project.arduino

//Elmas Başak Gören
#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);
//first I set these false. It will be changed by some condition.
bool ClockSet = false;
bool ChooseClockPart = false;

//create new variables fot the alarm
int hoursForAlarm;
int minutesForAlarm;

//these pins were created
const byte pin0 = 0; // it is for the clock part change. 12 and 24.
const byte pin1 = 1; //it is for the alarm pm am mode
const byte pin10 = 10; // it is for the alrm on/off

//I decided the clock start with 12.00.00 and we can see the differences between 12 and 24 clock part.
int hr = 12, min = 00, sec = 00;
int newHours = 0; // I set the new hours 0. So it is initialized.
bool TwentyFourHours = true; //Now it is true and when it 12 hours starts it  must be false.
//I will use it the print the actual AM PM text.
String PrintAmPm = "";

//These part is for the teaching the program how to be the clock.
ISR(TIMER1_COMPA_vect)
{
  if(sec < 59)// The basic clock rules. It not going to be 60.
  {
      sec++; //will continue.
    return;
  }
  if(min < 59)
  {
    // The basic clock rules. It not going to be 60.
      sec = 0; ; //new start.
    min++;//will continue.
    return;
  }
  if(hr < 23)
  {
    // The basic clock rules. It not going to be 24 any time.
      sec = 0; //new start.
    min = 0; //new start.
    hr++; //will continue.
    return;
  }
  //set them 0.
  sec = 0;
  min = 0;
  hr = 0;
}
//Timer Settings
//Actually Timer has a clock inherently but it not the same as our clock time.
void TimerSettings(){

  cli(); //cli clears the global interrupt flag to  prevent any form of interrupt occurring.

  TCCR1A = 0;// set for initiliazing
  TCCR1B = 0;// set for initiliazing
  TCNT1  = 0;//initialize counter value to 0
  // set compare match register for 1hz increments
  OCR1A = 15624;// OCR1A have to be lower than 65536.


  TCCR1B |= (1 << WGM12);
  // Setting the needed bits for 1024 prescaler
  TCCR1B |= (1 << CS12) | (1 << CS10);
  TIMSK1 |= (1 << OCIE1A); //need to compare

  sei(); //sei sets the bit and switches interrupts on.
}

//This function purpose set the clock am pm time
int turnTwentyFourHour()
{
  //set the new hours 's'
  int s = hr;
  //print AM part
  PrintAmPm = "AM";
  //clockset is seted FALSE
  ClockSet = false;
  if( s > 11)//so hours bigger then 11 is PM now.
  {
      s = hr - 12;
    PrintAmPm = "PM";
    //process'll continue so we need to set it true.
    ClockSet=true;
  }
  //process is done after that, so set it false.

  if(s == 0){
    s = 12;
    ClockSet=false;
  }
  //end up function.
  return s;
}

//Actual show 24 clock time function.
void Show_Time24()
{
  //new variable for hours.
  int newHours = hr;
  //if the twentyFourHours True it means 24 mode on.
  if(TwentyFourHours = true)
  {
    //so new hours will be 24 mode.
      newHours = turnTwentyFourHour();
  }
  //some edit for printing. if it is lower tan 10 so 0 will add it the led.
  if(newHours < 10)
  {
    lcd.setCursor(0,0);lcd.print("0");
    //and print hours.
    lcd.setCursor(1,0);lcd.print(newHours);
  }
  else {

    lcd.setCursor(0,0);lcd.print(newHours);
  }

  if(min < 10)//some operation for minutes.
  {
    lcd.setCursor(3,0);
    //print 0 to the led.
    lcd.print("0"); //print 0.
    lcd.setCursor(4,0);
    //and print minutes.
    lcd.print(min);
  }
  else
  {
    lcd.setCursor(3,0);
    lcd.print(min);
  }

