The authors propose a radar made with the ultrasonic sensor type HC - SR04, developed for Arduino. The novelty added by this paper is the development of specific libraries aiming to interface the ...

Tech-Stack: Arduino-UNO, NodeMCU-ESP8266, Ultrasonic sensor, Servo-motor, OLED-display, Preprocessing-3-RADAR-Screen, IFTTT Notifications service, Buzzer, Buttons. System to check surrounding area on ...

In this paper, we present a single-chip 65 × 42 element ultrasonic pulse-echo fingerprint sensor with transmit (TX) beamforming based on piezoelectric micromachined ultrasonic transducers directly ...