Smart Car Parking System

Count cars when they enter and exit in the parking space area, this helps find out available car parking space.

BeginnerShowcase (no instructions)4 hours30,026

Things used in this project

Hardware components

Arduino UNO

Jumper wires (generic)

Adafruit RGB Backlight LCD - 16x2

16 MHz Crystal

Linear Regulator (7805)

Resistor 2.21k ohm

Capacitor 10 µF

Capacitor 22 pF

Capacitor 1 µF

Li-Ion Battery 1000mAh

PIR Motion Sensor (generic)

Software apps and online services

Arduino IDE

Story

Hi everyone! This my first tutorial goes through on CAR PARKING COUNTER.

Introduction

The Arduino is platform open-source hardware, based on a simple board with inputs and outputs, analog and digital, in a development environment that is based on the programming language processing. It is a device that connects the physical world with the virtual world, or the analogue world with the digital. For more go to www.arduino.cc.

Here we made a Arduino clone board using Atmega 328P:

For creating this project we have to use these components:

1. Arduino Uno or clone board

2. 16x2 Lcd

3. IR sensor module or PIR motion sensor. for this project i used IR sensor module

4. Battery pack

The code is booted to Arduino board using Arduino IDE. Through this project we could find out the number of cars in a parking area, number of car entering and exiting simultaneously.

Code

Car Parking counter

#include <LiquidCrystal.h>
LiquidCrystal lcd (12,11,5,4,3,2);
int IR_1 = 5; //exit
int IR_2 = 4; //enter
int counter=0;
int currentState=0;
int previousState_1=0;
int previousState_2=0;
int IR_1_op;
int IR_2_op;
void setup() {
  // put your setup code here, to run once:
Serial.begin (9600);
pinMode(IR_1,INPUT);
pinMode(IR_2,INPUT);
lcd.begin (16,2);
}

void loop() {
  // put your main code here, to run repeatedly:

lcd.setCursor (0,0);
lcd.print ("NO.OF CARS:");
lcd.setCursor (0,1);
lcd.print ("CAR");
IR_1_op = digitalRead(IR_1);
IR_2_op = digitalRead(IR_2);
Serial.println(digitalRead(IR_2));
if (IR_1_op == HIGH && IR_2_op == LOW)
{
 currentState=1;  
}
else 
{
  currentState=0;
}
if(currentState!=previousState_1)
{
  if(currentState==1)
  {
    counter=counter+1;
    lcd.setCursor(13,0);
    lcd.print(counter);
     lcd.setCursor(4,1);
    lcd.print("ENTER");
  }
}
  previousState_1=currentState;
  delay (250);  
 Serial.println(counter);
if (IR_1_op == LOW && IR_2_op == HIGH)
{
 currentState=1;  
}
else 
{
  currentState=0;
}
if(currentState!=previousState_2)
{
  if(currentState==1)
  {
    counter=counter-1;
    lcd.setCursor(13,0);
    lcd.print(counter);
     lcd.setCursor(4,1);
    lcd.print("LEAVE");
  }
}
  previousState_2=currentState;
  delay (250);  
 Serial.println(counter); 
}