It’s fair to say that QR codes are a technology that has finally come of age. A decade or more ago they were a little over-hyped and sometimes used in …read more (https://hackaday.com/2025/05/13/studying-qr-code-degradation/)

Trackside Observations Of A Rail Power Enthusiast
https://hackaday.com/2025/05/13/trackside-observations-of-a-rail-power-enthusiast/

The life of a Hackaday writer often involves hours spent at a computer searching for all the cool hacks you love, but its perks come in not being tied to …read more (https://hackaday.com/2025/05/13/trackside-observations-of-a-rail-power-enthusiast/)

The World’s Longest Range LED Flashlight
https://hackaday.com/2025/05/13/the-worlds-longest-range-led-flashlight/

[ApprehensiveHawk6178] reports that they have made the world’s longest range LED flashlight! While technically “handheld”, you’re gonna need both hands for this monster. According to the creator, it draws 1.2 …read more (https://hackaday.com/2025/05/13/the-worlds-longest-range-led-flashlight/)

Remembering Memory: EMS, and TSRs
https://hackaday.com/2025/05/13/remembering-memory-ems-and-tsrs/

You often hear that Bill Gates once proclaimed, “640 kB is enough for anyone,” but, apparently, that’s a myth — he never said it. On the other hand, early PCs …read more (https://hackaday.com/2025/05/13/remembering-memory-ems-and-tsrs/)

A Toolchanging Delta 3D printer
https://hackaday.com/2025/05/13/a-toolchanging-delta-3d-printer/

We’ve seen quite a few delta 3D printers, and a good number of toolchanging printers, but not many that combine both worlds. Fortunately, [Ben Wolpert]’s project fills that gap with …read more (https://hackaday.com/2025/05/13/a-toolchanging-delta-3d-printer/)

Thermal Monocular Brings the Heat at 10X
https://hackaday.com/2025/05/13/thermal-monocular-brings-the-heat-at-10x/

[Project 326] is following up on his thermal microscope with a thermal telescope or, more precisely, a thermal monocular. In fact, many of the components and lenses in this project …read more (https://hackaday.com/2025/05/13/thermal-monocular-brings-the-heat-at-10x/)

A Web Based Controller For Your Garage Door
https://hackaday.com/2025/05/13/a-web-based-controller-for-your-garage-door/

Garage doors! You could get out of your vehicle and open and close them yourself, but that kinda sucks. It’s much preferable to have them raise and lower courtesy some …read more (https://hackaday.com/2025/05/13/a-web-based-controller-for-your-garage-door/)