#include <DHT.h>
DHT dht(27, DHT22);

int ledR = 4;
int ledB = 16;
int buzzer = 0;

void setup() {
  Serial.begin(115200);
  Serial.println("Hello, ESP32!");
  dht.begin();
  pinMode(ledR, OUTPUT);
  pinMode(ledB, OUTPUT);

}

void loop() {
  float temp = dht.readTemperature();
  float hum = dht.readHumidity();

  if(temp >= 40){
    digitalWrite(ledR, HIGH);
    digitalWrite(ledR, LOW);
    tone(buzzer, 500);
  }else if(temp < 40){
    digitalWrite(ledR, LOW);
    digitalWrite(ledR, HIGH);
    noTone(buzzer);
  }
    if(hum >= 40){
    digitalWrite(ledB, HIGH);
    digitalWrite(ledB, LOW);
  }else if(hum < 40){
    digitalWrite(ledB, LOW);
    digitalWrite(ledB, HIGH);
  }

  Serial.print("Temperature : ");
  Serial.println(temp);
  Serial.print("Humidity : ");
  Serial.println(hum);
  Serial.println("============");
  delay(3000);

}