docs: update changelog and header for version v1.5.6

Changes configuration storage of spoolman and bambu values

.gitignore

@@ -0,0 +1,8 @@
+.pio
+.vscode/.browse.c_cpp.db*
+.vscode/c_cpp_properties.json
+.vscode/launch.json
+.vscode/ipch
+.vscode/extensions.json
+.vscode/settings.json
+data

CHANGELOG.md

@@ -1,5 +1,51 @@
 # Changelog
 
+## [1.5.6] - 2025-07-28
+### Added
+- Adds ENABLE_HEAP_DEBUGGING define as comment to the build flags
+- Adds data directory and further .vscode files to to .gitignore
+- Introduces new heap debugging feature and fixes some memory leaks in website feature
+
+### Changed
+- update webpages for version v1.5.6
+- update platformio.ini for version v1.5.6
+- Merge pull request #42 from janecker/configuration_nvs_storage
+- Merge branch 'main' into configuration_nvs_storage
+- Changes configuration storage of spoolman and bambu values
+
+### Fixed
+- Merge pull request #41 from janecker/memory_leak_fixes
+- Fixes compiler warnings in nfc
+- Memory leak fixes in api and nfc, location tag fix
+
+
+## [1.5.5] - 2025-07-22
+### Added
+- Fixes some issues with the new location tags
+
+### Changed
+- update platformio.ini for version v1.5.5
+
+### Fixed
+- Merge pull request #40 from janecker/location_bambu_fix
+
+
+## [1.5.4] - 2025-07-22
+### Added
+- Adds new feature to write and read location tags
+- Adds slight debouncing to the scale loop weight logic
+- add loadcell desc.
+
+### Changed
+- update platformio.ini for version v1.5.4
+- Merge branch 'main' of github.com:ManuelW77/Filaman
+- Merge pull request #39 from janecker/location_tags
+- Merge pull request #38 from janecker/scale_debouncing
+
+### Fixed
+- uncomment monitor_port configuration in platformio.ini
+
+
 ## [1.5.3] - 2025-04-25
 ### Changed
 - update platformio.ini for version v1.5.3

README.de.md

@@ -90,6 +90,12 @@ Discord Server: [https://discord.gg/my7Gvaxj2v](https://discord.gg/my7Gvaxj2v)
 ![myWiring](./img/IMG_2589.jpeg)
 ![myWiring](./img/IMG_2590.jpeg)
 
+*Die Wägezelle wird bei den meisten HX711 Modulen folgendermaßen verkabelt:  
+E+ rot  
+E- schwarz  
+A- weiß  
+A+ grün*
+
 ## Software-Abhängigkeiten
 
 ### ESP32-Bibliotheken

README.md

@@ -94,6 +94,12 @@ Discord Server: [https://discord.gg/my7Gvaxj2v](https://discord.gg/my7Gvaxj2v)
 ![myWiring](./img/IMG_2589.jpeg)
 ![myWiring](./img/IMG_2590.jpeg)
 
+*The load cell is connected to most HX711 modules as follows:  
+E+ red  
+E- black  
+A- white  
+A+ green*
+
 ## Software Dependencies
 
 ### ESP32 Libraries

html/bambu_credentials.json

@@ -0,0 +1 @@
+{"bambu_ip": "192.168.1.14", "bambu_accesscode": "22772584", "bambu_serialnr": "01P00C492600230","autoSendToBambu":true,"autoSendTime": 60}

html/rfid.html

@@ -139,6 +139,18 @@
                 <p id="nfcInfo" class="nfc-status"></p>
                 <button id="writeNfcButton" class="btn btn-primary hidden" onclick="writeNfcTag()">Write Tag</button>
             </div>
+
+            <div class="feature-box">
+                <h2>Spoolman Locations</h2>
+                <label for="locationSelect">Location:</label>
+                <div style="display: flex; justify-content: space-between; align-items: center;">
+                    <select id="locationSelect" class="styled-select">
+                        <option value="">Please choose...</option>
+                    </select>
+                </div>
+                <p id="nfcInfoLocation" class="nfc-status"></p>
+                <button id="writeLocationNfcButton" class="btn btn-primary hidden" onclick="writeLocationNfcTag()">Write Location Tag</button>
+            </div>
         </div>
 
     </div>

html/rfid.js

@@ -555,7 +555,10 @@ function updateNfcData(data) {
     }
 
     // HTML für die Datenanzeige erstellen
-    let html = `
+    let html = "";
+
+    if(data.sm_id){
+        html = `
         <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="
@@ -568,10 +571,27 @@ function updateNfcData(data) {
                 border-radius: 3px;
                 margin-left: 5px;
             "></span>` : ''}</p>
-    `;
+        `;
 
-    // Spoolman ID anzeigen
-    html += `<p><strong>Spoolman ID:</strong> ${data.sm_id || 'No Spoolman ID'}</p>`;
+        // Spoolman ID anzeigen
+        html += `<p><strong>Spoolman ID:</strong> ${data.sm_id || 'No Spoolman ID'}</p>`;
+     }
+     else if(data.location)
+     {
+        html = `
+        <div class="nfc-card-data" style="margin-top: 10px;">
+            <p><strong>Location:</strong> ${data.location || 'N/A'}</p>
+        `;
+     }
+     else
+     {
+        html = `
+        <div class="nfc-card-data" style="margin-top: 10px;">
+            <p><strong>Unknown tag</strong></p>
+        `;
+     }
+
+    
 
     // Nur wenn eine sm_id vorhanden ist, aktualisiere die Dropdowns
     if (data.sm_id) {
@@ -647,16 +667,56 @@ function writeNfcTag() {
     }
 }
 
+function writeLocationNfcTag() {
+    const selectedText = document.getElementById("locationSelect").value;
+    if (selectedText === "Please choose...") {
+        alert('Please select a location first.');
+        return;
+    }
+    // Erstelle das NFC-Datenpaket mit korrekten Datentypen
+    const nfcData = {
+        location: String(selectedText)
+    };
+
+    if (socket?.readyState === WebSocket.OPEN) {
+        const writeButton = document.getElementById("writeLocationNfcButton");
+        writeButton.classList.add("writing");
+        writeButton.textContent = "Writing";
+        socket.send(JSON.stringify({
+            type: 'writeNfcTag',
+            payload: nfcData
+        }));
+    } else {
+        alert('Not connected to Server. Please check connection.');
+    }
+}
+
 function handleWriteNfcTagResponse(success) {
     const writeButton = document.getElementById("writeNfcButton");
-    writeButton.classList.remove("writing");
-    writeButton.classList.add(success ? "success" : "error");
-    writeButton.textContent = success ? "Write success" : "Write failed";
+    const writeLocationButton = document.getElementById("writeLocationNfcButton");
+    if(writeButton.classList.contains("writing")){
+        writeButton.classList.remove("writing");
+        writeButton.classList.add(success ? "success" : "error");
+        writeButton.textContent = success ? "Write success" : "Write failed";
 
