4 Stage Timer With DS3231RTC Module.




Componet List
1-Arduino Uno or Arduino Nano
2-DS3231 RTC Module
3-16x2 LCD screen
4-5v 2A DC Regulated power Supply
5- 5v DC, 10A single Channel Relay Module 
6-ON/OFF Switch
7-Normaly open Push buttons-4 Numbers
8-Green LED with Holder
9-10 K Preset
10-100 Ohm Resistance
11-10 A barrel fuse with Holder
12-13 A /AC Socket Outlet
13-PG Gland
14-3 core 4 mm copper flexible cable.
15-13 A ,3 pin Plug
16- Plastic Mounting screws.
17-8"x 5" Size PVC junction Box.
18-5 Volt DC Buzzer
19-4 mm square single core wire
20-Female Header Connector.

------------------------------------------------


 #include <DS3231.h>//Memanggil RTC3231 Library

#include <Wire.h>  // i2C Conection Library

#include <LiquidCrystal.h> //Libraries

#include <EEPROM.h>


LiquidCrystal lcd(2, 3, 4, 5, 6, 7); //Arduino pins to lcd


#define bt_clock  A0

#define bt_up     A1

#define bt_down   A2

#define bt_timer  A3


#define relay 8

#define buzzer 13


// Init DS3231

DS3231  rtc(SDA, SCL);


// Init a Time-data structure

Time  t; //pencacah string time()


int hh = 0, mm = 0, ss = 0, dd = 0, bb = 0, set_day;

int yy = 0;

String Day = "  ";


int StartHH  = 0, StartMM  = 0, FinishHH  = 0, FinishMM  = 0, setMode = 0, setAlarm = 0, alarmMode=1;

int Start1HH, Start1MM, Finish1HH, Finish1MM;

int Start2HH, Start2MM, Finish2HH, Finish2MM;

int Start3HH, Start3MM, Finish3HH, Finish3MM;

int Start4HH, Start4MM, Finish4HH, Finish4MM;


int timer1, timer2, timer3, timer4;


int stop =0, mode=0, flag=0;


void setup(){

rtc.begin(); // memulai koneksi i2c dengan RTC


pinMode(bt_clock, INPUT_PULLUP);

pinMode(bt_up,    INPUT_PULLUP);

pinMode(bt_down,  INPUT_PULLUP);

pinMode(bt_timer, INPUT_PULLUP);


pinMode(relay, OUTPUT);

digitalWrite(relay, HIGH);


pinMode(buzzer, OUTPUT);

  

  lcd.begin(16, 2); // Configura lcd numero columnas y filas

  lcd.setCursor(0,0);  //Show "TIME" on the LCD


  lcd.setCursor (0,0);

  lcd.print("ANOKHAUTOMATION");

  lcd.setCursor (0,1);

  lcd.print("4 STAGE TIMER");

  delay (4000);

  lcd.clear();


stop=EEPROM.read(50);  

if(stop==0){  

}else{

mode=1;WriteEeprom ();delay (20);

mode=2;WriteEeprom ();delay (20);

mode=3;WriteEeprom ();delay (20);

mode=4;WriteEeprom ();delay (20);

mode=0;

}

EEPROM.write(50,0); 


ReadEeprom();

//Set RTC Untuk Pertama kali

//rtc.setDOW(2);     // Set Day-of-Week to SUNDAY

//rtc.setTime (00, 9, 50); 

//rtc.setDate(12, 11, 2017);  

}


void loop(){  

t = rtc.getTime();

Day = rtc.getDOWStr(1);


if (setMode == 0){

hh = t.hour,DEC;

mm = t.min,DEC;

ss = t.sec,DEC;

dd = t.date,DEC;

bb = t.mon,DEC;

yy = t.year,DEC;

