But for a weekend project, [Vinod.S] took the ultrasonic transmitter and receiver from a distance-meter module and used amplitude modulation to send music ultrasonically from his laptop to a ...

They work by measuring the time it takes for an ultrasonic audio pulse to be reflected the receiver across a known distance. Wind direction can be calculated by taking velocity readings from two ...

An ultrasonic receiver is a specialized device used to detect and process ultrasonic waves, typically in the range of 20 kHz to several MHz. These receivers convert ultrasonic signals into readable ...

A properly lubricated bearing will produce a smooth rolling ultrasound, detectable by an ultrasonic receiver whose microphone can be placed in contact with the housing. If the bearing is ...

The module includes ultrasonic transmitter, receiver and control circuit. The MAX7219 is a compact, serial input/output common-cathode display drivers that interface microprocessors to 7-segment ...