NODE MCU TEMPERATURE

#include "DHT.h"
 
#define DHTPIN 2  // GPIO Pin D4  
#define DHTTYPE DHT11
 
// DHT Class dht Object with parameters - assigned Pin and DHt Type
DHT dht(DHTPIN, DHTTYPE);
void setup() {
  // Begin - start communicating with monitor - with Baud rate 9600 serial commn
  Serial.begin(9600);
 
  // Display test message 
  Serial.println(F("DHTxx test!"));
  dht.begin();
}
 
void loop() {
  
// 2000 ms - 2 Sec gap for display 
  delay(2000);
 
  // Read humidity and put in h
  float h = dht.readHumidity();
    // read temperature and put in t in clecius , if nothing in brackets default -False indicating Celcius
  float t = dht.readTemperature();
  // Read temperature as Fahrenheit (isFahrenheit = true)
  //read temperature and put in f in clecius , if true in brackets default -False is overwritten  indicating farenheit
  float f = dht.readTemperature(true);
 
  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t) || isnan(f)) {
    Serial.println(F("Failed to read from DHT sensor!"));
    return;
  }
 
  Serial.print(F("Humidity: "));
  Serial.print(h);
  Serial.print(F("%  Temperature: "));
  Serial.print(t);
  Serial.print(F("°C "));
  Serial.print(f);
  Serial.print(F("°F "));
 
  Serial.println(" ");
}