//if(t.hour>12){hh=t.hour-12;}// for removing 24 houre

//else{hh=t.hour;}

}  


  if(setAlarm==0){

  lcd.setCursor(0,0); 

  lcd.print((hh/10)%10);

  lcd.print(hh % 10); 

  lcd.print(":");

  lcd.print((mm/10)%10);

  lcd.print(mm % 10);

  lcd.print(":");

  lcd.print((ss/10)%10);

  lcd.print(ss % 10); 

  lcd.print("  T:"); 

  lcd.print(rtc.getTemp(),0);

  lcd.write(223); 

  lcd.print("C");

  lcd.print("  "); 


  lcd.setCursor(1,1);

  lcd.print(Day);

  lcd.print(" ");

  lcd.print((dd/10)%10);

  lcd.print(dd % 10); 

  lcd.print("/");

  lcd.print((bb/10)%10);

  lcd.print(bb % 10);

  lcd.print("/"); 

  lcd.print((yy/1000)%10);

  lcd.print((yy/100)%10);

  lcd.print((yy/10)%10);

  lcd.print(yy % 10);

  }



setupClock();

setTimer();

delay (100);

blinking();


//Timer1 ON

if (timer1==1 && alarmMode==1 && hh==Start1HH && mm==Start1MM)  {digitalWrite(relay, LOW);}

//Timer1 OFF

if (timer1==1 && alarmMode==1 && hh==Finish1HH && mm==Finish1MM){digitalWrite(relay, HIGH);}


//Timer2 ON

if (timer2==1 && alarmMode==1 && hh==Start2HH && mm==Start2MM)  {digitalWrite(relay, LOW);}

//Timer2 OFF

if (timer2==1 && alarmMode==1 && hh==Finish2HH && mm==Finish2MM){digitalWrite(relay, HIGH);}


//Timer3 ON

if (timer3==1 && alarmMode==1 && hh==Start3HH && mm==Start3MM)  {digitalWrite(relay, LOW);}

//Timer3 OFF

if (timer3==1 && alarmMode==1 && hh==Finish3HH && mm==Finish3MM){digitalWrite(relay, HIGH);}


//Timer4 ON

if (timer4==1 && alarmMode==1 && hh==Start4HH && mm==Start4MM)  {digitalWrite(relay, LOW);}

//Timer4 OFF

if (timer4==1 && alarmMode==1 && hh==Finish4HH && mm==Finish4MM){digitalWrite(relay, HIGH);}


delay (100);

digitalWrite(buzzer, LOW);

}


void blinking (){

//BLINKING SCREEN

//Set Clock

if (setAlarm <2 && setMode == 1){lcd.setCursor(0,0);  lcd.print("  ");}

if (setAlarm <2 && setMode == 2){lcd.setCursor(3,0);  lcd.print("  ");}

if (setAlarm <2 && setMode == 3){lcd.setCursor(6,0);  lcd.print("  ");}

if (setAlarm <2 && setMode == 4){lcd.setCursor(1,1);  lcd.print("   ");}

if (setAlarm <2 && setMode == 5){lcd.setCursor(5,1);  lcd.print("  ");}

if (setAlarm <2 && setMode == 6){lcd.setCursor(8,1);  lcd.print("  ");}

if (setAlarm <2 && setMode == 7){lcd.setCursor(11,1); lcd.print("    "); }


//Set Timer

if (setMode == 0 && setAlarm == 1 && mode==0){lcd.setCursor(2,1); lcd.print("  "); }

if (setMode == 0 && setAlarm == 2 && mode==0){lcd.setCursor(6,1); lcd.print("  "); }

if (setMode == 0 && setAlarm == 3 && mode==0){lcd.setCursor(10,1); lcd.print("  "); }

if (setMode == 0 && setAlarm == 4 && mode==0){lcd.setCursor(13,1); lcd.print("  "); }


if (setMode == 0 && setAlarm == 1 && mode>0){lcd.setCursor(11,0); lcd.print("  "); }

if (setMode == 0 && setAlarm == 2 && mode>0){lcd.setCursor(14,0); lcd.print("  "); }

if (setMode == 0 && setAlarm == 3 && mode>0){lcd.setCursor(11,1); lcd.print("  "); }

if (setMode == 0 && setAlarm == 4 && mode>0){lcd.setCursor(14,1); lcd.print("  "); }

}


//Seting Jam ,Tanggal,Alarm/Timer

void setupClock (void) {

   

    if (setMode == 8){

    lcd.setCursor (0,0);

    lcd.print ("Set Time Finish ");

    lcd.setCursor (0,1);

    lcd.print ("Set Date Finish ");

    delay (1000);

    rtc.setTime (hh, mm, ss);

    rtc.setDate (dd, bb, yy);  

    lcd.clear();

    setMode = 0;

