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Real_Time_Clock_With_Alarm.ino
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Real_Time_Clock_With_Alarm.ino
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#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_time A0
#define bt_up A1
#define bt_down A2
#define bt_alarm A3
#define buzzer 8
// 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 AlarmHH = 21, AlarmMM = 22, AlarmSS = 23, setMode = 0, setAlarm = 0, alarmMode=0;
int stop =0, mode=0, flag=0;
//Eeprom Store Variable
uint8_t HH;
uint8_t MM;
byte bell_symbol[8] = {
B00100,
B01110,
B01110,
B01110,
B01110,
B11111,
B01000,
B00100};
byte thermometer_symbol[8] = {
B00100,
B01010,
B01010,
B01110,
B01110,
B11111,
B11111,
B01110};
void setup(){
// Setup Serial connection
Serial.begin(9600);
rtc.begin(); // memulai koneksi i2c dengan RTC
pinMode(bt_time, INPUT_PULLUP);
pinMode(bt_up, INPUT_PULLUP);
pinMode(bt_down, INPUT_PULLUP);
pinMode(bt_alarm, INPUT_PULLUP);
pinMode(buzzer, OUTPUT);
lcd.createChar(1, thermometer_symbol);
lcd.createChar(2, bell_symbol);
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(" Real Time Clock ");
lcd.setCursor (0,1);
lcd.print(" With Alarm ");
delay (2000);
lcd.clear();
stop=EEPROM.read(50);
if(stop==0){
}else{WriteEeprom ();}
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(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(" ");
if(mode==1){lcd.write(2);}
else{lcd.print(" ");}
lcd.print(" ");
lcd.write(1);
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();
//Alarm
if (alarmMode==1 && mode==1 && hh==AlarmHH && mm==AlarmMM && ss>=AlarmSS) {
digitalWrite(buzzer, HIGH);
delay (300);
digitalWrite(buzzer, LOW);
}else{digitalWrite(buzzer, LOW);}
delay (100);
}
void blinking (){
//BLINKING SCREEN
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(" "); }
//Alarm
if (setMode == 0 && setAlarm == 1){lcd.setCursor(6,0); lcd.print(" "); }
if (setMode == 0 && setAlarm == 2){lcd.setCursor(4,1); lcd.print(" "); }
if (setMode == 0 && setAlarm == 3){lcd.setCursor(7,1); lcd.print(" "); }
if (setMode == 0 && setAlarm == 4){lcd.setCursor(10,1);lcd.print(" "); }
}
//Seting Jam ,Tanggal,Alarm/Timer
void setupClock (void) {
if (setMode == 8){
lcd.setCursor (0,0);
lcd.print (F("Set Date Finish "));
lcd.setCursor (0,1);
lcd.print (F("Set Time Finish "));
delay (1000);
rtc.setTime (hh, mm, ss);
rtc.setDate (dd, bb, yy);
lcd.clear();
setMode = 0;
}
if (setAlarm == 5){
lcd.setCursor (0,0);
lcd.print (F("Set Alarm Finish"));
lcd.setCursor (0,1);
lcd.print (F("-EEPROM Updated-"));
WriteEeprom();
delay (2000);
lcd.clear();
setAlarm=0;
alarmMode=1;
}
if (setAlarm >0){ alarmMode=0;}
if(digitalRead (bt_time) == 0 && flag==0) {flag=1;
if(setAlarm>0){setAlarm=5;}
else{setMode = setMode+1;}
}
if(digitalRead (bt_alarm) == 0 && flag==0){flag=1;
if(setMode>0){setMode=8;}
else{setAlarm = setAlarm+1;}
lcd.clear();}
if(digitalRead (bt_time) == 1 && digitalRead (bt_alarm) == 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;
//Alarm
if (setMode==0 && setAlarm==1)mode=1;
if (setMode==0 && setAlarm==2 && AlarmHH<23)AlarmHH=AlarmHH+1;
if (setMode==0 && setAlarm==3 && AlarmMM<59)AlarmMM=AlarmMM+1;
if (setMode==0 && setAlarm==4 && AlarmSS<59)AlarmSS=AlarmSS+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;
rtc.setDOW(set_day);
}
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;
//Alarm
if (setMode==0 && setAlarm==1 )mode=0;
if (setMode==0 && setAlarm==2 && AlarmHH>0)AlarmHH=AlarmHH-1;
if (setMode==0 && setAlarm==3 && AlarmMM>0)AlarmMM=AlarmMM-1;
if (setMode==0 && setAlarm==4 && AlarmSS>0)AlarmSS=AlarmSS-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;
rtc.setDOW(set_day);
}
}
void setTimer (){
//Alarm
if (setMode == 0 && setAlarm >0){
lcd.setCursor (0,0);
lcd.print("Alarm ");
if(mode==0){lcd.print("Deactivate");}
else{lcd.print("Activated ");}
lcd.setCursor (4,1);
lcd.print((AlarmHH/10)%10);
lcd.print(AlarmHH % 10);
lcd.print(":");
lcd.print((AlarmMM/10)%10);
lcd.print(AlarmMM % 10);
lcd.print(":");
lcd.print((AlarmSS/10)%10);
lcd.print(AlarmSS % 10);
}
}
void ReadEeprom () {
AlarmHH=EEPROM.read(1);
AlarmMM=EEPROM.read(2);
AlarmSS=EEPROM.read(3);
mode=EEPROM.read(4);
}
void WriteEeprom () {
EEPROM.write(1,AlarmHH);
EEPROM.write(2,AlarmMM);
EEPROM.write(3,AlarmSS);
EEPROM.write(4,mode);
}