refactor: migrate from SPIFFS to LittleFS for file handling

platformio.ini

@@ -33,7 +33,8 @@ lib_deps =
     digitaldragon/SSLClient @ ^1.3.2
     
 ; Enable SPIFFS upload
-board_build.filesystem = spiffs
+#board_build.filesystem = spiffs
+board_build.filesystem = littlefs
 ; Update partition settings
 board_build.partitions = partitions.csv
 board_upload.flash_size = 4MB
@@ -44,13 +45,13 @@ build_flags =
     -Os
     -ffunction-sections
     -fdata-sections
-    -DNDEBUG
+    #-DNDEBUG
     -mtext-section-literals
     -DVERSION=\"${common.version}\"
     -DASYNCWEBSERVER_REGEX
-    -DCORE_DEBUG_LEVEL=3
+    #-DCORE_DEBUG_LEVEL=3
     -DCONFIG_ARDUHAL_LOG_COLORS=1
-    -DOTA_DEBUG=1
+    #-DOTA_DEBUG=1
     -DCONFIG_OPTIMIZATION_LEVEL_DEBUG=1
     -DBOOT_APP_PARTITION_OTA_0=1
     -DCONFIG_LWIP_TCP_MSL=60000

src/commonFS.cpp

@@ -1,8 +1,8 @@
 #include "commonFS.h"
-#include <SPIFFS.h>
+#include <LittleFS.h>
 
 bool saveJsonValue(const char* filename, const JsonDocument& doc) {
-    File file = SPIFFS.open(filename, "w");
+    File file = LittleFS.open(filename, "w");
     if (!file) {
         Serial.print("Fehler beim Öffnen der Datei zum Schreiben: ");
         Serial.println(filename);
@@ -20,7 +20,7 @@ bool saveJsonValue(const char* filename, const JsonDocument& doc) {
 }
 
 bool loadJsonValue(const char* filename, JsonDocument& doc) {
-    File file = SPIFFS.open(filename, "r");
+    File file = LittleFS.open(filename, "r");
     if (!file) {
         Serial.print("Fehler beim Öffnen der Datei zum Lesen: ");
         Serial.println(filename);
@@ -36,12 +36,12 @@ bool loadJsonValue(const char* filename, JsonDocument& doc) {
     return true;
 }
 
-void initializeSPIFFS() {
+void initializeFileSystem() {
-    if (!SPIFFS.begin(true, "/spiffs", 10, "spiffs")) {
+    if (!LittleFS.begin(true)) {
-        Serial.println("SPIFFS Mount Failed");
+        Serial.println("LittleFS Mount Failed");
         return;
     }
-    Serial.printf("SPIFFS Total: %u bytes\n", SPIFFS.totalBytes());
+    Serial.printf("LittleFS Total: %u bytes\n", LittleFS.totalBytes());
-    Serial.printf("SPIFFS Used: %u bytes\n", SPIFFS.usedBytes());
+    Serial.printf("LittleFS Used: %u bytes\n", LittleFS.usedBytes());
-    Serial.printf("SPIFFS Free: %u bytes\n", SPIFFS.totalBytes() - SPIFFS.usedBytes());
+    Serial.printf("LittleFS Free: %u bytes\n", LittleFS.totalBytes() - LittleFS.usedBytes());
 }

src/commonFS.h

@@ -2,11 +2,11 @@
 #define COMMONFS_H
 
 #include <Arduino.h>
-#include <SPIFFS.h>
 #include <ArduinoJson.h>
+#include <LittleFS.h>
 
 bool saveJsonValue(const char* filename, const JsonDocument& doc);
 bool loadJsonValue(const char* filename, JsonDocument& doc);
-void initializeSPIFFS();
+void initializeFileSystem();
 
 #endif

src/main.cpp

@@ -24,7 +24,7 @@ void setup() {
   Serial.printf("%08X\n", (uint32_t)chipid); //print Low 4bytes.
 
