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

#define DHT_PIN 2     
#define DHT_TYPE DHT22  // Type of the DHT sensor
#define TEMP_LED_PIN 12 // Pin connected to the LED for temperature control
#define LDR_LED_PIN 13  // Pin connected to the LED for light level control
#define LDR_PIN 34      // Pin connected to the LDR

DHT dht(DHT_PIN, DHT_TYPE);

LiquidCrystal_I2C lcd(0x27, 16, 2);  // I2C address 0x27, 16 columns, 2 rows

void setup() {
  Serial.begin(115200);
  dht.begin();

  lcd.init();      // Initialize the LCD
  lcd.begin(16, 2);
  lcd.backlight();  // Uncomment if your LCD has backlight control

  pinMode(TEMP_LED_PIN, OUTPUT);
  pinMode(LDR_LED_PIN, OUTPUT);
  pinMode(LDR_PIN, INPUT);
}

void loop() {
  delay(2000);  // Wait for 2 seconds between readings

  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  int lightLevel = analogRead(LDR_PIN);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(temperature);
  lcd.print(" C");

  lcd.setCursor(0, 1);
  lcd.print("Humidity: ");
  lcd.print(humidity);
  lcd.print(" %");

  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print(" °C, Humidity: ");
  Serial.print(humidity);
  Serial.print(" %, Light Level: ");
  Serial.println(lightLevel);

  // Control the LEDs based on the temperature and light level
  if (temperature > 34.0) {
    digitalWrite(TEMP_LED_PIN, HIGH);  // Turn on the temperature control LED
  } else {
    digitalWrite(TEMP_LED_PIN, LOW);   // Turn off the temperature control LED
  }

  if (lightLevel > 1300) {
    digitalWrite(LDR_LED_PIN, HIGH);  // Turn on the light level control LED
  } else {
    digitalWrite(LDR_LED_PIN, LOW);   // Turn off the light level control LED
  }
}