On the old iPods, generally referred to here in the future as iPod Classic, there lives a tiny, undocumented chip called Mikey. It sits at the headphone output and performs …read more (https://hackaday.com/2026/09/27/reverse-engineering-apples-mikey-chip/)

Enormous Fluid Simulation on Flip Dots is also Enormous Amount of Work
https://hackaday.com/2026/09/27/enormous-fluid-simulation-on-flip-dots-is-also-enormous-amount-of-work/

Flip dot displays are cool, and more people realize that after [mitxela]’s fluid simulation on flip dots installation was on display at EMF 2026. As glorious as the result is, …read more (https://hackaday.com/2026/09/27/enormous-fluid-simulation-on-flip-dots-is-also-enormous-amount-of-work/)

Ways To Empirically Identify a Magnet’s Polarity
https://hackaday.com/2026/09/27/ways-to-empirically-identify-a-magnets-polarity/

Every magnet has a north and a south pole, but which is which? Sometimes it matters. If a product one builds features a magnetic closure or other part, the polarity …read more (https://hackaday.com/2026/09/27/ways-to-empirically-identify-a-magnets-polarity/)

Defeating Satellite Spoofing with Galileo’s Encryption
https://hackaday.com/2026/09/27/defeating-satellite-spoofing-with-galileos-encryption/

Considering how important it is for everything from navigation to keeping clocks in sync, satellite navigation systems are surprisingly vulnerable to a variety of attacks, ranging from simple jamming to …read more (https://hackaday.com/2026/09/27/defeating-satellite-spoofing-with-galileos-encryption/)

Going on a Tangent with the Intel 8087’s Hybrid CORDIC Algorithm
https://hackaday.com/2026/09/27/going-on-a-tangent-with-the-intel-8087s-hybrid-cordic-algorithm/

Continuing their reverse-engineering of Intel’s 8087 FPU, [Ken Shirriff] and friends took a look at one of the trigonometric functions, specifically FPTAN.  The most exciting part with such reverse-engineering is …read more (https://hackaday.com/2026/09/27/going-on-a-tangent-with-the-intel-8087s-hybrid-cordic-algorithm/)

Center-Pivot System Modified to Mow Lawn
https://hackaday.com/2026/09/27/center-pivot-system-modified-to-mow-lawn/

When flying over the United States, Australia, and a few other vast and relatively empty parts of the world, strange circular formations can be spotted. These are typically center-pivot irrigation …read more (https://hackaday.com/2026/09/27/center-pivot-system-modified-to-mow-lawn/)

Hackaday Links: September 27, 2026
https://hackaday.com/2026/09/27/hackaday-links-september-27-2026/

It isn’t quite hailing frequencies open, but researchers from Harvard claim they’ve picked up a radio signal directly from a nearby exoplanet. Before you get too excited, planets in our …read more (https://hackaday.com/2026/09/27/hackaday-links-september-27-2026/)

An IR Blaster Project, in a Nutshell
https://hackaday.com/2026/09/28/an-ir-blaster-project-in-a-nutshell/