How can i add a beep sound every hour.please help

[n0_one]

can somone help me about my code i want to add a beep sound every hour

[UKHeliBob]

Welcome to the forum

Please post your code follow ingthe advice given in the link below when posting code, in particular the section entitled 'Posting code and common code problems'

Use code tags (the </> icon above the compose window) to make it easier to read and copy for examination

How to get the best out of this forum

See also FAQ - Arduino Forum for general rules on forum behaviour and etiquette. Hello, Welcome to the Arduino Forum. This guide explains how to get the best out of this forum. Please read and follow the instructions below. Being new here you might think this is having rules for the sake of rules, but that is not the case. If you don’t follow the guidelines all that happens is there is a long exchange of posts while we try to get you to tell us what we need in order to help you, which is fru…

[n0_one]

i cannot upload my code because the system says. "Sorry, new users can only put 2 links in a post."

[UKHeliBob]

Don't link to your code if that is what you are trying to do, post it here in code tags, which is the preferred method

[n0_one]

#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
#define LED 9

// Init DS3231
DS3231 rtc(SDA, SCL);

// Init a Time-data structure
Time t; //pencacah string time()

int hh = 0;
int mm = 0;
int ss = 0;
int dd = 0;
int bb = 0;
int 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,
B00100,
B00100};

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(LED,OUTPUT);
pinMode(buzzer, OUTPUT);

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 (3,0);
lcd.print(" Welcome ");
lcd.setCursor (0,1);
lcd.print(" to our project ");
delay (5000);
lcd.clear();

stop=EEPROM.read(50);
if(stop==0){
}else{WriteEeprom ();}

EEPROM.write(50,0);

ReadEeprom();
//Set RTC Untuk Pertama kali
//rtcsetDOW(2); // Set Day-of-Week to SUNDAY
//rtcsetTime (00, 9, 50);
//rtcsetDate(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.print(rtc.getTemp(),0);
lcd.write(223);
lcd.print("C");
lcd.print(" ");

lcd.setCursor(1,1);
lcd.print(Day);
lcd.print(" ");
lcd.print((bb/10)%10);
lcd.print(bb % 10);
lcd.print("/");
lcd.print((dd/10)%10);
lcd.print(dd % 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(LED, HIGH);
tone(buzzer,800);
delay (1000);
tone(buzzer,698);
}

else{
noTone(buzzer);
digitalWrite(LED, 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(" "); }
}

//
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"));
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);
}

[UKHeliBob]

Did you miss the suggestion to post the code in code tags ?

Here is your code Auto Formatted in the IDE and posted in code tags. Note how much easier it is to read and copy for examination if required

#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
#define LED 9

// Init DS3231
DS3231 rtc(SDA, SCL);

// Init a Time-data structure
Time t; //pencacah string time()

int hh = 0;
int mm = 0;
int ss = 0;
int dd = 0;
int bb = 0;
int 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,
  B00100,
  B00100
};

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(LED, OUTPUT);
  pinMode(buzzer, OUTPUT);
  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 (3, 0);
  lcd.print(" Welcome ");
  lcd.setCursor (0, 1);
  lcd.print(" to our project ");
  delay (5000);
  lcd.clear();
  stop = EEPROM.read(50);
  if (stop == 0)
  {
  }
  else
  {
    WriteEeprom ();
  }
  EEPROM.write(50, 0);
  ReadEeprom();
  //Set RTC Untuk Pertama kali
  //rtcsetDOW(2); // Set Day-of-Week to SUNDAY
  //rtcsetTime (00, 9, 50);
  //rtcsetDate(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.print(rtc.getTemp(), 0);
    lcd.write(223);
    lcd.print("C");
    lcd.print(" ");
    lcd.setCursor(1, 1);
    lcd.print(Day);
    lcd.print(" ");
    lcd.print((bb / 10) % 10);
    lcd.print(bb % 10);
    lcd.print("/");
    lcd.print((dd / 10) % 10);
    lcd.print(dd % 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(LED, HIGH);
    tone(buzzer, 800);
    delay (1000);
    tone(buzzer, 698);
  }
  else
  {
    noTone(buzzer);
    digitalWrite(LED, 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(" ");
  }
}

//
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"));
    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);
}

[n0_one]

thank you im sorry i dont know.

[lastchancename]

That’s why you read before you write.

[er_name_not_found]

Before you set the hour variable, check it against the new value
If they are different, then beep