<span style="font-size: 14pt;">//Automatic School Bell using Arduino Uno, RTC, and 16x2 LCD
//Download Libraries
// https://www.electroniclinic.com/arduino-libraries-download-and-projects-they-are-used-in-project-codes/
/*
* Connections of the DS3231 with Arduino Uno
* connect SDA of the RTC with A4
* connect SCL of the RTC with A5
*/
#include <LiquidCrystal.h>
#include "RTClib.h"
#include <Wire.h>
#include<EEPROM.h>
RTC_DS1307 rtc; // you can also use RTC_DS1307
LiquidCrystal lcd(13, 12, 6, 5, 4, 3);// Pins used for RS,E,D4,D5,D6,D7 and the r/w pin is connected with the ground
char* mySubject[]={"MATHS", "ENG","BIO","PHY","CHEM","IT LAB","HIST","GEO"};
char daysOfTheWeek[7][12] = {"SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT"};
int subject[7];
int buzzer = 2; // The Buzzer is connected with the Arduino's digital pin 2.
int push_button1 = A0;
int push_button2 = A1;
int push_button3 = A2;
int push_button4 = A3;
int push_button1_state = 0;
int push_button2_state = 0;
int push_button3_state = 0;
int push_button4_state = 0;
int newTime,newHour,prevTime=0,prevHour=0,a=0,hoursE=0,hoursH=0, countTime=60;
int i=0,j=0,k=0,var,nextSUB=0,value,pos=0,periodtime=0,starttime=0,endtime=0,totaltime=0,break1=0,break2=0;
int monA=6,tueA=12,wedA=17,thuA=22,friA=27,satA=32,brk1,brk2,noPeriod=0;
int HOUR,MINUT,SECOND,timeH,timeM,setT=0,breakR=0;
byte Aalpha[8] ={ 0b00000,
0b01110,
0b10001,
0b11111,
0b10001,
0b10001,
0b00000,
0b00000
};
byte Balpha[8]={ 0b00000,
0b11100,
0b10010,
0b11100,
0b10010,
0b11100,
0b00000,
0b00000};
byte Calpha[8]={ 0b00000,
0b01110,
0b10000,
0b10000,
0b10000,
0b01110,
0b00000,
0b00000};
byte Dalpha[8] ={ 0b00000,
0b11100,
0b10010,
0b10010,
0b10010,
0b11100,
0b00000,
0b00000};
byte Ealpha[8] ={0b00000,
0b11110,
0b10000,
0b11100,
0b10000,
0b11110,
0b00000,
0b00000};
byte Falpha[8] ={0b00000,
0b11110,
0b10000,
0b11100,
0b10000,
0b10000,
0b00000,
0b00000};
byte Galpha[8]={0b00000,
0b01110,
0b10000,
0b10110,
0b10010,
0b01110,
0b00000,
0b00000};
byte Halpha[8] ={ 0b00000,
0b10001,
0b10001,
0b11111,
0b10001,
0b10001,
0b00000,
0b00000};
byte Ialpha[8]={0b00000,
0b01110,
0b00100,
0b00100,
0b00100,
0b01110,
0b00000,
0b00000};
byte Lalpha[8]={ 0b00000,
0b10000,
0b10000,
0b10000,
0b10000,
0b11110,
0b00000,
0b00000};
byte Malpha[8] ={ 0b00000,
0b10001,
0b11011,
0b10101,
0b10001,
0b10001,
0b00000,
0b00000};
byte Nalpha[8] ={0b00000,
0b10001,
0b11001,
0b10101,
0b10011,
0b10001,
0b00000,
0b00000};
byte Oalpha[8]={ 0b00000,
0b01110,
0b10001,
0b10001,
0b10001,
0b01110,
0b00000,
0b00000};
byte Palpha[8]={0b00000,
0b11100,
0b10010,
0b11100,
0b10000,
0b10000,
0b00000,
0b00000};
byte Ralpha[8]={0b00000,
0b11110,
0b10001,
0b11110,
0b10100,
0b10010,
0b00000,
0b00000};
byte Salpha[8] ={ 0b00000,
0b01110,
0b10000,
0b01110,
0b00001,
0b01110,
0b00000,
0b00000};
byte Talpha[8] ={0b00000,
0b11111,
0b00100,
0b00100,
0b00100,
0b00100,
0b00000,
0b00000};
byte Ualpha[8]={ 0b00000,
0b10001,
0b10001,
0b10001,
0b10001,
0b01110,
0b00000,
0b00000};
byte Walpha[8] ={0b00000,
0b10001,
0b10001,
0b10101,
0b11011,
0b10001,
0b00000,
0b00000};
byte Yalpha[8]={0b00000,
0b10001,
0b10001,
0b01010,
0b00100,
0b00100,
0b00000,
0b00000};
byte next[8]={0b00000,
0b10000,
0b01000,
0b00100,
0b01000,
0b10000,
0b00000,
0b00000
};
void setup(){
Wire.begin();