    }

    

 if (setAlarm >0){alarmMode=0;}

    

 if(digitalRead (bt_clock) == 0 && flag==0) {flag=1;

 if(setAlarm>0){WriteEeprom(); setAlarm=1; mode =5;}

 else{setMode = setMode+1;}

 digitalWrite(buzzer, HIGH);

 }

  

 if(digitalRead (bt_timer) == 0 && flag==0){flag=1;

 if(setMode>0){setMode=8;}

  else{

  setAlarm = setAlarm+1;

  if(setAlarm>4){setAlarm=1; 

  WriteEeprom ();

  mode=mode+1;

  ReadEeprom();

  }

  } 

  lcd.clear();

  digitalWrite(buzzer, HIGH);

  } 


    if(setAlarm == 1 && mode==5){

    lcd.setCursor (0,0);

    lcd.print ("Set Timer Finish");

    lcd.setCursor (0,1);

    lcd.print ("-EEPROM Updated-");

    delay (2000); 

    lcd.clear();

    setAlarm=0;

    mode =0;

    alarmMode=1;

    }


if(digitalRead (bt_clock) == 1 && digitalRead (bt_timer) == 1){flag=0;}

  

 if(digitalRead (bt_up) == 0){                          

            if (setAlarm<2 && setMode==1)hh=hh+1; 

            if (setAlarm<2 && setMode==2)mm=mm+1;

            if (setAlarm<2 && setMode==3)ss=ss+1;

            if (setAlarm<2 && setMode==4)set_day=set_day+1;

            if (setAlarm<2 && setMode==5)dd=dd+1;

            if (setAlarm<2 && setMode==6)bb=bb+1;

            if (setAlarm<2 && setMode==7)yy=yy+1;

            //Timer

            if (mode==0 && setMode==0 && setAlarm==1)timer1=1;

            if (mode==0 && setMode==0 && setAlarm==2)timer2=1;

            if (mode==0 && setMode==0 && setAlarm==3)timer3=1;

            if (mode==0 && setMode==0 && setAlarm==4)timer4=1;

             

            if (mode>0 && setMode==0 && setAlarm==1)StartHH=StartHH+1;

            if (mode>0 && setMode==0 && setAlarm==2)StartMM=StartMM+1;

            if (mode>0 && setMode==0 && setAlarm==3)FinishHH=FinishHH+1;

            if (mode>0 && setMode==0 && setAlarm==4)FinishMM=FinishMM+1;


if(hh>23)hh=0;

if(mm>59)mm=0;

if(ss>59)ss=0;

if(set_day>7)set_day=0;

if(dd>31)dd=0;

if(bb>12)bb=0;

if(yy>2030)yy=2000;

if(StartHH>23)StartHH=0;

if(StartMM>59)StartMM=0;

if(FinishHH>23)FinishHH=0;

if(FinishMM>59)FinishMM=0;

rtc.setDOW(set_day);

digitalWrite(buzzer, HIGH);

 }        


if(digitalRead (bt_down) == 0){                                      

            if (setAlarm<2 && setMode==1)hh=hh-1; 

            if (setAlarm<2 && setMode==2)mm=mm-1;

            if (setAlarm<2 && setMode==3)ss=ss-1;

            if (setAlarm<2 && setMode==4)set_day=set_day-1;

            if (setAlarm<2 && setMode==5)dd=dd-1;

            if (setAlarm<2 && setMode==6)bb=bb-1;

            if (setAlarm<2 && setMode==7)yy=yy-1;

            //Timer

            if (mode==0 && setMode==0 && setAlarm==1)timer1=0;

            if (mode==0 && setMode==0 && setAlarm==2)timer2=0;

            if (mode==0 && setMode==0 && setAlarm==3)timer3=0;

            if (mode==0 && setMode==0 && setAlarm==4)timer4=0;

