//Nicolas Jarpa
//Multiple Timer  RTC3231+LCD+Single Relay+Select day+eeprom

#include <EEPROM.h>
#include <RTClib.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,20,4);
RTC_DS3231 RTC;

char daysOfTheWeek[7][20] = {"DOMINGO", "SEGUNDA-FEIRA", "TERCA-FEIRA", "Quarta-feira", "Quinta-feira", "Sexta-feira", "Sabado"};

//-----------------------//
//------Variáveis--------//
//-----------------------//

//------Primeiro temporizador
byte onhour1;
byte onmin1;
byte onsec1;

byte offhour1;
byte offmin1;
byte offsec1;
//------Dias da semana
boolean DOM;
boolean SEG;
boolean TER; 
boolean QUA;
boolean QUI;
boolean SEX;
boolean SAB;

//------Páginas ou menus
int page_counter=1;
int subpage1_counter=0;
int subpage2_counter=0;

//-------Para converter o relógio em um único número
unsigned long Time;
unsigned long Hour;
unsigned long Min;
unsigned long Sec;
//------Para converter o primeiro temporizador em número único
unsigned long on_Time1;
unsigned long on_hour1;
unsigned long on_min1;
unsigned long on_sec1;

unsigned long off_Time1;
unsigned long off_hour1;
unsigned long off_min1;
unsigned long off_sec1;

//-------Botões de pressão estado atual/último
boolean current_up = LOW;          
boolean last_up=LOW;            
boolean current_sel = LOW;
boolean last_sel = LOW;
boolean last_down = LOW;
boolean current_down = LOW;
//-------Pins
byte Relay1 =13;//Relé para pino 13
int up=2;      //Botão para cima para fixar 2
int sel=3;     //Selecione o botão para fixar 3
int down=4;   //Botão para baixo no pino 4

//Caractere de retorno personalizado
byte back[8] = {
  0b00100,
  0b01000,
  0b11111,
  0b01001,
  0b00101,
  0b00001,
  0b00001,
  0b11111
};

//Caractere de seta personalizado
byte arrow[8] = {
  0b01000,
  0b00100,
  0b00010,
  0b11111,
  0b00010,
  0b00100,
  0b01000,
  0b00000
};

void setup() { 
  pinMode(Relay1, OUTPUT);
     
     Wire.begin();
     RTC.begin();
     lcd.init();
     lcd.backlight();
     lcd.clear();
  lcd.createChar(1, back);//Personagens personalizados
  lcd.createChar(2, arrow);    
//--------valores de leitura eePROM-------//
//------Primeiro temporizador
onhour1=EEPROM.read(0);
onmin1=EEPROM.read(1);
onsec1=EEPROM.read(2);

offhour1=EEPROM.read(3);
offmin1=EEPROM.read(4);
offsec1=EEPROM.read(5);

DOM=EEPROM.read(6);
SEG=EEPROM.read(7);
TER=EEPROM.read(8);
QUA=EEPROM.read(9);
QUI=EEPROM.read(10);
SEX=EEPROM.read(11);
SAB=EEPROM.read(12);

}

   //---- Função de de-bouncing para todos os botões----//
boolean debounce(boolean last, int pin)
{
boolean current = digitalRead(pin);
if (last != current)
{
delay(10);
current = digitalRead(pin);
}
return current;
}

void loop() {
  
current_up = debounce(last_up, up);         //Botão Debounce para cima
current_sel = debounce(last_sel, sel);      //Botão Debounce para Selecionar
current_down = debounce(last_down, down);   //Botão Debounce para baixo  
  
DateTime now = RTC.now();        // Chamada do relógio
now = RTC.now();

//-----Funções para cima/para baixo para mover as páginas principais------///   
 
if(subpage1_counter==0 && subpage2_counter==0){ //botões para cima/para baixo ativados se os contadores de subpáginas forem 0, desativados se 1,2..etc para funcionar em submenus
  
//Page Up
    if (last_up== LOW && current_up == HIGH){ //Botão para cima pressionado
      lcd.clear();                            //Limpe o lcd se a página for alterada para imprimir uma nova
      if(page_counter <4){                   //Contador de páginas nunca superior a 4 (total de páginas)
      page_counter ++;                       //Página acima      
      }
      else{
      page_counter= 1;                       //Se for maior que 4 (última página) vá para a página principal
      }
  
