added support for ota and ntp

ChronoDisplay.ino

@@ -6,6 +6,9 @@
 #include "ChronoReadingManager.h"
 #include "ChronoWebServer.h"
 #include "FileManager.h"
+#include <WiFi.h>
+#include <time.h>
+#include <sys/time.h>
 
 //testing mode variables
 static bool testMode=false;
@@ -64,10 +67,13 @@ void setup()
     FileManager& files = FileManager::getInstance();
     files.init();
 
-    //initialize web portal
+    //initialize web portal (also connects to WiFi)
     webServer.init();
     webServer.setTestModeCallback(toggleTestMode);
 
+    //sync time via NTP after WiFi is connected
+    setDateTime();
+
     //initialize display
     Display::init();
 
@@ -83,32 +89,45 @@ void setup()
     chronoBLE.setSpeedCallback(speedCallback);
 }
 void setDateTime(){
-    // Example: Set time to January 1, 2025, 12:00:00
-  struct tm t;
-  t.tm_year = 2025 - 1900; // Year - 1900
-  t.tm_mon = 7;            // Month (0-11, where 0 = Jan)
-  t.tm_mday = 4;           // Day of the month (1-31)
-  t.tm_hour = 14;          // Hour (0-23)
-  t.tm_min = 56;            // Minute (0-59)
-  t.tm_sec = 0;            // Second (0-59)
-  t.tm_isdst = -1;         // Is DST on? 1 = yes, 0 = no, -1 = unknown
+  // NTP server configuration
+  configTime("EST5EDT,M3.2.0/2,M11.1.0/2", "pool.ntp.org", "time.nist.gov");
 
-  time_t epoch_time = mktime(&t);
-
-  struct timeval tv;
-  tv.tv_sec = epoch_time;
-  tv.tv_usec = 0;
-
-  settimeofday(&tv, NULL);
-
-  // Verify the set time
+  // Wait for time to be set
   time_t now;
-  char strftime_buf[64];
   struct tm timeinfo;
+  int retry = 0;
+  const int maxRetry = 20; // 10 seconds max
 
-  time(&now);
-  localtime_r(&now, &timeinfo);
-  strftime(strftime_buf, sizeof(strftime_buf), "%c", &timeinfo);
+  while (retry < maxRetry) {
+    time(&now);
+    localtime_r(&now, &timeinfo);
+
+    // Check if we have a valid time (year > 2020)
+    if (timeinfo.tm_year > 120) {  // 120 = year 2020
+      Serial.println("Time synced via NTP");
+      break;
+    }
+    Serial.print("Waiting for NTP sync... ");
+    Serial.println(retry);
+    delay(500);
+    retry++;
+  }
+
+  // If still not synced, fall back to a default date
+  if (timeinfo.tm_year <= 120) {
+    Serial.println("NTP sync failed, using fallback date");
+    timeinfo.tm_year = 2024 - 1900;
+    timeinfo.tm_mon = 0;  // January
+    timeinfo.tm_mday = 1;
+    timeinfo.tm_hour = 0;
+    timeinfo.tm_min = 0;
+    timeinfo.tm_sec = 0;
+    timeinfo.tm_isdst = -1;
+
+    now = mktime(&timeinfo);
+    struct timeval tv = {.tv_sec = now};
+    settimeofday(&tv, NULL);
+  }
 }
 void updateTime(){
     time_t now;