////Proyek #21: Jam Digital Sederhana
#include "SevSeg.h"
SevSeg sevseg; //Inisialisasi objek seven segment 
int colonpin = A3 ; //pin colon 7-segment
int ledState = LOW; //memyimpan satus led colon pin
unsigned long previousMillis = 0;  // menyimpan waktu akhir led updated
const long interval = 1000;   // interval kedip colon 1 detik    
int button_jam = 14 ;/* PIn A0 sebagai pin digital button up */
int button_menit= 15 ;/* PIn A1 sebagai pin digital button down */
int count_detik = 0;//nilai awal tampilan detik adalah nol
int count_menit = 0;//nilai awal tampilan menit adalah nol 
int count_jam = 12;// nilai awal tampilan jam adalah 12
long lastTime, millisTime, deltaTime = 0;

void  setup() {
//gunakan pin button sebagai mode input pullup
pinMode (button_jam,INPUT_PULLUP);
pinMode (button_menit,INPUT_PULLUP);
pinMode(colonpin, OUTPUT);

 // konfigurasi 7-segment 
  byte numDigits = 4;//jumlah digir seven segment
  byte digitPins[] = {10,11,12,13};//DIG1,DIG2, DIG3,DIG4
  byte segmentPins[] = {2, 3, 4, 5, 6, 7, 8, 9}; //A,B, C, D, E, F, G, DP
  bool resistorsOnSegments = false; // pilih 'false bila resistor ada di pin digit

  byte hardwareConfig = COMMON_ANODE; // gangti tipenya common anoda atau katoda dr 7 segment
  bool updateWithDelays = false; // Default 'false' direkomendasikan
  bool leadingZeros = false; // Pilih 'true' Jika ingin menmapilkan nol disamping
  bool disableDecPoint = false; // pilih 'true' jika pin Dp tidak ada atau tidak dihubungkan

  sevseg.begin(hardwareConfig, numDigits, digitPins, segmentPins, resistorsOnSegments,
  updateWithDelays, leadingZeros, disableDecPoint);
sevseg.setBrightness(95);//atur tingkat kecerahan 7segmen (0-100)
}
void loop() {
set_time();//panggil fungsi set_time
blink_colon(); //panggil blink colon
jam_digital();//panggil fungsi jam_digital
 }
void jam_digital(){
 if(count_detik > 59){
  count_menit++;
  count_detik =0;
}	
 if(count_menit > 59){
  count_jam++;
  count_menit=0;
 }
 if (count_jam >23){
   count_jam=0;
 }
// timer untuk mencounter detik
  millisTime = millis();
      deltaTime = millisTime-lastTime;
      if (deltaTime>1000)
       {
         count_detik++;
         lastTime = millisTime;
       }
  tampilkan_waktu();
  }
  
void tampilkan_waktu(){
sevseg.setNumber(count_jam * 100 + count_menit);/*tampilakn nilai count*/
sevseg.refreshDisplay(); /* refresh tampilan 7-segment */

  }
  
void set_time(){ 
//cek penekanan saklar
 int val_tombol_menit = digitalRead(button_menit);          
 int val_tombol_jam =digitalRead(button_jam);
       
   if (val_tombol_menit == LOW){
      count_menit++ ;//menit mencacah keatas bertambah 1 
      delay(200);//delay untuk debounce saklar
      }    
   if (count_menit > 59){
       count_menit=0;
      }
  
   if (val_tombol_jam == LOW){
      count_jam++;//jam mencacah keatas bertambah 1
      delay(200); // delay untuk debounce saklar
      }   
   if (count_jam > 23){
      count_jam=0;
      }
      tampilkan_waktu();//panggil fungsi tampilan_waktu
  }
void blink_colon(){
   unsigned long currentMillis = millis();

  if (currentMillis - previousMillis >= interval) {
    // save the last time you blinked the LED
    previousMillis = currentMillis;

    // jika  LED off nyalakan dan vice-versa:
    if (ledState == LOW) {
      ledState = HIGH;
    } else {
      ledState = LOW;
    }
    // set the LED variabel ledState :
    digitalWrite(colonpin, ledState);
  }
}