#include <DHTesp.h>

//declare variable buzzer in pin 02
const int DHT_PIN = 15;
int buzzer = 2;
//declare
DHTesp dht;

void setup() {
  //define  pin mode of pin 2
  dht.setup(DHT_PIN, DHTesp::DHT22);
  pinMode(buzzer, OUTPUT);
}

void loop() {
  TempAndHumidity data = dht.getTempAndHumidity();
  if(data.humidity >= 50){
  //sing a tone in buzzer
  tone(buzzer, 30);
  delay(1000);
  noTone(buzzer);
  delay(1000);
  }
 
}