IoT Smart Parking System: A Smart City Solution

Finding parking in crowded cities is a nightmare. A Smart Parking System uses sensors to detect occupied slots and guides drivers to free ones.

System Components

• Ultrasonic Sensors (HC-SR04): Placed above each slot to detect a car's presence.
• ESP32 / NodeMCU: Collects sensor data and sends it to the cloud.
• LED Indicators: Green = Free, Red = Occupied (at each slot).
• Cloud Platform (Firebase/ThingSpeak): Stores slot status.
• Mobile App / Web Dashboard: Displays a map of available slots.

How It Works

1. Each parking slot has an ultrasonic sensor mounted overhead.
2. The sensor measures distance. If < 50cm (car detected), the slot is occupied.
3. ESP32 reads all sensors and updates the cloud database.
4. The mobile app fetches this data and shows a live map.
5. Drivers can pre-book a slot!

Scaling Up

• Use LoRa for long-range communication in large parking lots.
• Integrate with payment gateways for automated billing.

Why This Project Stands Out

It's a real-world, scalable IoT application highly relevant to smart cities and urban planning.