#include <DHT.h>
unsigned long previousMillis = 0;
unsigned long currentMillis = 0;
const int dhtPin = 14;
DHT dht(dhtPin, DHT22);
int ledPin = 18;
int buzzerPin = 5;
int interval = 2000;
void setup() {
  Serial.begin(115200);
  Serial.println("Hello ESP32!");
  dht.begin();
  pinMode(ledPin, OUTPUT);
  pinMode(buzzerPin, OUTPUT);

}
void loop() 
{
  currentMillis = millis();
  if (currentMillis - previousMillis >= 2000)
  {
    previousMillis = currentMillis;

    float humidity = dht.readHumidity();
    float temperature = dht.readTemperature();
    if (temperature < 30) {
      digitalWrite(ledPin, HIGH);
      // tone(buzzerPin, 2000, 200);
    }
    else {
      digitalWrite(ledPin, LOW);
      // tone(buzzerPin, 2000, 200);


    }
    if (humidity > 50) {
      digitalWrite(buzzerPin, HIGH);
      //noTone(buzzerPin);
    }
    else
    {
      digitalWrite(buzzerPin, LOW);

    }
 }
}