The main aim of this project is to develop an IoT-based automatic parking slot detection and monitoring system using an Arduino microcontroller. This system helps vehicle owners easily identify available parking spaces and reduces the time and effort required to find a vacant parking slot. The proposed system consists of an Arduino microcontroller, ultrasonic sensors, an IR sensor, an LCD display, a servo motor, and an IoT-based mobile application. Ultrasonic sensors are installed in each parking slot to detect whether the slot is occupied or vacant by measuring the distance between the sensor and the vehicle. The detected information is sent to the Arduino, which processes the data and displays the real-time parking slot availability on the LCD display. The same information is also transmitted to the user's mobile application through IoT for remote monitoring. An IR sensor is placed near the entrance to detect the arrival of a vehicle. Based on vehicle detection and parking slot availability, the Arduino controls the servo motor, which acts as an automatic entry gate to OPEN or CLOSE the parking entrance. If parking slots are available, the gate opens to allow the vehicle to enter. If all parking slots are occupied, the gate remains closed. The entire system is programmed using Embedded C language in the Arduino IDE. This proposed system provides an efficient, reliable, and user-friendly solution for smart parking management. It can be implemented in shopping malls, colleges, hospitals, offices, apartments, and other public parking areas.            

The features of the project are:  

1. Automatic Parking Slot Detection: Uses ultrasonic sensors to detect whether each parking slot is vacant or occupied.
2. Real-Time Slot Monitoring: Continuously monitors the availability of parking spaces.
3. LCD Display: Displays the total number of parking slots, available slots, and occupied slots.
4. IoT-Based Monitoring: Sends parking slot information to a mobile application through the internet.
5. Automatic Gate Control: Uses an IR sensor to detect vehicles entering the parking area.
6. Servo Motor Operation: Automatically opens and closes the parking entrance gate based on vehicle detection and slot availability.
7. Arduino-Based Control: Arduino processes sensor information and controls all connected components.
8. Reduced Parking Time: Helps drivers quickly identify available parking spaces.
9. Prevention of Unnecessary Entry: Prevents vehicles from entering when all parking slots are occupied.
10. User-Friendly System: Provides simple and convenient parking information through the LCD and mobile application.
11. Low-Cost Implementation: Uses easily available electronic components for an economical parking solution.
12. Wide Range of Applications: Suitable for shopping malls, colleges, hospitals, offices, apartments, and public parking areas.

           

The major building blocks of this project are:  

1. Power Supply
2. Arduino UNO Micro Controller.
3. IR sensor.
4. Three ultrasonic sensors.
5. LCD display.
6. ESP8266 WI-FI module.
7. Servo motor.
8. LED indicators.

             

Software’s used:  

1. Arduino IDE STUDIO compiler for Embedded C programming.
2. Express SCH for Circuit design.

           

Block Diagram:        

video: