Update rtc.md

Author: karlsoderby

content/hardware/02.hero/boards/uno-r4-minima/tutorials/rtc/rtc.md

@@ -20,7 +20,7 @@ The goals of this project are:
 ## Hardware & Software Needed
 
 - Arduino IDE ([online](https://create.arduino.cc/) or [offline](https://www.arduino.cc/en/main/software)).
-- [Arduino R4 Minima]().
+- [Arduino R4 Minima](/hardware/uno-r4-minima).
 - [Arduino Renesas Core](https://github.com/bcmi-labs/ArduinoCore-renesas)
 
 ## Real-Time Clock (RTC)
@@ -227,8 +227,6 @@ The period can be specified using the following enumerations:
 
 ### Alarm Callback
 
-
-
 - `RTC.setAlarmCallback(alarm_cbk, alarmtime, am)`
 
 ```arduino
@@ -259,206 +257,4 @@ void alarm_cbk() {
 
 This tutorial shows how to use the RTC on the UNO R4 Minima, such as setting a start time, setting an alarm, or obtaining time in calendar or unix format.
 
-Read more about this board in the [Arduino UNO R4 Minima documentation]().
-
----
-
-## API
-
-The API is listed below:
-
-## RTClock Class
-The `RTClock` class is responsible for managing the real-time clock. It provides methods for initializing the clock, retrieving the current time, setting periodic callbacks, setting alarm callbacks, checking if the clock is running, and setting the time.
-
-### Constructor
-- `RTClock()`
-  - Initializes a new `RTClock` object.
-
-### Destructor
-- `~RTClock()`
-  - Destroys the `RTClock` object.
-
-### Member Functions
-- `bool begin()`
-  - Initializes the real-time clock. Returns `true` if successful, `false` otherwise.
-- `bool getTime(RTCTime &t)`
-  - Retrieves the current time and stores it in the provided `RTCTime` object. Returns `true` if successful, `false` otherwise.
-- `bool setPeriodicCallback(rtc_cbk_t fnc, Period p)`
-  - Sets a periodic callback function to be called at the specified interval. The callback function should have the signature `void callback()`. Returns `true` if successful, `false` otherwise.
-- `bool setAlarmCallback(rtc_cbk_t fnc, RTCTime &t, AlarmMatch &m)`
-  - Sets an alarm callback function to be called when the specified time and match conditions are met. The callback function should have the signature `void callback()`. Returns `true` if successful, `false` otherwise.
-- `bool isRunning()`
-  - Checks if the real-time clock is running. Returns `true` if running, `false` otherwise.
-- `bool setTime(RTCTime &t)`
-  - Sets the current time to the specified `RTCTime` object. Returns `true` if successful, `false` otherwise.
-- `bool setTimeIfNotRunning(RTCTime &t)`
-  - Sets the current time to the specified `RTCTime` object only if the clock is not already running. Returns `true` if successful, `false` otherwise.
-
-### External Object
-- `RTClock RTC`
-  - An external instance of the `RTClock` class that can be used to access the real-time clock functionality.
-
-## RTCTime Class
-The `RTCTime` class represents a specific time and date. It provides methods for setting and retrieving different components of the time and date.
-
-### Constructors
-- `RTCTime()`
-  - Initializes a new `RTCTime` object with default values.
-- `RTCTime(struct tm &t)`
-  - Initializes a new `RTCTime` object from a `struct tm` object.
-- `RTCTime(int _day, Month _m, int _year, int _hours, int _minutes, int _seconds, DayOfWeek _dow, SaveLight _sl)`
-  - Initializes a new `RTCTime` object with the specified day, month, year, hours, minutes, seconds, day of the week, and daylight saving status.
-
-### Destructor
-- `~RTCTime()`
-  - Destroys the `RTCTime` object.
-
-### Setters
-- `bool setDayOfMonth(int day)`
-  - Sets the day of the month. Accepts a value from 1 to 31. Returns `true` if successful, `false` otherwise.
-- `bool setMonthOfYear(Month m)`
-  - Sets the month of the year. Accepts a value from 1 (January) to 12 (December). Returns `true` if successful, `false` otherwise.
-- `bool setYear(int year)`
-  - Sets the year. Accepts the year as a four-digit value (e.g., 1989 or 2022). Returns `true` if successful, `false` otherwise.
-- `bool setHour(int hour)`
-  - Sets the hour. Accepts a value from 0 (midnight) to 23. Returns `true` if successful, `false` otherwise.
-- `bool setMinute(int minute)`
-  - Sets the minute. Accepts a value from 0 to 59. Returns `true` if successful, `false` otherwise.
