#include <LiquidCrystal.h> //Libraries  
 #include <EEPROM.h>  
 #include <Arduino.h>
#include <TM1637Display.h>
const uint8_t SEG_DONE[] = {
	SEG_B | SEG_C | SEG_D | SEG_E | SEG_G,           // d
	SEG_A | SEG_B | SEG_C | SEG_D | SEG_E | SEG_F,   // O
	SEG_C | SEG_E | SEG_G,                           // n
	SEG_A | SEG_D | SEG_E | SEG_F | SEG_G            // E
	};
  const uint8_t SEG_PROG[] = {
	SEG_A | SEG_B | SEG_E | SEG_F | SEG_G,           // P
	SEG_E | SEG_G,                                   // R
  SEG_C | SEG_D | SEG_E | SEG_G,                   // O
	SEG_A | SEG_B | SEG_C | SEG_D | SEG_F | SEG_G    // G
	};
   const uint8_t SEG_HI[] = {
  SEG_G,                                              // 
  SEG_B | SEG_C | SEG_E | SEG_F | SEG_G,             // H                   // R
  SEG_F | SEG_E ,                                   // I
	SEG_G                                               // .
	};
// Module connection pins (Digital Pins)
#define CLK 2
#define DIO 3
TM1637Display display(CLK, DIO);
//display.setSegments(SEG_DONE);
 LiquidCrystal lcd(12,11,10,9,8,7); //Arduino pins to lcd  
 #define bt_up   A0  
 #define bt_down  A1  
 #define bt_reset A2  
 #define break_reset A5  
 #define buzzer 13  
 #define set_but A4  
 #define save_but A3  
 long d1=0, d2=0, d3=0, d4=0,s1=0,s2=0,s3=0,S1=0,S2=0,S3=0; 
 int mode = 0;
 int flag1=0, flag2=0, timer=0; 
uint8_t data[] = { 0xff, 0xff, 0xff, 0xff };


 void setup(){ 
 display.setBrightness(0x0f);//MAX - 0x0f
  S1=EEPROM.read(10);
  S2=EEPROM.read(9);
  S3=EEPROM.read(8);
  s1=EEPROM.read(5);
  s2=EEPROM.read(6);
  s3=EEPROM.read(7);
if(S1==0 && S2==0 && S3 ==0){S1=s1;S2=s2;S3=s3;}
  pinMode(bt_up,  INPUT_PULLUP);  
  pinMode(bt_down, INPUT_PULLUP);  
  pinMode(bt_reset, INPUT_PULLUP);  
  pinMode(set_but, INPUT_PULLUP); 
  pinMode(save_but, INPUT_PULLUP);  
  pinMode(break_reset, INPUT_PULLUP);  
  pinMode(buzzer, OUTPUT);  
  lcd.begin(16, 2); // Configura lcd numero columnas y filas  
  lcd.clear();  
  lcd.setCursor (0,0);  
  lcd.print("  Welcome To  ");  
  lcd.setCursor (0,1);  
  lcd.print("Digital  Counter");  
  delay(2000);  
  lcd.clear();  
 if(EEPROM.read(50)==0){  
 }else{WriteEeprom();}  
 EEPROM.write(50,0);   
 ReadEeprom(); 
 lcd.clear();
 lcd.setCursor (0,1);  
 lcd.print("break ="); 
 lcd.setCursor (8,1);  
 lcd.print(s1); 
 lcd.setCursor (9,1);  
 lcd.print(s2); 
 lcd.setCursor (10,1);  
 lcd.print(s3); 
  data[0] = display.encodeDigit(0);
  data[1] = display.encodeDigit(0);
  data[2] = display.encodeDigit(0);
  data[3] = display.encodeDigit(0);
  display.setSegments(SEG_HI);

 delay(3000);
 lcd.clear();
 
 } 

 void loop()
 {  
  break_reset_loop();
  data[0]=display.encodeDigit(d4);
  display.setSegments(data);
  data[1]=display.encodeDigit(d3);
  display.setSegments(data);
  data[2]=display.encodeDigit(d2);
  display.setSegments(data);
  data[3]=display.encodeDigit(d1);
  display.setSegments(data);
 break_set (); 
 if(digitalRead (bt_up) == 0){   
 if(flag1==0){ flag1=1;  
 d1=d1+1;  
 if(d1>9){d1=0; d2=d2+1;}   
 if(d2>9){d2=0; d3=d3+1;}   
 if(d3>9){d3=0; d4=d4+1;}   
 if(d4>9){d4=0;}
 S3=S3-1;
 if(S3<0){S3=9; S2=S2-1;}   
 if(S2<0){S2=9; S1=S1-1;}   
 if(S1<0){S1=0;} 
 write_break();
 
 if(S1==0 && S2==0 && S3==0)
 {
 digitalWrite(buzzer, HIGH);
 S1=EEPROM.read(5);
 S2=EEPROM.read(6);
 S3=EEPROM.read(7);
 delay(2000);
 digitalWrite(buzzer, LOW);
 }  