rtc.begin();
Serial.begin(9600); //Software serial initialization
pinMode(push_button1, INPUT);
pinMode(push_button2, INPUT);
pinMode(push_button3, INPUT);
pinMode(push_button4, INPUT);
pinMode( buzzer, OUTPUT );
digitalWrite( buzzer, LOW );
lcd.begin(16,2);
lcd.setCursor(0,0);
lcd.print("E Clinic");
lcd.setCursor(0,1);
lcd.print(" TIME TABLE ");
delay(3000);
if (! rtc.isrunning()) {
Serial.println("RTC is NOT running!");
// following line sets the RTC to the date & time this sketch was compiled
rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
}
delay(3000);
lcd.clear();
lcd.setCursor(0,0);
lcd.print(" ENTER ALL INFO ");
lcd.setCursor(0,1);
lcd.print(" YES* NO# ");
}
void loop() {
push_button1_state = digitalRead(push_button1);
push_button2_state = digitalRead(push_button2);
push_button3_state = digitalRead(push_button3);
push_button4_state = digitalRead(push_button4);
if(push_button1_state==LOW){
pos=20;
DateTime now =rtc.now();
prevTime=now.minute();
prevHour=now.hour();
Serial.println(prevHour);
Serial.println(prevTime);
Serial.println(EEPROM.read(4));
lcd.clear();}
if(push_button4_state==LOW){
pos=30;
DateTime now =rtc.now();
prevTime=now.minute();
prevHour=now.hour();
hoursE = EEPROM.read(4);//Period time delay
Serial.println(prevHour);
Serial.println(prevTime);
Serial.println(EEPROM.read(4));
lcd.clear();}
while(pos==20){
pos=0;
delay(1000);
lcd.clear();
while(pos==0){
push_button1_state = digitalRead(push_button1);
push_button2_state = digitalRead(push_button2);
push_button3_state = digitalRead(push_button3);
push_button4_state = digitalRead(push_button4);
lcd.setCursor(0,0);
lcd.print("ENTER START TIME");
if(push_button1_state==LOW && pos==0){
lcd.setCursor(5,1);
starttime++;
printDigits2(starttime);
lcd.setCursor(8,1);
lcd.print("O' clock");
EEPROM.write(5,starttime);
delay(200);
if(starttime==24)
starttime=0;
}
if(push_button4_state==LOW && pos==0){
prevHour=starttime;
lcd.setCursor(0,0);
lcd.print(" *****SAVED**** ");
EEPROM.write(0,starttime);
Serial.println(starttime);
delay(1000);
pos=1;
lcd.clear();
break;
}
}
while(pos==1){
push_button1_state = digitalRead(push_button1);
push_button2_state = digitalRead(push_button2);
push_button3_state = digitalRead(push_button3);
push_button4_state = digitalRead(push_button4);
lcd.setCursor(0,0);
lcd.print(" ENTER END TIME ");
if(push_button1_state==LOW && pos==1){
lcd.setCursor(5,1);
endtime++;
printDigits2(endtime);
lcd.setCursor(7,1);
lcd.print("O' clock");
delay(200);
if(endtime==24)
endtime=0;
}
if(push_button4_state==LOW && pos==1){
lcd.setCursor(0,0);
lcd.print(" *****SAVED**** ");
EEPROM.write(1,endtime);
Serial.println(endtime);
delay(1000);
pos=2;
lcd.clear();
break;
}
}
while(pos==2){
push_button1_state = digitalRead(push_button1);
push_button2_state = digitalRead(push_button2);
push_button3_state = digitalRead(push_button3);
push_button4_state = digitalRead(push_button4);
lcd.setCursor(0,0);
lcd.print(" FIRST BRK TIME ");
if(push_button1_state==LOW && pos==2){
lcd.setCursor(5,1);
break1++;
printDigits2(break1);
lcd.setCursor(8,1);
lcd.print("minutes");
delay(200);
if(break1==40)
break1=0;
}
if(push_button4_state==LOW && pos==2){
lcd.setCursor(0,0);
lcd.print(" *****SAVED**** ");
EEPROM.write(2,break1);
Serial.println(break1);
delay(1000);
pos=3;
lcd.clear();
