simplinnovation

Video JAMduino

To build this project, you need the following items:

• 1 Arduino Uno board
• 1 LCD Keypad Shield
• Arduino IDE (download here)
• LCD Keypad library (I've attached its .rar on this repo)

Just plug the LCD Keypad Shield on top of Arduino Uno board.

JAMduino schematics

• First, extract LCD Keypad library (LCDKeypad.rar) then copy it to C:\...\Documents\Arduino\libraries.

• Open Arduino IDE then copy sketch below. Make sure you have chosen the right option for Board and Port under Tools menu, then upload to your Arduino board.

  #include <LiquidCrystal.h>
  #include "LCDKeypad.h"
  #define DAYS 0
  #define HOURS 1
  #define MINUTES 2
  #define SECONDS 3
  LCDKeypad lcd;
  unsigned int days = 0;
  unsigned int hours = 0;
  unsigned int minutes = 0;
  unsigned int seconds = 0;
  unsigned int setting = 0;
  void setup() { 
   lcd.begin(16,2);
   lcd.setCursor(4, 0);
   lcd.print("JamDUINO");
   lcd.setCursor(0, 1); 
   lcd.print("tanpa modul RTC");
   delay(3500);
   lcd.clear();
   
   lcd.setCursor(0,0);
   lcd.print("Lintang Wisesa");
   lcd.setCursor(1,1);
   lcd.print("simpLINnovation");
   delay(3500);
   lcd.clear();
   
   lcd.setCursor(0,0);
   lcd.print(" Setting: Hari "); // "Hari" means "Day"
  }
  void loop() {
   incTime();
   printTime();
   buttonListen();
  }
  void buttonListen() {
   for (int i = 0; i < 5; i++) {
   int button = lcd.button();
   switch (button) {
   case KEYPAD_RIGHT:
   setting++;
   break;
   case KEYPAD_LEFT:
   setting--;
   break;
   case KEYPAD_UP:
   switch (setting) {
   case DAYS:
   days++;
   if (days == 7) days = 0;
   if (days == 0)
   lcd.setCursor(0,1);
   lcd.print("SENIN "); // "Senin" means "Monday"
   if (days == 1)
   lcd.setCursor(0,1);
   lcd.print("SELASA"); // "Selasa" means "Tuesday"
   if (days == 2)
   lcd.setCursor(0,1);
   lcd.print("RABU "); // "Rabu" means "Wednesday"
   if (days == 3)
   lcd.setCursor(0,1);
   lcd.print("KAMIS "); // "Kamis" means "Thursday"
   if (days == 4)
   lcd.setCursor(0,1);
   lcd.print("JUMAT "); // "Jumat" means "Friday"
   if (days == 5)
   lcd.setCursor(0,1);
   lcd.print("SABTU "); // "Sabtu" means "Saturday"
   if (days == 6)
   lcd.setCursor(0,1);
   lcd.print("AHAD "); // "Ahad" means "Sunday"
   break;
   case HOURS:
   hours++;
   break;
   case MINUTES:
   minutes++;
   break;
   case SECONDS:
   seconds++;
   } 
   break;
   case KEYPAD_DOWN:
   switch (setting) {
   case DAYS:
   days--;
   if (days == -1) days = 6;
   if (days == 0)
   lcd.setCursor(0,1);
   lcd.print("SENIN ");
   if (days == 1)
   lcd.setCursor(0,1);
   lcd.print("SELASA");
   if (days == 2)
   lcd.setCursor(0,1);
   lcd.print("RABU ");
   if (days == 3)
   lcd.setCursor(0,1);
   lcd.print("KAMIS ");
   if (days == 4)
   lcd.setCursor(0,1);
   lcd.print("JUMAT ");
   if (days == 5)
   lcd.setCursor(0,1);
   lcd.print("SABTU ");
   if (days == 6)
   lcd.setCursor(0,1);
   lcd.print("AHAD ");
   break;
   case HOURS:
   hours--;
   if (hours == -1) hours = 23;
   break;
   case MINUTES:
   minutes--;
   if (minutes == -1) minutes = 59;
   break;
   case SECONDS:
   seconds--;
   if (seconds == -1) seconds = 59;
   }
   }
   setting %= 4;
   printSetting();
   
   days %= 7;
   hours %= 24;
   minutes %= 60;
   seconds %= 60;
   printTime();
   while(millis() % 200 != 0);
   }
  }
  void printSetting() {
   lcd.setCursor(0,0);
   switch (setting) {
   case DAYS:
   lcd.print("JamDUINO Hari~"); // "Hari" means "Day"
   break; 
   case HOURS:
   lcd.print("JamDUINO Jam~"); // "Jam" means "Hour"
   break;
   case MINUTES:
   lcd.print("JamDUINO Menit~"); // "Menit" means "Minute"
   break;
   case SECONDS:
   lcd.print("JamDUINO Detik~"); // "Detik" means "Second"
   }
  }
  void incTime() {
   
   seconds++;
   if (seconds == 60) {
   
   seconds = 0;
   minutes++;
   if (minutes == 60) {
   
   minutes = 0;
   hours++;
   if (hours == 24) {
   hours = 0;
   days++;
   if (days == 7) days = 0;
   if (days == 0)
   lcd.setCursor(0,1);
   lcd.print("SENIN ");
   if (days == 1)
   lcd.setCursor(0,1);
   lcd.print("SELASA");
   if (days == 2)
   lcd.setCursor(0,1);
   lcd.print("RABU ");
   if (days == 3)
   lcd.setCursor(0,1);
   lcd.print("KAMIS ");
   if (days == 4)
   lcd.setCursor(0,1);
   lcd.print("JUMAT ");
   if (days == 5)
   lcd.setCursor(0,1);
   lcd.print("SABTU ");
   if (days == 6)
   lcd.setCursor(0,1);
   lcd.print("AHAD ");
   }
   }
   }
  }
  void printTime() {
   lcd.setCursor(6,1);
   char time[17];
   sprintf(time, " %02i:%02i:%02i", hours, minutes, seconds);
   lcd.print(time);
  }
  

• After uploading done, you have to set the time manually first.
• On LCD Keypad Shield, use:
  • Use ⬅️ left / right ➡️ button to choose time option: HARI (days), JAM (hours), MENIT (min) & DETIK (sec).
  • Use ⬆️ up / down ⬇️ button to set its time, then your clock is ready to go! Have fun!

Facebook | Twitter | Google+ | Youtube | :octocat: GitHub | Hackster