Add files via upload

2026-01-04 22:27:45 +01:00
commit 945278cc80
6 changed files with 870 additions and 0 deletions
--- a/2exampleTimeInBrowser/2exampleTimeInBrowser.ino
+++ b/2exampleTimeInBrowser/2exampleTimeInBrowser.ino
@@ -0,0 +1,115 @@
+#include <WiFi.h>
+#include <WebServer.h>
+#include <time.h>
+
+// ====== CHANGE THESE ======
+const char* ssid     = "Bertovic";
+const char* password = "18072019";
+
+// Time / NTP
+const char* ntpServer = "pool.ntp.org";
+
+// Timezone: Croatia (Europe/Zagreb) is usually UTC+1, and UTC+2 in DST.
+// Simplest fixed offset: set UTC+1 (3600). If you want DST auto, tell me and I’ll give that version.
+const long gmtOffset_sec = 3600;      // UTC+1
+const int daylightOffset_sec = 0;     // Set 3600 if you want to force DST (not automatic)
+
+// Web server
+WebServer server(80);
+
+String formatTimeNow() {
+  struct tm timeinfo;
+  if (!getLocalTime(&timeinfo)) {
+    return String("Time not available (NTP not synced yet)");
+  }
+
+  char buf[32];
+  // YYYY-MM-DD HH:MM:SS
+  strftime(buf, sizeof(buf), "%Y-%m-%d %H:%M:%S", &timeinfo);
+  return String(buf);
+}
+
+void handleRoot() {
+  // Simple HTML page that fetches /time every second
+  String html = R"rawliteral(
+<!DOCTYPE html>
+<html>
+<head>
+  <meta charset="utf-8">
+  <meta name="viewport" content="width=device-width, initial-scale=1">
+  <title>ESP32 Time</title>
+  <style>
+    body { font-family: Arial, sans-serif; margin: 24px; }
+    .card { padding: 16px; border: 1px solid #ddd; border-radius: 12px; max-width: 420px; }
+    #t { font-size: 1.6rem; font-weight: 700; }
+    .small { color: #666; margin-top: 8px; }
+  </style>
+</head>
+<body>
+  <div class="card">
+    <div>Current time:</div>
+    <div id="t">Loading...</div>
+    <div class="small">Updates every second</div>
+  </div>
+
+  <script>
+    async function updateTime(){
+      try{
+        const r = await fetch('/time', { cache: 'no-store' });
+        const text = await r.text();
+        document.getElementById('t').textContent = text;
+      } catch(e){
+        document.getElementById('t').textContent = 'Error';
+      }
+    }
+    updateTime();
+    setInterval(updateTime, 1000);
+  </script>
+</body>
+</html>
+)rawliteral";
+
+  server.send(200, "text/html", html);
+}
+
+void handleTime() {
+  server.send(200, "text/plain", formatTimeNow());
+}
+
+void setup() {
+  Serial.begin(115200);
+
+  // Connect Wi-Fi
+  WiFi.begin(ssid, password);
+  Serial.print("Connecting to WiFi");
+  while (WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+  }
+  Serial.println("\nWiFi connected!");
+  Serial.print("ESP32 IP address: ");
+  Serial.println(WiFi.localIP());
+
+  // NTP time init
+  configTime(gmtOffset_sec, daylightOffset_sec, ntpServer);
+
+  // Optional: wait a bit for first sync
+  Serial.println("Syncing time...");
+  for (int i = 0; i < 15; i++) {
+    if (formatTimeNow().indexOf("not available") == -1) break;
+    delay(500);
+  }
+  Serial.println("Current time: " + formatTimeNow());
+
+  // Web routes
+  server.on("/", handleRoot);
+  server.on("/time", handleTime);
+
+  server.begin();
+  Serial.println("Web server started. Open the IP in your browser.");
+}
+
+void loop() {
+  server.handleClient();
+}
+