Last year, I took a look at some mostly low-cost passive infrared (PIR) motion sensor modules. Then recently, I became more aware of cheap microwave radar motion sensor modules. The popular version of ...

Electronics hobbyists, experimenters and constructors of microcontroller project frequently need to measure/detect voltage, current, frequency, temperature and… proximity. Most measure ...

Your garden variety motion detector uses IR, but these days, there are fancier technologies for achieving similar goals. If so desired, you can source yourself a microwave-based presence sensor ...

Your garden variety motion detector uses IR, but these days, there are fancier technologies for achieving similar goals. If so desired, you can source yourself a microwave-based presence sensor ...

TOKYO, Nov. 17, 2025 /PRNewswire/ -- SwitchBot, a leading provider of AI-enabled embodied home robotics systems, today officially launched its brand-new battery-powered Presence Sensor, equipped with ...

When you can package a radar system in a 10- × 10-mm chip, you end up with a new type of sensor that was unimagined a few years ago. Today, it’s becoming common practice to use a radar chip for some ...

WASHINGTON (Reuters) - Alphabet Inc's <GOOGL.O> Google unit won approval from U.S. regulators to deploy a radar-based motion sensing device known as Project Soli. The Federal Communications Commission ...

Many close-proximity motion detectors use the classic, widely available passive-infrared (PIR) approach, which is effective but has limited sensitivity and adjustability, and can’t “see” through ...

WASHINGTON (Reuters) - Alphabet Inc's Google unit won approval from U.S. regulators to deploy a radar-based motion sensing device known as Project Soli. The Federal Communications Commission (FCC) ...