit: AppleLogic.org)
" data-medium-file="https://hackaday.com/wp-content/uploads/2025/05/Apple_II_MouseCARD.jpg?w=400" data-large-file="https://hackaday.com/wp-content/uploads/2025/05/Apple_II_MouseCARD.jpg?w=563">Recently [Colin Leroy-Mira] found himself slipping into a bit of a rabbit hole while investigating why only under Apple II MAME emulation there was a lot of flickering when using …read more (https://hackaday.com/2025/05/09/the-apple-ii-mousecard-irq-is-synced-to-vertical-blanking-after-all/)

Web Dashboard and OTA Updates for the ESP32
https://hackaday.com/2025/05/10/web-dashboard-and-ota-updates-for-the-esp32/

Today we are happy to present a web-based GUI for making a web-based GUI! If you’re a programmer then web front-end development might not be your bag. But a web-based …read more (https://hackaday.com/2025/05/10/web-dashboard-and-ota-updates-for-the-esp32/)

PoE-powered GPIB Adapter with Ethernet and USB-C Support
https://hackaday.com/2025/05/10/poe-powered-gpib-adapter-with-ethernet-and-usb-c-support/

In the world of (expensive) lab test equipment the GPIB (general purpose interface bus) connection is hard to avoid if you want any kind of automation, but nobody likes wrangling …read more (https://hackaday.com/2025/05/10/poe-powered-gpib-adapter-with-ethernet-and-usb-c-support/)

“Man and Machine” vs “Man vs Machine”
https://hackaday.com/2025/05/10/man-and-machine-vs-man-vs-machine/