#include <LiquidCrystal_I2C.h>
#include <Wire.h>
#include <Keypad.h>

int idtval = 30;
LiquidCrystal_I2C lcd(0x27, 16, 2);

char keys[4][4] = {
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
  {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
};

byte rowPins[4] = {1,2,3,4};
byte colPins[4] = {5,6,7,8};
Keypad myKeypad = Keypad(makeKeymap(keys), rowPins, colPins, 4, 4);
String kod = "1";
String inputPassword = "";
bool inMainLoop = true;
bool c=1;
  int z;
  int y;
  int deyerm = 10;
      int suret1 = 25;
    int suret2 = 217;
void setup() {
  Serial.begin(9600);

  lcd.init();
  lcd.backlight();
  lcd.setCursor(5, 0);
  lcd.print("LOADING");
  for (int i = 0; i < 3; i++) {
    lcd.setCursor(13, 0);
    lcd.print(".");
    delay(600);
    lcd.setCursor(14, 0);
    lcd.print(".");
    delay(400);
    lcd.setCursor(15, 0);
    lcd.print(".");
    delay(200);
    lcd.clear();
    lcd.setCursor(5, 0);
    lcd.print("LOADING");
  }
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Sifre:");
  pinMode(2, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
}
void loop() {

  if (inMainLoop) {
    char keyPressed = myKeypad.getKey();

    
    if (keyPressed) {
      if (keyPressed == '*') {
        if (inputPassword == kod) {       
          inMainLoop = false;
            lcd.clear();
  lcd.setCursor(5, 0);
  lcd.print("MADEIN");
  lcd.setCursor(4, 1);
  lcd.print("TEXNOLAB");
  delay(2000);
          cixis();
        } else {
          lcd.clear();
          lcd.print("Sifre:");
          lcd.setCursor(7, 0);
        }
        inputPassword = ""; // Reset the password
      } else {
        inputPassword += keyPressed;
        lcd.print(keyPressed);
      }
    }
  }
}
void cixis() {
  lcd.clear();
  while (1) {
  z = analogRead(A3);
   Serial.println(z);
  char keyPressed = myKeypad.getKey();
    y = analogRead(A2);
    Serial.println(y);
    int a0 = analogRead(A0);
    float v = a0 * 5.0 / 1024;
    float RT = 10 * v / (5 - v);
    float tempK = 1 / (log(RT / 10) / 3950 + 1 / (273.15 + 25));
    float tempC = tempK - 273.15;
    int tem = tempC;
    int duy1 = digitalRead(2);
    int duy2 = digitalRead(4);
    lcd.setCursor(3, 1);
    lcd.print(idtval);
    lcd.setCursor(0, 0);
    lcd.print("T");
    lcd.setCursor(0, 1);
    lcd.print(tem);
    lcd.print(" ");
    delay(100);
    lcd.setCursor(2, 0);
    lcd.print("IDT");
    lcd.setCursor(6, 0);
    lcd.print("M");
    lcd.setCursor(8, 0);
    lcd.print("IDTM");
    lcd.setCursor(9, 1);
    lcd.print("AV");
    lcd.setCursor(14, 0);
    lcd.print("MS");
    if (tem > idtval) {
      lcd.setCursor(6, 1);
      lcd.print("S");
    }
    if (tem < idtval) {
      lcd.setCursor(6, 1);
      lcd.print("I");
    }
    if(z==0){
   mator();
   delay(200);
  if(z==0){
    c=0;
    if(c==0){
      digitalWrite(9,0);
      digitalWrite(10,0);
    }
  }
   }
    if (keyPressed == 'B') {
      tempratur();
    } else if (keyPressed == 'C') {
      suret();
     }
        else if( keyPressed=='3'){
          lcd.clear();
      manual();
    }
    else if (keyPressed == 'A') {
      lcd.clear();
      cixis();
    }
  }
}
void tempratur() {
     lcd.clear();
  while (1) {
    char keyPressed = myKeypad.getKey();
    int a0 = analogRead(A0);
    float v = a0 * 5.0 / 1024;
    float RT = 10 * v / (5 - v);
    float tempK = 1 / (log(RT / 10) / 3950 + 1 / (273.15 + 25));
    float tempC = tempK - 273.15;
    int tem = tempC;
    int duy1 = digitalRead(2);
    int duy2 = digitalRead(4);
    lcd.setCursor(1, 0);
    lcd.print("TEMP");
    lcd.setCursor(12, 0);
    lcd.print("IDT");
    lcd.setCursor(1, 1);
    lcd.print(tem);
    lcd.setCursor(12, 1);
    lcd.print(idtval);
    if (duy1 == LOW) {
      idtval++;
      delay(50);
    }
    if (duy2 == LOW) {
      idtval--;
      delay(50);
    }