-    setTimeout(() => {
-        writeButton.classList.remove("success", "error");
-        writeButton.textContent = "Write Tag";
-    }, 5000);
+        setTimeout(() => {
+            writeButton.classList.remove("success", "error");
+            writeButton.textContent = "Write Tag";
+        }, 5000);
+    }
+
+    if(writeLocationButton.classList.contains("writing")){
+        writeLocationButton.classList.remove("writing");
+        writeLocationButton.classList.add(success ? "success" : "error");
+        writeLocationButton.textContent = success ? "Write success" : "Write failed";
+
+        setTimeout(() => {
+            writeLocationButton.classList.remove("success", "error");
+            writeLocationButton.textContent = "Write Location Tag";
+        }, 5000);
+    }
+
+    
 }
 
 function showNotification(message, isSuccess) {

html/rfid_bambu.html

@@ -139,6 +139,18 @@
                 <p id="nfcInfo" class="nfc-status"></p>
                 <button id="writeNfcButton" class="btn btn-primary hidden" onclick="writeNfcTag()">Write Tag</button>
             </div>
+
+            <div class="feature-box">
+                <h2>Spoolman Locations</h2>
+                <label for="locationSelect">Location:</label>
+                <div style="display: flex; justify-content: space-between; align-items: center;">
+                    <select id="locationSelect" class="styled-select">
+                        <option value="">Please choose...</option>
+                    </select>
+                </div>
+                <p id="nfcInfoLocation" class="nfc-status"></p>
+                <button id="writeLocationNfcButton" class="btn btn-primary hidden" onclick="writeLocationNfcTag()">Write Location Tag</button>
+            </div>
         </div>
 
         <!-- Rechte Spalte -->

html/spoolman.html

@@ -146,20 +146,20 @@
 
         <div class="card">
             <div class="card-body">
-                <h5 class="card-title">Set URL/IP to your Spoolman-Instanz</h5>
-                <input type="text" id="spoolmanUrl" placeholder="http://ip-or-url-of-your-spoolman-instanz:port">
-                <h5 class="card-title">If you want to enable sending Spool to Spoolman Octoprint Plugin:</h5>
+                <h5 class="card-title">Set URL/IP to your Spoolman instance</h5>
+                <input type="text" id="spoolmanUrl" onkeydown="if(event.keyCode == 13) document.getElementById('btnSaveSpoolmanUrl').click()" placeholder="http://ip-or-url-of-your-spoolman-instance:port">
+                <h5 class="card-title">If you want to enable sending the spool to the Spoolman Octoprint plugin:</h5>
                 <p>
                     <input type="checkbox" id="spoolmanOctoEnabled" {{spoolmanOctoEnabled}} onchange="toggleOctoFields()"> Send to Octo-Plugin
                 </p>
                 <div id="octoFields" style="display: none;">
                     <p>
-                        <input type="text" id="spoolmanOctoUrl" placeholder="http://ip-or-url-of-your-octoprint-instanz:port" value="{{spoolmanOctoUrl}}">
+                        <input type="text" id="spoolmanOctoUrl" placeholder="http://ip-or-url-of-your-octoprint-instance:port" value="{{spoolmanOctoUrl}}">
                         <input type="text" id="spoolmanOctoToken" placeholder="Your Octoprint Token" value="{{spoolmanOctoToken}}">
                     </p>
                 </div>
                 
-                <button onclick="checkSpoolmanInstance()">Save Spoolman URL</button>
+                <button id="btnSaveSpoolmanUrl" onclick="checkSpoolmanInstance()">Save Spoolman URL</button>
                 <p id="statusMessage"></p>
             </div>
         </div>
@@ -169,16 +169,16 @@
                 <h5 class="card-title">Bambu Lab Printer Credentials</h5>
                 <div class="bambu-settings">
                     <div class="input-group">
-                        <label for="bambuIp">Bambu Drucker IP-Adresse:</label>
+                        <label for="bambuIp">Bambu Printer IP Address:</label>
                         <input type="text" id="bambuIp" placeholder="192.168.1.xxx" value="{{bambuIp}}">
                     </div>
                     <div class="input-group">
-                        <label for="bambuSerial">Drucker Seriennummer:</label>
+                        <label for="bambuSerial">Printer Serial Number:</label>
                         <input type="text" id="bambuSerial" placeholder="BBLXXXXXXXX" value="{{bambuSerial}}">
                     </div>
                     <div class="input-group">
                         <label for="bambuCode">Access Code:</label>
-                        <input type="text" id="bambuCode" placeholder="Access Code vom Drucker" value="{{bambuCode}}">
+                        <input type="text" id="bambuCode" placeholder="Access Code of the printer" value="{{bambuCode}}">
                     </div>
                     <hr>
                     <p>If activated, FilaMan will automatically update the next filled tray with the last scanned and weighed spool.</p>

html/spoolman.js

@@ -1,6 +1,7 @@
 // Globale Variablen
 let spoolmanUrl = '';
 let spoolsData = [];
+let locationData = [];
 
 // Hilfsfunktionen für Datenmanipulation
 function processSpoolData(data) {
@@ -133,6 +134,26 @@ function populateVendorDropdown(data, selectedSmId = null) {
     }
 }
 
+// Dropdown-Funktionen
+function populateLocationDropdown(data) {
+    const locationSelect = document.getElementById("locationSelect");
+    if (!locationSelect) {
+        console.error('locationSelect Element nicht gefunden');
+        return;
+    }
+
+    locationSelect.innerHTML = '<option value="">Bitte wählen...</option>';
+    // Dropdown mit gefilterten Herstellern befüllen - alphabetisch sortiert
+    Object.entries(data)
+        .sort(([, nameA], [, nameB]) => nameA.localeCompare(nameB)) // Sort vendors alphabetically by name
+        .forEach(([id, name]) => {
+            const option = document.createElement("option");
+            option.value = name;
+            option.textContent = name;
+            locationSelect.appendChild(option);
+        });
+}
+
 function updateFilamentDropdown(selectedSmId = null) {
     const vendorId = document.getElementById("vendorSelect").value;
     const dropdownContentInner = document.getElementById("filament-dropdown-content");
@@ -208,6 +229,13 @@ function updateFilamentDropdown(selectedSmId = null) {
     }
 }
 
+function updateLocationSelect(){
+    const writeLocationNfcButton = document.getElementById('writeLocationNfcButton');
+    if(writeLocationNfcButton){
+        writeLocationNfcButton.classList.remove("hidden");
+    }
+}
+
 function selectFilament(spool) {
     const selectedColor = document.getElementById("selected-color");
     const selectedText = document.getElementById("selected-filament");
@@ -261,10 +289,18 @@ async function initSpoolman() {
         
         const fetchedData = await fetchSpoolData();
         spoolsData = processSpoolData(fetchedData);
-        
+
         document.dispatchEvent(new CustomEvent('spoolDataLoaded', { 
             detail: spoolsData 
         }));
+        
+        locationData = await fetchLocationData();
+        
+        document.dispatchEvent(new CustomEvent('locationDataLoaded', { 
+            detail: locationData 
+        }));
+
+
     } catch (error) {
         console.error('Fehler beim Initialisieren von Spoolman:', error);
         document.dispatchEvent(new CustomEvent('spoolmanError', { 
@@ -292,6 +328,25 @@ async function fetchSpoolData() {
     }
 }
 