break;
}
}
while(pos==3){
push_button1_state = digitalRead(push_button1);
push_button2_state = digitalRead(push_button2);
push_button3_state = digitalRead(push_button3);
push_button4_state = digitalRead(push_button4);
lcd.setCursor(0,0);
lcd.print("SECOND BRK TIME ");
if(push_button1_state==LOW && pos==3){
lcd.setCursor(5,1);
break2++;
printDigits2(break2);
lcd.setCursor(8,1);
lcd.print("minutes");
delay(200);
if(break2==40)
break2=0;
}
if(push_button4_state==LOW && pos==3){
lcd.setCursor(0,0);
lcd.print(" *****SAVED**** ");
EEPROM.write(3,break2);
Serial.println(break2);
delay(1000);
pos=4;
lcd.clear();
break;
}
}
/*Slection of subject DAY wise*/
while(pos==4){
push_button1_state = digitalRead(push_button1);
push_button2_state = digitalRead(push_button2);
push_button3_state = digitalRead(push_button3);
push_button4_state = digitalRead(push_button4);
lcd.setCursor(0,0);
lcd.print("SLCT MONDAY SUB ");
if(push_button1_state==LOW && pos==4){
if(i>0){
i--;
delay(400);
lcd.setCursor(6,1);
lcd.print("");
}
lcd.setCursor(6,1);
lcd.print(mySubject[i]);
}
if(push_button2_state==LOW && pos==4){
if(i<7){
i++;
delay(400);
lcd.setCursor(6,1);
lcd.print("");
}
lcd.setCursor(6,1);
lcd.print(mySubject[i]);
}
if(push_button4_state==LOW && pos==4){
EEPROM.write(j+6,i);
lcd.setCursor(0,0);
lcd.print(" *****SAVED**** ");
Serial.print(j+6);
Serial.println(i);
delay(1000);
lcd.clear();
j++;
}
if(push_button3_state==LOW && pos==4){
lcd.setCursor(0,0);
lcd.print("*SUB SAVED MON*");
delay(1000);
lcd.setCursor(0,1);
lcd.print(" THANK YOU ");
pos=5;
delay(3000);
lcd.clear();
break;
}
}
/*Subject selection for TUESDAY*/
while(pos==5){
push_button1_state = digitalRead(push_button1);
push_button2_state = digitalRead(push_button2);
push_button3_state = digitalRead(push_button3);
push_button4_state = digitalRead(push_button4);
lcd.setCursor(0,0);
lcd.print("SLCT TUESDAY SUB");
if(push_button1_state==LOW && pos==5){
if(i>0){
i--;
delay(400);
lcd.setCursor(6,1);
lcd.print("");
}
lcd.setCursor(6,1);
lcd.print(mySubject[i]);
}
if(push_button2_state==LOW && pos==5){
if(i<7){
i++;
delay(400);
lcd.setCursor(6,1);
lcd.print("");
}
lcd.setCursor(6,1);
lcd.print(mySubject[i]);
}
if(push_button4_state==LOW && pos==5){
EEPROM.write(j+7,i);
lcd.setCursor(0,0);
lcd.print(" *****SAVED**** ");
Serial.print(j+7);
Serial.println(i);
delay(1000);
lcd.clear();
j++;
}
if(push_button3_state==LOW && pos==5){
lcd.setCursor(0,0);
lcd.print(" *SUB SAVED TUE* ");
delay(1000);
lcd.setCursor(0,1);
lcd.print("THANK YOU");
pos=6;
delay(3000);
lcd.clear();
break;
}
}
/*Subject selection for WEDNESDAY*/
while(pos==6){
push_button1_state = digitalRead(push_button1);
push_button2_state = digitalRead(push_button2);
push_button3_state = digitalRead(push_button3);
push_button4_state = digitalRead(push_button4);
lcd.setCursor(0,0);
lcd.print(" WEDNESDAY SUB ");
if(push_button1_state==LOW && pos==6){
if(i>0){
i--;
delay(400);
lcd.setCursor(6,1);
lcd.print("");
}
lcd.setCursor(6,1);
lcd.print(mySubject[i]);
}
if(push_button2_state==LOW && pos==6){
if(i<7){
i++;
delay(400);
lcd.setCursor(6,1);
lcd.print("");
}
lcd.setCursor(6,1);
lcd.print(mySubject[i]);
}
if(push_button4_state==LOW && pos==6){
EEPROM.write(j+7,i);
lcd.setCursor(0,0);
lcd.print(" *****SAVED**** ");
Serial.print(j+7);
