Sistem odası Sıcaklık ve Nem Takip (Arduino)

#include <SPI.h>
#include <Ethernet.h>
#include "DHT.h"
#include <LiquidCrystal_I2C.h> 
#include <Wire.h> 

//Constants
#define DHTPIN 2     // what pin we're connected to
#define DHTTYPE DHT22   // DHT 22  (AM2302)   
LiquidCrystal_I2C lcd(0x27,16,2);  
DHT dht(DHTPIN, DHTTYPE);
//------------------------------
// Ethernet Bağlantı Kodları
byte mac[] = { 0x90, 0xA2, 0xDA, 0x00, 0x59, 0x62 };   //mac oluşturan sitelerden oluşturabilirsiniz
// change network settings to yours
IPAddress ip( 192, 168, 1, 3 );  //ardunio cihaz icin ip adresi  
IPAddress gateway( 192, 168, 1, 1 ); //gw ip adresiniz
IPAddress subnet( 255, 255, 255, 0 ); //subnet
char server[] = "smtp server ip"; //SMTP Mail Server
int port = 587;//SMTP PORT
EthernetClient client;
//--------------------------------
int buzzerPin=7;

void setup()
{
//Lcd ve İp kodları
Serial.begin(9600); 
dht.begin();
pinMode(buzzerPin,OUTPUT);
pinMode(4,OUTPUT);
digitalWrite(4,HIGH);
Ethernet.begin(mac, ip, gateway, gateway, subnet);
lcd.init();                      // initialize the lcd 
// Print a message to the LCD.
lcd.backlight();
lcd.setBacklight(HIGH);
lcd.clear();
lcd.print("ANTIKKKAPI OTS");
delay(2000);
lcd.clear();
lcd.print("HOSGELDINIZ");
delay(1000);
lcd.clear();
// delay(2000);
// Serial.println(F("Ready. Press 'e' to send."));
//-------------------------------------------------
}
//tanımlamalar
 float h;
 float t;
 bool messageSentBool;
 bool messageSentBool2;
 bool messageSentBool3;
 bool mailgonder=false;
 //---------------------------
void loop()
{
 // Wait a few seconds between measurements.
  delay(2000);

  // Reading temperature or humidity takes about 250 milliseconds!
  // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)
  h = dht.readHumidity();
  // Read temperature as Celsius
  t = dht.readTemperature();
  
  // Check if any reads failed and exit early (to try again).
  if (isnan(h) || isnan(t)) {
    lcd.clear();
    lcd.print("DHT HATA!");
    return;
  }
 //Print temp and humidity values to LCD
    lcd.setCursor(0,0);
    lcd.print("NEM: ");
    lcd.print(h);
    lcd.print("%");
    lcd.setCursor(0,1);
    lcd.print("SICAKLIK: "); 
    lcd.print(t);
    lcd.println("C");

//----------------------
   delay(2000); //Delay 2 sec between temperature/humidity check.
//-----------------------------------

//Nem ve Sıcaklık yüksekse mail gönder
  if(h > 60 && !messageSentBool2) { //nem 60 'ın üstündeyse
 
   mailgonder=true;
   messageSentBool2 = true;
 
  } 
  if(h < 60)
   {
      messageSentBool2=false;
   }
//buzeer aktif
   if(h > 60) {
   digitalWrite(buzzerPin,HIGH);
   delay(4000);
   digitalWrite(buzzerPin,LOW);
   lcd.clear();
   lcd.print("NEM YUKSEK");
  } 
 //---------------------------------
   


//Nem ve Sıcaklık yüksekse mail gönder
//sıcaklık 27 derecenin üstündeyse
  if(t > 27 && !messageSentBool3) {

  mailgonder=true;
  messageSentBool3 = true;

