“Emergency Law Enforcement Officer Hologram program activated. Please state the nature of your criminal or civil emergency.” Taking a cue from Star Trek: Voyager, the Seoul Metropolitan Police Agency is …read more (https://hackaday.com/2025/08/24/hackaday-links-august-24-2025/)

RP2040 Assembly Language Mix and Match
https://hackaday.com/2025/08/24/rp2040-assembly-language-mix-and-match/

[David] is building a project with an OLED, a keyboard, and an RP2040. He’s perfected a scanning routine in C to work with the keyboard, but he still had some …read more (https://hackaday.com/2025/08/24/rp2040-assembly-language-mix-and-match/)

A PLL For Perfect Pitch
https://hackaday.com/2025/08/24/a-pll-for-perfect-pitch/

When Hackaday runs a contest, we see all manner of clever projects. But inevitably there are some we don’t see, because their builders didn’t manage to get them finished in …read more (https://hackaday.com/2025/08/24/a-pll-for-perfect-pitch/)

DIY Telescope Mount for Stellar Tracking
https://hackaday.com/2025/08/25/diy-telescope-mount-for-stellar-tracking/

Pointing at stars may seem easy on the surface—just mount a telescope to a tripod and you’re done, right? As anyone who’s spent time with a telescope can tell you, …read more (https://hackaday.com/2025/08/25/diy-telescope-mount-for-stellar-tracking/)

Dead Bug Timer Relay Needs No PCB
https://hackaday.com/2025/08/25/dead-bug-timer-relay-needs-no-pcb/

We often marvel at the many things a 555 can do. But [Zafer Yildiz] shows us that it can even take the place of a PCB. You’ll see what we …read more (https://hackaday.com/2025/08/25/dead-bug-timer-relay-needs-no-pcb/)

Radio Apocalypse: America’s Doomsday Rocket Radios
https://hackaday.com/2025/08/25/radio-apocalypse-americas-doomsday-rocket-radios/

Even in the early days of the Cold War, it quickly became apparent that simply having hundreds or even thousands of nuclear weapons would never be a sufficient deterrent to …read more (https://hackaday.com/2025/08/25/radio-apocalypse-americas-doomsday-rocket-radios/)

CERN’s Large Hadron Collider Runs on A Bendix G-15 in 2025
https://hackaday.com/2025/08/25/cerns-large-hadron-collider-runs-on-a-bendix-g-15-in-2025/

The Bendix G-15 refurbished by [David at Usagi Electric] is well known as the oldest digital computer in North America. The question [David] gets most is “what can you do …read more (https://hackaday.com/2025/08/25/cerns-large-hadron-collider-runs-on-a-bendix-g-15-in-2025/)

Debugging the Instant Macropad
https://hackaday.com/2025/08/25/debugging-the-instant-macropad/