Overview: This project enables real-time distance measurement using an ultrasonic sensor (HC-SR04) and displays the measured distance on a webpage. The ESP32 microcontroller reads the data from the ...

Arduino code for detecting basic hand gestures using HC-SR04 ultrasonic distance sensor array. This code utilizes three HC-SR04 ultrasonic distance sensor modules placed linearly with a fixed distance ...

We developed a new 3D image sensor consisting of an FPGA board, an ultrasonic transmitter, an array receiver and an AD converter. The image sensor transmits 41.7 kHz ultrasonic wave modulated with a ...