#include <DHT.h>

#define TempPino A3
#define Tipo DHT22

DHT sensor (TempPino, Tipo);


void setup()
{
  sensor.begin();
  Serial.begin(9600);
  pinMode(A3, INPUT);
  pinMode(5, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(3, OUTPUT);
}


void loop() {
float h = sensor.readHumidity();
float t = sensor.readTemperature();
Serial.print("Temperatura: ");
Serial.println(t);
String H = String(h,1); //caso queira mostrar decimais subtituia o (zero)
String T = String(t,1);
delay(300);
if (t < 10){
  digitalWrite(5, LOW);
  digitalWrite(4, LOW);
  digitalWrite(3, LOW);
} 
if (t < 20){
  digitalWrite(5, HIGH);
  digitalWrite(4, LOW);
  digitalWrite(3, LOW);
}
if (t < 30){
  digitalWrite(5, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(3, LOW);
} 
if (t < 40){
  digitalWrite(5, HIGH);
  digitalWrite(4, HIGH);
  digitalWrite(3, HIGH);
}
}