#include <Adafruit_Sensor.h>
#include <Adafruit_BMP280.h>
#include <DHT.h>
#include <Wire.h>
//#include <LiquidCrystal_I2C.h>***********
#include <LiquidCrystal.h>

#define BMP_SCK  (13)
#define BMP_MISO (12)
#define BMP_MOSI (11)
#define BMP_CS   (10)
// Pin for DHT22 sensor
#define DHTPIN 7
#define DHTTYPE DHT22

// Initialize DHT sensor
DHT dht(DHTPIN, DHTTYPE);

//Adafruit_BMP280 bmp ;
Adafruit_BMP280 bmp(BMP_CS, BMP_MOSI, BMP_MISO,  BMP_SCK);

// Initialize LCD
//LiquidCrystal_I2C lcd(0x27, 16, 2);  // Change the address if needed
//LiquidCrystal lcd(7, 6, 5, 4, 3, 2);
LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

const int buttonPin = 6;
bool lastButtonState = false;
bool buttonState = false;
unsigned long debounceDuration = 50; // millis
unsigned long lastDebounceTime = 0;

int count =0 ;

void setup() {

  // Initialize serial communication
  Serial.begin(9600);
  dht.begin();

  if (!bmp.begin(0x76)) {
    Serial.println("Could not find a valid BMP280 sensor, check wiring!");
    while (1);
  }

  // Initialize DHT sensor
  lcd.begin(16,2);
  //pinMode ( buttonPin , INPUT ) ;
  pinMode(buttonPin, INPUT_PULLUP);

  lcd . print (" Smart Weather ") ;
  lcd . setCursor (0, 1) ;
  lcd . print (" Station ") ;
  delay (2000) ;
  lcd . clear () ;
  lcd . print (" Initializing ...") ;
  delay (1000) ;
  lcd . clear () ;
  lcd . print (" Press button to") ;
  lcd . setCursor (0, 1) ;
  lcd . print (" cycle data ") ;
  // Initialize LCD
  //lcd.init();****************
  //lcd.backlight();************

  // Print initial message on LCD
 // lcd.setCursor(0, 0);
 // lcd.print("Temperature:");
 // lcd.setCursor(0, 1);
 // lcd.print("Humidity:");
}

void loop() {

 /* if (millis() - lastTimeButtonStateChanged > debounceDuration) {
      byte buttonState = digitalRead(buttonPin);
      if (buttonState != lastButtonState) {
      lastTimeButtonStateChanged = millis();
      lastButtonState = buttonState;
      if (buttonState == LOW) {
        // do an action, for example print on Serial
        display();
      }
    }
  }
  */
 int reading = digitalRead (buttonPin) ;

 if ( reading != lastButtonState ) {
  lastDebounceTime = millis () ;
 }

 if (( millis () - lastDebounceTime ) > debounceDuration ) {
  if ( reading != buttonState ) {
    buttonState = reading ;
      if ( buttonState == LOW ) {
        count = count + 1 ;
        display() ;
      }
  }
 }
  lastButtonState = reading ;
}


void display(){
         // Read temperature and humidity data from DHT sensor
  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();

       // Read temperature and humidity data from bmp sensor
  float temperature1 = bmp.readTemperature();
  float Pressure = bmp.readPressure() / 100.0F;

    if (count == 1 ){
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Temperature:");

      // Display temperature on serial monitor
      Serial.print("Temperature: ");
      Serial.print(temperature);

      lcd.setCursor(12, 0);
      lcd.print(temperature);

      // Wait for 1 second
      delay(1000);
    }
      if(count == 2){
        lcd.clear();
        lcd.setCursor(0, 1);
        lcd.print("Humidity:");
        // Display Humidity on serial monitor
        Serial.print(" °C, Humidity: ");
        Serial.print(humidity);
        Serial.println(" %");

        // Display Humidity on LCD
        lcd.setCursor(12, 1);
        lcd.print(humidity);

        // Wait for 1 second
        delay(1000);
    }
    if(count == 3){
      //lcd.clear(); 
      lcd.clear();
      lcd.setCursor(0, 0);
      lcd.print("Temperature:");
      Serial.print("Temperature = ");
      Serial.print(temperature1);
      Serial.println(" *C");

      lcd.setCursor(12, 0);
      lcd.print(temperature1);
          // Wait for 1 second
      delay(1000);

    }


    if(count == 4){
      lcd.clear();
      lcd.setCursor(0, 1);
      lcd.print("Pressure:");
      Serial.print("Pressure = ");
      Serial.print(Pressure);
      Serial.println(" hPa");
      lcd.setCursor(12, 1);
      lcd.print(Pressure);
                  // Wait for 1 second
      delay(1000);
      count = 0;
    }
}