The ultra sonic circuit is adjusted in such a way as to stay in balance as long the same as the output frequency of the transmitter. If there is some movement in the area covered by the ultrasonic ...

This project presents a distance indicator using a Raspberry Pi, LED lights, a buzzer, and an ultrasonic sensor. The system is designed to visually and audibly alert users as they approach a specified ...

🛠️ Components Used 🔹 Arduino Uno – Microcontroller for processing sensor data. 🔹 HC-SR04 Ultrasonic Sensor – Measures distance using sound waves. 🔹 LEDs (5x) – Visual indicators for different ...