#include <ArduinoJson.h>
#include <Adafruit_GFX.h>
#include <Adafruit_ILI9341.h>
#include "DHT.h"
//#include <XPT2046_Touchscreen.h> //Touchscreen driver

#include "RTClib.h"

RTC_DS3231 rtc;
#define DHTPIN 6 
#define DHTTYPE DHT22 
DHT dht(DHTPIN, DHTTYPE); 
char daysOfTheWeek[7][12] = {"Sonntag", "Montag", "Dienstag", "Mittwoch", "Donnerstag", "Freitag", "Samstag"};
//pins for touchscreen
/*
#define TOUCH_CS  12
#define TOUCH_IRQ 13
XPT2046_Touchscreen ts(TOUCH_CS, TOUCH_CS);
*/
  //pins for display
  #define TFT_CS   17
  #define TFT_DC   15
  #define TFT_RST  14

Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC, TFT_RST);




 
void setup() {
  Serial.begin(9600);
  
  tft.begin();
  tft.fillScreen(ILI9341_BLACK);
  //ts.begin();
  //ts.setRotation(1);
  rtc.begin();
  dht.begin();  
   
  }
 
 
void loop() {    
  /*
  if (ts.touched()) {
  TS_Point p = ts.getPoint();
  Serial.print("x = ");
  Serial.print(p.x);
  Serial.print(", y = ");
  Serial.println(p.y);
  }   */
    
    DateTime now = rtc.now();

  float pfTemp = dht.readTemperature();
  float pfHum = dht.readHumidity();  
  float a = 17.67;
  float b = 243.5;
  float alpha = (a * pfTemp)/(b + pfTemp) + log(pfHum/100);
  float pfDew = (b * alpha)/(a - alpha);

    tft.setCursor(50, 20);
  
  tft.setTextColor(ILI9341_WHITE, ILI9341_BLACK); tft.setTextSize(4); 
  tft.print(    pfTemp);
  tft.setTextColor(ILI9341_RED, ILI9341_BLACK);   tft.setTextSize(4);
  tft.println(" C");
 
  tft.setTextColor(ILI9341_YELLOW); tft.setTextSize(2);
  tft.println("    Temperatur\n");
    tft.setCursor(50, 90);
  tft.setTextColor(ILI9341_WHITE, ILI9341_BLACK); tft.setTextSize(4);
  tft.print(     pfHum);
  tft.setTextColor(ILI9341_RED, ILI9341_BLACK);   tft.setTextSize(4);
  tft.println(" %");
  tft.setTextColor(ILI9341_GREEN); tft.setTextSize(2);
  tft.println("    L-Feuchte\n");
  tft.setCursor(20, 160);
  tft.setTextColor(ILI9341_WHITE, ILI9341_BLACK); tft.setTextSize(4);
  tft.print(now.hour( ), DEC);
  tft.setTextColor(ILI9341_RED,  ILI9341_BLACK);  tft.setTextSize(4);
  tft.print(".");
  tft.setTextColor(ILI9341_WHITE, ILI9341_BLACK); tft.setTextSize(4);
  tft.print( now.minute( ), DEC); 
  tft.setTextColor(ILI9341_RED,  ILI9341_BLACK);  tft.setTextSize(4);
  tft.print("."); 
  tft.setTextColor(ILI9341_WHITE, ILI9341_BLACK); tft.setTextSize(4);
  tft.print( now.second( ), DEC);
  /*
  tft.setTextColor(ILI9341_BLACK);  tft.setTextSize(4); //XXXXXXXXXXXXLeerzeichenXXX
  tft.print("99999999");  */   
  tft.setCursor(15, 210);
  tft.setTextColor(ILI9341_CYAN, ILI9341_BLACK); tft.setTextSize(3);
  tft.print(daysOfTheWeek[now.dayOfTheWeek()]);
  /*
  tft.setTextColor(ILI9341_BLACK); tft.setTextSize(4);  //XXXXXXXXXXXXLeerzeichenXXX
  tft.print("gggggggg");  */
  tft.setTextColor(ILI9341_RED, ILI9341_BLACK);  tft.setTextSize(3);
  tft.setCursor(35, 260);
  tft.setTextColor(ILI9341_BLUE,ILI9341_BLACK);  tft.setTextSize(3);
  tft.print(  now.day(), DEC);
  tft.setTextColor(ILI9341_RED, ILI9341_BLACK);  tft.setTextSize(3);
  tft.print(".");
  tft.setTextColor(ILI9341_BLUE, ILI9341_BLACK); tft.setTextSize(3);
  tft.print(  now.month(), DEC);
  tft.setTextColor(ILI9341_RED, ILI9341_BLACK);  tft.setTextSize(3);
  tft.print(".");
  tft.setTextColor(ILI9341_BLUE, ILI9341_BLACK); tft.setTextSize(3);
  tft.print(  now.year(), DEC);
  tft.setTextColor(ILI9341_BLACK); tft.setTextSize(4);  //XXXXXXXXXXXXLeerzeichenXXX
  tft.print("444444");  

 delay(1000);
 
}