#include <Adafruit_GFX.h>       // include Adafruit graphics library
#include <Adafruit_ILI9341.h>   // include Adafruit ILI9341 TFT library
 
#define TFT_CS    10      // TFT CS  pin is connected to arduino pin 8
#define TFT_RST   4      // TFT RST pin is connected to arduino pin 9
#define TFT_DC    2
Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);
 
#include <DHT.h>
#define DHTPIN 3 
#define DHTTYPE DHT22 // DHT 11 
DHT dht(DHTPIN, DHTTYPE);

#include "RTClib.h"

RTC_DS1307 rtc;


char Temp[6]="12345";
char Hum[6]="12345";
char Date[11],Time[10];
uint16_t RecCount,OldRecCount;
float OldHum,OldTemp;
uint8_t PastDay;
void setup() {
  // put your setup code here, to run once:
Serial.begin(115200);

  dht.begin();
  tft.begin();
  unsigned long start;
  int           x, y, w = tft.width(), h = tft.height();//w=240, h=320
  tft.fillScreen(ILI9341_DARKGREY);
  tft.setRotation(1);
  tft.drawLine(0, 120, h, 120, ILI9341_RED);
  tft.fillRect(0, 120, h, 5, ILI9341_RED);
  tft.drawRect(0, 0, h, 50, ILI9341_YELLOW);
  tft.drawRect(4, 4, h-4, 44, ILI9341_YELLOW);
  ///tft.drawRect(2, 2, h-2, 48, ILI9341_YELLOW);
  //tft.drawRect(3, 3, h-3, 40, ILI9341_YELLOW);
  //tft.drawRect(4, 4, 310, 50-4, ILI9341_YELLOW);
  tft.setCursor(30, 10);
  tft.setTextColor(ILI9341_WHITE);  tft.setTextSize(4);
  tft.print("Data Logger");
  tft.setCursor(0, 60);
  tft.setTextColor(ILI9341_GREEN);  tft.setTextSize(2);
  tft.print(" Record No : ");
  tft.setCursor(0, 80);
  
  //tft.setTextColor(ILI9341_BLUE);  tft.setTextSize(2);
  tft.println(" Date: ");
  tft.setCursor(0, 100);tft.print(" Time: ");
  tft.setTextSize(3);
  tft.setCursor(10, 140);tft.print("Temperture: ");
  tft.setCursor(10,180);tft.print("Humidity: ");
//start = micros();
 if (! rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }
    
  RecCount=0;
}

void loop() {
  

DateTime now = rtc.now();


float h = dht.readHumidity();
float t = dht.readTemperature();
if (isnan(t) || isnan(h)) {
    Serial.println("Failed to read from DHT");
  } else {
    Serial.print("Humidity: "); 
    Serial.print(Hum);
    Serial.print(" %\t");
    Serial.print("Temperature: "); 
    //Serial.print(t);
    Serial.print(Temp);
    Serial.println(" *C");
  }
Serial.print(PastDay);Serial.print(" : "),Serial.println(now.day());

//CurDay=now.day();
tft.setTextColor(ILI9341_DARKGREY);  tft.setTextSize(2);
tft.setCursor(80, 100);
tft.print(Time);
sprintf(Date,"%02d/%02d/%4d",now.day(),now.month(),now.year()); 
sprintf(Time,"%02d:%02d:%02d",now.hour(),now.minute(),now.second()); 
tft.setTextColor(ILI9341_ORANGE);  tft.setTextSize(2);
tft.setCursor(80, 100);
tft.print(Time);
if(PastDay!=now.day()){
  tft.setTextColor(ILI9341_DARKGREY);  tft.setTextSize(2);
  tft.setCursor(80, 80);tft.setTextColor(ILI9341_NAVY);
  tft.print(Date);
  PastDay=now.day();
}
 




 //Serial.println("Start.....");
// check if returns are valid, if they are NaN (not a number) then something went wrong!

      
    tft.setCursor(150, 60);
    tft.setTextColor(ILI9341_YELLOW); tft.setTextSize(2);
    tft.println(RecCount);
    if(OldTemp!=t){
      tft.setCursor(210, 140);tft.setTextSize(3);
      tft.setTextColor(ILI9341_DARKGREY); tft.println(Temp);
      dtostrf(t,5,2,Temp);
      tft.setCursor(210, 140);tft.setTextSize(3);
      tft.setTextColor(ILI9341_CYAN); tft.println(Temp);
      OldTemp=t;
    }

    if(OldHum!=h){
      tft.setCursor(180, 180);tft.setTextSize(3);
      tft.setTextColor(ILI9341_DARKGREY); tft.println(Hum);
      dtostrf(h,5,2,Hum);
      tft.setCursor(180, 180);tft.setTextSize(3);
      tft.setTextColor(ILI9341_MAROON ); tft.println(Hum);
      OldHum=h;
    }
    //sprintf(Temp,"%4f",t);
    
    //Serial.print(Date);Serial.print("    ");Serial.println(Time);

  
  delay(1000);
    tft.setCursor(150, 60);
    tft.setTextColor(ILI9341_DARKGREY); tft.setTextSize(2);
    tft.println(RecCount);
    RecCount++;
  
}