RTC DS3231 สามาตั้งเวลา วันละ 2 รอบได้ไหม จากตัวอย่างโค๊ดของเว็บ

// Date, Time and Alarm functions using a DS3231 RTC connected via I2C and Wire lib

#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

#include "Wire.h"

#include "SPI.h"  // not used here, but needed to prevent a RTClib compile error

#include "RTClib.h"

RTC_DS3231 RTC;

int light = 13;

int pum = 8;

void setup () {

  lcd.begin();

  lcd.setCursor(5, 0);

  lcd.print("SMART FARM");

   pinMode(light, OUTPUT);     

   pinMode(pum, OUTPUT);

  Serial.begin(9600);

  Wire.begin();

  RTC.begin();

  //RTC.adjust(DateTime(__DATE__, __TIME__));

  if (! RTC.isrunning()) {

    Serial.println("RTC is NOT running!");

    // following line sets the RTC to the date & time this sketch was compiled

    RTC.adjust(DateTime(__DATE__, __TIME__));

  }

  DateTime now = RTC.now();

  /* ตั้งเวลา ในตัวอย่างนี้ เซตค่าเป็นเวลา 23:09 ถ้าถึงเวลานี้จะให้ทำงานที่ฟังก์ชัน 

    RTC.setAlarm1Simple(23, 9);

   if (RTC.checkIfAlarm(1)) {

   Serial.println("Alarm Triggered");

   }*/

RTC.setAlarm1Simple(21, 35);

    RTC.turnOnAlarm(1);

RTC.setAlarm1Simple(21, 36);

    RTC.turnOnAlarm(2);

  if (RTC.checkAlarmEnabled(1)) {

    Serial.println("Alarm Enabled");

  }

}

void loop () {

  DateTime now = RTC.now();

  Serial.print(now.year(), DEC);

  Serial.print('/');

  Serial.print(now.month(), DEC);

  Serial.print('/');

  Serial.print(now.day(), DEC);

  Serial.print(' ');

  Serial.print(now.hour(), DEC);

  Serial.print(':');

  Serial.print(now.minute(), DEC);

  Serial.print(':');

  Serial.print(now.second(), DEC);

  lcd.setCursor(1, 1);

  lcd.print(now.year(), DEC);

  lcd.print('/');

  lcd.print(now.month(), DEC);

  lcd.print('/');

  lcd.print(now.day(), DEC);

  //lcd.print(' ');

  lcd.setCursor(11, 1);

  lcd.print(now.hour(), DEC);

  lcd.print(':');

  lcd.print(now.minute(), DEC);

  lcd.print(':');

  lcd.print(now.second(), DEC);

  if (RTC.checkIfAlarm(1)) {

    Serial.println("ledlight ON");

    digitalWrite(light, HIGH);  

  }

   if (RTC.checkIfAlarm(2)) {

    Serial.println("ledlight ON");

    digitalWrite(pum, HIGH);  

  }

  /*

  if (now.hour == 21)

     {

      digitalWrite(light,HIGH);

     }

 */

   lcd.setCursor(1, 2);

   lcd.print("Tempeature = ");

  Serial.println();

  Serial.print("Tempeature = ");

  Serial.print(RTC.getTemperature()); // คำสั่งดึงอุณหภูมิออกมาแสดง

   lcd.print(RTC.getTemperature()); // คำสั่งดึงอุณหภูมิออกมาแสดง

    lcd.print('C');

  Serial.println("C");

  Serial.println(); 

  delay(1000);

}