Published December 14, 2015 © GPL3+

Smart Car Parking

A website that shows the Empty car parkings available of a particular store or shopping mall.

IntermediateShowcase (no instructions)3,980

Things used in this project

Hardware components

Proximity Sensor

Software apps and online services

Arduino IDE

ThingSpeak API

Story

HI...

Smart car parking that allows people to find the empty car parking of a shopping mall or store from Home itself or while driving. so that they can easily find a place to park their cars easily without any trouble.

The Proximity sensors (IR pair or one can use LDR) arranged all over the parking areas detects the presence of car and calculates the number of empty car parking.

1 / 3 • Sensor fixed in on a Car parking

LinkitONE which is already connected to the WiFi network, Uploads the number of empty car parking to the website (I used ThingSpeak) Where the entire car parking details i.e total number of car parking, Number of car parking occupied and empty car parking will be in the form of table.

1 / 4 • Entire car parking details on website in the form of Table

With this one People can easily find the parking places remotely and the shopkeepers can find the number of empty car parkings at a given time and can increase or decrease the parking areas depending on the data shown in the Graph.

1 / 3 • Graph

Code

#include <LTask.h>
#include <LWiFi.h>
#include <LWiFiClient.h>

#define WIFI_AP "D-Link"
#define WIFI_PASSWORD "Your Password here"
#define WIFI_AUTH LWIFI_WPA // choose from LWIFI_OPEN, LWIFI_WPA, or LWIFI_WEP.
#define SITE_URL "api.thingspeak.com"
String api = "Write APIKEY here";
LWiFiClient c;

void setup()
{
  
  Serial.begin(9600);
  Serial.println("hello");
  delay(3000);
  LWiFi.begin();

  // keep retrying until connected to AP
  Serial.println("Connecting to AP");
  while (0 == LWiFi.connect(WIFI_AP, LWiFiLoginInfo(WIFI_AUTH, WIFI_PASSWORD)))
  {
    Serial.println(".");
    delay(1000);
  }
  Serial.println("WiFi Connected");
  
  // keep retrying until connected to website
  
}


void loop()
{
  // Make sure we are connected, and dump the response content to Serial
  if(c.available())
  {
   char v=c.read(); 
   Serial.print(v);
  }
    
  Serial.println("connecting to Thingspeak");
  delay(3000);
  int val=analogRead(A0);
  if(val>=360)
  {
    val=1;
  }
  else
  val=0;
  
  String count= String(val);
  
  Update("field1="+count);
  
  delay(5000);
}

void Update(String data)
{
  if(c.connect(SITE_URL,80))
  {
    c.print("POST /update HTTP/1.1\n");
c.print("Host: api.thingspeak.com\n");
c.print("Connection: close\n");
c.print("X-THINGSPEAKAPIKEY: "+api+"\n");
c.print("Content-Type: application/x-www-form-urlencoded\n");
c.print("Content-Length: ");
c.print(data.length());
c.print("\n\n");
c.print(data);
  
  if (c.connected())
{
Serial.println("Uploaded to ThingSpeak...");
Serial.println();
}
else
{
  Serial.println("failed to connect");
}
  }
}

<script type='text/javascript' src='https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js'></script>
<script type='text/javascript' src='https://www.google.com/jsapi'></script>
<script type='text/javascript'>

  // set your channel id here
  var channel_id = 70127;
  // set your channel's read api key here if necessary
  var api_key = 'Read API KEY here';
   

  // global variables
  var chart, charts, data;

  // load the google gauge visualization
 
   google.setOnLoadCallback(drawTable);
  
   function displayTable(p) {
        var data = new google.visualization.DataTable();
        data.addColumn('number', 'Total number of car parking');
        data.addColumn('number', 'Number of car parkings filled');
        data.addColumn('number', 'empty car parkings');
        data.addRows([
          [3,   p , 3-p  ]
          
        
        ]);

        var table = new google.visualization.Table(document.getElementById('table_div'));

        table.draw(data, {showRowNumber: true, width: '100%', height: '100%'});
      }
  
  function drawTable()
  
    {
      
      var p;
       $.getJSON('https://api.thingspeak.com/channels/' + channel_id + '/feed/last.json?api_key=' + api_key, function(data) {

      // get the data point
      p = data.field1;

      // if there is a data point display it
      if (p) {
        p = Math.round(p);
       displayTable(p);
      }

    });
     
       
      

   
    }
  

     
</script>

Credits

Bharath Ram

6 projects • 22 followers