In this video, I'm exploring the use of Mini PIR Sensors with ESP32 with both Arduino-based projects as well as making a movement sensor for Home Assistant by using ESPHome. The sensor is quite ...

Researchers develop a proof-of-concept millimeter wave radar sensor that can detect extremely small vibrations and movements. Researchers at the University of California, Davis, have developed a proof ...

Palm prints are discovered at between 25 and 30 percent of all crime scenes, researchers estimate, but are rarely used in ...

One of the coolest things about old hi-fi hardware is that it often came with flickety needles that danced with the audio ...

There's no time like the presence.

Although the RTL-SDR is cheap, accessible, and capable enough for many projects, it does have some important limitations. In ...