float Temperatura = 0;
float Umidade = 0;
int Luminosidade = 0;
String Dia_noite = "Indefinido";
float Temperatura_DS18 = 0;
boolean fre = 0;
unsigned int Comando_controle = 0;
byte primeiro = 0;
byte Ultimo_comando = 0;

void interrupt_0(){
}

#include "DHT.h"

DHT dht_4(4,DHT22);

#include <OneWire.h>
#include <DallasTemperature.h>
OneWire oneWireBus(7);
DallasTemperature sensors(&oneWireBus);

 #include "U8glib.h"
  U8GLIB_SSD1306_128X64 u8g(U8G_I2C_OPT_NONE|U8G_I2C_OPT_DEV_0);

#include <IRremote.h>
 IRsend irsend;

IRrecv ir_rx(6);
decode_results ir_rx_results;

unsigned long fnc_ir_rx_decode()
 {
  bool decoded=false;
  if( ir_rx.decode(&ir_rx_results))
  {
    decoded=true;
    ir_rx.resume();
  }
  if(decoded)
    return ir_rx_results.value;
  else
    return 0;
 }


void my_2() {
  Temperatura = dht_4.readTemperature();
  Umidade = dht_4.readHumidity();
  sensors.requestTemperatures();
   Temperatura_DS18 = sensors.getTempCByIndex(0);
  if (Temperatura <= 20) {
     analogWrite(9, 0);
     analogWrite(10, 0);
     analogWrite(11, 255);
  }
  if (Temperatura > 20 && Temperatura <= 25) {
     analogWrite(9, 0);
     analogWrite(10, 255);
     analogWrite(11, 0);
  }
  if (Temperatura > 25 && Temperatura <= 30) {
     analogWrite(9, 255);
     analogWrite(10, 255);
     analogWrite(11, 0);
  }
  if (Temperatura > 30 && Temperatura <= 40) {
     analogWrite(9, 255);
     analogWrite(10, 80);
     analogWrite(11, 0);
  }
  if (Temperatura > 40) {
     analogWrite(9, 255);
     analogWrite(10, 0);
     analogWrite(11, 0);
  }
}

void my_1() {
  while (digitalRead(2) == 0){
    pinMode(13, OUTPUT);
     digitalWrite(13, 1);
    pinMode(12, OUTPUT);
     digitalWrite(12, 0);
    delay(analogRead(A0));
    pinMode(13, OUTPUT);
     digitalWrite(13, 0);
    pinMode(12, OUTPUT);
     digitalWrite(12, 1);
    delay(analogRead(A0));
  }
  pinMode(13, OUTPUT);
   digitalWrite(13, 0);
  pinMode(12, OUTPUT);
   digitalWrite(12, 0);
}

void my_3() {
  Luminosidade = analogRead(A1);
  if (Luminosidade >= 980) {
    Dia_noite = "Noite";
  } else {
    Dia_noite = "Dia";
  }
}

void my_4() {
  while (digitalRead(3) == 0){
    for (int fre=150; fre<=1800; fre=fre+1) {
      tone(5,fre,10);
       delay(10);
      delay(1);
      pinMode(13, OUTPUT);
       digitalWrite(13, 1);
      pinMode(12, OUTPUT);
       digitalWrite(12, 0);
    }
    for (int fre=1800; fre>=150; fre=fre-1) {
      tone(5,fre,10);
       delay(10);
      delay(1);
      pinMode(13, OUTPUT);
       digitalWrite(13, 0);
      pinMode(12, OUTPUT);
       digitalWrite(12, 1);
    }
  }
}


void setup() {
  attachInterrupt(digitalPinToInterrupt(0),interrupt_0,LOW);
  dht_4.begin();

  sensors.begin();

  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(2, INPUT);
  pinMode(3, INPUT);
  pinMode(5, OUTPUT);


  ir_rx.enableIRIn();


}

void loop() {
  Temperatura <= 20;

    if ((unsigned long)fnc_ir_rx_decode() != 0) {
          u8g.firstPage();
        do {
              u8g.setFont(u8g_font_6x10);
           u8g.setPrintPos(0, 10);
           u8g.print("Comando IR:");
                u8g.setFont(u8g_font_6x10);
           u8g.setPrintPos(0, 20);
           u8g.print((unsigned long)fnc_ir_rx_decode());
            } while(    u8g.nextPage()   );
    }

}