} 
last_up = current_up;                   //Último estado do botão Economizar 

//Page Down
    if (last_down== LOW && current_down == HIGH){//Botão para baixo pressionado
      lcd.clear();                               //Limpar lcd se a página for alterada para imprimir uma nova
      if(page_counter >1){                      //Contador de páginas nunca inferior a 1
      page_counter --;                          //Página para baixo
      
      }
      else{
      page_counter= 4;                 //Se for menor que 1 (primeira página), vá para a última página
      }
  }    
    last_down = current_down;         //Último estado do botão Salvar
}  
//------------Exibição e controle de páginas e submenus----------//  
  switch (page_counter){
    case 1:                      //Conteúdo da página principal
  last_sel=current_sel;  //Salvar o último estado do botão de seleção quando saltarmos da tela de salvamento
      lcd.setCursor(0,0);
      lcd.print("    TEMPORIZADOR    ");
      lcd.setCursor(3,2);
      lcd.print(daysOfTheWeek[now.dayOfTheWeek()]);
      
//--------Mostrar hora no LCD

lcd.setCursor(6,3);                 
if(now.hour() < 10)
{
lcd.print("0");
}
lcd.print(now.hour(), DEC); //Hora de impressão
lcd.print(':');
if(now.minute() < 10)
{
lcd.print("0");
}
lcd.print(now.minute(), DEC); //Imprimir min.
lcd.print(':');
if(now.second() < 10)
{
lcd.print("0");
}
lcd.print(now.second(), DEC); //Imprimir segundo

    //case 1
    break;

    case 2:                   //Conteúdo e funções da página 2
      lcd.setCursor(0,0);
      lcd.print("    TEMPORIZADOR    ");
      lcd.setCursor(3,2);
      lcd.print("ON");
      lcd.setCursor(1,3);
      lcd.write(byte(1));
      lcd.setCursor(3,3);
      lcd.print("OFF");

            lcd.setCursor(7,2);    //Printing on/off values
            if(onhour1<10){
              lcd.print("0");
            }
            lcd.print(onhour1);
            lcd.setCursor(10,2);
            if(onmin1<10){
              lcd.print("0");
            }
            lcd.print(onmin1);
            lcd.setCursor(13,2);
            if(onsec1<10){
              lcd.print("0");
            }
            lcd.print(onsec1);
            lcd.setCursor(7,3);
            if(offhour1<10){
              lcd.print("0"); 
            }
            lcd.print(offhour1);
            lcd.setCursor(10,3);
            if(offmin1<10){
              lcd.print("0");
            }
            lcd.print(offmin1);
            lcd.setCursor(13,3);
            if(offsec1<10){
              lcd.print("0");
            }
            lcd.print(offsec1);
                        
//--------------Modifying on/off values-------//
     // Sub counter control
     if (last_sel== LOW && current_sel == HIGH){ //select button pressed
      if(subpage1_counter <7){                    // subpage counter never higher than 7 (total of items)
     subpage1_counter ++;                         //subcounter to move beetwen submenu
     }
     else{                                       //If subpage higher than 7 (total of items) return to first item
      subpage1_counter=1;
     }
     }
     last_sel=current_sel;                      //Save last state of select button

     //First item control(subpage_counter =1) onhour1
     if(subpage1_counter==1){
     lcd.setCursor(0,3);         //Delete last arrow position (back)
     lcd.print(" ");                                         
     lcd.setCursor(6,2);          //Place arrow in front of selected item
     lcd.write(byte(2));         
     //Move item + or -
     if (last_up== LOW && current_up == HIGH){  //Up 
      if(onhour1 < 23){
     onhour1 ++;
      }
      else{
     onhour1 =0;
      }
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Down
     if(onhour1 >0){
      onhour1 --; 
     }
     else{
      onhour1=23;
     }
     }
     last_down=current_down;
    }//subpage1_counter 1

     //Second item control(subpage_counter =2) onmin1
     if(subpage1_counter==2){
     lcd.setCursor(6,2);         //Delete last arrow position (onhour1)
     lcd.print(" ");                                         
     lcd.setCursor(9,2);          //Place arrow in front of selected item
     lcd.write(byte(2));         
     //Move item + or -
     if (last_up== LOW && current_up == HIGH){  //Up 
      if(onmin1 < 59){
     onmin1 ++;
      }
      else{
     onmin1 =0;
      }
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Down
     if(onmin1 >0){
      onmin1 --; 
     }
     else{
      onmin1=59;
     }
     }
     last_down=current_down;
    }//subpage1_counter 2
    
