International Journal of Advanced Research in Computer and Communication Engineering

Abstract: Parking congestion in urban and semi-urban areas has become a critical issue due to the rapid increase in vehicle population and inefficient parking management. This paper presents the design and implementation of an IoT-enabled smart parking system for both indoor and outdoor organized parking areas. The proposed system uses ultrasonic sensors installed at each parking slot to detect vehicle occupancy. An ESP32 microcontroller acts as a zone controller, collecting sensor data and transmitting it via Wi-Fi to a cloud-based backend. The system employs a Node.js server for data processing and MongoDB Atlas for cloud data storage. A web-based dashboard developed using React and Vite provides real-time visualization of parking slot availability using a grid-based layout. Experimental results show that the proposed system provides accurate real-time slot monitoring, reduces parking search time, and improves parking space utilization. The system is scalable, cost-effective, and suitable for deployment in smart parking environments such as malls, campuses, hospitals, and public parking facilities.
Keywords— Smart Parking, IoT, Ultrasonic Sensor, ESP32, MongoDB Atlas, Node.js, Web Dashboard.

Downloads: | DOI: 10.17148/IJARCCE.2026.15230