#include <DHT.h>

DHT sensor(A0,DHT22);

#define lvermelho 2
#define lverde 1

void setup() {
  // put your setup code here, to run once:
  pinMode(lvermelho, OUTPUT);
  pinMode(lverde, OUTPUT);
  Serial.begin(9600);
  sensor.begin();
}

void loop() {

  int t = sensor.readTemperature();
  Serial.println(t);
  delay(1000);
  if( t < 18){
    digitalWrite(lvermelho, LOW);
    digitalWrite(lverde, HIGH);
  }else{
    digitalWrite(lvermelho, HIGH);
    digitalWrite(lverde, LOW);
  }
}