Track Room Occupancy Without Cameras Using ESP32 Wi-Fi Drops

Learn how to repurpose your spare ESP32 boards into cost-effective presence detection sensors using the Tommy Sense ...
Hackaday

Reverse Engineering And Self-Hosting The OBI Smart Energy Tracker

Sold by German DIY store OBI, the OBI Energy Tracker is a €15 set of two devices, one of which you essentially stick on top ...
Interesting Engineering

Norwegian firm unveils world’s first certified 3D ultrasonic sensor for safer robots

Sonair unveils ADAR One, a certified 3D ultrasonic sensor that boosts robot safety with all-around human detection.
IEEE

Smart Luminance Control System Using Arduino, Bluetooth, and Android for Energy-Efficient Lighting

Abstract: In today's world, energy efficiency and smart technologies are becoming increasingly important. Lighting is a significant contributor to energy consumption, and traditional lighting systems ...
PCMag

Smart Glasses 101: I've Tried Every Type—Here's What They Actually Do

Smart glasses come in more forms than most people realize. After reviewing more than 20 pairs, I'm breaking down what's out ...
Hackaday

Building A Wireless Fingerprint Authorization Device

Once upon a time, there was a bit of a fad for fingerprint authentication in laptops and desktop computers. It has long since ...
Tech Times

ZemiSmart Releases Matter IR Blaster and AC Controller for Legacy Appliances

ZemiSmart Matter IR blaster and AC controller launch July 3, 2026, bringing legacy infrared appliances into Apple Home, ...