#include <DHT.h>
#define dhtpin 10
#define DHTTYPE DHT22
#define led 5

DHT dht(dhtpin,DHTTYPE);

void setup() {
  Serial.begin(9600);
  dht.begin();
  pinMode(led, OUTPUT);

  // put your setup code here, to run once:

}

void loop() {
  // put your main code here, to run repeatedly:
float t = dht.readTemperature();
float h = dht.readHumidity();
float f = dht.readTemperature(true);
if(t > 30){
  digitalWrite(led, HIGH);
}else{
  digitalWrite(led,LOW);
}
}