Car Parking Sensor Using ATmega32, Ultrasonic Sensor, LCD Display, LEDs, and Buzzer. Objective: The aim of this project is to design a simple car parking sensor system that helps drivers detect ...

ATmega32 Microcontroller HC-SR04 Ultrasonic Sensor 16x2 LCD Display Red, Green, and Blue LEDs Buzzer System Architecture The project is implemented using a layered software model, enhancing modularity ...

Instead, it relies on an ultrasonic distance sensor to detect a hand (or foot) waved in front of the door. An Arduino Leonardo runs the show, sounding a buzzer when the ultrasonic sensor is triggered.