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[Arduino] Checking if the room light is on from the outside. Building a "Door-Through Lighting Indicator" that runs with auto-calibration and ultra-low power consumption

Have you ever been in a situation, whether in a conference room, a private office, or a room in your own home, where you can't tell if someone is inside (or if the light is on) from the outside ...
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[Kato RC #29] The Day AI Started Living in a Microcontroller for $44 — How the Arduino UNO Q Changed the 'Definition of Electronics Hobbyism'

In October 2025, Qualcomm acquired Arduino. At that moment, shockwaves ran through the maker community worldwide. 'Arduino is dead,' 'This is the end of open source.' Reddit erupted, and the Hacker ...

How Hisense RGB MiniLED Displays Power 2026 World Cup’s VAR

A pivotal VAR-determined ruling overturn in the 2026 World Cup was made possible by Hisense’s RGB MiniLED display panel.
MUO on MSN

My LED strips now do things Philips Hue can't — and the whole setup cost me $15

Expensive lighting isn't automatically smarter.
Hackaday

Accurate Split-Flap Display Can Be 3D Printed

Split-flap displays are a great, low-power way to display text to a wide audience. Compared to other display technologies ...

Scientists develop predictive roadmap to boost performance in next-gen spintronics

Chiral 2D metal halide perovskites (MHPs) are among the most promising materials for future technologies that exploit the ...
Hackaday

All The Different Lasers, And How Well They Mark 3D Prints

Stefan] of CNC Kitchen has an informative video describing his experiences with trying to cleanly laser-mark 3D printed ...