Serial.println(i);
delay(1000);
lcd.clear();
j++;
}
if(push_button3_state==LOW && pos==6){
lcd.setCursor(0,0);
lcd.print(" *SUB SAVED WED* ");
delay(1000);
lcd.setCursor(0,1);
lcd.print("THANK YOU");
pos=7;
delay(3000);
lcd.clear();
break;
}
}
/*Subject selection for THUSDAY*/
while(pos==7){
push_button1_state = digitalRead(push_button1);
push_button2_state = digitalRead(push_button2);
push_button3_state = digitalRead(push_button3);
push_button4_state = digitalRead(push_button4);
lcd.setCursor(0,0);
lcd.print(" SLT THUSDAY SUB ");
if(push_button1_state==LOW && pos==7){
if(i>0){
i--;
delay(400);
lcd.setCursor(6,1);
lcd.print("");
}
lcd.setCursor(6,1);
lcd.print(mySubject[i]);
}
if(push_button2_state==LOW && pos==7){
if(i<7){
i++;
delay(400);
lcd.setCursor(6,1);
lcd.print("");
}
lcd.setCursor(6,1);
lcd.print(mySubject[i]);
}
if(push_button4_state==LOW && pos==7){
EEPROM.write(j+7,i);
lcd.setCursor(0,0);
lcd.print(" *****SAVED**** ");
Serial.print(j+7);
Serial.println(i);
delay(1000);
lcd.clear();
j++;
}
if(push_button3_state==LOW && pos==7){
lcd.setCursor(0,0);
lcd.print(" *SUB SAVED THU* ");
delay(1000);
lcd.setCursor(0,1);
lcd.print("THANK YOU");
pos=8;
delay(3000);
lcd.clear();
break;
}
}
/*Subject selection for FRIDAY*/
while(pos==8){
push_button1_state = digitalRead(push_button1);
push_button2_state = digitalRead(push_button2);
push_button3_state = digitalRead(push_button3);
push_button4_state = digitalRead(push_button4);
lcd.setCursor(0,0);
lcd.print(" SLT FRIDAY SUB ");
if(push_button1_state==LOW && pos==8){
if(i>0){
i--;
delay(400);
lcd.setCursor(6,1);
lcd.print("");
}
lcd.setCursor(6,1);
lcd.print(mySubject[i]);
}
if(push_button2_state==LOW && pos==8){
if(i<7){
i++;
delay(400);
lcd.setCursor(6,1);
lcd.print("");
}
lcd.setCursor(6,1);
lcd.print(mySubject[i]);
}
if(push_button4_state==LOW && pos==8){
EEPROM.write(j+7,i);
lcd.setCursor(0,0);
lcd.print(" *****SAVED**** ");
Serial.print(j+7);
Serial.println(i);
delay(1000);
lcd.clear();
j++;
}
if(push_button3_state==LOW && pos==8){
lcd.setCursor(0,0);
lcd.print(" *SUB SAVED FRI* ");
delay(1000);
lcd.setCursor(0,1);
lcd.print("THANK YOU");
pos=9;
delay(3000);
lcd.clear();
break;
}
}
/*Subject selection for SATURDAY*/
while(pos==9){
push_button1_state = digitalRead(push_button1);
push_button2_state = digitalRead(push_button2);
push_button3_state = digitalRead(push_button3);
push_button4_state = digitalRead(push_button4);
lcd.setCursor(0,0);
lcd.print("SLT SATURDAY SUB ");
if(push_button1_state==LOW && pos==9){
if(i>0){
i--;
delay(400);
lcd.setCursor(6,1);
lcd.print("");
}
lcd.setCursor(6,1);
lcd.print(mySubject[i]);
}
if(push_button2_state==LOW && pos==9){
if(i<7){
i++;
delay(400);
lcd.setCursor(6,1);
lcd.print("");
}
lcd.setCursor(6,1);
lcd.print(mySubject[i]);
}
if(push_button4_state==LOW && pos==9){
EEPROM.write(j+7,i);
lcd.setCursor(0,0);
lcd.print(" *****SAVED**** ");
Serial.print(j+7);
Serial.println(i);
delay(1000);
lcd.clear();
j++;
}
if(push_button3_state==LOW && pos==9){
lcd.setCursor(0,0);
lcd.print(" *SUB SAVED SAT* ");
delay(1000);
lcd.setCursor(0,1);
lcd.print("THANK YOU");
pos=30;
delay(3000);
lcd.clear();
break;
}
}
/*READING ALL THE DATA FROM THE INTERNAL EEPROM*/
starttime = EEPROM.read(0);
endtime = EEPROM.read(1);
break1 = EEPROM.read(2);
break2 = EEPROM.read(3);
