The latter application pushed Tesla to develop new sensors, or new ways to hide the sensors, because CEO Elon Musk didn’t like the idea of a visible sensor in the middle of a door. He said when ...

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.

Qualcomm has unveiled the 3D Sonic Sensor Gen 2 with a larger ultrasonic fingerprint reader area and much-improved performance.

Traditional ultrasonic sensor designs determine sensor-to-target distances by timing the propagation delay of high-frequency sound pulses as they travel from the sensor to the target and return.

“Ultrasonic Sensor” Suit Gives Wearers “SpiderSense” to Detect Lurking “Danger” By Jason Bittel March 15, 201311:16 AM Soon you, too, might be able to feel someone lurking behind you ...

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

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.