+async function fetchLocationData() {
+    try {
+        if (!spoolmanUrl) {
+            throw new Error('Spoolman URL ist nicht initialisiert');
+        }
+        
+        const response = await fetch(`${spoolmanUrl}/api/v1/location`);
+        if (!response.ok) {
+            throw new Error(`HTTP error! status: ${response.status}`);
+        }
+        
+        const data = await response.json();
+        return data;
+    } catch (error) {
+        console.error('Fehler beim Abrufen der Location-Daten:', error);
+        return [];
+    }
+}
+
 // Event Listener
 document.addEventListener('DOMContentLoaded', () => {
     initSpoolman();
@@ -300,6 +355,11 @@ document.addEventListener('DOMContentLoaded', () => {
     if (vendorSelect) {
         vendorSelect.addEventListener('change', () => updateFilamentDropdown());
     }
+
+    const locationSelect = document.getElementById('locationSelect');
+    if (locationSelect) {
+        locationSelect.addEventListener('change', () => updateLocationSelect());
+    }
     
     const onlyWithoutSmId = document.getElementById('onlyWithoutSmId');
     if (onlyWithoutSmId) {
@@ -312,6 +372,10 @@ document.addEventListener('DOMContentLoaded', () => {
     document.addEventListener('spoolDataLoaded', (event) => {
         populateVendorDropdown(event.detail);
     });
+
+    document.addEventListener('locationDataLoaded', (event) => {
+        populateLocationDropdown(event.detail);
+    });
     
     window.onclick = function(event) {
         if (!event.target.closest('.custom-dropdown')) {
@@ -342,6 +406,7 @@ window.getSpoolData = () => spoolsData;
 window.setSpoolData = (data) => { spoolsData = data; };
 window.reloadSpoolData = initSpoolman;
 window.populateVendorDropdown = populateVendorDropdown;
+window.populateLocationDropdown = populateLocationDropdown;
 window.updateFilamentDropdown = updateFilamentDropdown;
 window.toggleFilamentDropdown = () => {
     const content = document.getElementById("filament-dropdown-content");

html/spoolman_url.json

@@ -0,0 +1 @@
+{"url": "http://192.168.1.5:7912", "octoEnabled": true, "octoUrl": "http://192.168.1.17:5001", "octoToken": "O5zZ58mXRAyeGpVEj2ZZj-UPAPqJ2N7JgtD36mw1M4g"}

html/style.css

@@ -971,31 +971,35 @@ input[type="submit"]:disabled,
 }
 
 /* Schreib-Button */
-#writeNfcButton {
+#writeNfcButton, #writeLocationNfcButton {
     background-color: #007bff;
     color: white;
     transition: background-color 0.3s, color 0.3s;
     width: 160px;
 }
 
-#writeNfcButton.writing {
+#writeNfcButton.writing, #writeLocationNfcButton.writing {
     background-color: #ffc107;
     color: black;
     width: 160px;
 }
 
-#writeNfcButton.success {
+#writeNfcButton.success, #writeLocationNfcButton.success {
     background-color: #28a745;
     color: white;
     width: 160px;
 }
 
-#writeNfcButton.error {
+#writeNfcButton.error, #writeLocationNfcButton.error {
     background-color: #dc3545;
     color: white;
     width: 160px;
 }
 
+#writeLocationNfcButton{
+    width: 250px;
+}
+
 @keyframes dots {
     0% { content: ""; }
     33% { content: "."; }
@@ -1003,7 +1007,7 @@ input[type="submit"]:disabled,
     100% { content: "..."; }
 }
 
-#writeNfcButton.writing::after {
+#writeNfcButton.writing::after, #writeLocationNfcButton.writing::after {
     content: "...";
     animation: dots 1s steps(3, end) infinite;
 }

platformio.ini

@@ -9,7 +9,7 @@
 ; https://docs.platformio.org/page/projectconf.html
 
 [common]
-version = "1.5.3"
+version = "1.5.6"
 to_old_version = "1.5.0"
 
 ##
@@ -18,6 +18,7 @@ platform = espressif32
 board = esp32dev
 framework = arduino
 monitor_speed = 115200
+#monitor_port = /dev/cu.usbmodem01
 
 lib_deps =
     tzapu/WiFiManager @ ^2.0.17
@@ -51,6 +52,7 @@ build_flags =
     -mtext-section-literals
     -DVERSION=\"${common.version}\"
     -DTOOLDVERSION=\"${common.to_old_version}\"
+    #-DENABLE_HEAP_DEBUGGING
     -DASYNCWEBSERVER_REGEX
     #-DCORE_DEBUG_LEVEL=3
     -DCONFIG_ARDUHAL_LOG_COLORS=1

src/api.cpp

@@ -2,6 +2,8 @@
 #include <HTTPClient.h>
 #include <ArduinoJson.h>
 #include "commonFS.h"
+#include <Preferences.h>
+#include "debug.h"
 
 volatile spoolmanApiStateType spoolmanApiState = API_INIT;
 //bool spoolman_connected = false;
@@ -11,6 +13,7 @@ String octoUrl = "";
 String octoToken = "";
 
 struct SendToApiParams {
+    SpoolmanApiRequestType requestType;
     String httpType;
     String spoolsUrl;
     String updatePayload;
@@ -86,10 +89,13 @@ JsonDocument fetchSingleSpoolInfo(int spoolId) {
 }
 
 void sendToApi(void *parameter) {
+    HEAP_DEBUG_MESSAGE("sendToApi begin");
+
     spoolmanApiState = API_TRANSMITTING;
     SendToApiParams* params = (SendToApiParams*)parameter;
 
     // Extrahiere die Werte
+    SpoolmanApiRequestType requestType = params->requestType;
     String httpType = params->httpType;
     String spoolsUrl = params->spoolsUrl;
     String updatePayload = params->updatePayload;
@@ -118,16 +124,19 @@ void sendToApi(void *parameter) {
             Serial.print("Fehler beim Parsen der JSON-Antwort: ");
             Serial.println(error.c_str());
         } else {
-            if (httpType == "PUT") {
+            if (requestType == API_REQUEST_SPOOL_WEIGHT_UPDATE) {
                 uint16_t remaining_weight = doc["remaining_weight"].as<float>();
                 Serial.print("Aktuelles Gewicht: ");
                 Serial.println(remaining_weight);
                 oledShowMessage("Remaining: " + String(remaining_weight) + "g");
             }
+            else if ( requestType == API_REQUEST_SPOOL_LOCATION_UPDATE) {
+                oledShowMessage("Location updated!");
+            }
             
             vTaskDelay(3000 / portTICK_PERIOD_MS);
-            doc.clear();
         }
+        doc.clear();
 
     } else {
         Serial.println("Fehler beim Senden an Spoolman! HTTP Code: " + String(httpCode));
@@ -140,8 +149,9 @@ void sendToApi(void *parameter) {
 
     // Speicher freigeben
     delete params;
-    vTaskDelete(NULL);
+    HEAP_DEBUG_MESSAGE("sendToApi end");
     spoolmanApiState = API_IDLE;
+    vTaskDelete(NULL);
 }
 
 bool updateSpoolTagId(String uidString, const char* payload) {
@@ -164,6 +174,8 @@ bool updateSpoolTagId(String uidString, const char* payload) {
     Serial.print("Update Spule mit URL: ");
     Serial.println(spoolsUrl);
     
