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Digital Clock + Alarm + Thermometer dengan DS3231 dan LCD 1602 i2C

Author : Ila MulyandiNo comments
Membuat Jam Digital dengan Arduino dan RTC DS3231.
Tampilan menggunakan menggunakan LCD 1602 (16x2) i2C.



Bahan dan Module yang kita butuhkan :
1unit Arduino Uno/ Nano / Promini / Minsis Atmega328 / Atmega168
1unit Module RTC DS3231 (i2C Connection)
1unit Module LCD 1602 i2C connection
1unit Buzzer / mini speaker
4unit Tombol Push button (momentary/non-Lock)
kabel jumper secekupnya

Wiring :
Hubungkan RTC DS3231 dengan Arduino dengan sambungan sbb :
VCC RTC --> ke pin 5V Arduino
GND RTC --> ke pin GND Arduino
SDA RTC --> ke pin SDA Arduino (A4)
SCL RTC --> ke pin SCL Arduino (A5)

Hubungkan LCD 1602 i2C dengan Arduino dengan sambungan sbb :
VCC LCD --> ke pin 5V Arduino
GND LCD --> ke pin GND Arduino
SDA LCD --> ke pin SDA Arduino (A4)
SCL LCD --> ke pin SCL Arduino (A5)

Hubungkan Speaker/Buzzer dengan Arduino dengan sambungan sbb :
Buzzer (+) --> ke pin D13 Arduino (anda bisa menggunakan pin lain)
Buzzer (-) --> ke pin GND Arduino

Hubungkan 4 buah Push button dengan Arduino dengan sambungan sbb :
Button 1 (digit -) --> ke pin D2 Arduino
Button 2 (digit +) --> ke pin D3 Arduino
Button 3 (set Time) --> ke pin D4 Arduino
Button 4 (set Alarm) --> ke pin D5 Arduino
Salah satu pin dari semua tombol harus digabung dan dihibungkan dengan GND Arduino

Perhatikan Skema Wiring dibawah ini :
Sourche Code :
Berikut adalah Sourche Code dari Jam Digital + Alarm dan Thermomoter by Dani.
Coding berikut dibuat oleh dani (Rajacell) agar dapat digunakan secara bebas oleh pembaca blog ini dan saya himbau untuk tidak menghilangkan Catatan pada comment di coding sebagai bentuk Copyright dari si Pembuat coding.

Silahkan di Upload ke dalam Board Arduino / minsis yang sudah terhubung dengan LCD dan RTC.
Apabila ada kekurangan atau bugs harap menghubungi saya melalui comment post ini atau via FB

///////////////////////////////////////////////
// Coding ini dibuat Oleh Dani Rajacell ///////
// Untuk www.belajarduino.com /////////////////
// Support by www.tokopedia.com/rajacell //////
// Copyright 24/8/2016 Rev.0.0 ////////////////
///////////////////////////////////////////////

#include <DS3231.h> //Memanggil RTC3231 Library
#include <Wire.h>  // i2C Conection Library
#include <LiquidCrystal_I2C.h>  //Memanggil i2C LCD Library
#include <Button.h> //Memanggil library Push Button

//Setup Tombol Setting
#define DN_PIN 2 //Decrease Button
#define UP_PIN 3 //Increase Button
#define SET_PIN 4  //Setup Button
#define ALR_PIN 5  //Setup Button
#define PULLUP true //Mengaktifkan internal Pull Up
#define INVERT true 
#define DEBOUNCE_MS 20     
#define REPEAT_FIRST 500 
#define REPEAT_INCR 100 

//Declare push buttons
Button btnUP(UP_PIN, PULLUP, INVERT, DEBOUNCE_MS);    
Button btnDN(DN_PIN, PULLUP, INVERT, DEBOUNCE_MS);
Button btnSET(SET_PIN, PULLUP, INVERT, DEBOUNCE_MS);
Button btnALR(ALR_PIN, PULLUP, INVERT, DEBOUNCE_MS);
enum {WAIT, INCR, DECR};             
uint8_t STATE;                       
int count;                           
int lastCount = -1;                   
unsigned long rpt = REPEAT_FIRST;  
///////////////////////////////////////////////
// Coding ini dibuat Oleh Dani Rajacell ///////
// Untuk www.belajarduino.com /////////////////
// Support by www.tokopedia.com/rajacell //////
// Copyright 24/8/2016 Rev.0.0 ////////////////
///////////////////////////////////////////////
LiquidCrystal_I2C lcd(0x3F, 16, 2);
//custom degrees char
uint8_t dgrsChar[8] = {0x4,0xa,0x4,0x0,0x0,0x0,0x0,0x0}; 

