Add RTC Alarm setters

Author: sebromero

src/Arduino_LowPowerPortentaC33.cpp

@@ -20,12 +20,56 @@ void LowPower::sleep(){
 void LowPower::deepSleep(){
     RenesasLowPowerConfig.low_power_mode = LPM_MODE_DEEP;
 
-    
-
     R_LPM_Open(&RenesasLowPowerControlBlock, &RenesasLowPowerConfig);
     R_LPM_LowPowerModeEnter(&RenesasLowPowerControlBlock);
 }
 
+bool LowPower::setWakeUpAlarm(RTCTime alarmTime){
+    this->enableWakeupFromRTC();
+
+    if(!RTC.isRunning()){
+        return false;
+    }
+
+    RTCTime currentTime;
+    if (!RTC.getTime(currentTime)) {
+        return false; // Failed to get current time
+    }
+
+    // Configure the alarm match criteria
+    AlarmMatch match;
+    match.addMatchSecond(); // Trigger the alarm when the seconds match
+    match.addMatchMinute(); // Trigger the alarm when the minutes match
+    match.addMatchHour();   // Trigger the alarm when the hours match
+    match.addMatchDay();    // Trigger the alarm when the days match
+    match.addMatchMonth();  // Trigger the alarm when the months match
+    match.addMatchYear();   // Trigger the alarm when the years match
+
+    return RTC.setAlarm(alarmTime, match);
+}
+
+bool LowPower::setWakeUpAlarm(uint8_t hours, uint8_t minutes, uint8_t seconds){
+
+    if(!RTC.isRunning()){
+        return false;
+    }
+
+    // Get the current time from the RTC
+    RTCTime currentTime;
+    if (!RTC.getTime(currentTime)) {
+        return false; // Failed to get current time
+    }
+
+    // Convert current time to UNIX timestamp and add the desired interval
+    time_t currentTimestamp = currentTime.getUnixTime();
+    currentTimestamp += hours * 3600 + minutes * 60 + seconds;
+
+    // Convert back to RTCTime
+    RTCTime alarmTime(currentTimestamp);
+
+    return this->setWakeUpAlarm(alarmTime);
+}
+
 void LowPower::enableWakeupFromRTC(){
     RenesasLowPowerConfig.deep_standby_cancel_source = LPM_DEEP_STANDBY_CANCEL_SOURCE_RTC_ALARM;
     RenesasLowPowerConfig.standby_wake_sources = LPM_STANDBY_WAKE_SOURCE_RTCALM;

src/Arduino_LowPowerPortentaC33.h

@@ -3,6 +3,7 @@
 
 #include "r_lpm.h"
 #include "Arduino.h"
+#include "RTC.h"
 
 
 /**
@@ -40,13 +41,15 @@ class LowPower {
      */
     bool enableWakeupFromPin(uint8_t pin, PinStatus direction);
 
+    bool setWakeUpAlarm(RTCTime alarmTime);
+    bool setWakeUpAlarm(uint8_t hours, uint8_t minutes, uint8_t seconds);
+
+private:
     /**
      * Enables wake-up of the device based on the Real-Time Clock (RTC).
      */
     void enableWakeupFromRTC();
 
-
-private:
     /**
      * Retrieves the IRQ channel associated with a standby wake-up source for a given pin.
      * @param pin The pin number.