#include <Wire.h>
#include <RTClib.h>
#include <DHT.h>
#include <LiquidCrystal.h>

#define DHTPIN1 2 // Pin where the first DHT sensor is connected
#define DHTPIN2 3 // Pin where the second DHT sensor is connected
#define DHTTYPE DHT22 // Both are DHT22 sensors

RTC_DS1307 rtc;
DHT dht1(DHTPIN1, DHTTYPE);
DHT dht2(DHTPIN2, DHTTYPE);
LiquidCrystal lcd(12, 11, 10, 9, 8, 7); // Pins for the LCD

void setup() {
  Serial.begin(9600);
  lcd.begin(20, 4); // Initialize the LCD
  dht1.begin(); // Initialize the first DHT sensor
  dht2.begin(); // Initialize the second DHT sensor
  if (!rtc.begin()) {
    Serial.println("Couldn't find RTC");
    while (1);
  }
  if (!rtc.isrunning()) {
    Serial.println("RTC is NOT running, let's set the time!");
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__))); // Set the RTC to the date & time this sketch was compiled
  }
}

void loop() {
  DateTime now = rtc.now(); // Get current time
  float h1 = dht1.readHumidity(); // Read humidity from the first sensor
  float t1C = dht1.readTemperature(); // Read temperature from the first sensor in Celsius
  float t1F = t1C * 1.8 + 32; // Convert Celsius to Fahrenheit
  float h2 = dht2.readHumidity(); // Read humidity from the second sensor
  float t2C = dht2.readTemperature(); // Read temperature from the second sensor in Celsius
  float t2F = t2C * 1.8 + 32; // Convert Celsius to Fahrenheit

  if (isnan(h1) || isnan(t1C) || isnan(h2) || isnan(t2C)) {
    Serial.println("Failed to read from DHT sensor(s)!");
    return;
  }

  lcd.clear();
  lcd.setCursor(5, 0); // Display the date and time
  lcd.print(now.year(), DEC);
  lcd.print('/');
  lcd.print(now.month(), DEC);
  lcd.print('/');
  lcd.print(now.day(), DEC);
  lcd.setCursor(7, 1);
  lcd.print(now.hour(), DEC);
  lcd.print(':');
  lcd.print(now.minute(), DEC);
  

  delay(2000);

  lcd.clear();
  lcd.setCursor(0, 0); // Display temperature and humidity from the first sensor
  lcd.print("T1: ");
  lcd.print(t1F);
   lcd.print(" F");
   lcd.setCursor(0, 1);
  lcd.print("H1: ");
  lcd.print(h1);
  lcd.print(" %");
  
  delay(5000);
  
  lcd.clear();
  lcd.setCursor(0, 0); // Display temperature and humidity from the second sensor
  lcd.print("T2: ");
  lcd.print(t2F);
   lcd.print(" F");
   lcd.setCursor(0, 1);
  lcd.print("H2: ");
  lcd.print(h2);
  lcd.print(" %");

  delay(5000);
}