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  1. /*
  2.  * Simple Digital Timer Without RTC
  3.  * Created 16 March 2018
  4.  * By Papermindvention.blogspot.com
  5.  */
  6.  
  7. #include <LiquidCrystal.h>
  8. /*pin yang digunakan oleh lcd
  9.  * 6 (RS)
  10.  * 7 (E/Enable)
  11.  * 9  (DB4)
  12.  * 10 (DB5)
  13.  * 11 (DB6)
  14.  * 12 (DB7)
  15.  */
  16. LiquidCrystal lcd(6, 7, 9, 10, 11, 12);
  17. int jam = 0; //Variable untuk data Jam
  18. int menit = 0;
  19. int detik = 0;
  20.  
  21. void setup(){
  22.   lcd.begin(16, 2); //Mengaktifkan LCD
  23. }
  24.  
  25. void loop(){
  26.   for (detik = 0; detik <= 60; detik +=1){
  27.     lcd.clear(); //Membersihkan karakter pada LCD
  28.     lcd.print(jam); lcd.print(\':\'); //mencetak karakter di LCD
  29.     lcd.print(menit); lcd.print(\':\');
  30.     lcd.print(detik);
  31.     delay(1000);
  32.   if (detik == 60){ //Me-reset detik
  33.     detik = 0;
  34.     menit +=1; }
  35.    if (menit == 60){
  36.      menit = 0;
  37.      jam +=1;}
  38.    if (jam == 24){
  39.      jam = 0;}}
  40. }
');