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

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

uint32_t targetTime = 0;
uint8_t conv2d(const char* p) {
uint8_t v = 0;
  if ('0' <= *p && *p <= '9')
   v = *p - '0';
  return 10 * v + *++p - '0';}

//Mengambil waktu jam dari waktu Compile/Upload di system Windows
uint8_t hh = 0, mm = 0, ss = 0, dd = 0, bb = 0;
int yy = 0;
String Day = "  ";
uint8_t alarmHH = 9, alarmMM = 30;
int alarmLONG = 5;
uint8_t setMode = 0, setAlarm = 0, alarmMode=0;


void setup()
{
  // Setup Serial connection
  //Serial.begin(115200);
  pinMode (13, OUTPUT); 
  //digitalWrite (13, LOW); // jika menggunakan relay sebagai beban alarm
  lcd.begin(); // memulai koneksi i2c dengan LCD
  rtc.begin(); // memulai koneksi i2c dengan RTC
  lcd.createChar(0, dgrsChar); //Membuat custom char derajat
  lcd.setCursor (0,0);
  lcd.print(F("  Dani's Clock  "));
  lcd.setCursor (0,1);
  lcd.print(F("With RTC DS3231"));
  delay (2000);
  lcd.clear();

//rtc.setTime (10, 15, 00); 
//rtc.setDate(23, 8, 2016);  
}

///////////////////////////////////////////////
// Coding ini dibuat Oleh Dani Rajacell ///////
// Untuk www.belajarduino.com /////////////////
// Support by www.tokopedia.com/rajacell //////
// Copyright 24/8/2016 Rev.0.0 ////////////////
///////////////////////////////////////////////

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 <2){
  lcd.setCursor(1,0);
  if(setMode==0)lcd.print(Day); else {lcd.print(F("SET"));}
  lcd.print(F(" "));
  lcd.print(dd); lcd.print(F("-")); 
  lcd.print(bb); lcd.print(F("-")); 
  lcd.print(yy); lcd.print(F("  ")); 

  lcd.setCursor(0,1); 
  if (hh<10){ lcd.print(F("0"));}
  lcd.print(hh); lcd.print(F(":"));
  if (mm<10){ lcd.print(F("0"));} 
  lcd.print(mm); lcd.print(F(":"));
  if (ss<10){ lcd.print(F("0"));} 
  lcd.print(ss); lcd.print(F(" ")); 
  lcd.print(rtc.getTemp());
  lcd.print((char)0); 
  lcd.print(F("C"));
  lcd.print(F(" ")); 
  }
  
  setupClock();
  Alarm (alarmHH, alarmMM, alarmLONG);

if (setAlarm <2 && setMode != 0) {delay (100);}
if (setAlarm <2 && setMode == 1){lcd.setCursor(5,0); lcd.print(F("  ")); delay(100);}
if (setAlarm <2 && setMode == 2 && bb>9){lcd.setCursor(8,0); lcd.print(F("  ")); delay(100);}
if (setAlarm <2 && setMode == 2 && bb<=9){lcd.setCursor(8,0); lcd.print(F(" ")); delay(100);}
if (setAlarm <2 && setMode == 3 && bb>9){lcd.setCursor(11,0); lcd.print(F("    ")); delay(100);}
if (setAlarm <2 && setMode == 3 && bb<=9){lcd.setCursor(10,0); lcd.print(F("    ")); delay(100);}
if (setAlarm <2 && setMode == 4){lcd.setCursor(0,1); lcd.print(F("  ")); delay(100);}
if (setAlarm <2 && setMode == 5){lcd.setCursor(3,1); lcd.print(F("  ")); delay(100);}
if (setAlarm <2 && setMode == 6){lcd.setCursor(6,1); lcd.print(F("  ")); delay(100);}

if (setMode == 0 && setAlarm != 0  && setAlarm != 1) {delay (100);}
//if (setMode == 0 && setAlarm == 1){lcd.clear(); lcd.setCursor(3,0); lcd.print(F("Alarm OFF")); delay(100);}
if (setMode == 0 && setAlarm == 2){lcd.setCursor(0,1); lcd.print(F("  ")); delay(100);}
if (setMode == 0 && setAlarm == 3){lcd.setCursor(3,1); lcd.print(F("  ")); delay(100);}
if (setMode == 0 && setAlarm == 4 && alarmLONG >9){lcd.setCursor(12,1); lcd.print(F("  ")); delay(100);}
if (setMode == 0 && setAlarm == 4 && alarmLONG <10){lcd.setCursor(12,1); lcd.print(F(" ")); delay(100);}