+    doc.clear();
+
     // Update Payload erstellen
     JsonDocument updateDoc;
     updateDoc["extra"]["nfc_id"] = "\""+uidString+"\"";
@@ -178,6 +190,7 @@ bool updateSpoolTagId(String uidString, const char* payload) {
         Serial.println("Fehler: Kann Speicher für Task-Parameter nicht allokieren.");
         return false;
     }
+    params->requestType = API_REQUEST_SPOOL_TAG_ID_UPDATE;
     params->httpType = "PATCH";
     params->spoolsUrl = spoolsUrl;
     params->updatePayload = updatePayload;
@@ -201,6 +214,7 @@ bool updateSpoolTagId(String uidString, const char* payload) {
 }
 
 uint8_t updateSpoolWeight(String spoolId, uint16_t weight) {
+    HEAP_DEBUG_MESSAGE("updateSpoolWeight begin");
     String spoolsUrl = spoolmanUrl + apiUrl + "/spool/" + spoolId + "/measure";
     Serial.print("Update Spule mit URL: ");
     Serial.println(spoolsUrl);
@@ -219,6 +233,7 @@ uint8_t updateSpoolWeight(String spoolId, uint16_t weight) {
         Serial.println("Fehler: Kann Speicher für Task-Parameter nicht allokieren.");
         return 0;
     }
+    params->requestType = API_REQUEST_SPOOL_WEIGHT_UPDATE;
     params->httpType = "PUT";
     params->spoolsUrl = spoolsUrl;
     params->updatePayload = updatePayload;
@@ -234,10 +249,53 @@ uint8_t updateSpoolWeight(String spoolId, uint16_t weight) {
     );
 
     updateDoc.clear();
+    HEAP_DEBUG_MESSAGE("updateSpoolWeight end");
 
     return 1;
 }
 
+uint8_t updateSpoolLocation(String spoolId, String location){
+    HEAP_DEBUG_MESSAGE("updateSpoolLocation begin");
+
+    String spoolsUrl = spoolmanUrl + apiUrl + "/spool/" + spoolId;
+    Serial.print("Update Spule mit URL: ");
+    Serial.println(spoolsUrl);
+
+    // Update Payload erstellen
+    JsonDocument updateDoc;
+    updateDoc["location"] = location;
+    
+    String updatePayload;
+    serializeJson(updateDoc, updatePayload);
+    Serial.print("Update Payload: ");
+    Serial.println(updatePayload);
+
+    SendToApiParams* params = new SendToApiParams();
+    if (params == nullptr) {
+        Serial.println("Fehler: Kann Speicher für Task-Parameter nicht allokieren.");
+        return 0;
+    }
+    params->requestType = API_REQUEST_SPOOL_LOCATION_UPDATE;
+    params->httpType = "PATCH";
+    params->spoolsUrl = spoolsUrl;
+    params->updatePayload = updatePayload;
+
+    // Erstelle die Task
+    BaseType_t result = xTaskCreate(
+        sendToApi,                // Task-Funktion
+        "SendToApiTask",          // Task-Name
+        6144,                     // Stackgröße in Bytes
+        (void*)params,            // Parameter
+        0,                        // Priorität
+        NULL                      // Task-Handle (nicht benötigt)
+    );
+
+    updateDoc.clear();
+
+    HEAP_DEBUG_MESSAGE("updateSpoolLocation end");
+    return 1;
+}
+
 bool updateSpoolOcto(int spoolId) {
     String spoolsUrl = octoUrl + "/plugin/Spoolman/selectSpool";
     Serial.print("Update Spule in Octoprint mit URL: ");
@@ -257,6 +315,7 @@ bool updateSpoolOcto(int spoolId) {
         Serial.println("Fehler: Kann Speicher für Task-Parameter nicht allokieren.");
         return false;
     }
+    params->requestType = API_REQUEST_OCTO_SPOOL_UPDATE;
     params->httpType = "POST";
     params->spoolsUrl = spoolsUrl;
     params->updatePayload = updatePayload;
@@ -298,6 +357,10 @@ bool updateSpoolBambuData(String payload) {
 
     String updatePayload;
     serializeJson(updateDoc, updatePayload);
+
+    doc.clear();
+    updateDoc.clear();
+
     Serial.print("Update Payload: ");
     Serial.println(updatePayload);
 
@@ -306,6 +369,7 @@ bool updateSpoolBambuData(String payload) {
         Serial.println("Fehler: Kann Speicher für Task-Parameter nicht allokieren.");
         return false;
     }
+    params->requestType = API_REQUEST_BAMBU_UPDATE;
     params->httpType = "PATCH";
     params->spoolsUrl = spoolsUrl;
     params->updatePayload = updatePayload;
@@ -463,6 +527,7 @@ bool checkSpoolmanExtraFields() {
                     vTaskDelay(100 / portTICK_PERIOD_MS);
                 }
             }
+            doc.clear();
         }
     }
     
@@ -509,48 +574,48 @@ bool checkSpoolmanInstance(const String& url) {
                 oledShowTopRow();
                 return strcmp(status, "healthy") == 0;
             }
+
+            doc.clear();
         }
+    } else {
+        Serial.println("Error contacting spoolman instance! HTTP Code: " + String(httpCode));
     }
     http.end();
     return false;
 }
 
-bool saveSpoolmanUrl(const String& url, bool octoOn, const String& octoWh, const String& octoTk) {
-    if (!checkSpoolmanInstance(url)) return false;
+bool saveSpoolmanUrl(const String& url, bool octoOn, const String& octo_url, const String& octoTk) {
+    Preferences preferences;
+    preferences.begin(NVS_NAMESPACE_API, false); // false = readwrite
+    preferences.putString(NVS_KEY_SPOOLMAN_URL, url);
+    preferences.putBool(NVS_KEY_OCTOPRINT_ENABLED, octoOn);
+    preferences.putString(NVS_KEY_OCTOPRINT_URL, octo_url);
+    preferences.putString(NVS_KEY_OCTOPRINT_TOKEN, octoTk);
+    preferences.end();
 
-    JsonDocument doc;
-    doc["url"] = url;
-    doc["octoEnabled"] = octoOn;
-    doc["octoUrl"] = octoWh;
-    doc["octoToken"] = octoTk;
-    Serial.print("Speichere Spoolman Data in Datei: ");
-    Serial.println(doc.as<String>());
-    if (!saveJsonValue("/spoolman_url.json", doc)) {
-        Serial.println("Fehler beim Speichern der Spoolman-URL.");
-        return false;
-    }
+    //TBD: This could be handled nicer in the future
     spoolmanUrl = url;
     octoEnabled = octoOn;
-    octoUrl = octoWh;
+    octoUrl = octo_url;
     octoToken = octoTk;
 
+    doc.clear();
+
     return true;
 }
 
 String loadSpoolmanUrl() {
-    JsonDocument doc;
-    if (loadJsonValue("/spoolman_url.json", doc) && doc["url"].is<String>()) {
-        octoEnabled = (doc["octoEnabled"].is<bool>()) ? doc["octoEnabled"].as<bool>() : false;
-        if (octoEnabled && doc["octoToken"].is<String>() && doc["octoUrl"].is<String>())
-        {
-            octoUrl = doc["octoUrl"].as<String>();
-            octoToken = doc["octoToken"].as<String>();
-        }
-
-        return doc["url"].as<String>();
+    Preferences preferences;
+    preferences.begin(NVS_NAMESPACE_API, true);
+    String spoolmanUrl = preferences.getString(NVS_KEY_SPOOLMAN_URL, "");
+    octoEnabled = preferences.getBool(NVS_KEY_OCTOPRINT_ENABLED, false);
+    if(octoEnabled)
+    {
+        octoUrl = preferences.getString(NVS_KEY_OCTOPRINT_URL, "");
+        octoToken = preferences.getString(NVS_KEY_OCTOPRINT_TOKEN, "");
     }
-    Serial.println("Keine gültige Spoolman-URL gefunden.");
-    return "";
+    preferences.end();
+    return spoolmanUrl;
 }
 
 bool initSpoolman() {

src/api.h

@@ -12,6 +12,14 @@ typedef enum {
     API_TRANSMITTING
 } spoolmanApiStateType;
 
