#define BLYNK_TEMPLATE_ID "TMPL4MYAfJKx"
#define BLYNK_TEMPLATE_NAME "Smart Parking System"
#define BLYNK_AUTH_TOKEN "1evGxYqGpVupphVatdCMVQxftkWmQNPO" //token blynk


#include <WiFi.h>
#include "SPI.h"
#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>

/**
 * ILI9341 TFT libraries and resources
 */
const int TFT_CS = 15;
const int TFT_DC = 2;
const int TFT_MOSI = 23;
const int TFT_SLK = 18;
const int TFT_RST = 4;

/**
 * Ultrasonic 1 and Ultrasonic 2 declaration echo and trigger pin
 */
int Trigger1 = 12;
int Echo = 13;
int Trigger2 = 26;
int Echo2 = 25;
int LED1= 21;
int LED2= 32;

/**
 * Hardware tft and coding tft configuration
 */
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);

#define BOXSIZE 130 // Set unit for box to be display in tft lcd
int dis1;
int dis2;

void setup() {
  pinMode(Trigger1,OUTPUT); // Sets the Ultrasonic1 trigPin as an OUTPUT
  pinMode(Echo,INPUT); // Sets the Ultrasonic1 Echo1 as an OUTPUT
  pinMode(Trigger2,OUTPUT); // Sets the Ultrasonic2 trigPin as an OUTPUT
  pinMode(Echo2,INPUT); // Sets the Ultrasonic2 Echo1 as an OUTPUT
  pinMode(LED1, OUTPUT);
  pinMode(LED2, OUTPUT);
  Serial.begin(115200); 

  tft.begin();
  tft.setRotation(1);
  Serial.begin(115200);
  tft.fillScreen(ILI9341_BLACK);
  tft.setCursor(40, 10);
  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  tft.print("IOT PARKING SYSTEM");
}

void loop() {
  
  digitalWrite(Trigger1,LOW);
  delayMicroseconds(2);
  digitalWrite(Trigger1,HIGH);
  delayMicroseconds(2);
  digitalWrite(Trigger1,LOW);

  long timedelay = pulseIn(Echo,HIGH);
  int distance1 = 0.0343 * (timedelay/2);

  Serial.print("Sensor 1 : ");
  Serial.println(distance1);

  delayMicroseconds(2);

  digitalWrite(Trigger2,LOW);
  delayMicroseconds(2);
  digitalWrite(Trigger2,HIGH);
  delayMicroseconds(2);
  digitalWrite(Trigger2,LOW);

  long td = pulseIn(Echo2,HIGH);
 int distance2 = 0.0343 * (td/2);

  Serial.print("Sensor 2 : ");
  Serial.println(distance2);
  
   if(dis1 != distance1 || dis2 != distance2){
     dis1=distance1;
     dis2=distance2;
  
  if (distance1 < 100 && distance2 < 100) {
  

      tft.fillRect(10, 60, BOXSIZE, BOXSIZE, ILI9341_RED);
      tft.setCursor(30, 100);
      tft.setTextColor(ILI9341_WHITE);
      tft.setTextSize(2);
      tft.println("OCCUPIED");
      tft.setCursor(50, 120);
      tft.setTextColor(ILI9341_WHITE);
     tft.setTextSize(2);
     tft.println("C001");

  tft.fillRect(170, 60, BOXSIZE, BOXSIZE, ILI9341_RED);
  tft.setCursor(190, 100);
  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  tft.println("OCCUPIED");
  tft.setCursor(210, 120);
  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  tft.println("C002");
  digitalWrite(LED1, LOW);    
  digitalWrite(LED2, LOW);    
   }
  

  else if (distance1 < 100 && distance2 > 100) {
    
    
     tft.fillRect(10, 60, BOXSIZE, BOXSIZE, ILI9341_RED);
     tft.setCursor(30, 100);
     tft.setTextColor(ILI9341_WHITE);
     tft.setTextSize(2);
     tft.print("OCCUPIED");
     tft.setCursor(50, 120);
     tft.setTextColor(ILI9341_WHITE);
     tft.setTextSize(2);
     tft.print("C001");

    tft.fillRect(170, 60, BOXSIZE, BOXSIZE, ILI9341_YELLOW);
    tft.setCursor(190, 100);
    tft.setTextColor(ILI9341_BLACK);
    tft.setTextSize(2);
   tft.print("AVAILABLE");
   tft.setCursor(210, 120);
   tft.setTextColor(ILI9341_BLACK);
    tft.setTextSize(2);
    tft.print("C002"); 
  digitalWrite(LED1, LOW);    
  digitalWrite(LED2, HIGH);        
    }
  
  else if (distance1 > 100 && distance2 < 100) {
   
  tft.fillRect(10, 60, BOXSIZE, BOXSIZE, ILI9341_YELLOW);
  tft.setCursor(30, 100);
  tft.setTextColor(ILI9341_BLACK);
  tft.setTextSize(2);
  tft.print("AVAILABLE");
  tft.setCursor(50, 120);
  tft.setTextColor(ILI9341_BLACK);
  tft.setTextSize(2);
  tft.print("C001");

  tft.fillRect(170, 60, BOXSIZE, BOXSIZE, ILI9341_RED);
  tft.setCursor(190, 100);
  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  tft.print("OCCUPIED");
  tft.setCursor(210, 120);
  tft.setTextColor(ILI9341_WHITE);
  tft.setTextSize(2);
  tft.print("C002");  
  digitalWrite(LED1, HIGH);    
  digitalWrite(LED2, LOW);     
   }
  
   else if (distance1 > 100 && distance2 > 100) {
  
  tft.fillRect(10, 60, BOXSIZE, BOXSIZE, ILI9341_YELLOW);
  tft.setCursor(20, 100);
  tft.setTextColor(ILI9341_BLACK);
  tft.setTextSize(2);
  tft.print("AVAILABLE");
  tft.setCursor(50, 120);
  tft.setTextColor(ILI9341_BLACK);
  tft.setTextSize(2);
  tft.print("C001");

  tft.fillRect(170, 60, BOXSIZE, BOXSIZE, ILI9341_YELLOW);
  tft.setCursor(180, 100);
  tft.setTextColor(ILI9341_BLACK);
  tft.setTextSize(2);
  tft.print("AVAILABLE");
  tft.setCursor(210, 120);
  tft.setTextColor(ILI9341_BLACK);
  tft.setTextSize(2);
  tft.print("C002");
  digitalWrite(LED1, HIGH);    
  digitalWrite(LED2, HIGH);    
   }
}
}