     //Tirth item control(subpage_counter =3) onsec1
     if(subpage1_counter==3){
     lcd.setCursor(9,2);         //Delete last arrow position (onmin1)
     lcd.print(" ");                                        
     lcd.setCursor(12,2);          //Place arrow in front of selected item
     lcd.write(byte(2));         
     //Move item + or -
     if (last_up== LOW && current_up == HIGH){  //Up 
      if(onsec1 < 59){
     onsec1 ++;
      }
      else{
     onsec1 =0;
      }
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Down
     if(onsec1 >0){
      onsec1 --; 
     }
     else{
      onsec1=59;
     }
     }
     last_down=current_down;
    }//subpage1_counter 3

     //fourth item control(subpage_counter =4) offhour1
     if(subpage1_counter==4){
     lcd.setCursor(12,2);         //Delete last arrow position (onsec1)
     lcd.print(" ");                                         
     lcd.setCursor(6,3);          //Place arrow in front of selected item
     lcd.write(byte(2));         
     //Move item + or -
     if (last_up== LOW && current_up == HIGH){  //Up 
      if(offhour1 < 23){
     offhour1 ++;
      }
      else{
     offhour1 =0;
      }
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Down
     if(offhour1 >0){
      offhour1 --; 
     }
     else{
      offhour1=23;
     }
     }
     last_down=current_down;
    }//subpage1_counter 4

     //fifth item control(subpage_counter =5) offmin1
     if(subpage1_counter==5){
     lcd.setCursor(6,3);         //Delete last arrow position (offhour1)
     lcd.print(" ");                                         
     lcd.setCursor(9,3);          //Place arrow in front of selected item
     lcd.write(byte(2));         
     //Move item + or -
     if (last_up== LOW && current_up == HIGH){  //Up 
      if(offmin1 < 59){
     offmin1 ++;
      }
      else{
     offmin1 =0;
      }
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Down
     if(offmin1 >0){
      offmin1 --; 
     }
     else{
      offmin1=59;
     }
     }
     last_down=current_down;
    }//subpage1_counter 5 

     //sixth item control(subpage_counter =6) offsec1
     if(subpage1_counter==6){
     lcd.setCursor(9,3);         //Delete last arrow position (offmin1)
     lcd.print(" ");                                         
     lcd.setCursor(12,3);          //Place arrow in front of selected item
     lcd.write(byte(2));         
     //Move item + or -
     if (last_up== LOW && current_up == HIGH){  //Up 
      if(offsec1 < 59){
     offsec1 ++;
      }
      else{
     offsec1 =0;
      }
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Down
     if(offsec1 >0){
      offsec1 --; 
     }
     else{
      offsec1=59;
     }
     }
     last_down=current_down;
    }//subpage1_counter 6 
          

     //seventh item control(subpage_counter =7) back
     if(subpage1_counter==7){
     lcd.setCursor(12,3);         //Delete last arrow position (offsec1)
     lcd.print(" ");                                         
     lcd.setCursor(0,3);          //Place arrow in front of selected item
     lcd.write(byte(2));         
     //Move item + or -
     if (last_up== LOW && current_up == HIGH){  //Up
      lcd.setCursor(0,3);         //Delete last arrow position (back) to exit
      lcd.print(" "); 
     subpage1_counter=0;         //Exit submenu. Up/down butons enabled to move main pages     
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Down
      lcd.setCursor(0,3);         //Delete last arrow position (back)
      lcd.print(" "); 
     subpage1_counter=1;         //Go to first item (onhour1)
     }
     last_down=current_down;
    }//subpage1_counter 7
    //case 2
    break;
    
    case 3:                //Content and funtions of page 3
    lcd.setCursor(0,0);
    lcd.print("    TEMPORIZADOR    ");
    lcd.setCursor(1,2);
    lcd.print("SEG");
    lcd.print(SEG);
    lcd.setCursor(6,2);
    lcd.print("TER");
    lcd.print(TER);
    lcd.setCursor(11,2);
    lcd.print("QUA");
    lcd.print(QUA);
    lcd.setCursor(18,2);
    lcd.write(byte(1));
    lcd.setCursor(1,3);
    lcd.print("QUI");
    lcd.print(QUI);
    lcd.setCursor(6,3);
    lcd.print("SEX");
    lcd.print(SEX);
    lcd.setCursor(11,3);
    lcd.print("SAB");
    lcd.print(SAB);
    lcd.setCursor(16,3);
    lcd.print("DOM");
    lcd.print(DOM);            
//------Modifying days states    
     // Sub counter control
     if (last_sel== LOW && current_sel == HIGH){ //select button pressed
      if(subpage2_counter <8){                    // subpage counter never higher than 8 (total of items)
     subpage2_counter ++;                         //subcounter to move beetwen submenu
     }
     else{                                       //If subpage higher than 8 (total of items) return to first item
      subpage2_counter=1;
     }
     }
     last_sel=current_sel;                      //Save last state of select button 