   // Initialize SPIFFS
-  initializeSPIFFS();
+  initializeFileSystem();
 
   // Start Display
   setupDisplay();
@@ -74,6 +74,21 @@ void setup() {
 }
 
 
+/**
+ * Safe interval check that handles millis() overflow
+ * @param currentTime Current millis() value
+ * @param lastTime Last recorded time
+ * @param interval Desired interval in milliseconds
+ * @return True if interval has elapsed
+ */
+bool intervalElapsed(unsigned long currentTime, unsigned long &lastTime, unsigned long interval) {
+  if (currentTime - lastTime >= interval || currentTime < lastTime) {
+    lastTime = currentTime;
+    return true;
+  }
+  return false;
+}
+
 unsigned long lastWeightReadTime = 0;
 const unsigned long weightReadInterval = 1000; // 1 second
 
@@ -81,9 +96,6 @@ unsigned long lastAutoSetBambuAmsTime = 0;
 const unsigned long autoSetBambuAmsInterval = 1000; // 1 second
 uint8_t autoAmsCounter = 0;
 
-unsigned long lastAmsSendTime = 0;
-const unsigned long amsSendInterval = 60000; // 1 minute
-
 uint8_t weightSend = 0;
 int16_t lastWeight = 0;
 
@@ -95,41 +107,34 @@ void loop() {
   unsigned long currentMillis = millis();
 
   // Überprüfe regelmäßig die WLAN-Verbindung
-  if (millis() - lastWifiCheckTime > wifiCheckInterval) {
+  if (intervalElapsed(currentMillis, lastWifiCheckTime, wifiCheckInterval)) {
     checkWiFiConnection();
-    lastWifiCheckTime = millis();
-  }
-
-  // Send AMS Data min every Minute
-  if (currentMillis - lastAmsSendTime >= amsSendInterval) 
-  {
-    lastAmsSendTime = currentMillis;
-    //sendAmsData(nullptr);
   }
 
   // Wenn Bambu auto set Spool aktiv
-  if (autoSendToBambu && autoSetToBambuSpoolId > 0 && currentMillis - lastAutoSetBambuAmsTime >= autoSetBambuAmsInterval) 
+  if (autoSendToBambu && autoSetToBambuSpoolId > 0) {
-  {
+    if (intervalElapsed(currentMillis, lastAutoSetBambuAmsTime, autoSetBambuAmsInterval)) 
-    if (hasReadRfidTag == 0)
     {
-      lastAutoSetBambuAmsTime = currentMillis;
+      if (hasReadRfidTag == 0)
-      oledShowMessage("Auto Set         " + String(autoSetBambuAmsCounter - autoAmsCounter) + "s");
+      {
-      autoAmsCounter++;
+        lastAutoSetBambuAmsTime = currentMillis;
-
+        oledShowMessage("Auto Set         " + String(autoSetBambuAmsCounter - autoAmsCounter) + "s");
-      if (autoAmsCounter >= autoSetBambuAmsCounter) 
+        autoAmsCounter++;
+
+        if (autoAmsCounter >= autoSetBambuAmsCounter) 
+        {
+          autoSetToBambuSpoolId = 0;
+          autoAmsCounter = 0;
+          oledShowWeight(weight);
+        }
+      }
+      else
       {
-        autoSetToBambuSpoolId = 0;
         autoAmsCounter = 0;
-        oledShowWeight(weight);
       }
     }
-    else
-    {
-      autoAmsCounter = 0;
-    }
   }
 
-
   // Wenn Waage nicht Kalibriert
   if (scaleCalibrated == 3) 
   {

src/ota.cpp

@@ -17,8 +17,8 @@ static bool isSpiffsUpdate = false;
 
 void backupJsonConfigs() {
     // Bambu Credentials backup
-    if (SPIFFS.exists("/bambu_credentials.json")) {
+    if (LittleFS.exists("/bambu_credentials.json")) {
-        File file = SPIFFS.open("/bambu_credentials.json", "r");
+        File file = LittleFS.open("/bambu_credentials.json", "r");
         if (file) {
             bambuCredentialsBackup = file.readString();
             file.close();
@@ -27,8 +27,8 @@ void backupJsonConfigs() {
     }
 
