#include <RTClib.h>
RTC_DS1307 rtc;
char namaHari[7][8] = {"ahad", "senin", "selasa", "rabu", "kamis", "jum'at", "sabtu"};

const int jamalarm = 23;
const int menitalarm = 25;
const int detikalarm = 10;

boolean alarmnyala = false;
int alarmmulai;

void setup() {
  Serial.begin(9600);
  if (! rtc.begin()) {
    Serial.println("RTC TIDAK TERBACA");
    while (1);
  }

  if (! rtc.isrunning()) {
    Serial.println("RTC is NOT running!");
    rtc.adjust(DateTime(F(__DATE__), F(__TIME__)));
  }
  pinMode(2, OUTPUT);
  digitalWrite(2, LOW);
}

void loop() {
    DateTime now = rtc.now();
    Serial.print(namaHari[now.dayOfTheWeek()]);  
    Serial.print(',');    
    Serial.print(now.day(), DEC);
    Serial.print('/');
    Serial.print(now.month(), DEC);
    Serial.print('/');
    Serial.print(now.year(), DEC);
    Serial.print(" ");   
    Serial.print(now.hour(), DEC);
    Serial.print(':');
    Serial.print(now.minute(), DEC);
    Serial.print(':');
    Serial.print(now.second(), DEC);
    Serial.println();

    if (!alarmnyala && now.hour() == jamalarm && now.minute() == menitalarm && now.second() == detikalarm) {
      digitalWrite(2, HIGH);       alarmnyala = true;
      alarmmulai = millis(); 
    }
    if (alarmnyala && (millis() - alarmmulai >= 10000)) {
      digitalWrite(2, LOW); 
      alarmnyala = false; 
    }

    delay(1000); 
}