+typedef enum {
+    API_REQUEST_OCTO_SPOOL_UPDATE,
+    API_REQUEST_BAMBU_UPDATE,
+    API_REQUEST_SPOOL_TAG_ID_UPDATE,
+    API_REQUEST_SPOOL_WEIGHT_UPDATE,
+    API_REQUEST_SPOOL_LOCATION_UPDATE
+} SpoolmanApiRequestType;
+
 extern volatile spoolmanApiStateType spoolmanApiState;
 extern bool spoolman_connected;
 extern String spoolmanUrl;
@@ -26,6 +34,7 @@ bool checkSpoolmanExtraFields(); // Neue Funktion zum Überprüfen der Extrafeld
 JsonDocument fetchSingleSpoolInfo(int spoolId); // API-Funktion für die Webseite
 bool updateSpoolTagId(String uidString, const char* payload); // Neue Funktion zum Aktualisieren eines Spools
 uint8_t updateSpoolWeight(String spoolId, uint16_t weight); // Neue Funktion zum Aktualisieren des Gewichts
+uint8_t updateSpoolLocation(String spoolId, String location);
 bool initSpoolman(); // Neue Funktion zum Initialisieren von Spoolman
 bool updateSpoolBambuData(String payload); // Neue Funktion zum Aktualisieren der Bambu-Daten
 bool updateSpoolOcto(int spoolId); // Neue Funktion zum Aktualisieren der Octo-Daten

src/bambu.cpp

@@ -10,6 +10,7 @@
 #include "esp_task_wdt.h"
 #include "config.h"
 #include "display.h"
+#include <Preferences.h>
 
 WiFiClient espClient;
 SSLClient sslClient(&espClient);
@@ -17,22 +18,13 @@ PubSubClient client(sslClient);
 
 TaskHandle_t BambuMqttTask;
 
-String topic = "";
-//String request_topic = "";
-const char* bambu_username = "bblp";
-const char* bambu_ip = nullptr;
-const char* bambu_accesscode = nullptr;
-const char* bambu_serialnr = nullptr;
-
-String g_bambu_ip = "";
-String g_bambu_accesscode = "";
-String g_bambu_serialnr = "";
 bool bambuDisabled = false;
 
 bool bambu_connected = false;
-bool autoSendToBambu = false;
 int autoSetToBambuSpoolId = 0;
 
+BambuCredentials bambuCredentials;
+
 // Globale Variablen für AMS-Daten
 int ams_count = 0;
 String amsJsonData;  // Speichert das fertige JSON für WebSocket-Clients
@@ -43,18 +35,22 @@ bool removeBambuCredentials() {
         vTaskDelete(BambuMqttTask);
     }
     
-    if (!removeJsonValue("/bambu_credentials.json")) {
-        Serial.println("Fehler beim Löschen der Bambu-Credentials.");
-        return false;
-    }
+    Preferences preferences;
+    preferences.begin(NVS_NAMESPACE_BAMBU, false); // false = readwrite
+    preferences.remove(NVS_KEY_BAMBU_IP);
+    preferences.remove(NVS_KEY_BAMBU_SERIAL);
+    preferences.remove(NVS_KEY_BAMBU_ACCESSCODE);
+    preferences.remove(NVS_KEY_BAMBU_AUTOSEND_ENABLE);
+    preferences.remove(NVS_KEY_BAMBU_AUTOSEND_TIME);
+    preferences.end();
+
     // Löschen der globalen Variablen
-    g_bambu_ip = "";
-    g_bambu_accesscode = "";
-    g_bambu_serialnr = "";
-    bambu_ip = nullptr;
-    bambu_accesscode = nullptr;
-    bambu_serialnr = nullptr;
-    autoSendToBambu = false;
+    bambuCredentials.ip = "";
+    bambuCredentials.serial = "";
+    bambuCredentials.accesscode = "";
+    bambuCredentials.autosend_enable = false;
+    bambuCredentials.autosend_time = BAMBU_DEFAULT_AUTOSEND_TIME;
+
     autoSetToBambuSpoolId = 0;
     ams_count = 0;
     amsJsonData = "";
@@ -68,25 +64,21 @@ bool saveBambuCredentials(const String& ip, const String& serialnr, const String
     if (BambuMqttTask) {
         vTaskDelete(BambuMqttTask);
     }
-    
-    JsonDocument doc;
-    doc["bambu_ip"] = ip;
-    doc["bambu_accesscode"] = accesscode;
-    doc["bambu_serialnr"] = serialnr;
-    doc["autoSendToBambu"] = autoSend;
-    doc["autoSendTime"] = (autoSendTime != "") ? autoSendTime.toInt() : autoSetBambuAmsCounter;
 
-    if (!saveJsonValue("/bambu_credentials.json", doc)) {
-        Serial.println("Fehler beim Speichern der Bambu-Credentials.");
-        return false;
-    }
+    bambuCredentials.ip = ip.c_str();
+    bambuCredentials.serial = serialnr.c_str();
+    bambuCredentials.accesscode = accesscode.c_str();
+    bambuCredentials.autosend_enable = autoSend;
+    bambuCredentials.autosend_time = autoSendTime.toInt();
 
-    // Dynamische Speicherallokation für die globalen Pointer
-    bambu_ip = ip.c_str();
-    bambu_accesscode = accesscode.c_str();
-    bambu_serialnr = serialnr.c_str();
-    autoSendToBambu = autoSend;
-    autoSetBambuAmsCounter = autoSendTime.toInt();
+    Preferences preferences;
+    preferences.begin(NVS_NAMESPACE_BAMBU, false); // false = readwrite
+    preferences.putString(NVS_KEY_BAMBU_IP, bambuCredentials.ip);
+    preferences.putString(NVS_KEY_BAMBU_SERIAL, bambuCredentials.serial);
+    preferences.putString(NVS_KEY_BAMBU_ACCESSCODE, bambuCredentials.accesscode);
+    preferences.putBool(NVS_KEY_BAMBU_AUTOSEND_ENABLE, bambuCredentials.autosend_enable);
+    preferences.putInt(NVS_KEY_BAMBU_AUTOSEND_TIME, bambuCredentials.autosend_time);
+    preferences.end();
 
     vTaskDelay(100 / portTICK_PERIOD_MS);
     if (!setupMqtt()) return false;
@@ -95,35 +87,36 @@ bool saveBambuCredentials(const String& ip, const String& serialnr, const String
 }
 
 bool loadBambuCredentials() {
-    JsonDocument doc;
-    if (loadJsonValue("/bambu_credentials.json", doc) && doc["bambu_ip"].is<String>()) {
-        // Temporäre Strings für die Werte
-        String ip = doc["bambu_ip"].as<String>();
-        String code = doc["bambu_accesscode"].as<String>();
-        String serial = doc["bambu_serialnr"].as<String>();
+    Preferences preferences;
+    preferences.begin(NVS_NAMESPACE_BAMBU, true);
+    String ip = preferences.getString(NVS_KEY_BAMBU_IP, "");
+    String serial = preferences.getString(NVS_KEY_BAMBU_SERIAL, "");
+    String code = preferences.getString(NVS_KEY_BAMBU_ACCESSCODE, "");
+    bool autosendEnable = preferences.getBool(NVS_KEY_BAMBU_AUTOSEND_ENABLE, false);
+    int autosendTime = preferences.getInt(NVS_KEY_BAMBU_AUTOSEND_TIME, BAMBU_DEFAULT_AUTOSEND_TIME);
+    preferences.end();
 
