#include <dht.h>

dht DHT;

#define DHT22_PIN 2
#define ledPin 4

void setup() {
  pinMode(ledPin, OUTPUT);
}

void loop() {
  int reading = analogRead(A0);
  int hodnota = map(reading,0,1023,-40,80);
  //DHT.read(DHT22_PIN);
  DHT.read22(DHT22_PIN);
  if(DHT.temperature >= hodnota){
    digitalWrite(ledPin, HIGH);
  }
  else{
    digitalWrite(ledPin, LOW);
  }
}