if(sec < 10)//if sec lower than 10, it will print 0 on the lcd..
{
    lcd.setCursor(6,0);
    lcd.print("0"); //print 0.
    lcd.setCursor(7,0);
    lcd.print(sec);
  }
  else
  {
    lcd.setCursor(6,0);
    lcd.print(sec);
  }
    lcd.setCursor(2,0);
    lcd.print(":");
    lcd.setCursor(5,0);
    lcd.print(":");
    lcd.setCursor(8,0);
    lcd.print("");
}

void Show_Time12()//Function for show 12 hours clock.
{
   int newHours = hr; //new variable for hours.
  if(TwentyFourHours != true)//when 24 not true it will be happen
  {
      newHours = turnTwentyFourHour();
    //we need some hours mode operation and so on.
   	  newHours = newHours % 12;
  }
  if(newHours < 10 && newHours >= 1 )
  {
    //same operations for hours
    lcd.setCursor(0,0);
    lcd.print("0");
    lcd.setCursor(1,0);
    lcd.print(newHours);
  }
  else if(newHours < 1){
     lcd.setCursor(0, 0);
    //It will never be 00 so print 12.
     lcd.print("12");
  }
  else
  {
    //print on the lcd.
    lcd.setCursor(0,0);
    lcd.print(newHours);
  }

  if(min < 10)
  {
    //same operations for minutes. It will 0 when it lower than 10.

    lcd.setCursor(3,0);
    lcd.print("0");
    lcd.setCursor(4,0);
    lcd.print(min);
  }
  else {
    lcd.setCursor(3,0);
    lcd.print(min);
  }
  if(sec < 10){
    lcd.setCursor(6,0);
    lcd.print("0");
    lcd.setCursor(7,0);
    lcd.print(sec);
  } else {
    lcd.setCursor(6,0);
    lcd.print(sec);
  }
  //some lcd print operations
    lcd.setCursor(2,0);
    lcd.print(":");
    lcd.setCursor(5,0);
    lcd.print(":");
    lcd.setCursor(8,0);
    lcd.print("");
    lcd.setCursor(12,1);
  //So 12 clock time part need to print AM PM time.
    lcd.print(PrintAmPm);
}
//This function actually get the alarm.
void takeAlarm() {
 if (minutesForAlarm == min)
 { //operation checks minutes.
  if (hoursForAlarm == newHours)
  { //operation checks hours.
   if (digitalRead(pin0) == HIGH)
   {
     //when It meets all needs clear lcd and print.
    lcd.clear();
    lcd.setCursor(5, 0);
     //alarm activated so print alarm.
    lcd.print("ALARM!");
     //we need piezo for the alarm. so I activated in there.
    tone(7,200,100);
   //end up the operation.
     delay(100);

   }
    else {
      //Same operation different clock part.
    if (ChooseClockPart == ClockSet)
    {//clear lcd and print data.
     lcd.clear();
     lcd.setCursor(5, 0);
      //print alarm text.
     lcd.print("ALARM!");
      //we need piezo for the alarm. so I activated in there.
       tone(7,200,100);
      delay(100);
    }
     else {

    }
   }
  }
   else {}

 }
  else {


 }
}
//It gets data from pin and activates alarm.
void ShowAlarm() {
 if (digitalRead(pin0) == HIGH)
 //means it is pushed.
 {
  if (digitalRead(A3) == HIGH)//means it is time to start
  {
   hoursForAlarm++;
    //for 24 clock part
   hoursForAlarm = hoursForAlarm % 24;
  }
   else {

  }
 }
  else {
  if (digitalRead(A3) == HIGH) //means it is time to start
  {
   hoursForAlarm++;
    //for 12 clock part
   hoursForAlarm = hoursForAlarm % 12;
  }
    else {

  }

 }


 if (hoursForAlarm < 10) {
  lcd.setCursor(0, 1);
  lcd.print("0");
  lcd.print(hoursForAlarm);
 }
  else {
  lcd.setCursor(0, 1);
  lcd.print(hoursForAlarm);
 }

 if (digitalRead(A4) == HIGH) {
  minutesForAlarm++;
  minutesForAlarm = minutesForAlarm % 60;
 }
  else {

