Make Your Own ESP32-Based Person Sensor, No Special Hardware Needed
https://hackaday.com/2026/01/28/make-your-own-esp32-based-person-sensor-no-special-hardware-needed/
https://hackaday.com/2026/01/28/make-your-own-esp32-based-person-sensor-no-special-hardware-needed/
Home automation with high usefulness and low annoyance tends to rely on reliable person sensing, and [francescopace]’s ESPectre shows one way to do that cheaply and easily by leveraging hardware …read more (https://hackaday.com/2026/01/28/make-your-own-esp32-based-person-sensor-no-special-hardware-needed/)
While it has become a word, laser used to be an acronym: “light amplification by stimulated emission of radiation”. But there is an even older technology called a maser, which …read more (https://hackaday.com/2026/01/28/the-amazing-maser/)