This is a Smart Parking System built with Arduino UNO, PIR motion sensors, Servo motors, and a 16x2 LCD display. The system uses two breadboards to neatly manage wiring and components. It monitors and updates the availability of parking slots, automates gate control, and displays real-time status on the LCD.
π¨βπ» Project by: Saptarshi Bose
- β Real-time slot availability detection via PIR sensors.
- πͺ Automated gate control using servo motors.
- π LCD screen shows up-to-date slot statuses.
- π Toggle logic for slot availability based on motion detection.
- π Prevents gate opening if all slots are occupied.
A microcontroller board based on the ATmega328P. It controls sensors, servos, and the LCD.
Detects movement. Used to: - Toggle slot availability. - Trigger gate openings.
Used to simulate gate movement. Rotates 90Β° to open, and 0Β° to close.
Displays parking slot availability. Controlled using the LiquidCrystal library.
Used to control the **contrast** of the LCD display. Connected to pin V0 of the LCD.
Connected in series with the **LCD backlight** (pin A/Anode) to limit current and prevent damage.
Used for wiring components: - Breadboard 1: Sensors and servos - Breadboard 2: LCD and supporting components
For easy connections across components and Arduino.
| Component | Quantity |
|---|---|
| Arduino UNO | 1 |
| PIR Motion Sensors | 4 |
| Servo Motors | 2 |
| 16x2 LCD Display | 1 |
| Potentiometer | 1 |
| 220Ξ© Resistor | 1 |
| Breadboards | 2 |
| Jumper Wires | As needed |
| Power Source | 1 (Battery or USB) |
| Component | Arduino Pin |
|---|---|
| LCD (RS, E, D4βD7) | 12, 11, 5, 4, 3, 2 |
| PIR for Slot 1 Availability | 7 |
| PIR for Slot 2 Availability | 8 |
| PIR to Open Gate for Slot 1 | 13 |
| PIR to Open Gate for Slot 2 | 6 |
| Servo Motor for Slot 1 Gate | 9 |
| Servo Motor for Slot 2 Gate | 10 |
-
Slot Toggling Logic:
- PIR at pin 7 toggles Slot 1 availability.
- PIR at pin 8 toggles Slot 2 availability.
-
Servo Gate Control:
- PIR at pin 13 opens Servo 1 gate.
- PIR at pin 6 opens Servo 2 gate only if at least one slot is available.
-
LCD Display:
- Displays:
Slot 1: A / NA Slot 2: A / NA
- Displays:
π§ͺ Simulated and tested using Tinkercad or a similar simulation platform.
π View the Tinkercad Simulation
-
Breadboard 1:
- PIR sensors and servo motors.
-
Breadboard 2:
- LCD, potentiometer, 220Ξ© resistor, and control pins.
- Add buzzer/LED alerts for full capacity.
- Integrate Wi-Fi or Bluetooth for app-based monitoring.
- Expand to more slots using multiplexers or shift registers.
This project is open-source for educational and non-commercial use.
Made with β€οΈ using Arduino and real-world problem-solving by Saptarshi Bose.