Repository Contents

smart-parking-arduino/
│
├── README.md                      # Project documentation (this file)
│
├── src/
│   └── smart_parking.ino          # Arduino code extracted & reconstructed
│
├── docs/
│   └── Parking Management.pdf     # Original project report you provided

Required Files:

File	Description
src/smart_parking.ino	Main Arduino code fully implemented from your PDF
docs/Parking Management.pdf	Original full documentation
README.md	This markdown project summary

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Hardware Used

• Arduino UNO
• 4× IR/PIR sensors for slot detection
  • Connected to pins 8, 9, 10, 11
• DC motor for gate
• L293D driver IC to control the motor
  • Open → Pin 6 HIGH
  • Close → Pin 7 HIGH
• 16×2 LCD Display (LiquidCrystal)
  • Pins connected in Proteus to 0, 1, 2, 3, 4, 5

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System Logic

Slot Detection

• LOW = slot occupied
• HIGH = slot free
• 4 sensors → real‑time 4‑slot availability

Gate Logic

• If freeSlots > 0 → gate opens automatically
• If freeSlots == 0 → gate closes
• Motor runs only briefly (pulse)

LCD Display

• Line 1 → Free: X Gate:O/C
• Line 2 → S1:O/F S2:O/F S3:O/F S4:O/F

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Arduino Code

The full code is included inside:

src/smart_parking.ino

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How to Run

1. Open Arduino IDE
2. Load:

   src/smart_parking.ino
   

3. Select Arduino UNO as board
4. Upload the code
5. Place objects in front of sensors to simulate cars
6. The LCD will update and the gate will open/close automatically

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Wiring Summary

Component	Arduino Pin
Slot Sensor 1	8
Slot Sensor 2	9
Slot Sensor 3	10
Slot Sensor 4	11
Motor Driver – Open	6
Motor Driver – Close	7
LCD (rs, en, d4–d7)	0,1,2,3,4,5

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Author

Hamed Nahvi