hoursE = EEPROM.read(4);//Period time delay
int totalbreak=break1+ break2;
//totaltime=((endtime-starttime)*10 - totalbreak);
totaltime=((endtime-starttime)*60-totalbreak);
periodtime=totaltime/5;
EEPROM.write(4,periodtime);
Serial.println(EEPROM.read(4));
pos=30;
}
while(pos==30){
DateTime now =rtc.now();
hoursH=EEPROM.read(0);//start time in hour
newHour = now.hour();
newTime = now.minute();
//if(newHour == hoursH && newTime == 0){
if(newHour == hoursH && newTime <= 60){
prevTime=now.minute();
lcd.setCursor(0,0);
lcd.print("CLASS STARTED");
lcd.setCursor(0,1);
lcd.print(" ");
delay(3000);
lcd.clear();
while(1){
matchDAY();
}
}
else{
lcd.setCursor(0,0);
lcd.print("Waiting for...");
lcd.setCursor(5,1);
printDigits2(hoursH);
lcd.setCursor(8,1);
lcd.print("O' Clock");}
}
}
void matchDAY(){
DateTime now =rtc.now();
//Monday subject display
while(now.dayOfTheWeek()== 1){
currentTIME();
matchTIM();
value = EEPROM.read(monA);
ALLDays(now.dayOfTheWeek());
lcd.setCursor(0,0);
lcd.print(mySubject[value]);
if(noPeriod==2 && breakR==0){
brk1=EEPROM.read(2);
lcd.setCursor(0,0);
lcd.print("***BREAK TIME***");
while(1){
currentTIME();
if(newTime == prevTime + brk1){
prevTime=prevTime+brk1;
Serial.print("Break1");
Serial.println(prevTime);
noPeriod=0;
breakR=1;
lcd.clear();
break;
}
}
}
if(noPeriod==1 &&breakR==2){
breakR=0;
lcd.clear();
endsession();
while(1){
//End of the session
}
}
//hoursE
if(noPeriod==2 && breakR==1){
brk2=EEPROM.read(3);//time delay
lcd.setCursor(0,0);
lcd.print("***BREAK TIME***");
while(1){
currentTIME();
lcd.setCursor(11,0);
printDigits2(newTime);
printDigits2(now.second());
if(newTime== prevTime + brk2){
prevTime=prevTime+brk2;
Serial.print("Break2");
Serial.println(prevTime);
noPeriod=0;
breakR=2;
lcd.clear();
break;
}
}
}
else{
nextSUB = EEPROM.read(monA+1);
ALLSubjects(9);
if(noPeriod == 0 && breakR == 2)
ALLSubjects(8);
else
ALLSubjects(nextSUB);
}
}
// Tuesday subject display
while(now.dayOfTheWeek()== 2){
currentTIME();
matchTIM();
value = EEPROM.read(tueA);
ALLDays(now.dayOfTheWeek());
lcd.setCursor(0,0);
lcd.print(mySubject[value]);
if(noPeriod==2 && breakR==0){
brk1=EEPROM.read(2);
lcd.setCursor(0,0);
lcd.print("***BREAK TIME***");
while(1){
currentTIME();
if(newTime== prevTime + brk1){
prevTime=prevTime+brk1;
Serial.print("Break1");
Serial.println(prevTime);
noPeriod=0;
breakR=1;
lcd.clear();
break;
}
}
}
if(noPeriod==1 &&breakR==2){
breakR=0;
endsession();
while(1){
//End of the session
}
}
if(noPeriod==2 && breakR==1){
brk2=EEPROM.read(3);//time delay
lcd.setCursor(0,0);
lcd.print("***BREAK TIME***");
while(1){
currentTIME();
if(newTime== prevTime + brk2){
prevTime=prevTime+brk2;
Serial.print("Break2");
Serial.println(prevTime);
noPeriod=0;
breakR=2;
lcd.clear();
break;
}
}
}
else{
nextSUB = EEPROM.read(tueA+1);
ALLSubjects(9);
if(noPeriod == 0 && breakR == 2)
ALLSubjects(8);
else
ALLSubjects(nextSUB);
}
}
//Wednesday subject display
while(now.dayOfTheWeek()== 3){
currentTIME();
matchTIM();
value = EEPROM.read(wedA);
ALLDays(now.dayOfTheWeek());
lcd.setCursor(0,0);
lcd.print(mySubject[value]);
if(noPeriod==2 && breakR==0){
brk1=EEPROM.read(2);
lcd.setCursor(0,0);
lcd.print("***BREAK TIME***");
while(1){
currentTIME();
if(newTime== prevTime + brk1){
prevTime=prevTime+brk1;
Serial.print("Break1");