-        g_bambu_ip = ip;
-        g_bambu_accesscode = code;
-        g_bambu_serialnr = serial;
+    if(ip != ""){
+        bambuCredentials.ip = ip.c_str();
+        bambuCredentials.serial = serial.c_str();
+        bambuCredentials.accesscode = code.c_str();
+        bambuCredentials.autosend_enable = autosendEnable;
+        bambuCredentials.autosend_time = autosendTime;
 
-        if (doc["autoSendToBambu"].is<bool>()) autoSendToBambu = doc["autoSendToBambu"].as<bool>();
-        if (doc["autoSendTime"].is<int>()) autoSetBambuAmsCounter = doc["autoSendTime"].as<int>();
+        Serial.println("credentials loaded loadCredentials!");
+        Serial.println(bambuCredentials.ip);
+        Serial.println(bambuCredentials.serial);
+        Serial.println(bambuCredentials.accesscode);
+        Serial.println(String(bambuCredentials.autosend_enable));
+        Serial.println(String(bambuCredentials.autosend_time));
 
-        ip.trim();
-        code.trim();
-        serial.trim();
-
-        // Dynamische Speicherallokation für die globalen Pointer
-        bambu_ip = g_bambu_ip.c_str();
-        bambu_accesscode = g_bambu_accesscode.c_str();
-        bambu_serialnr = g_bambu_serialnr.c_str();
-
-        topic = "device/" + String(bambu_serialnr);
-        //request_topic = "device/" + String(bambu_serialnr) + "/request";
         return true;
     }
-    Serial.println("Keine gültigen Bambu-Credentials gefunden.");
-    return false;
+    else
+    {
+        Serial.println("Keine gültigen Bambu-Credentials gefunden.");
+        return false;
+    }
 }
 
 struct FilamentResult {
@@ -226,7 +219,7 @@ FilamentResult findFilamentIdx(String brand, String type) {
 bool sendMqttMessage(const String& payload) {
     Serial.println("Sending MQTT message");
     Serial.println(payload);
-    if (client.publish((String(topic) + "/request").c_str(), payload.c_str())) 
+    if (client.publish(("device/"+bambuCredentials.serial+"/request").c_str(), payload.c_str())) 
     {
         return true;
     }
@@ -499,7 +492,7 @@ void mqtt_callback(char* topic, byte* payload, unsigned int length) {
                     trayObj["cali_idx"].as<String>() != ams_data[storedIndex].trays[j].cali_idx) {
                     hasChanges = true;
 
-                    if (autoSendToBambu && autoSetToBambuSpoolId > 0 && hasChanges)
+                    if (bambuCredentials.autosend_enable && autoSetToBambuSpoolId > 0 && hasChanges)
                     {
                         autoSetSpool(autoSetToBambuSpoolId, ams_data[storedIndex].trays[j].id);
                     }
@@ -523,7 +516,7 @@ void mqtt_callback(char* topic, byte* payload, unsigned int length) {
                         (vtTray["tray_type"].as<String>() != "" && vtTray["cali_idx"].as<String>() != ams_data[i].trays[0].cali_idx)) {
                         hasChanges = true;
 
-                        if (autoSendToBambu && autoSetToBambuSpoolId > 0 && hasChanges)
+                        if (bambuCredentials.autosend_enable && autoSetToBambuSpoolId > 0 && hasChanges)
                         {
                             autoSetSpool(autoSetToBambuSpoolId, 254);
                         }
@@ -580,11 +573,11 @@ void reconnect() {
         oledShowTopRow();
 
         // Attempt to connect
-        String clientId = String(bambu_serialnr) + "_" + String(random(0, 100));
-        if (client.connect(clientId.c_str(), bambu_username, bambu_accesscode)) {
+        String clientId = bambuCredentials.serial + "_" + String(random(0, 100));
+        if (client.connect(clientId.c_str(), BAMBU_USERNAME, bambuCredentials.accesscode.c_str())) {
             Serial.println("MQTT re/connected");
 
-            client.subscribe((String(topic) + "/report").c_str());
+            client.subscribe(("device/"+bambuCredentials.serial+"/report").c_str());
             bambu_connected = true;
             oledShowTopRow();
         } else {
@@ -630,28 +623,23 @@ void mqtt_loop(void * parameter) {
 
 bool setupMqtt() {
     // Wenn Bambu Daten vorhanden
-    bool success = loadBambuCredentials();
+    //bool success = loadBambuCredentials();
 
-    if (!success) {
-        bambuDisabled = true;
-        return false;
-    }
-
-    if (success && bambu_ip != "" && bambu_accesscode != "" && bambu_serialnr != "") 
+    if (bambuCredentials.ip != "" && bambuCredentials.accesscode != "" && bambuCredentials.serial != "") 
     {
         bambuDisabled = false;
         sslClient.setCACert(root_ca);
         sslClient.setInsecure();
-        client.setServer(bambu_ip, 8883);
+        client.setServer(bambuCredentials.ip.c_str(), 8883);
 
         // Verbinden mit dem MQTT-Server
         bool connected = true;
-        String clientId = String(bambu_serialnr) + "_" + String(random(0, 100));
-        if (client.connect(clientId.c_str(), bambu_username, bambu_accesscode)) 
+        String clientId = String(bambuCredentials.serial) + "_" + String(random(0, 100));
+        if (client.connect(bambuCredentials.ip.c_str(), BAMBU_USERNAME, bambuCredentials.accesscode.c_str())) 
         {
             client.setCallback(mqtt_callback);
             client.setBufferSize(15488);
-            client.subscribe((String(topic) + "/report").c_str());
+            client.subscribe(("device/"+bambuCredentials.serial+"/report").c_str());
             Serial.println("MQTT-Client initialisiert");
 
             oledShowMessage("Bambu Connected");

src/bambu.h

@@ -16,6 +16,14 @@ struct TrayData {
     String cali_idx;
 };
 
+struct BambuCredentials {
+    String ip;
+    String serial;
+    String accesscode;
+    bool autosend_enable;
+    int autosend_time;
+};
+
 #define MAX_AMS 17  // 16 normale AMS + 1 externe Spule
 extern String amsJsonData;  // Für die vorbereiteten JSON-Daten
 
@@ -28,9 +36,10 @@ extern bool bambu_connected;
 
 extern int ams_count;
 extern AMSData ams_data[MAX_AMS];
-extern bool autoSendToBambu;
+//extern bool autoSendToBambu;
 extern int autoSetToBambuSpoolId;
 extern bool bambuDisabled;
+extern BambuCredentials bambuCredentials;
 
 bool removeBambuCredentials();
 bool loadBambuCredentials();

src/config.cpp

@@ -46,8 +46,6 @@ const uint8_t webserverPort = 80;
 const char* apiUrl = "/api/v1";
 // ***** API
 
-// ***** Bambu Auto Set Spool
-uint8_t autoSetBambuAmsCounter = 60;
 // ***** Bambu Auto Set Spool
 
 // ***** Task Prios

src/config.h

@@ -3,6 +3,29 @@
 
 #include <Arduino.h>
 
+#define BAMBU_DEFAULT_AUTOSEND_TIME 60
+
+
+#define NVS_NAMESPACE_API "api"
+#define NVS_KEY_SPOOLMAN_URL "spoolmanUrl"
+#define NVS_KEY_OCTOPRINT_ENABLED "octoEnabled"
+#define NVS_KEY_OCTOPRINT_URL "octoUrl"
+#define NVS_KEY_OCTOPRINT_TOKEN "octoToken"
+
+#define NVS_NAMESPACE_BAMBU "bambu"
+#define NVS_KEY_BAMBU_IP "bambuIp"
+#define NVS_KEY_BAMBU_ACCESSCODE "bambuCode"
+#define NVS_KEY_BAMBU_SERIAL "bambuSerial"
+#define NVS_KEY_BAMBU_AUTOSEND_ENABLE "autosendEnable"
+#define NVS_KEY_BAMBU_AUTOSEND_TIME "autosendTime"
+
+#define NVS_NAMESPACE_SCALE "scale"
+#define NVS_KEY_CALIBRATION "cal_value"
+#define NVS_KEY_AUTOTARE "auto_tare"
+
+#define BAMBU_USERNAME "bblp"
+
+
 extern const uint8_t PN532_IRQ;
 extern const uint8_t PN532_RESET;
 