     // Spoolman URL backup
-    if (SPIFFS.exists("/spoolman_url.json")) {
+    if (LittleFS.exists("/spoolman_url.json")) {
-        File file = SPIFFS.open("/spoolman_url.json", "r");
+        File file = LittleFS.open("/spoolman_url.json", "r");
         if (file) {
             spoolmanUrlBackup = file.readString();
             file.close();
@@ -40,7 +40,7 @@ void backupJsonConfigs() {
 void restoreJsonConfigs() {
     // Restore Bambu credentials
     if (bambuCredentialsBackup.length() > 0) {
-        File file = SPIFFS.open("/bambu_credentials.json", "w");
+        File file = LittleFS.open("/bambu_credentials.json", "w");
         if (file) {
             file.print(bambuCredentialsBackup);
             file.close();
@@ -51,7 +51,7 @@ void restoreJsonConfigs() {
 
     // Restore Spoolman URL
     if (spoolmanUrlBackup.length() > 0) {
-        File file = SPIFFS.open("/spoolman_url.json", "w");
+        File file = LittleFS.open("/spoolman_url.json", "w");
         if (file) {
             file.print(spoolmanUrlBackup);
             file.close();

src/website.cpp

@@ -113,12 +113,12 @@ void onWsEvent(AsyncWebSocket *server, AsyncWebSocketClient *client, AwsEventTyp
 // Funktion zum Laden und Ersetzen des Headers in einer HTML-Datei
 String loadHtmlWithHeader(const char* filename) {
     Serial.println("Lade HTML-Datei: " + String(filename));
-    if (!SPIFFS.exists(filename)) {
+    if (!LittleFS.exists(filename)) {
         Serial.println("Fehler: Datei nicht gefunden!");
         return "Fehler: Datei nicht gefunden!";
     }
 
-    File file = SPIFFS.open(filename, "r");
+    File file = LittleFS.open(filename, "r");
     String html = file.readString();
     file.close();
 
@@ -195,7 +195,7 @@ void setupWebserver(AsyncWebServer &server) {
     // Route für about
     server.on("/about", HTTP_GET, [](AsyncWebServerRequest *request){
         Serial.println("Anfrage für /about erhalten");
-        AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/index.html.gz", "text/html");
+        AsyncWebServerResponse *response = request->beginResponse(LittleFS, "/index.html.gz", "text/html");
         response->addHeader("Content-Encoding", "gzip");
         response->addHeader("Cache-Control", CACHE_CONTROL);
         request->send(response);
@@ -204,7 +204,7 @@ void setupWebserver(AsyncWebServer &server) {
     // Route für Waage
     server.on("/waage", HTTP_GET, [](AsyncWebServerRequest *request){
         Serial.println("Anfrage für /waage erhalten");
-        AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/waage.html.gz", "text/html");
+        AsyncWebServerResponse *response = request->beginResponse(LittleFS, "/waage.html.gz", "text/html");
         response->addHeader("Content-Encoding", "gzip");
         response->addHeader("Cache-Control", CACHE_CONTROL);
         request->send(response);
@@ -213,7 +213,7 @@ void setupWebserver(AsyncWebServer &server) {
     // Route für RFID
     server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
         Serial.println("Anfrage für /rfid erhalten");
-        AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/rfid.html.gz", "text/html");
+        AsyncWebServerResponse *response = request->beginResponse(LittleFS, "/rfid.html.gz", "text/html");
         response->addHeader("Content-Encoding", "gzip");
         response->addHeader("Cache-Control", CACHE_CONTROL);
         request->send(response);
@@ -229,7 +229,7 @@ void setupWebserver(AsyncWebServer &server) {
     // Route für WiFi
     server.on("/wifi", HTTP_GET, [](AsyncWebServerRequest *request){
         Serial.println("Anfrage für /wifi erhalten");
-        AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/wifi.html.gz", "text/html");
+        AsyncWebServerResponse *response = request->beginResponse(LittleFS, "/wifi.html.gz", "text/html");
         response->addHeader("Content-Encoding", "gzip");
         response->addHeader("Cache-Control", CACHE_CONTROL);
         request->send(response);
@@ -322,7 +322,7 @@ void setupWebserver(AsyncWebServer &server) {
     // Route für das Laden der CSS-Datei
     server.on("/style.css", HTTP_GET, [](AsyncWebServerRequest *request){
         Serial.println("Lade style.css");
-        AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/style.css.gz", "text/css");
+        AsyncWebServerResponse *response = request->beginResponse(LittleFS, "/style.css.gz", "text/css");
         response->addHeader("Content-Encoding", "gzip");
         response->addHeader("Cache-Control", CACHE_CONTROL);
         request->send(response);
@@ -331,7 +331,7 @@ void setupWebserver(AsyncWebServer &server) {
 
