#include "DHTesp.h" 
int a=12;
DHTesp dhtSensor; 
TempAndHumidity data; 
const int DHT_PIN = 15; 
void setup() { 
Serial.begin(115200); 
dhtSensor.setup(DHT_PIN, DHTesp::DHT22); 
pinMode(a, OUTPUT);
} 
void loop() { 
 data = dhtSensor.getTempAndHumidity(); 
Serial.println("Humi: " + String(data.humidity, 1)); 
Serial.println("Temp: " + String(data.temperature, 2));
 Serial.println("-----------"); 
if(data.temperature<=40)
{
  digitalWrite(a,HIGH);
}
else{
  digitalWrite(a,LOW);

}

}