update navigation links, enhance NFC data display, and improve MQTT connection handling

html/header.html

@@ -20,7 +20,7 @@
             <a href="/">Start</a>
             <a href="/waage">Scale</a>
             <a href="/spoolman">Spoolman/Bambu</a>
-            <a href="/rfid">RFID</a>
+            <a href="/">About</a>
         </nav>
         <div class="status-container">
             <div class="status-item">

html/rfid.js

@@ -448,7 +448,7 @@ function updateNfcData(data) {
 
     // HTML für die Datenanzeige erstellen
     let html = `
-        <div style="margin-top: 10px;">
+        <div class="nfc-card-data" style="margin-top: 10px;">
             <p><strong>Brand:</strong> ${data.brand || 'N/A'}</p>
             <p><strong>Type:</strong> ${data.type || 'N/A'} ${data.color_hex ? `<span style="
                 background-color: #${data.color_hex}; 

html/style.css

@@ -255,7 +255,7 @@ button:hover {
 
 p {
     font-size: 1rem;
-    color: #555;
+    color: #ffffff;
 }
 
 a {
@@ -325,6 +325,13 @@ a:hover {
     margin-top: 10px;
 }
 
+.nfc-card-data {
+    padding-left: 20px !important;
+    color: white !important;
+    font-weight: bold !important;
+    margin: 0 auto !important;
+}
+
 .nfc-success {
     color: green;
 }

src/bambu.cpp

@@ -422,9 +422,6 @@ void reconnect() {
 }
 
 void mqtt_loop(void * parameter) {
-    oledShowMessage("Bambu Connected");
-    bambu_connected = true;
-    oledShowTopRow();
     for(;;) {
         if (pauseBambuMqttTask) {
             vTaskDelay(10000);
@@ -452,13 +449,16 @@ bool setupMqtt() {
         return false;
     }
 
-    if (success && bambu_ip != "" && bambu_accesscode != "" && bambu_serialnr != "") {
+    if (success && bambu_ip != "" && bambu_accesscode != "" && bambu_serialnr != "") 
+    {
         sslClient.setCACert(root_ca);
         sslClient.setInsecure();
         client.setServer(bambu_ip, 8883);
 
         // Verbinden mit dem MQTT-Server
-        if (client.connect(bambu_serialnr, bambu_username, bambu_accesscode)) {
+        bool connected = true;
+        if (client.connect(bambu_serialnr, bambu_username, bambu_accesscode)) 
+        {
             client.setCallback(mqtt_callback);
             client.setBufferSize(5120);
             // Optional: Topic abonnieren
@@ -467,6 +467,17 @@ bool setupMqtt() {
             Serial.println("MQTT-Client initialisiert");
 
             oledShowTopRow();
+            oledShowMessage("Bambu Connected");
+            bambu_connected = true;
+        } 
+        else 
+        {
+            Serial.println("Fehler: Konnte sich nicht beim MQTT-Server anmelden");
+            oledShowMessage("Bambu Connection Failed");
+            oledShowTopRow();
+            vTaskDelay(2000 / portTICK_PERIOD_MS);
+            connected = false;
+        }
 
         xTaskCreatePinnedToCore(
             mqtt_loop, /* Function to implement the task */
@@ -477,14 +488,10 @@ bool setupMqtt() {
             &BambuMqttTask,  /* Task handle. */
             mqttTaskCore); /* Core where the task should run */
 
-        } else {
+        if (!connected) return false;
-            Serial.println("Fehler: Konnte sich nicht beim MQTT-Server anmelden");
-            oledShowMessage("Bambu Connection Failed");
-            oledShowTopRow();
-            vTaskDelay(2000 / portTICK_PERIOD_MS);
-            return false;
     } 
-    } else {
+    else 
+    {
         Serial.println("Fehler: Keine MQTT-Daten vorhanden");
         oledShowMessage("Bambu Credentials Missing");
         oledShowTopRow();

src/nfc.cpp

@@ -379,6 +379,8 @@ void scanRfidTask(void * parameter) {
     // Wenn geschrieben wird Schleife aussetzen
     if (hasReadRfidTag != 3)
     {
+      yield();
+
       uint8_t success;
       uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 };  // Buffer to store the returned UID
       uint8_t uidLength;

src/website.cpp

@@ -25,7 +25,7 @@ void onWsEvent(AsyncWebSocket *server, AsyncWebSocketClient *client, AwsEventTyp
         sendAmsData(client);
         sendNfcData(client);
         foundNfcTag(client, hasReadRfidTag);
-        sendWriteResult(client, 0);
+        sendWriteResult(client, 3);
     } else if (type == WS_EVT_DISCONNECT) {
         Serial.println("Client getrennt.");
     } else if (type == WS_EVT_DATA) {