The code for controling ultrasonic sensor with Metro M4 Express (Adafruit) with ROSserial protocol uploaded in file name ultrasonic sensor. Circuit diagram for connecting 3 ultrasonic sensors with ...

Security Light with Ultrasonic Sensor This project creates a security light system using an ultrasonic sensor, LED, buzzer, and Arduino. The system detects motion within a specified range and ...

The previous studies have demonstrated that the PVDF pyroelectric sensor has good effects on acoustic power measurement. As a sensor, the accuracy of the measurement results is directly related to the ...