Reading DHT22 (or DHT11) with Arduino

#include<DHT.h>      // Including library for dht

#define dht_dpin 12       //digital pin, that DHT's data line is connected
#define DHTTYPE DHT22     //When using DHT11, put here DHT11 instead of DHT22
DHT dht(12,DHT22);        //Not sure, what this line excatly does, but same aplies here as above

//int temp;               //Use for DHT11 instead of float
float temp;               //Use float for showing decimals of the temperature reading. I recommend using for DHT22, no point to use for DHT11

//int hum;                //Use for DHT11 instead of float
float hum;                //Use float for showing decimals of the humidity reading. I recommend using for DHT22, no point to use for DHT11

void setup() {
  
Serial. begin(9600);      //Initiate serial monitor
 dht.begin();             //Initiate DHT sensor
 
}

void loop() {

//delay(1000);                          //wait a sec (recommended for DHT11)  
delay(500);                           //wait a 0,5 sec (recommended for DHT22)

temp=dht.readTemperature(false);       //Read temperature of DHT and store it in to variable (temp). FALSE reads in celsius, leave empty for farenheit
hum=dht.readHumidity();               //Read humidity of DHTand store it iin variable (hum).

Serial.print("Temperature: ");        //Print text "Temperature: " in to serial monitor
Serial.println(temp);                 //Print variable (temperature value) in to serial port. ln for line break

Serial.print("Humidity: ");           //Print text "Humidity: " in to serial monitor
Serial.println(hum);                  //Print variable (temperature value) in to serial port. ln for line break
Serial.println(" ");                  //print empty line in to serial monitor
    
  delay(2500);                        //optional delay, not really any point reading the sensor more than once every 3 seconds
}