#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#include <Fonts/FreeSerif9pt7b.h>
#include "RTClib.h"

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

char dataHari[7][12] = {"Minggu", "Senin", "Selasa", "Rabu", "Kamis", "Jumat", "Sabtu"};
String hari;
int tanggal, bulan, tahun, jam, menit, detik;

RTC_DS1307 rtc;
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

void waktu(){
  if (! rtc.begin()) {
    Serial.println("RTC Tidak Ditemukan");
    Serial.flush();
    abort();
  }
  //Atur Waktu
  rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));

  DateTime now = rtc.now();
  hari    = dataHari[now.dayOfTheWeek()];
  tanggal = now.day(), DEC;
  bulan   = now.month(), DEC;
  tahun   = now.year(), DEC;
  jam     = 7+now.hour(), DEC;
  menit   = now.minute(), DEC;
  detik   = now.second(), DEC;
}

void setup() {
  Serial.begin(115200);
  waktu();

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }   
}

void loop() {
  display.clearDisplay();
  display.setFont(&FreeSerif9pt7b);
  display.setTextSize(1);
  display.setTextColor(WHITE);
  display.setCursor(10, 20);
  // Display static text
  display.print(jam);
  display.print(":");
  display.print(menit);
  display.print(":");
  display.print(detik);
  display.display();
  
}