#include <Stepper.h>
#include <LiquidCrystal_I2C.h>
#define LCD_ADDRESS 0x27
#define LCD_COLUMNS 20
#define LCD_ROWS 4
#include <Keypad.h>
#define lenght  3
   char dose[lenght];
   char d='0';
   int data_count=0;
   char customKey ;
    int num=0;
    int x=0;
const int stepPin = 12; 
const int dirPin = 13; 

const byte ROWS = 4;
const byte COLS = 4;
int count = 0;
char hexaKeys[ROWS][COLS] =
{
  {'1', '2', '3', 'A'},
  {'4', '5', '6', 'B'},
  {'7', '8', '9', 'C'},
  {'*', '0', '#', 'D'}
};
byte rowPins[ROWS] = {2,3,4,5};
byte colPins[COLS] = {6,7,8,9};

byte t1 = 500, t2 = 100, f = 0;
unsigned long T, Last_T = 100;
int Delay = 5000;
Keypad customKeypad = Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS);

LiquidCrystal_I2C lcd(LCD_ADDRESS, LCD_COLUMNS, LCD_ROWS);

void setup() {
  pinMode(stepPin,OUTPUT); 
  pinMode(dirPin,OUTPUT);

  // put your setup code here, to run once:
   Serial.begin(9600);
 lcd.begin(20, 4);
  lcd.setCursor(0, 1);
lcd.print("Group B");
delay(2000);
lcd.clear();
  lcd.print("Starting");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  lcd.setCursor(0, 1);
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("do(ml)");
  lcd.setCursor(0, 1);
  
}

void loop() {
 
   
  // put your main code here, to run repeatedly:
   // Get key value if pressed
  
 // d = customKeypad.getKey();
  /* if (d=='*')
  {
   lcd.setCursor(data_count, 1);
    delay(1000);
  } */
 
     customKey = customKeypad.getKey();
   if (customKey) // makes sure a key is actually pressed, equal to (customKey != NO_KEY)
  {
    dose[data_count] = customKey ; // store char into data array
    lcd.print(dose[data_count]);
     Serial.println(dose[data_count]);
     Serial.println(data_count);
     data_count++; // increment data array by 1 to store new char, also keep track of the number of chars entered
  }

  if (data_count == lenght - 1) // if the array index is equal to the number of expected chars, compare data to master
  {
    data_count=0;
    delay(1000);
    lcd.clear();
    lcd.setCursor(0, 1);
    lcd.print("dose is ");
    lcd.setCursor(9, 1);
    num = (dose[1]-'0')+((dose[0]-'0')*10);
    lcd.print(num);
    lcd.setCursor(13, 1);
    lcd.print("mm");
    delay(4000);
    ///////////////////////////////////////////////////////////
     digitalWrite(dirPin,LOW); // Enables the motor to move in a particular direction
  // Makes 200 pulses for making one full cycle rotation
  for(int x = 0; x < num*100; x++) {
    digitalWrite(stepPin,HIGH); 
    delayMicroseconds(2000); 
    digitalWrite(stepPin,LOW); 
    delayMicroseconds(2000); 
  }
  delay(5000);

   digitalWrite(dirPin,HIGH); // Enables the motor to move in a particular direction
  // Makes 200 pulses for making one full cycle rotation
  for(int x = 0; x < num*100; x++) {
    digitalWrite(stepPin,HIGH); 
    delayMicroseconds(2000); 
    digitalWrite(stepPin,LOW); 
    delayMicroseconds(2000); 
  }
////////////////////////////////////////////////////////////////
lcd.clear();
 lcd.begin(20, 4);
  lcd.print("Starting");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  delay(t1); lcd.print(".");
  lcd.setCursor(0, 1);
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  delay(t2); lcd.print("."); delay(t2); lcd.print(".");
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("do(ml)");
  lcd.setCursor(0, 1);
    
  }
  
 ///////////////////////////////////////////////////////
 
}