//------Days enabled=1 disabled=0.Up button to set 1 , down button to set 0
     //First item to control (subpage2_counter=1) Mon1
     if(subpage2_counter ==1){
     lcd.setCursor(17,2);         //Excluir a última posição da seta (voltar)
     lcd.print(" ");                                         
     lcd.setCursor(0,2);          //Coloque a seta na frente do item selecionado
     lcd.write(byte(2)); 
     if (last_up== LOW && current_up == HIGH){  //Acima 
     SEG=1;
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Baixo
     SEG=0;
     }
     last_down=current_down;       
     }//subpágina2 contador 1

     
     //Segundo item a controlar (subpage2_counter=2) Ter1
     if(subpage2_counter ==2){
     lcd.setCursor(0,2);         //Excluir a última posição da seta (SEG1)
     lcd.print(" ");                                         
     lcd.setCursor(5,2);          //Coloque a seta na frente do item selecionado
     lcd.write(byte(2)); 
     if (last_up== LOW && current_up == HIGH){  //Acima 
     TER=1;
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){////Baixo
     TER=0;
     }
     last_down=current_down;       
     }//subpage2 counter 2

     //Tirth item to control (subpage2_counter=3) Wed1
     if(subpage2_counter ==3){
     lcd.setCursor(5,2);         //Excluir a última posição da seta Ter1
     lcd.print(" ");                                         
     lcd.setCursor(10,2);          //Coloque a seta na frente do item selecionado
     lcd.write(byte(2)); 
     if (last_up== LOW && current_up == HIGH){  //Up 
     QUA=1;
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Down
     QUA=0;
     }
     last_down=current_down;       
     }//subpage2 counter 3

     //Fourth item to control (subpage2_counter=4) Thu1
     if(subpage2_counter ==4){
     lcd.setCursor(10,2);         //Excluir a última posição da seta Qua1
     lcd.print(" ");                                         
     lcd.setCursor(0,3);          //Coloque a seta na frente do item selecionado
     lcd.write(byte(2)); 
     if (last_up== LOW && current_up == HIGH){  //Up 
     QUI=1;
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Down
     QUI=0;
     }
     last_down=current_down;       
     }//subpage2 counter 4

     //Fifth item to control (subpage2_counter=5) Fri1
     if(subpage2_counter ==5){
     lcd.setCursor(0,3);         //Excluir a última posição da seta Qui1
     lcd.print(" ");                                         
     lcd.setCursor(5,3);          //Coloque a seta na frente do item selecionado
     lcd.write(byte(2)); 
     if (last_up== LOW && current_up == HIGH){  //Up 
     SEX=1;
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Down
     SEX=0;
     }
     last_down=current_down;       
     }//subpage2 counter 5

     //sixth item to control (subpage2_counter=6) Sat1
     if(subpage2_counter ==6){
     lcd.setCursor(5,3);         //Delete last arrow position Fri1
     lcd.print(" ");                                         
     lcd.setCursor(10,3);          //Place arrow in front of selected item
     lcd.write(byte(2)); 
     if (last_up== LOW && current_up == HIGH){  //Up 
     SAB=1;
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Down
     SAB=0;
     }
     last_down=current_down;       
     }//subpage2 counter 6

     //seventh item to control (subpage2_counter=7) Sun1
     if(subpage2_counter ==7){
     lcd.setCursor(10,3);         //Delete last arrow position Sat1
     lcd.print(" ");                                         
     lcd.setCursor(15,3);          //Place arrow in front of selected item
     lcd.write(byte(2)); 
     if (last_up== LOW && current_up == HIGH){  //Up 
     DOM=1;
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Down
     DOM=0;
     }
     last_down=current_down;       
     }//subpage2 counter 7