            

            if (mode>0 && setMode==0 && setAlarm==1)StartHH=StartHH-1;

            if (mode>0 && setMode==0 && setAlarm==2)StartMM=StartMM-1;

            if (mode>0 && setMode==0 && setAlarm==3)FinishHH=FinishHH-1;

            if (mode>0 && setMode==0 && setAlarm==4)FinishMM=FinishMM-1;


if(hh<0)hh=23;

if(mm<0)mm=59;

if(ss<0)ss=59;

if(set_day<0)set_day=7;

if(dd<0)dd=31;

if(bb<0)bb=12;

if(yy<0)yy=2030;

if(StartHH<0)StartHH=23;

if(StartMM<0)StartMM=59;

if(FinishHH<0)FinishHH=23;

if(FinishMM<0)FinishMM=59;

rtc.setDOW(set_day);

digitalWrite(buzzer, HIGH); 

 }

 

}


void setTimer (){

//Timer

if (setMode == 0 && setAlarm >0 && mode>0){

  lcd.setCursor (0,0);

  lcd.print("Timer");

  lcd.print(mode);

  lcd.print(" On :");

  lcd.setCursor (11,0);

  lcd.print((StartHH/10)%10);

  lcd.print(StartHH % 10);

  lcd.print(":");

  lcd.print((StartMM/10)%10);

  lcd.print(StartMM % 10);


  lcd.setCursor (0,1);

  lcd.print("Timer");

  lcd.print(mode);

  lcd.print(" Off:");

  lcd.setCursor (11,1);

  lcd.print((FinishHH/10)%10);

  lcd.print(FinishHH % 10);

  lcd.print(":");

  lcd.print((FinishMM/10)%10);

  lcd.print(FinishMM % 10);

 }


if (setMode == 0 && setAlarm >0 && mode==0){

  lcd.setCursor (0,0);

  lcd.print(" T1  T2  T3  T4 ");

  lcd.setCursor (0,1);

    if(timer1==1){lcd.print("  A");}

  else{lcd.print("  D");}

   

    if(timer2==1){lcd.print("   A");}

  else{lcd.print("   D");}

  

    if(timer3==1){lcd.print("   A");}

  else{lcd.print("   D");}

  

    if(timer4==1){lcd.print("   A");}

  else{lcd.print("   D");}

}

}


void ReadEeprom() {

Start1HH=EEPROM.read(11);Start1MM=EEPROM.read(12);Finish1HH=EEPROM.read(13);Finish1MM=EEPROM.read(14);

Start2HH=EEPROM.read(21);Start2MM=EEPROM.read(22);Finish2HH=EEPROM.read(23);Finish2MM=EEPROM.read(24);

Start3HH=EEPROM.read(31);Start3MM=EEPROM.read(32);Finish3HH=EEPROM.read(33);Finish3MM=EEPROM.read(34);

Start4HH=EEPROM.read(41);Start4MM=EEPROM.read(42);Finish4HH=EEPROM.read(43);Finish4MM=EEPROM.read(44);


if(mode==1){StartHH=Start1HH, StartMM=Start1MM, FinishHH=Finish1HH,FinishMM=Finish1MM;}

if(mode==2){StartHH=Start2HH, StartMM=Start2MM, FinishHH=Finish2HH,FinishMM=Finish2MM;}

if(mode==3){StartHH=Start3HH, StartMM=Start3MM, FinishHH=Finish3HH,FinishMM=Finish3MM;}

if(mode==4){StartHH=Start4HH, StartMM=Start4MM, FinishHH=Finish4HH,FinishMM=Finish4MM;}


timer1=EEPROM.read(1);

timer2=EEPROM.read(2);

timer3=EEPROM.read(3);

timer4=EEPROM.read(4);

}


void WriteEeprom() {

if(mode==1){EEPROM.write(11,StartHH);EEPROM.write(12,StartMM);EEPROM.write(13,FinishHH);EEPROM.write(14,FinishMM);}

if(mode==2){EEPROM.write(21,StartHH);EEPROM.write(22,StartMM);EEPROM.write(23,FinishHH);EEPROM.write(24,FinishMM);}

if(mode==3){EEPROM.write(31,StartHH);EEPROM.write(32,StartMM);EEPROM.write(33,FinishHH);EEPROM.write(34,FinishMM);}

if(mode==4){EEPROM.write(41,StartHH);EEPROM.write(42,StartMM);EEPROM.write(43,FinishHH);EEPROM.write(44,FinishMM);}


EEPROM.write(1,timer1);

EEPROM.write(2,timer2);

EEPROM.write(3,timer3);

EEPROM.write(4,timer4);

}



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