Alarm Clock

ABOUT THIS PROJECT

After designing the "Clock Set Date Time" and hearing the suggestion of ArduPic, I thought it would be a good idea and also useful, add a "wake-up alarm." A small change to the code and adding a few components: Here's "the Alarm Clock".

Compared to the previous project, I added a buzzer Piezzo, a diode LED, a resistor of 220 ohms, a button and as said before, I listened to the suggestion of "ArduPic" and I removed the resistance to "pull down."

Tools

1- Arduino

2- LCD I2C

3- Jumper Wires

4- Buzzer

5- LED

CODE:-

//************libraries**************//
#include <Wire.h>
#include <RTClib.h>
#include <LiquidCrystal_I2C.h>

//hussain alarabe// @hALarabe Telegram
LiquidCrystal_I2C lcd(0x27,20,4); // Display I2C 20 x 4
RTC_DS1307 RTC;

//************Button*****************//
int P1=6; // Button SET MENU'
int P2=7; // Button +
int P3=8; // Button -
int P4=9; // SWITCH Alarm

//**************Alarm***************//
#define LED 13
#define buzzer 10

//************Variables**************//
int hourupg;
int minupg;
int yearupg;
int monthupg;
int dayupg;
int menu =0;
int setAll =0;

uint8_t alarmHours = 0, alarmMinutes = 0; // Holds the current alarm time

void setup()
{

lcd.begin();
lcd.backlight();
lcd.clear();

pinMode(P1,INPUT_PULLUP); // https://www.arduino.cc/en/Tutorial/InputPullupSerial
pinMode(P2,INPUT_PULLUP);
pinMode(P3,INPUT_PULLUP);
pinMode(P4,INPUT_PULLUP);
pinMode(LED,OUTPUT);
pinMode(buzzer, OUTPUT); // Set buzzer as an output
printAllOff();
Serial.begin(9600);
Wire.begin();
RTC.begin();

if (! RTC.isrunning()) {
Serial.println("RTC is NOT running!");
// Set the date and time at compile time
RTC.adjust(DateTime(__DATE__, __TIME__));
}
// RTC.adjust(DateTime(__DATE__, __TIME__)); //removing "//" to adjust the time
// The default display shows the date and time
int menu=0;
}

void loop()
{

// check if you press the SET button and increase the menu index
if(digitalRead(P1)== LOW)
{
menu=menu+1;
}
if((digitalRead(P2)== LOW)&&(digitalRead(P3)== LOW))
{

DisplaySetHourAll();
DisplaySetMinuteAll();
lcd.clear();
lcd.setCursor(5,0);
lcd.print("ALARM");
lcd.setCursor(5,1);
lcd.print(alarmHours, DEC);
lcd.print(":");
lcd.print(alarmMinutes, DEC);
delay(1000);
lcd.clear();
}
// in which subroutine should we go?
if (menu==0)
{
DisplayDateTime(); // void DisplayDateTime
Alarm(); // Alarm control
}
if (menu==1)
{
DisplaySetHour();
}
if (menu==2)
{
DisplaySetMinute();
}
if (menu==3)
{
DisplaySetYear();
}
if (menu==4)
{
DisplaySetMonth();
}
if (menu==5)
{
DisplaySetDay();
}
if (menu==6)
{
StoreAgg();
delay(500);
menu=0;
}
delay(100);
}

void DisplayDateTime ()
{
// We show the current date and time
DateTime now = RTC.now();

lcd.setCursor(0, 2);
lcd.print("Hour : ");

if (now.hour()<=9)
{
lcd.print("0");
}
lcd.print(now.hour(), DEC);
hourupg=now.hour();
lcd.print(":");
if (now.minute()<=9)
{
lcd.print("0");
}
lcd.print(now.minute(), DEC);
minupg=now.minute();
lcd.print(":");
if (now.second()<=9)
{
lcd.print("0");
}
lcd.print(now.second(), DEC);


lcd.setCursor(0, 1);
lcd.print("Date : ");
if (now.day()<=9)
{
lcd.print("0");
}
lcd.print(now.day(), DEC);
dayupg=now.day();
lcd.print("/");
if (now.month()<=9)
{
lcd.print("0");
}
lcd.print(now.month(), DEC);
monthupg=now.month();
lcd.print("/");
lcd.print(now.year(), DEC);
yearupg=now.year();

char DOW[][10]={"Sunday ","Monday ","Tuesday ","Wednesday","Thursday ","Friday ","Saturday "};
lcd.setCursor(0, 0);
lcd.print("Day : ");
lcd.print(DOW[now.dayOfTheWeek()]); // if it appears error in the code, enter the code given below
//lcd.print(DOW[now.dayOfWeek()]);
}

