The ultrasonic distance sensor module transmits ultrasonic waves from one point and receives signals from another point. When the signal is sent, when it detects an object in the path, the signal will be sent to the Arduino board, and the power will be sent to the Arduino board A small piezoelectric buzzer will make a sound/alarm/beep. The distance that can be measured here is from 2cm to 80cm, and this distance can be changed by modifying the Arduino code. Now let's go to the construction stage of this project
