August 2025 edition of Elektor is out. The IoT & Sensors edition has something for everyone, whether you’re looking for ...

You can test the circuit with a function generator and a 40 - kHz ultrasonic transmitter or a suitable tweeter. An alternative signal source is, for example, the inexpensive Grove ultrasonic distance ...

Ultrasonic fingerprint scanners aren’t the only option if you want to hide the sensor in the display. Optical-capacitive fingerprint scanners are being used for this purpose too.

The OnePlus 13 is officially going to be IP69 water and dust resistant and will carry an ultrasonic fingerprint sensor.

The air bubble sensor circuit is designed to render a logic-level digital output whenever the invisible infrared beam from the infrared through-beam sensor’s infrared emitter falls on the infrared ...

With materials being simple cardboard, aluminum foil, popsicle sticks, some mesh, and a single ultrasonic sensor for harvesting the transmitter and receiver out of, this is the kind of project you ...

Here’s a comparison of the performance and limitations of inductive, capacitive, photelectric and ultrasonic proximity sensors.