 WriteEeprom();   
  }  
 }else{flag1=0;}  
 if(digitalRead (bt_down) == 0){   
 if(flag2==0){ flag2=1;  
 d1=d1-1;  
 if(d1<0){d1=9; d2=d2-1;}   
 if(d2<0){d2=9; d3=d3-1;}   
 if(d3<0){d3=9; d4=d4-1;}   
 if(d4<0){d4=9;}   
 WriteEeprom();   
  }   
 }else{flag2=0;}  
 if(digitalRead (bt_reset) == 0){   
 digitalWrite(buzzer, HIGH);  
 if(timer<100){timer=timer+1;}  
 if(timer==100){  
 d1=0, d2=0, d3=0, d4=0;  
 WriteEeprom(); 
 digitalWrite(buzzer, LOW); delay(1000);
 }    
 }else{digitalWrite(buzzer, LOW); timer=0;}  
 lcd.setCursor (0,0);  
 lcd.print("Digital Counter");  
 lcd.setCursor(4,1);  
 lcd.print(d4);  
 lcd.print(d3);  
 lcd.print(d2);  
 lcd.print(d1);  
 lcd.setCursor(10,1);  
 lcd.print(S1);  
 lcd.print(S2);  
 lcd.print(S3);  
 delay(10);  
 }  
 void ReadEeprom() {  
 d1=EEPROM.read(1);  
 d2=EEPROM.read(2);  
 d3=EEPROM.read(3);  
 d4=EEPROM.read(4);  

 }  
 void WriteEeprom() {   
 EEPROM.write(1, d1);  
 EEPROM.write(2, d2);  
 EEPROM.write(3, d3);  
 EEPROM.write(4, d4);   
 } 
 void break_set () 
 {
  while(digitalRead (set_but) == 0 )
 { if(mode == 0){s1=0;s2=0;s3=0;S1=0;S2=0;S3=0;mode=1;}
  while(mode == 1){
  display.setSegments(SEG_PROG);
  lcd.setCursor (0,0);  
  lcd.print("Break Set  Mode");
  lcd.setCursor (0,1);  
  lcd.print("digit 1 = ");
  lcd.setCursor (11,1);
  if(digitalRead (bt_up) == 0){
  delay(100);
  s1++;
  if(s1>9){s1=0;}
  lcd.print(s1);}
  delay(100);
  if(digitalRead(save_but) == 0){
  EEPROM.write(5, s1);
  delay(100);
  lcd.setCursor (0,1);  
  lcd.print("saved successfully ");
  delay(2000);
  lcd.clear();
  mode = 2;}}

  while(mode == 2){
  display.setSegments(SEG_PROG);
  lcd.setCursor (0,0);  
  lcd.print("Break Set Mode");
  lcd.setCursor (0,1);  
  lcd.print("digit 2 = ");
  lcd.setCursor (11,1);
  if(digitalRead (bt_up) == 0){
  delay(100);
  s2++;
  if(s2>9){s2=0;}
  lcd.print(s2);}
  delay(100);
  if(digitalRead(save_but) == 0){
  EEPROM.write(6, s2);
  delay(100);
  lcd.setCursor (0,1);  
  lcd.print("saved successfully ");
  delay(2000);
  mode = 3;
  lcd.clear();}}

while(mode == 3){
  display.setSegments(SEG_PROG);
  lcd.setCursor (0,0);  
  lcd.print("Break Set Mode");
  lcd.setCursor (0,1);  
  lcd.print("digit 3 = ");
  lcd.setCursor (11,1);
  if(digitalRead (bt_up) == 0){
  delay(100);
  s3++;
  if(s3>9){s3=0;}
  lcd.print(s3);}
  delay(100);
  if(digitalRead(save_but) == 0){
  EEPROM.write(7, s3);
  delay(100);
  lcd.setCursor (0,1);  
  lcd.print("saved successfully ");
  delay(2000);
  mode = 4;
  lcd.clear();}}




  while(mode == 4 && digitalRead (set_but) == 0){ lcd.setCursor (0,0);  
  lcd.print("chang to runmode");S1=s1;S2=s2;S3=s3;write_break();delay(100);display.setSegments( SEG_DONE);}
 }}
 void write_break()
 {
 EEPROM.write(8,S3);
 EEPROM.write(9,S2);
 EEPROM.write(10,S1);
 }
 void break_reset_loop()
 {
if(digitalRead(break_reset)==LOW)
{
S1=s1;
S2=s2;
S3=s3;
write_break();
}
}