-- `bool setSecond(int second)`
-  - Sets the second. Accepts a value from 0 to 59. Returns `true` if successful, `false` otherwise.
-- `bool setDayOfWeek(DayOfWeek d)`
-  - Sets the day of the week. Accepts a value from 0 (Sunday) to 6 (Saturday). Returns `true` if successful, `false` otherwise.
-- `bool setSaveLight(SaveLight sl)`
-  - Sets the daylight saving status. Accepts a `SaveLight` value (`SAVING_TIME_INACTIVE` or `SAVING_TIME_ACTIVE`). Returns `true` if successful, `false` otherwise.
-- `void setTM(struct tm &t)`
-  - Sets the time and date using a `struct tm` object.
-
-### Getters
-- `int getDayOfMonth()`
-  - Returns the day of the month.
-- `Month getMonth()`
-  - Returns the month of the year as a `Month` enum value.
-- `int getYear()`
-  - Returns the year.
-- `int getHour()`
-  - Returns the hour.
-- `int getMinutes()`
-  - Returns the minutes.
-- `int getSeconds()`
-  - Returns the seconds.
-- `DayOfWeek getDayOfWeek()`
-  - Returns the day of the week as a `DayOfWeek` enum value.
-- `time_t getUnixTime()`
-  - Returns the time in Unix timestamp format.
-- `struct tm getTmTime()`
-  - Returns the time and date as a `struct tm` object.
-
-## Enumerations
-
-### Month
-- `JANUARY`
-- `FEBRUARY`
-- `MARCH`
-- `APRIL`
-- `MAY`
-- `JUNE`
-- `JULY`
-- `AUGUST`
-- `SEPTEMBER`
-- `OCTOBER`
-- `NOVEMBER`
-- `DECEMBER`
-
-### DayOfWeek
-- `MONDAY`
-- `TUESDAY`
-- `WEDNESDAY`
-- `THURSDAY`
-- `FRIDAY`
-- `SATURDAY`
-- `SUNDAY`
-
-### SaveLight
-- `SAVING_TIME_INACTIVE`
-- `SAVING_TIME_ACTIVE`
-
-## Structures
-
-### Timeval
-- `time_t tv_sec`
-- `useconds_t tv_usec`
-
-## Functions
-The following functions are declared and defined in the library:
-
-### External C Functions
-- `void set_time(time_t t)`
-- `void attach_rtc(time_t (*read_rtc)(void), void (*write_rtc)(time_t), void (*init_rtc)(void), int (*isenabled_rtc)(void))`
-- `int gettimeofday(struct timeval *tv, void *tz)`
-- `int settimeofday(const struct timeval *tv, const struct timezone *tz)`
-
-### Helper Functions
-- `int Month2int(Month m)`
-- `int DayOfWeek2int(D
-
-ayOfWeek dow, bool sunday_first)`
-- `bool SaveLigth2bool(SaveLight sl)`
-
-### AlarmMatch Class
-The `AlarmMatch` class represents a set of match conditions for alarm triggers.
-
-#### Constructor
-- `AlarmMatch()`
-  - Initializes a new `AlarmMatch` object.
-
-#### Destructor
-- `~AlarmMatch()`
-  - Destroys the `AlarmMatch` object.
-
-#### Member Functions
-- `void addMatchSecond()`
-  - Adds a match condition for seconds.
-- `void addMatchMinute()`
-  - Adds a match condition for minutes.
-- `void addMatchHour()`
-  - Adds a match condition for hours.
-- `void addMatchDay()`
-  - Adds a match condition for days.
-- `void addMatchMonth()`
-  - Adds a match condition for months.
-- `void addMatchYear()`
-  - Adds a match condition for years.
-- `void addMatchDayOfWeek()`
-  - Adds a match condition for days of the week.
-- `void removeMatchSecond()`
-  - Removes the match condition for seconds.
-- `void removeMatchMinute()`
-  - Removes the match condition for minutes.
-- `void removeMatchHour()`
-  - Removes the match condition for hours.
-- `void removeMatchDay()`
-  - Removes the match condition for days.
-- `void removeMatchMonth()`
-  - Removes the match condition for months.
-- `void removeMatchYear()`
-  - Removes the match condition for years.
-- `void removeMatchDayOfWeek()`
-  - Removes the match condition for days of the week.
-- `bool isMatchingSecond()`
-  - Checks if the match condition for seconds is set.
-- `bool isMatchingMinute()`
-  - Checks if the match condition for minutes is set.
-- `bool isMatchingHour()`
-  - Checks if the match condition for hours is set.
-- `bool isMatchingDay()`
-  - Checks if the match condition for days is set.
-- `bool isMatchingMonth()`
-  - Checks if the match condition for months is set.
-- `bool isMatchingYear()`
-  - Checks if the match condition for years is set.
-- `bool isMatchingDayOfWeek()`
-  - Checks if the match condition for days of the week is set.
-
-## Additional Definitions
-- `using stime_t = struct tm`
-- `using rtc_cbk_t = void (*)()`
+Read more about this board in the [Arduino UNO R4 Minima documentation](/hardware/uno-r4-minima).