     //eigth item to control (subpage2_counter=8) back
     if(subpage2_counter ==8){
     lcd.setCursor(15,3);         //Excluir a última posição da seta Sun1
     lcd.print(" ");                                         
     lcd.setCursor(17,2);          //Coloque a seta na frente do item selecionado
     lcd.write(byte(2)); 
     if (last_up== LOW && current_up == HIGH){  //Up
      lcd.setCursor(17,2);
      lcd.print(" ");
     subpage2_counter=0;    //Exit submenu
     }
     last_up=current_up;
     
     if(last_down== LOW && current_down == HIGH){//Down
     subpage2_counter=1;
     }
     last_down=current_down;       
     }//subpage2 counter 8 
             
    //case 3
    break;

    case 4:                //Page 4 display and functions
      lcd.setCursor(0,0);
      lcd.print("    PRESSIONE OK    ");
      lcd.setCursor(0,1);
      lcd.print("    PARA SALVAR:    ");
     if (last_sel== LOW && current_sel == HIGH){  //select button pressed.Save settings to eeprom

  EEPROM.write(0, onhour1);
  EEPROM.write(1, onmin1);
  EEPROM.write(2, onsec1);
  EEPROM.write(3, offhour1);
  EEPROM.write(4, offmin1);
  EEPROM.write(5, offsec1);
  EEPROM.write(6, DOM);
  EEPROM.write(7, SEG);
  EEPROM.write(8, TER);
  EEPROM.write(9, QUA);
  EEPROM.write(10, QUI);
  EEPROM.write(11, SEX);
  EEPROM.write(12, SAB);    
  lcd.clear();                 //Print message "SAVED!"
  lcd.setCursor(0,1);
  lcd.print("       SALVO!       ");
  delay(2000);
  lcd.clear();               //Clear lcd and go to main page
  page_counter=1;
     }
  last_sel=current_sel;  //Save last state of select button
      
    //Case 4
    break;
  }//switch


//-------------Convertion----------//

//---------Converting clock time into single number 
 
Hour = now.hour();
Min = now.minute();
Sec = now.second();
Time = (Hour*10000+ Min*100 +Sec*1);  

//--------Converting first timer on/off into single number
on_hour1=onhour1;
on_min1=onmin1;
on_sec1=onsec1;
on_Time1=(on_hour1*10000 + on_min1*100 + on_sec1);

off_hour1=offhour1;
off_min1=offmin1;
off_sec1=offsec1;
off_Time1=(off_hour1*10000 + off_min1*100 + off_sec1);
   
//----Relay Function per day----//
switch(now.dayOfTheWeek()){  //now.dayOfTheWeek values 1 to 7, monday to sunday
  case 1:    //If monday
  if(SEG==1){
    First_Timer();
  }
  else{
   digitalWrite(Relay1, LOW);    
  }  
  break;
  
  case  2:  //If tuesday
  if(TER==1){
    First_Timer();
  }
  else{
   digitalWrite(Relay1, LOW);    
  }
  break;
  
  case 3:  //If wednesday
  if(QUA==1){
   First_Timer(); 
  }
  else{
   digitalWrite(Relay1, LOW);    
  }  
  break;

  case 4:  //If thursday
  if(QUI==1){
   First_Timer(); 
  }
  else{
   digitalWrite(Relay1, LOW);    
  }  
  break;
  
  case 5:  //If friday
  if(SEX==1){
   First_Timer(); 
  }
  else{
   digitalWrite(Relay1, LOW);    
  }  
  break;
  
  case 6:  //If saturday
  if(SAB==1){
   First_Timer(); 
  }
  else{
   digitalWrite(Relay1, LOW);    
  }  
  break;
  
  case 7:  //If sunday
  if(DOM==1){
   First_Timer(); 
  }
  else{
   digitalWrite(Relay1, LOW);    
  }  
  break;
  
}//switch day




}//void loop

void First_Timer() {    //Custom function to check timer
if(onhour1 == offhour1 && onmin1==offmin1 && onsec1==offsec1){
   digitalWrite(Relay1, LOW);
}

if(on_Time1 < off_Time1){
  
             if(Time >= on_Time1 && Time < off_Time1){  //Start
             digitalWrite(Relay1, HIGH);
             }
             else if(Time >= off_Time1) {
             digitalWrite(Relay1, LOW);
             }
             else{
             digitalWrite(Relay1, LOW);
             }
}
if (on_Time1 > off_Time1){

            if(Time >= on_Time1 && Time <= 235959){     //Start
            digitalWrite(Relay1, HIGH);  
            }
            else if(Time < off_Time1 ){
            digitalWrite(Relay1, HIGH);
            }
            else if(Time >= off_Time1 && Time < on_Time1){
            digitalWrite(Relay1, LOW);  
            }
}
}//First timer