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rtc_manager.h

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+// rtc_manager.h - RTC Manager for DS3231
+
+#ifndef RTC_MANAGER_H
+#define RTC_MANAGER_H
+
+#include <Arduino.h>
+#include <RTClib.h>
+#include <Wire.h>
+#include <time.h>
+
+#include "config.h"
+#include "task_config.h"
+
+// RTC instance
+extern RTC_DS3231 rtc;
+
+// RTC status
+extern bool rtcInitialized;
+
+// Initialize RTC
+bool initRTC();
+
+// Check if RTC is running
+bool isRTCRunning();
+
+// Set RTC time (Unix timestamp)
+void setRTCTime(uint32_t unixtime);
+
+// Get RTC time (Unix timestamp)
+uint32_t getRTCTime();
+
+// Get formatted time string
+String getRTCTimeString();
+
+// Sync time from NTP (WiFi STA mode)
+bool syncTimeFromNTP();
+
+// Time Sync Task (runs on Core 1)
+void timeSyncTask(void *pvParameters);
+
+// Get current timestamp in microseconds
+uint64_t getMicrosTimestamp();
+
+// Convert Unix time to formatted string
+String unixTimeToString(uint32_t unixtime);
+
+// Set system time from RTC
+void syncSystemTimeFromRTC();
+
+#endif // RTC_MANAGER_H