#include <Adafruit_Sensor.h>
#include <DHT.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

#define DHTPIN 2      // Pin where your DHT sensor is connected.
#define DHTTYPE DHT22 // Type of DHT sensor.

LiquidCrystal_I2C lcd(0x27, 16, 2);

DHT dht(DHTPIN, DHTTYPE);

int ledY = 3;
int ledO = 4;
int ledDG = 5;
int ledP = 6;
int ledR = 7;

void setup() {
  Wire.begin();  // Initialize the I2C communication for the LCD
  dht.begin();

  lcd.init();       // Initialize the LCD
  lcd.backlight();  // Turn on the backlight
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Initializing...");

  pinMode(ledY, OUTPUT);
  pinMode(ledO, OUTPUT);
  pinMode(ledDG, OUTPUT);
  pinMode(ledP, OUTPUT);
  pinMode(ledR, OUTPUT);
}

void loop() {
  delay(5000); // Delay for 2 seconds to prevent rapid readings

  float humidity = dht.readHumidity();
  float temperature = dht.readTemperature();

  if (isnan(temperature) || isnan(humidity)) {
    Serial.println("Failed to read data from DHT sensor!");
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Sensor Error");
    return;
  }

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(temperature, 1);  // Display temperature with one decimal place
  lcd.print(" ");
  lcd.write(0xDF);  // Display the degree symbol
  lcd.print("C");

  lcd.setCursor(0, 1);
  lcd.print("Humidity: ");
  lcd.print(humidity, 1);  // Display humidity with one decimal place
  lcd.print(" %");
  delay(5000);

  if (temperature <= 0) {
    lcd.setCursor(0, 0);
    lcd.print("Temp: Freezing   ");
  } else if (temperature <= 16) {
    lcd.setCursor(0, 0);
    lcd.print("Temp: Very Cold  ");
  } else if (temperature <= 25) {
    lcd.setCursor(0, 0);
    lcd.print("Temp: Normal     ");
  } else if (temperature <= 37) {
    lcd.setCursor(0, 0);
    lcd.print("Temp: Hot         ");
  } else {
    lcd.setCursor(0, 0);
    lcd.print("Temp: Very Hot  ");
  }

  if (humidity <= 20) {
    lcd.setCursor(0, 1);
    lcd.print("Humidity: Dry    ");
  } else if (humidity <= 40) {
    lcd.setCursor(0, 1);
    lcd.print("Humidity: Normal ");
  } else if (humidity <= 60) {
    lcd.setCursor(0, 1);
    lcd.print("Humidity: Comfort");
  } else {
    lcd.setCursor(0, 1);
    lcd.print("Humidity: Humid  ");
  }

  delay(2000); // Adjust the delay based on your preference
}