Serial.println(prevTime);
noPeriod=0;
breakR=1;
lcd.clear();
break;
}
}
}
if(noPeriod==1 &&breakR==2){
breakR=0;
endsession();
while(1){
//End of the session
}
}
if(noPeriod==2 && breakR==1){
brk2=EEPROM.read(3);//time delay
lcd.setCursor(0,0);
lcd.print("***BREAK TIME***");
while(1){
currentTIME();
if(newTime== prevTime + brk2){
prevTime=prevTime+brk2;
Serial.print("Break2");
Serial.println(prevTime);
noPeriod=0;
breakR=2;
lcd.clear();
break;
}
}
}
else{
nextSUB = EEPROM.read(wedA+1);
ALLSubjects(9);
if(noPeriod == 0 && breakR == 2)
ALLSubjects(8);
else
ALLSubjects(nextSUB);
}
}
// Thusday subject display
while(now.dayOfTheWeek()== 4){
currentTIME();
matchTIM();
value = EEPROM.read(thuA);
ALLDays(now.dayOfTheWeek());
lcd.setCursor(0,0);
lcd.print(mySubject[value]);
if(noPeriod==2 && breakR==0){
brk1=EEPROM.read(2);
lcd.setCursor(0,0);
lcd.print("***BREAK TIME***");
while(1){
currentTIME();
if(newTime== prevTime + brk1){
prevTime=prevTime+brk1;
Serial.print("Break1");
Serial.println(prevTime);
noPeriod=0;
breakR=1;
lcd.clear();
break;
}
}
}
if(noPeriod==1 &&breakR==2){
breakR=0;
endsession();
while(1){
//End of the session
}
}
if(noPeriod==2 && breakR==1){
brk2=EEPROM.read(3);//time delay
lcd.setCursor(0,0);
lcd.print("***BREAK TIME***");
while(1){
currentTIME();
if(newTime== prevTime + brk2){
prevTime=prevTime+brk2;
Serial.print("Break2");
Serial.println(prevTime);
noPeriod=0;
breakR=2;
lcd.clear();
break;
}
}
}
else{
nextSUB = EEPROM.read(thuA+1);
ALLSubjects(9);
if(noPeriod == 0 && breakR == 2)
ALLSubjects(8);
else
ALLSubjects(nextSUB);
}
}
//Friday subject display
while(now.dayOfTheWeek()== 5){
currentTIME();
matchTIM();
value = EEPROM.read(friA);
ALLDays(now.dayOfTheWeek());
lcd.setCursor(0,0);
lcd.print(mySubject[value]);
if(noPeriod==2 && breakR==0){
brk1=EEPROM.read(2);
lcd.setCursor(0,0);
lcd.print("***BREAK TIME***");
while(1){
currentTIME();
if(newTime== prevTime + brk1){
prevTime=prevTime+brk1;
Serial.print("Break1");
Serial.println(prevTime);
noPeriod=0;
breakR=1;
lcd.clear();
break;
}
}
}
if(noPeriod==1 &&breakR==2){
breakR=0;
endsession();
while(1){
//End of the session
}
}
if(noPeriod==2 && breakR==1){
brk2=EEPROM.read(3);//time delay
lcd.setCursor(0,0);
lcd.print("***BREAK TIME***");
while(1){
currentTIME();
if(newTime== prevTime + brk2){
prevTime=prevTime+brk2;
Serial.print("Break2");
Serial.println(prevTime);
noPeriod=0;
breakR=2;
lcd.clear();
break;
}
}
}
else{
nextSUB = EEPROM.read(friA+1);
ALLSubjects(9);
if(noPeriod == 0 && breakR == 2)
ALLSubjects(8);
else
ALLSubjects(nextSUB);
}
}
//Saturday subject display
while(now.dayOfTheWeek()== 6){
currentTIME();
matchTIM();
value = EEPROM.read(satA);
ALLDays(now.dayOfTheWeek());
lcd.setCursor(0,0);
lcd.print(mySubject[value]);
if(noPeriod==2 && breakR==0){
brk1=EEPROM.read(2);
lcd.setCursor(0,0);
lcd.print("***BREAK TIME***");
while(1){
currentTIME();
if(newTime== prevTime + brk1){
prevTime=prevTime+brk1;
Serial.print("Break1");
Serial.println(prevTime);
noPeriod=0;
breakR=1;
lcd.clear();
break;
}
}
}
if(noPeriod==1 &&breakR==2){
breakR=0;
endsession();
while(1){
//End of the session
}
}
if(noPeriod==2 && breakR==1){
brk2=EEPROM.read(3);//time delay
lcd.setCursor(0,0);
lcd.print("***BREAK TIME***");
while(1){
currentTIME();
if(newTime== prevTime + brk2){
