#include <DHT.h>

int DHTpin = 2;    
int LDR = A0;   
int BUZZER = 4; 
int LED = 9; 

DHT dht(DHTpin, DHT22);

void setup() {
  Serial.begin(9600);
  pinMode(BUZZER, OUTPUT);
  pinMode(LED, OUTPUT);
  pinMode(LDR,INPUT);
  dht.begin();
}

void loop() {
  int lightValue = analogRead(LDR);

  if (lightValue < 500) {
      float temperature = dht.readTemperature();
    float humidity = dht.readHumidity();
    Serial.println(temperature);
    Serial.println(humidity);

    if (temperature > 30) {
      digitalWrite(BUZZER, HIGH);
    } else {
      digitalWrite(BUZZER, LOW);
    }

    if (humidity > 70) {
      digitalWrite(LED, HIGH);
    } else {
      digitalWrite(LED, LOW);
    }
  }   else {
      digitalWrite(BUZZER, LOW);
      digitalWrite(LED, LOW);
  }

  delay(2000); 
  
}