Tarım otomasyon arduino kodu

#include <Wire.h>
#include "RTClib.h"
#include <dht.h>

char blueToothVal;
int serialInt = 0;
int fan = 7;
int water = 8;
int moisture = 0;
boolean autoMod = false;
boolean set = false;
boolean maxTempB = false;
boolean minTempB = false;
boolean maxMoisB = false;
boolean minMoisB = false;
int maxTemp = 30;
int maxMois = 400;
int minTemp = 20;
int minMois = 150;

RTC_DS1307 RTC;
dht DHT;

#define DHT11_PIN 2

void setup() {
    Wire.begin();
    RTC.begin();
    pinMode(fan, OUTPUT);
    pinMode(water, OUTPUT);
    Serial.begin(9600);
    digitalWrite(fan, LOW);
    digitalWrite(water, LOW);
}

void loop() {
  if(autoMod){
    if(!digitalRead(fan) && DHT.temperature > maxTemp){
    digitalWrite(fan, HIGH);
    }
    else if(digitalRead(fan) && DHT.temperature < minTemp){
    digitalWrite(fan, LOW);
    }
  }

  if(Serial.available()){
    blueToothVal=Serial.read();
    serialInt = Serial.parseInt();
  }
  if(blueToothVal != 0 || serialInt != 0){
    if(!set){
      if (blueToothVal=='u'){
       getUpdate();
      }
      else if(blueToothVal=='f' && !autoMod){
        if(!digitalRead(fan)){
        digitalWrite(fan, HIGH);
        Serial.println("Fan is On");
        }
        else if(digitalRead(fan)){
        digitalWrite(fan, LOW);
        Serial.println("Fan is Off");
        }

        blueToothVal = 0;
      }

      else if(blueToothVal=='w' && !autoMod){
        if(!digitalRead(water)){
        digitalWrite(water, HIGH);
        Serial.println("Water is On");
        }
        else if(digitalRead(water)){
        digitalWrite(water, LOW);
        Serial.println("Water is Off");
        }

        blueToothVal = 0;
      }

      else if(blueToothVal=='a'){
        if(autoMod){
          autoMod = false;
        }
        else if(!autoMod){
          autoMod = true;
        }
        getUpdate();
        blueToothVal = 0;
      }

      else if(blueToothVal=='s'){
        set = true;
        Serial.println("W/F");
        blueToothVal = 0;
      }
    }
    else if(set){
      if(minTempB){
        if(serialInt < maxTemp){
          minTemp = serialInt;
          serialInt = 0;
          minTempB = false;
          set = false;
          Serial.println(minTemp);
        }
        else{
          Serial.println("please enter a smaller value than max temperature!");
          serialInt = 0;
        }
      }

      else if(maxTempB){
        maxTemp = serialInt;
        serialInt = 0;
        maxTempB = false;
        minTempB = true;
        Serial.println(maxTemp);
        Serial.println("Give min Temperature value.");
      }

      else if(minMoisB){
        if(serialInt < maxMois){
          minMois = serialInt;
          serialInt = 0;
          minMoisB = false;
          set = false;
          Serial.println(minMois);
        }
        else{
          Serial.println("please enter a smaller value than max moisture!");
          serialInt = 0;
        }
      }

      else if(maxMoisB){
        maxMois = serialInt;
        serialInt = 0;
        maxMoisB = false;
        minMoisB = true;
        Serial.println(maxMois);
        Serial.println("Give min Moisture value.");
      }


      if(blueToothVal == 'f'){
      Serial.println("Give max Temperature value.");
      maxTempB = true;
      }

      else if(blueToothVal == 'w'){
      Serial.println("Give max Moisture value.");
      maxMoisB = true;
      }
      blueToothVal = 0;
    }
  }
}

void getUpdate(){
  DateTime now = RTC.now();
  Serial.print(now.year(), DEC);
  Serial.print("/");
  Serial.print(now.month(), DEC);
  Serial.print("/");
  Serial.print(now.day(), DEC);
  Serial.print(" ");
  Serial.print(now.hour(), DEC);
  Serial.print(":");
  Serial.print(now.minute(), DEC);
  Serial.print(":");
  Serial.print(now.second(), DEC);
  Serial.println();
  int chk = DHT.read11(DHT11_PIN);
  if(DHT.temperature > -30){
    Serial.print("Temperature = ");
    Serial.println(DHT.temperature);
    Serial.print("Humidity = ");
    Serial.println(DHT.humidity);
    Serial.print("Auto Mod = ");
    Serial.println(autoMod);
    Serial.println();
    Serial.print("Max Temp = ");
    Serial.println(maxTemp);
    Serial.print("Min Temp = ");
    Serial.println(minTemp);
    Serial.println();
    Serial.print("Max Mois = ");
    Serial.println(maxMois);
    Serial.print("Min Mois = ");
    Serial.println(minMois);
    Serial.println();
    blueToothVal = 0;
  }
}