Serial.print (setMode);
Serial.print ("  ");
Serial.println (setAlarm);
}
///////////////////////////////////////////////
// Coding ini dibuat Oleh Dani Rajacell ///////
// Untuk www.belajarduino.com /////////////////
// Support by www.tokopedia.com/rajacell //////
// Copyright 24/8/2016 Rev.0.0 ////////////////
///////////////////////////////////////////////
void setupClock (void) {
   btnUP.read();                             //read the buttons
   btnDN.read();
   btnSET.read();
   btnALR.read();
   
    if (setMode == 7){
    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("Alarm at : "));
    lcd.print (alarmHH); lcd.print (F(":"));
    lcd.print (alarmMM); 
    delay (1000); lcd.clear();
    setAlarm=0;
    alarmMode=1;}
    
    if (setAlarm >0){ alarmMode=0;}
    
    switch (STATE) {
        
        case WAIT:                            
            if (btnSET.wasPressed())
               { setMode = setMode+1;}
            if (btnALR.wasPressed())
               { setAlarm = setAlarm+1;} 
            if (btnUP.wasPressed())
                STATE = INCR;
            else if (btnDN.wasPressed())
                STATE = DECR;
            else if (btnUP.wasReleased())    
                rpt = REPEAT_FIRST;
            else if (btnDN.wasReleased())
                rpt = REPEAT_FIRST;
            else if (btnUP.pressedFor(rpt)) {  
                rpt += REPEAT_INCR;            
                STATE = INCR;
            }
            else if (btnDN.pressedFor(rpt)) {
                rpt += REPEAT_INCR;
                STATE = DECR;
            }
            break;

        case INCR:                               
            if (setAlarm<2 && setMode==1 && dd<31)dd=dd+1; 
            if (setAlarm<2 && setMode==2 && bb<12)bb=bb+1;
            if (setAlarm<2 && setMode==3 && yy<2050)yy=yy+1;
            if (setAlarm<2 && setMode==4 && hh<23)hh=hh+1;
            if (setAlarm<2 && setMode==5 && mm<59)mm=mm+1;
            if (setAlarm<2 && setMode==6 && ss<59)ss=ss+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 && alarmLONG<59)alarmLONG=alarmLONG+1;
            STATE = WAIT;
            break;

        case DECR:                               
            if (setAlarm<2 && setMode==1 && dd>0)dd=dd-1;
            if (setAlarm<2 && setMode==2 && bb>0)bb=bb-1;
            if (setAlarm<2 && setMode==3 && yy>2000)yy=yy-1;
            if (setAlarm<2 && setMode==4 && hh>0)hh=hh-1;
            if (setAlarm<2 && setMode==5 && mm>0)mm=mm-1;
            if (setAlarm<2 && setMode==6 && ss>0)ss=ss-1;  
            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 && alarmLONG>0)alarmLONG=alarmLONG-1;
            STATE = WAIT;
            break;
    }
}
///////////////////////////////////////////////
// Coding ini dibuat Oleh Dani Rajacell ///////
// Untuk www.belajarduino.com /////////////////
// Support by www.tokopedia.com/rajacell //////
// Copyright 24/8/2016 Rev.0.0 ////////////////
///////////////////////////////////////////////
void Alarm (uint8_t alarmHH, uint8_t alarmMM,int alarmLONG) {

 if (alarmMode==1 && hh == alarmHH && (mm - alarmMM >= 0 ) && (mm - alarmMM <= alarmLONG )) {
  tone (13, 1200);
  
  if(ss%2==0){lcd.noBacklight();}
  else {lcd.backlight ();}
  
  btnALR.read();
  if (btnALR.wasPressed())
 { alarmMode = 0; lcd.backlight();}}
 
 
 else {noTone (13);  lcd.backlight();}

 if (setMode == 0 && setAlarm !=0 && setAlarm !=1){
  lcd.setCursor (1,0);
  lcd.print(F("  Set Alarm    "));
  lcd.setCursor (0,1);
  if(alarmHH<10){lcd.print(F("0"));}
  lcd.print (alarmHH); lcd.print(F(":"));
  if(alarmMM<10){lcd.print(F("0"));}
  lcd.print (alarmMM); lcd.print(F("  Long:"));
  lcd.print (alarmLONG); lcd.print(F("mnt "));
 }
}

Posted On : Wednesday, February 1, 2017Time : 6:11 PM
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