Add get alarm helper to reduce code duplication

ds3231.hpp

@@ -142,6 +142,15 @@ class DS3231 {
 		return dateTime;
 	}
 
+	static DateTime getAlarm1()
+	{
+		return getAlarmHelper<ALARM1_REG_ADDR>();
+	}
+	static DateTime getAlarm2()
+	{
+		return getAlarmHelper<ALARM2_REG_ADDR>();
+	}
+
 	static void setDate(const Date &date)
 	{
 		detail::TimeReg timeReg;
@@ -299,6 +308,24 @@ class DS3231 {
 		writePartialRegister<0, sizeof(Register) - 1>(reg);
 	}
 
+	template <uint8_t Address>
+	static inline auto getAlarmHelper()
+	{
+		constexpr auto IsAlarm1 = Address == ALARM1_REG_ADDR;
+		static_assert(IsAlarm1 || Address == ALARM2_REG_ADDR, "Must use valid alarm address");
+
+		const auto alarmReg = readRegister<Address>();
+
+		DateTime alarmTime = {};
+		alarmReg.getDate(alarmTime.day);
+		alarmTime.hour = alarmReg.getHours();
+		alarmTime.minute = alarmReg.getMinutes();
+		if constexpr (IsAlarm1)
+			alarmTime.second = alarmReg.getSeconds();
+
+		return alarmTime;
+	}
+
 	template <typename AlarmRate>
 	static inline void setAlarmHelper(const DateTime &alarmTime, const AlarmRate &alarmRate)
 	{