prevTime=prevTime+brk2;
Serial.print("Break2");
Serial.println(prevTime);
noPeriod=0;
breakR=2;
lcd.clear();
break;
}
}
}
else{
nextSUB = EEPROM.read(satA+1);
ALLSubjects(9);
if(noPeriod == 0 && breakR == 2)
ALLSubjects(8);
else
ALLSubjects(nextSUB);
}
}
}
void currentTIME(){
lcd.setCursor(6,1);
lcd.print("");
DateTime now = rtc.now();
lcd.setCursor(8,1);
printDigits2(HOUR=now.hour());
lcd.print(":");
newHour=now.hour();
printDigits2(MINUT=now.minute());
lcd.print(":");
newTime = now.minute();
printDigits2(SECOND=now.second());
delay(800);
currentDAY();
delay(800);
}
void currentDAY(){
DateTime now = rtc.now();
lcd.setCursor(6,1);
printDigits2(now.day());
lcd.print("/");
printDigits2(now.month());
lcd.print("/");
lcd.print(now.year(),DEC);
}
void matchTIM(){
DateTime now =rtc.now();
int tempTime = prevTime + hoursE;
if(tempTime >=60){
tempTime = tempTime - 60;
}
else
tempTime = prevTime + hoursE;
if(newTime == tempTime){
prevTime=now.minute();
Serial.print("MatchTime");
Serial.println(prevTime);
if(now.dayOfTheWeek()==1){
digitalWrite( buzzer, HIGH );
delay(3000);
digitalWrite( buzzer, LOW );
monA++;
noPeriod++;
lcd.setCursor(0,0);
lcd.print(" ");
}
if(now.dayOfTheWeek()==2){
digitalWrite( buzzer, HIGH );
delay(3000);
digitalWrite( buzzer, LOW );
tueA++;
noPeriod++;
lcd.setCursor(0,0);
lcd.print(" ");
}
if(now.dayOfTheWeek()==3){
digitalWrite( buzzer, HIGH );
delay(3000);
digitalWrite( buzzer, LOW );
wedA++;
noPeriod++;
lcd.setCursor(0,0);
lcd.print(" ");
}
if(now.dayOfTheWeek()==4){
digitalWrite( buzzer, HIGH );
delay(3000);
digitalWrite( buzzer, LOW );
thuA++;
noPeriod++;
lcd.setCursor(0,0);
lcd.print(" ");
}
if(now.dayOfTheWeek()==5){
digitalWrite( buzzer, HIGH );
delay(3000);
digitalWrite( buzzer, LOW );
friA++;
noPeriod++;
lcd.setCursor(0,0);
lcd.print(" ");
}
if(now.dayOfTheWeek()==6){
digitalWrite( buzzer, HIGH );
delay(3000);
digitalWrite( buzzer, LOW );
satA++;
noPeriod++;
lcd.setCursor(0,0);
lcd.print(" ");
}
}
}
//this void function is really useful; it adds a "0" to the beginning of the number,
//so that 5 minutes is displayed as "05", rather than "5 "
void printDigits2(int digits)
{
if(digits < 10)
{
lcd.print("0");
lcd.print(digits);
}
else
{
lcd.print(digits);
}
}
//char* mySubject[]={"MATHS", "ENG","BIO","PHY","CHEM","IT LAB","HIST","GEO"};
void ALLSubjects(int sub)
{
switch(sub)
{
case 0:
lcd.createChar(1,Malpha);
lcd.createChar(2,Aalpha);
lcd.createChar(3,Talpha);
lcd.createChar(4,Halpha);
lcd.setCursor(0,1);
lcd.write(1);
lcd.setCursor(1,1);
lcd.write(2);
lcd.setCursor(2,1);
lcd.write(3);
lcd.setCursor(3,1);
lcd.write(4);
break;
case 1:
lcd.setCursor(0,1);
lcd.write(" ");
delay(50);
lcd.createChar(1,Ealpha);
lcd.createChar(2,Nalpha);
lcd.createChar(3,Galpha);
lcd.setCursor(0,1);
lcd.write(1);
lcd.setCursor(1,1);
lcd.write(2);
lcd.setCursor(2,1);
lcd.write(3);
break;
//char* mySubject[]={"MATHS", "ENG","BIO","PHY","CHEM","IT LAB","HIST","GEO"};
case 2:
lcd.setCursor(0,1);
lcd.write(" ");
delay(50);
lcd.createChar(1,Balpha);
lcd.createChar(2,Ialpha);
lcd.createChar(3,Oalpha);
lcd.setCursor(0,1);
lcd.write(1);
lcd.setCursor(1,1);
lcd.write(2);
lcd.setCursor(2,1);
lcd.write(3);
break;
case 3:
lcd.setCursor(0,1);
lcd.write(" ");
delay(50);
lcd.createChar(1,Palpha);
lcd.createChar(2,Halpha);
lcd.createChar(3,Yalpha);
