Instead, it relies on an ultrasonic distance sensor to detect a hand (or foot) waved in front of the door. An Arduino Leonardo runs the show, sounding a buzzer when the ultrasonic sensor is triggered.

This one is an unusual smart home project, potentially - how to monitor a fish tank’s health with an AI-enabled ultrasonic sensor system. The detailed project is highlighted on Hackser.io and features ...

It’s an Arduino controlled “RADAR” like project that uses the familiar Parallax ultrasonic sensor.

An evaluation kit from TDK showcases its USSM1.0 PLUS-FS ultrasonic sensor module for designs requiring obstacle detection and distance measurement.

The Xiaomi 15 series already employs Goodix's ultrasonic fingerprint sensors, and the OnePlus 13 has been confirmed to be next in line ...

Google has just launched the new Pixel 9 series and the core series includes an upgraded ultrasonic fingerprint sensor.