#include "DHT.h"

#define DHTPIN  15
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);
  pinMode(27, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(14, OUTPUT);
  Serial.println(F("DHTxx test!")); 

  dht.begin();
}

void loop() 
{
  
 float t = dht.readTemperature();

 Serial.print(F("% Temperature: "));
 Serial.println(t);

 if (t < 20)
 {
  digitalWrite(12, LOW);
  digitalWrite(27, HIGH);
  digitalWrite(14, LOW);
 }
else

 if (t < 25)
 {
  digitalWrite(14, HIGH);
  digitalWrite(27, LOW);
  digitalWrite(12, LOW);
 }
 else
 {
  digitalWrite(12, HIGH);
  digitalWrite(27, LOW);
  digitalWrite(14, LOW);
 }
}