/*
 * This ESP32 code is created by esp32io.com
 *
 * This ESP32 code is released in the public domain
 *
 * For more detail (instruction and wiring diagram), visit https://esp32io.com/tutorials/esp32-keypad-lcd
 */

/*#include <Keypad.h>
#include <LiquidCrystal_I2C.h>

#define ROW_NUM     4 // four rows
#define COLUMN_NUM  4 // four columns

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

byte pin_rows[ROW_NUM]      = {19, 18, 5, 12}; // GIOP19, GIOP18, GIOP5, GIOP17 connect to the row pins
byte pin_column[COLUMN_NUM] = {4, 2, 15, 14};   // GIOP16, GIOP4, GIOP0, GIOP2 connect to the column pins

Keypad keypad = Keypad(makeKeymap(keys), pin_rows, pin_column, ROW_NUM, COLUMN_NUM );
LiquidCrystal_I2C lcd(0x27, 16, 2); // I2C address 0x27, 16 column and 2 rows

int cursorColumn = 0;
int inputCount = 0;
String userInput1 = "";
String userInput2 = "";
String userInput3 = "";




void setup(){
  lcd.init(); // initialize the lcd
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("Enter input 1:");
}

void loop(){
  char key = keypad.getKey();

if (key != NO_KEY) {
    // Handle input 1
    if (inputCount == 0) {
      // Update the user input
      userInput1 += key;

      // Display the user input on the LCD
      lcd.setCursor(0, 1);
      lcd.print(userInput1);

      // Check if input 1 is complete
      if (userInput1.length() == 1) {
        // Update the input count and prompt for input 2
        delay(2000);
        inputCount++;
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Enter input 2:");
      }
    }
    // Handle input 2
    else if (inputCount == 1) {
      // Update the user input
      userInput2 += key;

      // Display the user input on the LCD
      lcd.setCursor(0, 1);
      lcd.print(userInput2);

      // Check if input 2 is complete
      if (userInput2.length() >0 && key == '#') {
        // Update the input count and prompt for input 3
        
        inputCount++;
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Enter input 3:");
      }
    }
    // Handle input 3
    else if (inputCount == 2) {
      // Update the user input
      userInput3 += key;

      // Display the user input on the LCD
      lcd.setCursor(0, 1);
      lcd.print(userInput3);

      // Check if input 3 is complete
      if (userInput3.length() >0 && key == '#') {
        // Update the input count and prompt for input 3
        
        inputCount++;
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Enjoy Prayushi");
       
      }
    
    }

}
if (key == '*'){ // if * is pressed anytime in between, it will reset the ESP32
   ESP.restart();
}
}
*/
#include <Keypad.h>
#include <LiquidCrystal_I2C.h>

#define ROW_NUM     4 // four rows
#define COLUMN_NUM  4 // four columns

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

byte pin_rows[ROW_NUM]      = {19, 18, 5, 12}; // GIOP19, GIOP18, GIOP5, GIOP17 connect to the row pins
byte pin_column[COLUMN_NUM] = {4, 2, 15, 14};   // GIOP16, GIOP4, GIOP0, GIOP2 connect to the column pins

Keypad keypad = Keypad(makeKeymap(keys), pin_rows, pin_column, ROW_NUM, COLUMN_NUM );
LiquidCrystal_I2C lcd(0x27, 16, 2); // I2C address 0x27, 16 column and 2 rows

int cursorColumn = 0;
int inputCount = 0;
String userInput1 = "";
String userInput2 = "";
String userInput3 = "";




void setup(){
  lcd.init(); // initialize the lcd
  lcd.backlight();
  lcd.setCursor(0, 0);
  lcd.print("Enter input 1:");
}

void loop(){
  char key = keypad.getKey();

if (key != NO_KEY) {
    // Handle input 1
    if (inputCount == 0) {
      // Update the user input
      userInput1 += key;

      // Display the user input on the LCD
      lcd.setCursor(0, 1);
      lcd.print(userInput1);

      // Check if input 1 is complete
      if (userInput1.length() == 1 && key == '#') {
        // Update the input count and prompt for input 2
        delay(2000);
        inputCount++;
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Enter input 2:");
      }
    }
    // Handle input 2
    else if (inputCount == 1) {
      // Update the user input
      userInput2 += key;

      // Display the user input on the LCD
      lcd.setCursor(0, 1);
      lcd.print(userInput2);

      // Check if input 2 is complete
      if (userInput2.length() >0 && key == '#') {
        // Update the input count and prompt for input 3
        
        inputCount++;
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Enter input 3:");
      }
    }
    // Handle input 3
    else if (inputCount == 2) {
      // Update the user input
      userInput3 += key;

      // Display the user input on the LCD
      lcd.setCursor(0, 1);
      lcd.print(userInput3);

      // Check if input 3 is complete
      if (userInput3.length() >0 && key == '#') {
        // Update the input count and prompt for input 3
        
        inputCount++;
        lcd.clear();
        lcd.setCursor(0, 0);
        lcd.print("Enjoy Prayushi");
       
      }
    
    }

}
if (key == '*'){
   ESP.restart();
}
}
  //enjoy and good night :)