 if (keyPressed == 'C') {
  lcd.clear();
      suret();
     }
     if( keyPressed=='3'){
          lcd.clear();
      manual();
    }
 if (keyPressed == 'A') {
      lcd.clear();
      cixis();
    }
  }
}
void suret() {
  lcd.clear();
  while (1) {
    int duy3 = digitalRead(3);
    int duy5 = digitalRead(5);
    char keyPressed = myKeypad.getKey();
    lcd.setCursor(0, 0);
    lcd.print("MAX");
    lcd.setCursor(11, 0);
    lcd.print("MIN");
    lcd.setCursor(11, 1);
    lcd.print(suret1);
    lcd.setCursor(0, 1);
    lcd.print(suret2);
    if(keyPressed== '1'){
      max1();
    }
        if(keyPressed== '2'){
      min1();
    }
    if (keyPressed == 'A') {
      lcd.clear();
      cixis();
    }
    if(keyPressed=='B'){
      lcd.clear();
      tempratur();
    }
  if(keyPressed=='3'){
    lcd.clear();
    manual();
  }
  }
}
void max1() {
  while (1) {
    char keyPressed = myKeypad.getKey();
    lcd.setCursor(5, 0);
    lcd.print("<");
    int duy3 = digitalRead(3);
    int duy5 = digitalRead(5);
    if (duy3 == LOW) {
      suret2++;
      delay(100);
    }
    if (duy5 == LOW) {
      suret2--;
      delay(100);
    }
    lcd.setCursor(11, 1);
    lcd.print(suret1);
    lcd.setCursor(0, 1);
    lcd.print(suret2);
    if (keyPressed == '#') {
      lcd.clear();
      break;
    }
    delay(200);
  }
}
void min1() {
  while (1) {
     char keyPressed = myKeypad.getKey();
    lcd.setCursor(8, 0);
    lcd.print(">");
    int duy3 = digitalRead(3);
    int duy5 = digitalRead(5);
    lcd.setCursor(11, 1);
    lcd.print(suret1);
    lcd.setCursor(0, 1);
    lcd.print(suret2);
    if (duy3 == LOW) {
      suret1++; 
    }
    if (duy5 == LOW) {
      suret1--;  
    }
    if ( keyPressed == '#') {
      lcd.clear();
      break;
    }
    delay(100);
  }
}
void mator(){
while(1){  
 int z =analogRead(A3);
    digitalWrite(9,1);
    digitalWrite(10,0);
    if(z==0){
      break;
    }
}
}
void manual(){
  lcd.clear();
  while (1) {
  char keyPressed = myKeypad.getKey();
    z = analogRead(A3);
    Serial.println(z);
    int a0 = analogRead(A0);
    float v = a0 * 5.0 / 1024;
    float RT = 10 * v / (5 - v);
    float tempK = 1 / (log(RT / 10) / 3950 + 1 / (273.15 + 25));
    float tempC = tempK - 273.15;
    int tem = tempC;
    int duy1 = digitalRead(2);
    int duy2 = digitalRead(4);
    lcd.setCursor(3, 1);
    lcd.print(idtval);
    lcd.setCursor(0, 0);
    lcd.print("T");
    lcd.setCursor(0, 1);
    lcd.print(tem);
    lcd.print(" ");
    delay(100);
    lcd.setCursor(2, 0);
    lcd.print("IDT");
    lcd.setCursor(6, 0);
    lcd.print("M");
    lcd.setCursor(8, 0);
    lcd.print("IDTM");
    lcd.setCursor(9, 1);
    lcd.print("MAN");
    lcd.setCursor(14, 0);
    lcd.print("MS");
    lcd.setCursor(13, 1);
    lcd.print(deyerm);
    int deyer=analogRead(A2);
    deyerm =map(deyer, 517 , 1023 , suret1 , suret2);
    if(deyerm>0){
    analogWrite(9,deyerm);
    delay(deyer);
    analogWrite(10,0);
    delay(deyer);
    }
    if (tem > idtval) {
      lcd.setCursor(6, 1);
      lcd.print("S");
    }
    if (tem < idtval) {
      lcd.setCursor(6, 1);
      lcd.print("I");
    }
    if(keyPressed=='*'){
      lcd.clear();
      tempratur();
    }
    if(keyPressed =='#'){
    lcd.clear();
    break;
   }
  }
}