  
  } 
 if(t < 27)
   {
      messageSentBool3=false;
   }
 //buzzer aktif
  if(t > 27 ) {
   digitalWrite(buzzerPin,HIGH);
   delay(4000);
   digitalWrite(buzzerPin,LOW);
   lcd.clear();
   lcd.print("ISI YUKSEK");
  } 
 //---------------------------------

  

//Mail Gönderme Fonksiyonu  
//byte inChar;
 
  //inChar = Serial.read();
 
 // if(inChar == 'e')
 
if(mailgonder==true)
  {
      if(sendEmail()) Serial.println(F("Email sent"));
      else Serial.println(F("Email failed"));
      mailgonder=false;
  }
  //------------------------------------------------------
  }
   
//loop son---
//Mail Fonksiyonu 
byte sendEmail()
{
  byte thisByte = 0;
  byte respCode;
 
  if(client.connect(server,port) == 1) {
    Serial.println(F("connected"));
  } else {
    Serial.println(F("connection failed"));
    return 0;
  }
 
  if(!eRcv()) return 0;
 
  Serial.println(F("Sending hello"));
// replace 1.2.3.4 with your Arduino's ip
  client.println("EHLO 1.2.3.4");
  if(!eRcv()) return 0;
 
  Serial.println(F("Sending auth login"));
  client.println("auth login");
  if(!eRcv()) return 0;
 
  Serial.println(F("Sending User"));
// Change to your base64 encoded user
  client.println("Mail Kullanıcı Adı base64 olarak");
 
  if(!eRcv()) return 0;
 
  Serial.println(F("Sending Password"));
// change to your base64 encoded password
  client.println("Mail şifre base64 olarak");
 
  if(!eRcv()) return 0;
 
// change to your email address (sender)
  Serial.println(F("Sending From"));
  client.println("MAIL From: <Alici Mail Adresi>");
  if(!eRcv()) return 0;
 
// change to recipient address
  Serial.println(F("Sending To"));
  client.println("RCPT To: <Gönderici Mail Adresi>");
  if(!eRcv()) return 0;
 
  Serial.println(F("Sending DATA"));
  client.println("DATA");
  if(!eRcv()) return 0;
 
  Serial.println(F("Sending email"));

// change to recipient address
  client.println("To: BILGIISLEM <alicimail yaz>");
 
// change to your address
  client.println("From: ANTIKKAPI OTS <gönderenmailı yaz>");
 
  client.println("Subject: SISTEM ODASI UYARI\r\n");


  client.print("NEM % :");
  client.println(h);
  client.print("SICAKLIK C :");
  client.println(t);
  client.println(".");

 
  if(!eRcv()) return 0;
 
  Serial.println(F("Sending QUIT"));
  client.println("QUIT");
  if(!eRcv()) return 0;
 
  client.stop();
 
  Serial.println(F("BAGLANTI KESILDI"));
 
  return 1;
}
 
byte eRcv()
{
  byte respCode;
  byte thisByte;
  int loopCount = 0;
 
  while(!client.available()) {
    delay(1);
    loopCount++;
 
    // if nothing received for 10 seconds, timeout
    if(loopCount > 10000) {
      client.stop();
      Serial.println(F("\r\nTimeout"));
      return 0;
    }
  }
 
  respCode = client.peek();
 
  while(client.available())
  {  
    thisByte = client.read();    
    Serial.write(thisByte);
  }
 
  if(respCode >= '4')
  {
    efail();
    return 0;  
  }
 
  return 1;
}
void efail()
{
  byte thisByte = 0;
  int loopCount = 0;
 
  client.println(F("QUIT"));
 
 while(!client.available()) {
    delay(1);
    loopCount++;
 
    // if nothing received for 10 seconds, timeout
    if(loopCount > 10000) {
      client.stop();
      Serial.println(F("\r\nTimeout"));
      return;
    }
  }
 while(client.available())
  {  
    thisByte = client.read();    
    Serial.write(thisByte);
  }
 client.stop();
 Serial.println(F("BAGLANTI KESILDI"));
}