     // Route für das Logo
     server.on("/logo.png", HTTP_GET, [](AsyncWebServerRequest *request){
-        AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/logo.png.gz", "image/png");
+        AsyncWebServerResponse *response = request->beginResponse(LittleFS, "/logo.png.gz", "image/png");
         response->addHeader("Content-Encoding", "gzip");
         response->addHeader("Cache-Control", CACHE_CONTROL);
         request->send(response);
@@ -340,7 +340,7 @@ void setupWebserver(AsyncWebServer &server) {
 
     // Route für Favicon
     server.on("/favicon.ico", HTTP_GET, [](AsyncWebServerRequest *request){
-        AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/favicon.ico", "image/x-icon");
+        AsyncWebServerResponse *response = request->beginResponse(LittleFS, "/favicon.ico", "image/x-icon");
         response->addHeader("Cache-Control", CACHE_CONTROL);
         request->send(response);
         Serial.println("favicon.ico gesendet");
@@ -348,7 +348,7 @@ void setupWebserver(AsyncWebServer &server) {
 
     // Route für spool_in.png
     server.on("/spool_in.png", HTTP_GET, [](AsyncWebServerRequest *request){
-        AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/spool_in.png.gz", "image/png");
+        AsyncWebServerResponse *response = request->beginResponse(LittleFS, "/spool_in.png.gz", "image/png");
         response->addHeader("Content-Encoding", "gzip");
         response->addHeader("Cache-Control", CACHE_CONTROL);
         request->send(response);
@@ -357,7 +357,7 @@ void setupWebserver(AsyncWebServer &server) {
 
     // Route für set_spoolman.png
     server.on("/set_spoolman.png", HTTP_GET, [](AsyncWebServerRequest *request){
-        AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/set_spoolman.png.gz", "image/png");
+        AsyncWebServerResponse *response = request->beginResponse(LittleFS, "/set_spoolman.png.gz", "image/png");
         response->addHeader("Content-Encoding", "gzip");
         response->addHeader("Cache-Control", CACHE_CONTROL);
         request->send(response);
@@ -367,7 +367,7 @@ void setupWebserver(AsyncWebServer &server) {
     // Route für JavaScript Dateien
     server.on("/spoolman.js", HTTP_GET, [](AsyncWebServerRequest *request){
         Serial.println("Anfrage für /spoolman.js erhalten");
-        AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/spoolman.js.gz", "text/javascript");
+        AsyncWebServerResponse *response = request->beginResponse(LittleFS, "/spoolman.js.gz", "text/javascript");
         response->addHeader("Content-Encoding", "gzip");
         response->addHeader("Cache-Control", CACHE_CONTROL);
         request->send(response);
@@ -376,7 +376,7 @@ void setupWebserver(AsyncWebServer &server) {
 
     server.on("/rfid.js", HTTP_GET, [](AsyncWebServerRequest *request){
         Serial.println("Anfrage für /rfid.js erhalten");
-        AsyncWebServerResponse *response = request->beginResponse(SPIFFS,"/rfid.js.gz", "text/javascript");
+        AsyncWebServerResponse *response = request->beginResponse(LittleFS,"/rfid.js.gz", "text/javascript");
         response->addHeader("Content-Encoding", "gzip");
         response->addHeader("Cache-Control", CACHE_CONTROL);
         request->send(response);
@@ -385,7 +385,7 @@ void setupWebserver(AsyncWebServer &server) {
 
     // Vereinfachter Update-Handler
     server.on("/upgrade", HTTP_GET, [](AsyncWebServerRequest *request) {
-        AsyncWebServerResponse *response = request->beginResponse(SPIFFS, "/upgrade.html.gz", "text/html");
+        AsyncWebServerResponse *response = request->beginResponse(LittleFS, "/upgrade.html.gz", "text/html");
         response->addHeader("Content-Encoding", "gzip");
         response->addHeader("Cache-Control", "no-store");
         request->send(response);