@@ -25,7 +48,7 @@ extern const uint8_t OLED_DATA_END;
 extern const char* apiUrl;
 extern const uint8_t webserverPort;
 
-extern uint8_t autoSetBambuAmsCounter;
+
 
 extern const unsigned char wifi_on[];
 extern const unsigned char wifi_off[];

src/debug.h

@@ -0,0 +1,12 @@
+#include <Arduino.h>
+
+
+#ifdef ENABLE_HEAP_DEBUGGING
+    #define HEAP_DEBUG_MESSAGE(location) printHeapDebugData(location);
+#else
+    #define HEAP_DEBUG_MESSAGE(location) 
+#endif
+
+inline void printHeapDebugData(String location){
+    Serial.println("Heap: " + String(ESP.getMinFreeHeap()/1024) + "\t" + String(ESP.getFreeHeap()/1024) + "\t" + String(ESP.getMaxAllocHeap()/1024) + "\t" + location);
+}

src/main.cpp

@@ -119,7 +119,7 @@ void loop() {
   }
 
   // Wenn Bambu auto set Spool aktiv
-  if (autoSendToBambu && autoSetToBambuSpoolId > 0) 
+  if (bambuCredentials.autosend_enable && autoSetToBambuSpoolId > 0) 
   {
     if (!bambuDisabled && !bambu_connected) 
     {
@@ -131,10 +131,10 @@ void loop() {
       if (nfcReaderState == NFC_IDLE)
       {
         lastAutoSetBambuAmsTime = currentMillis;
-        oledShowMessage("Auto Set         " + String(autoSetBambuAmsCounter - autoAmsCounter) + "s");
+        oledShowMessage("Auto Set         " + String(bambuCredentials.autosend_time - autoAmsCounter) + "s");
         autoAmsCounter++;
 
-        if (autoAmsCounter >= autoSetBambuAmsCounter) 
+        if (autoAmsCounter >= bambuCredentials.autosend_time) 
         {
           autoSetToBambuSpoolId = 0;
           autoAmsCounter = 0;
@@ -162,7 +162,7 @@ void loop() {
   // Ausgabe der Waage auf Display
   if(pauseMainTask == 0)
   {
-    if (mainTaskWasPaused || (weight != lastWeight && nfcReaderState == NFC_IDLE && (!autoSendToBambu || autoSetToBambuSpoolId == 0)))
+    if (mainTaskWasPaused || (weight != lastWeight && nfcReaderState == NFC_IDLE && (!bambuCredentials.autosend_enable || autoSetToBambuSpoolId == 0)))
     {
       (weight < 2) ? ((weight < -2) ? oledShowMessage("!! -0") : oledShowWeight(0)) : oledShowWeight(weight);
     }
@@ -212,14 +212,14 @@ void loop() {
   lastWeight = weight;
 
   // Wenn ein Tag mit SM id erkannte wurde und der Waage Counter anspricht an SM Senden
-  if (spoolId != "" && weigthCouterToApi > 3 && weightSend == 0 && nfcReaderState == NFC_READ_SUCCESS) {
+  if (activeSpoolId != "" && weigthCouterToApi > 3 && weightSend == 0 && nfcReaderState == NFC_READ_SUCCESS) {
     oledShowIcon("loading");
-    if (updateSpoolWeight(spoolId, weight)) 
+    if (updateSpoolWeight(activeSpoolId, weight)) 
     {
       oledShowIcon("success");
       vTaskDelay(2000 / portTICK_PERIOD_MS);
       weightSend = 1;
-      autoSetToBambuSpoolId = spoolId.toInt();
+      autoSetToBambuSpoolId = activeSpoolId.toInt();
 
       if (octoEnabled) 
       {

src/nfc.cpp

@@ -7,6 +7,7 @@
 #include "api.h"
 #include "esp_task_wdt.h"
 #include "scale.h"
+#include "bambu.h"
 
 //Adafruit_PN532 nfc(PN532_SCK, PN532_MISO, PN532_MOSI, PN532_SS);
 Adafruit_PN532 nfc(PN532_IRQ, PN532_RESET);
@@ -14,7 +15,8 @@ Adafruit_PN532 nfc(PN532_IRQ, PN532_RESET);
 TaskHandle_t RfidReaderTask;
 
 JsonDocument rfidData;
-String spoolId = "";
+String activeSpoolId = "";
+String lastSpoolId = "";
 String nfcJsonData = "";
 volatile bool pauseBambuMqttTask = false;
 
@@ -64,6 +66,8 @@ void payloadToJson(uint8_t *data) {
         Serial.print("deserializeJson() failed: ");
         Serial.println(error.f_str());
       }
+
+      doc.clear();
     } else {
         Serial.println("Kein gültiger JSON-Inhalt gefunden oder fehlerhafte Formatierung.");
         //writeJsonToTag("{\"version\":\"1.0\",\"protocol\":\"NFC\",\"color_hex\":\"#FFFFFF\",\"type\":\"Example\",\"min_temp\":10,\"max_temp\":30,\"brand\":\"BrandName\"}");
@@ -218,20 +222,37 @@ bool decodeNdefAndReturnJson(const byte* encodedMessage) {
     // Sende die aktualisierten AMS-Daten an alle WebSocket-Clients
     Serial.println("JSON-Dokument erfolgreich verarbeitet");
     Serial.println(doc.as<String>());
-    if (doc["sm_id"] != "") 
+    if (doc["sm_id"].is<String>() && doc["sm_id"] != "") 
     {
       Serial.println("SPOOL-ID gefunden: " + doc["sm_id"].as<String>());
-      spoolId = doc["sm_id"].as<String>();
-    } 
+      activeSpoolId = doc["sm_id"].as<String>();
+      lastSpoolId = activeSpoolId;
+    }
+    else if(doc["location"].is<String>() && doc["location"] != "")
+    {
+      Serial.println("Location Tag found!");
+      String location = doc["location"].as<String>();
+      if(lastSpoolId != ""){
+        updateSpoolLocation(lastSpoolId, location);
+      }
+      else
+      {
+        Serial.println("Location update tag scanned without scanning spool before!");
+        oledShowMessage("No spool scanned before!");
+      }
+
+    }
     else 
     {
       Serial.println("Keine SPOOL-ID gefunden.");
-      spoolId = "";
+      activeSpoolId = "";
       oledShowMessage("Unknown Spool");
       vTaskDelay(2000 / portTICK_PERIOD_MS);
     }
   }
 
+  doc.clear();
+
   return true;
 }
 
@@ -432,8 +453,9 @@ void scanRfidTask(void * parameter) {
         nfcReaderState = NFC_IDLE;
         //uidString = "";
         nfcJsonData = "";
+        activeSpoolId = "";
         Serial.println("Tag entfernt");
-        if (!autoSendToBambu) oledShowWeight(weight);
+        if (!bambuCredentials.autosend_enable) oledShowWeight(weight);
       }
 
