Refactor C33 RTC wakeup example

Author: sebromero

Diff for: examples/Standby_WakeFromRTC_C33/Standby_WakeFromRTC_C33.ino

@@ -1,42 +1,44 @@
 
-#include "Arduino.h"
 #include "Arduino_PowerManagement.h"
 #include "RTC.h"
 
-RTCTime initial_time(1, Month::JANUARY, 2000, 12, 10, 00, DayOfWeek::TUESDAY, SaveLight::SAVING_TIME_ACTIVE);
+RTCTime initialTime(1, Month::JANUARY, 2000, 12, 10, 00, DayOfWeek::TUESDAY, SaveLight::SAVING_TIME_ACTIVE);
 
-LowPower lowPower;
-PowerManagement manager;
 Board board; 
-Charger charger;
+
+void blinkLed(int ledPin, int delayTime = 1000){
+    digitalWrite(ledPin, LOW);
+    delay(delayTime);
+    digitalWrite(ledPin, HIGH);
+    delay(delayTime);
+}
 
 void setup() {
+    pinMode(LEDR, OUTPUT); // Used to indicate errors
+    digitalWrite(LEDR, HIGH); // Turn off the red LED
     pinMode(LED_BUILTIN, OUTPUT);
-    digitalWrite(LED_BUILTIN, LOW);
+    digitalWrite(LED_BUILTIN, HIGH); // Turn off the built-in LED
+    pinMode(LEDB, OUTPUT); // Used to indicate that the board is awake    
+    
+    // Turn on the blue LED to show that the board is still awake
+    digitalWrite(LEDB, LOW);
 
     RTC.begin();
 
-    manager = PowerManagement();
-    manager.begin();
-    board = manager.getBoard();
-
-    board.enableWakeupFromRTC();
-    board.setAllPeripheralsPower(true);
+    if(!board.begin()){
+        while (true){
+            blinkLed(LEDR);
+        }
+    }
 
+    board.enableWakeupFromRTC(0, 0, 10); // Sleep for 60 seconds
+    board.setAllPeripheralsPower(true); // TODO: Check if this is necessary
 
     if (!RTC.isRunning()) {
-        RTC.setTime(initial_time);
+        RTC.setTime(initialTime);
     }
 
-    digitalWrite(LED_BUILTIN, HIGH);
-    board.sleepFor(0, 0, 10);
-
-    // Turn LED on to indicate the board is awake
-    digitalWrite(LED_BUILTIN, LOW);
-}
-
-void loop(){
-    //board.setAllPeripheralsPower(false);
     board.standByUntilWakeupEvent();
 }
 
+void loop(){}