lcd.setCursor(0,1);
lcd.write(1);
lcd.setCursor(1,1);
lcd.write(2);
lcd.setCursor(2,1);
lcd.write(3);break;
//char* mySubject[]={"MATHS", "ENG","BIO","PHY","CHEM","IT LAB","HIST","GEO"};
case 4:
lcd.setCursor(0,1);
lcd.write(" ");
delay(50);
lcd.createChar(1,Calpha);
lcd.createChar(2,Halpha);
lcd.createChar(3,Ealpha);
lcd.createChar(4,Malpha);
lcd.setCursor(0,1);
lcd.write(1);
lcd.setCursor(1,1);
lcd.write(2);
lcd.setCursor(2,1);
lcd.write(3);
lcd.setCursor(3,1);
lcd.write(4);
break;
case 5:
lcd.createChar(1,Ialpha);
lcd.createChar(2,Talpha);
lcd.setCursor(0,1);
lcd.write(1);
lcd.setCursor(1,1);
lcd.write(2);break;
case 6:
lcd.setCursor(0,1);
lcd.write(" ");
delay(50);
lcd.createChar(1,Halpha);
lcd.createChar(2,Ialpha);
lcd.createChar(3,Salpha);
lcd.createChar(4,Talpha);
lcd.setCursor(0,1);
lcd.write(1);
lcd.setCursor(1,1);
lcd.write(2);
lcd.setCursor(2,1);
lcd.write(3);
lcd.setCursor(3,1);
lcd.write(4);
break;
//char* mySubject[]={"MATHS", "ENG","BIO","PHY","CHEM","IT LAB","HIST","GEO"};
case 7:
lcd.setCursor(0,1);
lcd.write(" ");
delay(50);
lcd.createChar(1,Galpha);
lcd.createChar(2,Ealpha);
lcd.createChar(3,Oalpha);
lcd.setCursor(0,1);
lcd.write(1);
lcd.setCursor(1,1);
lcd.write(2);
lcd.setCursor(2,1);
lcd.write(3);
break;
case 8:
lcd.setCursor(0,1);
lcd.write(" ");
delay(50);
lcd.createChar(1,Ealpha);
lcd.createChar(2,Nalpha);
lcd.createChar(3,Dalpha);
lcd.setCursor(0,1);
lcd.write(1);
lcd.setCursor(1,1);
lcd.write(2);
lcd.setCursor(2,1);
lcd.write(3);
break;
case 9:
lcd.createChar(8,next);
lcd.setCursor(5,1);
lcd.write(8);
delay(1000);
lcd.setCursor(5,1);
lcd.write(" ");
delay(1000);break;
default:break;
}
}
void ALLDays(int dey)
{
switch(dey)
{
case 0://sun
lcd.createChar(5,Salpha);
lcd.createChar(6,Ualpha);
lcd.createChar(7,Nalpha);
lcd.setCursor(7,0);
lcd.write(5);
lcd.setCursor(8,0);
lcd.write(6);
lcd.setCursor(9,0);
lcd.write(7);var=1;break;
case 1://mon
lcd.createChar(5,Malpha);
lcd.createChar(6,Oalpha);
lcd.createChar(7,Nalpha);
lcd.setCursor(7,0);
lcd.write(5);
lcd.setCursor(8,0);
lcd.write(6);
lcd.setCursor(9,0);
lcd.write(7);var=2;break;
case 2://tue
lcd.createChar(5,Talpha);
lcd.createChar(6,Ualpha);
lcd.createChar(7,Ealpha);
lcd.setCursor(7,0);
lcd.write(5);
lcd.setCursor(8,0);
lcd.write(6);
lcd.setCursor(9,0);
lcd.write(7);var=3;break;
case 3://wed
lcd.createChar(5,Walpha);
lcd.createChar(6,Ealpha);
lcd.createChar(7,Dalpha);
lcd.setCursor(7,0);
lcd.write(5);
lcd.setCursor(8,0);
lcd.write(6);
lcd.setCursor(9,0);
lcd.write(7);var=4;break;
case 4://thu
lcd.createChar(5,Talpha);
lcd.createChar(6,Halpha);
lcd.createChar(7,Ualpha);
lcd.setCursor(7,0);
lcd.write(5);
lcd.setCursor(8,0);
lcd.write(6);
lcd.setCursor(9,0);
lcd.write(7);var=5;break;
case 5://fri
lcd.createChar(5,Falpha);
lcd.createChar(6,Ralpha);
lcd.createChar(7,Ialpha);
lcd.setCursor(7,0);
lcd.write(5);
lcd.setCursor(8,0);
lcd.write(6);
lcd.setCursor(9,0);
lcd.write(7);var=6;break;
case 6://sat
lcd.createChar(5,Salpha);
lcd.createChar(6,Aalpha);
lcd.createChar(7,Talpha);
lcd.setCursor(7,0);
lcd.write(5);
lcd.setCursor(8,0);
lcd.write(6);
lcd.setCursor(9,0);
lcd.write(7);var=7;break;
default:break;
}
}
void endsession(){
lcd.setCursor(0,0);
lcd.print(" Session End");
lcd.setCursor(0,1);
lcd.print(" Good Luck :) ");
delay(3000);
}
</span>