       // aktualisieren der Website wenn sich der Status ändert

src/nfc.h

@@ -19,7 +19,8 @@ void startWriteJsonToTag(const char* payload);
 
 extern TaskHandle_t RfidReaderTask;
 extern String nfcJsonData;
-extern String spoolId;
+extern String activeSpoolId;
+extern String lastSpoolId;
 extern volatile nfcReaderStateType nfcReaderState;
 extern volatile bool pauseBambuMqttTask;
 

src/scale.cpp

@@ -18,11 +18,6 @@ uint8_t scale_tare_counter = 0;
 bool scaleTareRequest = false;
 uint8_t pauseMainTask = 0;
 uint8_t scaleCalibrated = 1;
-
-Preferences preferences;
-const char* NVS_NAMESPACE = "scale";
-const char* NVS_KEY_CALIBRATION = "cal_value";
-const char* NVS_KEY_AUTOTARE = "auto_tare";
 bool autoTare = true;
 
 // ##### Funktionen für Waage #####
@@ -32,7 +27,8 @@ uint8_t setAutoTare(bool autoTareValue) {
   autoTare = autoTareValue;
 
   // Speichern mit NVS
-  preferences.begin(NVS_NAMESPACE, false); // false = readwrite
+  Preferences preferences;
+  preferences.begin(NVS_NAMESPACE_SCALE, false); // false = readwrite
   preferences.putBool(NVS_KEY_AUTOTARE, autoTare);
   preferences.end();
 
@@ -74,7 +70,11 @@ void scale_loop(void * parameter) {
         scaleTareRequest = false;
       }
 
-      weight = round(scale.get_units());
+      // Only update weight if median changed more than 1
+      int16_t newWeight = round(scale.get_units());
+      if(abs(weight-newWeight) > 1){
+        weight = newWeight;
+      }
     }
     
     vTaskDelay(pdMS_TO_TICKS(100));
@@ -86,7 +86,8 @@ void start_scale(bool touchSensorConnected) {
   float calibrationValue;
 
   // NVS lesen
-  preferences.begin(NVS_NAMESPACE, true); // true = readonly
+  Preferences preferences;
+  preferences.begin(NVS_NAMESPACE_SCALE, true); // true = readonly
   calibrationValue = preferences.getFloat(NVS_KEY_CALIBRATION, defaultScaleCalibrationValue);
   
   // auto Tare
@@ -193,12 +194,13 @@ uint8_t calibrate_scale() {
       Serial.println(newCalibrationValue);
 
       // Speichern mit NVS
-      preferences.begin(NVS_NAMESPACE, false); // false = readwrite
+      Preferences preferences;
+      preferences.begin(NVS_NAMESPACE_SCALE, false); // false = readwrite
       preferences.putFloat(NVS_KEY_CALIBRATION, newCalibrationValue);
       preferences.end();
 
       // Verifizieren
-      preferences.begin(NVS_NAMESPACE, true);
+      preferences.begin(NVS_NAMESPACE_SCALE, true);
       float verifyValue = preferences.getFloat(NVS_KEY_CALIBRATION, 0);
       preferences.end();
 

src/website.cpp

@@ -10,6 +10,9 @@
 #include <Update.h>
 #include "display.h"
 #include "ota.h"
+#include "config.h"
+#include "debug.h"
+
 
 #ifndef VERSION
   #define VERSION "1.1.0"
@@ -26,6 +29,7 @@ nfcReaderStateType lastnfcReaderState = NFC_IDLE;
 
 
 void onWsEvent(AsyncWebSocket *server, AsyncWebSocketClient *client, AwsEventType type, void *arg, uint8_t *data, size_t len) {
+    HEAP_DEBUG_MESSAGE("onWsEvent begin");
     if (type == WS_EVT_CONNECT) {
         Serial.println("Neuer Client verbunden!");
         // Sende die AMS-Daten an den neuen Client
@@ -33,6 +37,10 @@ void onWsEvent(AsyncWebSocket *server, AsyncWebSocketClient *client, AwsEventTyp
         sendNfcData(client);
         foundNfcTag(client, 0);
         sendWriteResult(client, 3);
+
+        // Clean up dead connections
+        (*server).cleanupClients();
+        Serial.println("Currently connected number of clients: " + String((*server).getClients().size()));
     } else if (type == WS_EVT_DISCONNECT) {
         Serial.println("Client getrennt.");
     } else if (type == WS_EVT_ERROR) {
@@ -113,7 +121,9 @@ void onWsEvent(AsyncWebSocket *server, AsyncWebSocketClient *client, AwsEventTyp
         else {
             Serial.println("Unbekannter WebSocket-Typ: " + doc["type"].as<String>());
         }
+        doc.clear();
     }
+    HEAP_DEBUG_MESSAGE("onWsEvent end");
 }
 
 // Funktion zum Laden und Ersetzen des Headers in einer HTML-Datei
@@ -195,6 +205,9 @@ void setupWebserver(AsyncWebServer &server) {
     Serial.print("Geladene Spoolman-URL: ");
     Serial.println(spoolmanUrl);
 
+    // Load Bamb credentials:
+    loadBambuCredentials();
+
     // Route für about
     server.on("/about", HTTP_GET, [](AsyncWebServerRequest *request){
         Serial.println("Anfrage für /about erhalten");
@@ -254,31 +267,13 @@ void setupWebserver(AsyncWebServer &server) {
         html.replace("{{spoolmanOctoUrl}}", (octoUrl != "") ? octoUrl : "");
         html.replace("{{spoolmanOctoToken}}", (octoToken != "") ? octoToken : "");
 
-        JsonDocument doc;
-        if (loadJsonValue("/bambu_credentials.json", doc) && doc["bambu_ip"].is<String>()) 
-        {
-            String bambuIp = doc["bambu_ip"].as<String>();
-            String bambuSerial = doc["bambu_serialnr"].as<String>();
-            String bambuCode = doc["bambu_accesscode"].as<String>();
-            autoSendToBambu = doc["autoSendToBambu"].as<bool>();
-            bambuIp.trim();
-            bambuSerial.trim();
-            bambuCode.trim();
+        html.replace("{{bambuIp}}", bambuCredentials.ip);            
+        html.replace("{{bambuSerial}}", bambuCredentials.serial);
+        html.replace("{{bambuCode}}", bambuCredentials.accesscode ? bambuCredentials.accesscode : "");
+        html.replace("{{autoSendToBambu}}", bambuCredentials.autosend_enable ? "checked" : "");
+        html.replace("{{autoSendTime}}", (bambuCredentials.autosend_time != 0) ? String(bambuCredentials.autosend_time) : String(BAMBU_DEFAULT_AUTOSEND_TIME));
 
-            html.replace("{{bambuIp}}", bambuIp ? bambuIp : "");            
-            html.replace("{{bambuSerial}}", bambuSerial ? bambuSerial : "");
-            html.replace("{{bambuCode}}", bambuCode ? bambuCode : "");
-            html.replace("{{autoSendToBambu}}", autoSendToBambu ? "checked" : "");
-            html.replace("{{autoSendTime}}", String(autoSetBambuAmsCounter));
-        }
-        else
-        {
-            html.replace("{{bambuIp}}", "");
-            html.replace("{{bambuSerial}}", "");
-            html.replace("{{bambuCode}}", "");
-            html.replace("{{autoSendToBambu}}", "");
-            html.replace("{{autoSendTime}}", String(autoSetBambuAmsCounter));
-        }
+        doc.clear();
 
         request->send(200, "text/html", html);
     });