void DisplaySetHour()
{
// time setting
lcd.clear();
DateTime now = RTC.now();
if(digitalRead(P2)==LOW)
{
if(hourupg==23)
{
hourupg=0;
}
else
{
hourupg=hourupg+1;
}
}
if(digitalRead(P3)==LOW)
{
if(hourupg==0)
{
hourupg=23;
}
else
{
hourupg=hourupg-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set time:");
lcd.setCursor(0,1);
lcd.print(hourupg,DEC);
delay(200);
}

void DisplaySetMinute()
{
// Setting the minutes
lcd.clear();
if(digitalRead(P2)==LOW)
{
if (minupg==59)
{
minupg=0;
}
else
{
minupg=minupg+1;
}
}
if(digitalRead(P3)==LOW)
{
if (minupg==0)
{
minupg=59;
}
else
{
minupg=minupg-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set Minutes:");
lcd.setCursor(0,1);
lcd.print(minupg,DEC);
delay(200);
}

void DisplaySetYear()
{
// setting the year
lcd.clear();
if(digitalRead(P2)==LOW)
{
yearupg=yearupg+1;
}
if(digitalRead(P3)==LOW)
{
yearupg=yearupg-1;
}
lcd.setCursor(0,0);
lcd.print("Set Year:");
lcd.setCursor(0,1);
lcd.print(yearupg,DEC);
delay(200);
}

void DisplaySetMonth()
{
// Setting the month
lcd.clear();
if(digitalRead(P2)==LOW)
{
if (monthupg==12)
{
monthupg=1;
}
else
{
monthupg=monthupg+1;
}
}
if(digitalRead(P3)==LOW)
{
if (monthupg==1)
{
monthupg=12;
}
else
{
monthupg=monthupg-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set Month:");
lcd.setCursor(0,1);
lcd.print(monthupg,DEC);
delay(200);
}

void DisplaySetDay()
{
// Setting the day
lcd.clear();
if(digitalRead(P2)==LOW)
{
if (dayupg==31)
{
dayupg=1;
}
else
{
dayupg=dayupg+1;
}
}
if(digitalRead(P3)==LOW)
{
if (dayupg==1)
{
dayupg=31;
}
else
{
dayupg=dayupg-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set Day:");
lcd.setCursor(0,1);
lcd.print(dayupg,DEC);
delay(200);
}

void StoreAgg()
{
// Variable saving
lcd.clear();
lcd.setCursor(0,0);
lcd.print("SAVING IN");
lcd.setCursor(0,1);
lcd.print("PROGRESS");
RTC.adjust(DateTime(yearupg,monthupg,dayupg,hourupg,minupg,0));
delay(200);
}
void DisplaySetHourAll()// Setting the alarm minutes
{
while(digitalRead(P1)==HIGH){

lcd.clear();

if(digitalRead(P2)==LOW)
{
if(alarmHours==23)
{
alarmHours=0;
}
else
{
alarmHours=alarmHours+1;
}
}
if(digitalRead(P3)==LOW)
{
if(alarmHours==0)
{
alarmHours=23;
}
else
{
alarmHours=alarmHours-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set HOUR Alarm:");
lcd.setCursor(0,1);
lcd.print(alarmHours,DEC);
delay(200);
}
delay(200);
}

void DisplaySetMinuteAll()// Setting the alarm minutes
{
while(digitalRead(P1)==HIGH){

lcd.clear();
if(digitalRead(P2)==LOW)
{
if (alarmMinutes==59)
{
alarmMinutes=0;
}
else
{
alarmMinutes=alarmMinutes+1;
}
}
if(digitalRead(P3)==LOW)
{
if (alarmMinutes==0)
{
alarmMinutes=59;
}
else
{
alarmMinutes=alarmMinutes-1;
}
}
lcd.setCursor(0,0);
lcd.print("Set MIN. Alarm:");
lcd.setCursor(0,1);
lcd.print(alarmMinutes,DEC);
delay(200);
}
delay(200);
}
void printAllOn(){
lcd.setCursor(0,3);
lcd.print("Alarm: ");



if (alarmHours <= 9)
{
lcd.print("0");
}
lcd.print(alarmHours, DEC);

lcd.print(":");
if (alarmMinutes <= 9)
{
lcd.print("0");
}
lcd.print(alarmMinutes, DEC);

}
void printAllOff() {
lcd.setCursor(0, 3);
lcd.print("Alarm: Off ");
}
void Alarm(){
if(digitalRead(P4)== LOW)
{
setAll=setAll1
}
if (setAll==0)
{
printAllOff();
noTone (buzzer);
digitalWrite(LED,LOW);
}
if (setAll==1)


printAllOn();

DateTime now = RTC.now();
if ( now.hour() == alarmHours && now.minute() == alarmMinutes )
{
lcd.noBacklight();
DateTime now = RTC.now();
digitalWrite(LED,HIGH);
tone(buzzer,880); //play the note "A5" (LA5)
delay (300);
tone(buzzer,698); //play the note "F6" (FA5)
lcd.backlight();

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


if (setAll==2)
{
setAll=0;
}
delay(200);
}