/* Epoch This sketch shows how to configure the RTC alarm Creation 12 Dec 2017 by Wi6Labs Modified 03 Jul 2020 by Frederic Pillon for STMicroelectronics This example code is in the public domain. https://github.com/stm32duino/STM32RTC */ #include /* Get the rtc object */ STM32RTC& rtc = STM32RTC::getInstance(); /* 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); // Select RTC clock source: LSI_CLOCK, LSE_CLOCK or HSE_CLOCK. // By default the LSI is selected as source. //rtc.setClockSource(STM32RTC::LSE_CLOCK); rtc.begin(); // initialize RTC 24H format rtc.setTime(hours, minutes, seconds); rtc.setDate(day, month, year); rtc.attachInterrupt(alarmMatch); rtc.setAlarmDay(day); rtc.setAlarmTime(16, 0, 10, 123); rtc.enableAlarm(rtc.MATCH_DHHMMSS); } void loop() { } void alarmMatch(void *data) { UNUSED(data); Serial.println("Alarm Match!"); }