Description This smart sound alert system illustrate the potential of using Arduino, buzzer and ultrasonic sensor in building a security system. Use case Creating a smart alarm system. Step 1: The ...

This is an Arduino-based distance detection system using an HC-SR04 ultrasonic sensor. When an object comes within 100 cm, the system activates a buzzer with random tones and lights up an LED.

The design of a “third eye for the blind,” which employs ultrasonic waves to detect surrounding obstructions and notify users with a buzzer sound or vibration, is made feasible by the collaboration of ...