enableAlarm()
Description
Enable the RTC alarm to be triggered on a chosen match type
Syntax
rtc.enableAlarm(rtc.AlarmMatch)
Parameters
AlarmMatch: the chosen match type that can be chosen between:
－ MATCH_SS: generate an alarm on seconds match;
－ MATCH_MMSS: generate an alarm on minutes and seconds match;
－ MATCH_HHMMSS: generate an alarm on hours, minutes and seconds match;
－ MATCH_DHHMMSS: generate an alarm on day, hours, minutes and seconds match;
－ MATCH_MMDDHHMMSS: generate an alarm on month, day, hours, minutes and seconds match;
－ MATCH_YYMMDDHHMMSS: generate an alarm on year, month, day, hours, minutes and seconds match;
Example
#include <RTCZero.h>
/* Create an rtc object */
RTCZero rtc;
/* Change these values to set the current initial time */
const byte seconds = 0;
const byte minutes = 0;
const byte hours = 16;
/* Change these values to set the current initial date */
const byte day = 25;
const byte month = 9;
const byte year = 15;
void setup()
{
Serial.begin(9600);
rtc.begin(); // initialize RTC 24H format
rtc.setTime(hours, minutes, seconds);
rtc.setDate(day, month, year);
rtc.setAlarmTime(16, 0, 10);
rtc.enableAlarm(rtc.MATCH_HHMMSS);
rtc.attachInterrupt(alarmMatch);
}
void loop()
{
}
void alarmMatch()
{
Serial.println("Alarm Match!");
}
See also
The text of the 86Duino reference is a modification of the Arduino reference, and is licensed under a Creative Commons Attribution-ShareAlike 3.0 License. Code samples in the reference are released into the public domain.