 }
//operations for minutes
 if (minutesForAlarm < 10) {
  lcd.setCursor(2, 1);
  lcd.print(":");
  lcd.print("0");
  lcd.print(minutesForAlarm);
 }
  else {
  lcd.setCursor(2, 1);
  lcd.print(":");
    //print minutes for alarm
  lcd.print(minutesForAlarm);
 }


 if (digitalRead(pin0) == HIGH)
 //means it is activated.
 {

 }
  else
  {
  if (digitalRead(pin1) == HIGH)//means it is activated
  {
   lcd.setCursor(5, 1);
   lcd.print(":");
   lcd.print("PM");
    //knows it is Pm side and set it false.
   ChooseClockPart = false;
  }
    else//same cursor as PM
    {
   lcd.setCursor(5, 1);
   lcd.print(":");
   lcd.print("AM");
    //knows it is Am sie and set it true.
   ChooseClockPart = true;
  }
 }
  if (digitalRead(A2) == HIGH)//this will snooze alarm by 5 minutes (as requareted.)
  {
    //postponed by 5 minutes.
  minutesForAlarm = minutesForAlarm + 5;
   if (minutesForAlarm >= 60) //but it never pass 60 so, we restrict.
   {
    hoursForAlarm++;
      minutesForAlarm = minutesForAlarm % 60;
   }
    else {

   }
 } else {

 }


//get alarm from it.
 takeAlarm();

}



#define pinTemp A0
//I will recieve it from A0 pin so I have to define it. It will use for the computing temprature.
void setup()
{
  // in the set up all input and output are described.
   Serial.begin(9600);
   TimerSettings(); //essential setting for timer must be define at the set up side.
  //All pinmodes are below.
   pinMode(A0, INPUT);
   pinMode(A2, INPUT);
   pinMode(A3, INPUT);
   pinMode(A4, INPUT);
   pinMode(7, OUTPUT);
   pinMode( pinTemp, INPUT ); //special.



  lcd.begin(16, 2);
  lcd.setCursor(0,0);
}
void ForCelcius()//This function is for computing celcius
{
  //the formul for computing celcius. pintemp is a value from the circuit.
   float temp = ((analogRead(pinTemp) * (5.0/1024))-0.5 )/0.01;

  lcd.setCursor(10, 0);
  lcd.print("               ");
  //right side.
  lcd.setCursor(10, 0);
  lcd.print( temp );
  lcd.print("C");//celcius symbol.

}
void ForFahrenheit()//This function is for computing fahrenheit
{
  //It actually use celcius math and then * 9/5 +32
   float temp = (((analogRead(pinTemp) * (5.0/1024))-0.5 )/0.01) * 9/5 +32;

//print it on the lcd.
  lcd.setCursor(10, 0);
  lcd.print("               ");
  //right side.
  lcd.setCursor(10, 0);
  lcd.print( temp );
  lcd.print("F"); //fahrenheit symbol.

}

void loop() {

  //need to describe
 byte number = digitalRead(pin0);//it will read the pin0 for 12 and 24 hours clock change.
//and print it.
  Serial.println(number);
//it will read pin10 for on/off the alarm.
 byte SetA = digitalRead(pin10);
  //and print it.
 Serial.println(SetA);


 if (number == HIGH)
 {
   //clear the lcd

  lcd.clear();
   //print 24 hours clock.
  Show_Time24();
   // it check alarm is opened.
  if (SetA == HIGH)
  {
   //condition is okay, so show alarm.
   ShowAlarm();
  }
   //else dont do anything.
   else {}
 }
  else
  {
  TwentyFourHours = false; //set it false now.
  lcd.clear();
    //clear the lcd and print 12 hours clock part.
  Show_Time12();
  if (SetA == HIGH)
  {
    //condition is okay, so show alarm.
   ShowAlarm();

  }
    //else dont do anything.
    else {}

 }
  //button for temprature.
  if (digitalRead(A5) == HIGH) { //button for the print celcius value.
    ForCelcius(); //the function is above.
  }
  else{//otherwise it will print fahrenheit value.
    ForFahrenheit(); //the function is above.
  }



   delay ( 1000 );

  }