feat: füge regelmäßige WLAN-Verbindungsüberprüfung hinzu

src/main.cpp

@@ -100,12 +100,20 @@ const unsigned long amsSendInterval = 60000; // 1 minute
 
 uint8_t weightSend = 0;
 int16_t lastWeight = 0;
-uint8_t wifiErrorCounter = 0;
+
+unsigned long lastWifiCheckTime = 0;
+const unsigned long wifiCheckInterval = 60000; // Überprüfe alle 60 Sekunden (60000 ms)
 
 // ##### PROGRAM START #####
 void loop() {
   unsigned long currentMillis = millis();
 
+  // Überprüfe regelmäßig die WLAN-Verbindung
+  if (millis() - lastWifiCheckTime > wifiCheckInterval) {
+    checkWiFiConnection();
+    lastWifiCheckTime = millis();
+  }
+
   // Send AMS Data min every Minute
   if (currentMillis - lastAmsSendTime >= amsSendInterval) 
   {

src/wlan.cpp

@@ -8,48 +8,78 @@
 
 WiFiManager wm;
 bool wm_nonblocking = false;
+uint8_t wifiErrorCounter = 0;
 
 void initWiFi() {
-    // Optimierte WiFi-Einstellungen
-    WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP
-    WiFi.setSleep(false); // disable sleep mode
-    esp_wifi_set_ps(WIFI_PS_NONE);
-    
-    // Maximale Sendeleistung
-    WiFi.setTxPower(WIFI_POWER_19_5dBm); // Set maximum transmit power
+  // Optimierte WiFi-Einstellungen
+  WiFi.mode(WIFI_STA); // explicitly set mode, esp defaults to STA+AP
+  WiFi.setSleep(false); // disable sleep mode
+  esp_wifi_set_ps(WIFI_PS_NONE);
   
-    // Optimiere TCP/IP Stack
-    esp_wifi_set_protocol(WIFI_IF_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
-    
-    // Aktiviere WiFi-Roaming für bessere Stabilität
-    esp_wifi_set_rssi_threshold(-80);
+  // Maximale Sendeleistung
+  WiFi.setTxPower(WIFI_POWER_19_5dBm); // Set maximum transmit power
+
+  // Optimiere TCP/IP Stack
+  esp_wifi_set_protocol(WIFI_IF_STA, WIFI_PROTOCOL_11B | WIFI_PROTOCOL_11G | WIFI_PROTOCOL_11N);
   
-    if(wm_nonblocking) wm.setConfigPortalBlocking(false);
-    wm.setConfigPortalTimeout(320); // Portal nach 5min schließen
+  // Aktiviere WiFi-Roaming für bessere Stabilität
+  esp_wifi_set_rssi_threshold(-80);
+
+  if(wm_nonblocking) wm.setConfigPortalBlocking(false);
+  wm.setConfigPortalTimeout(320); // Portal nach 5min schließen
+
+  oledShowTopRow();
+  oledShowMessage("WiFi Setup");
   
+  bool res;
+  // res = wm.autoConnect(); // auto generated AP name from chipid
+  res = wm.autoConnect("FilaMan"); // anonymous ap
+  // res = wm.autoConnect("spoolman","password"); // password protected ap
+
+  if(!res) {
+    Serial.println("Failed to connect or hit timeout");
+    // ESP.restart();
     oledShowTopRow();
-    oledShowMessage("WiFi Setup");
-    
-    bool res;
-    // res = wm.autoConnect(); // auto generated AP name from chipid
-    res = wm.autoConnect("FilaMan"); // anonymous ap
-    // res = wm.autoConnect("spoolman","password"); // password protected ap
-  
-    if(!res) {
-      Serial.println("Failed to connect or hit timeout");
-      // ESP.restart();
-      oledShowTopRow();
-      oledShowMessage("WiFi not connected Check Portal");
+    oledShowMessage("WiFi not connected Check Portal");
+  } 
+  else {
+    wifiOn = true;
+
+    //if you get here you have connected to the WiFi    
+    Serial.println("connected...yeey :)");
+    Serial.print("IP address: ");
+    Serial.println(WiFi.localIP());
+
+    oledShowTopRow();
+    display.display();
+  }
+}
+
+void checkWiFiConnection() {
+  if (WiFi.status() != WL_CONNECTED) 
+  {
+    Serial.println("WiFi connection lost. Reconnecting...");
+    oledShowTopRow();
+    oledShowMessage("WiFi reconnecting...");
+    WiFi.reconnect(); // Versuche, die Verbindung wiederherzustellen
+    delay(5000); // Warte 5 Sekunden, bevor erneut geprüft wird
+    if (WiFi.status() != WL_CONNECTED) 
+    {
+      Serial.println("Failed to reconnect. Restarting WiFi...");
+      WiFi.disconnect();
+      delay(1000);
+      wifiErrorCounter++;
+      //initWiFi();
     } 
-    else {
-      wifiOn = true;
-  
-      //if you get here you have connected to the WiFi    
-      Serial.println("connected...yeey :)");
-      Serial.print("IP address: ");
-      Serial.println(WiFi.localIP());
-  
-      oledShowTopRow();
-      display.display();
+    else 
+    {
+      wifiErrorCounter = 0;
     }
-  }
+  }
+
+  if (wifiErrorCounter >= 5) 
+  {
+    Serial.println("Too many WiFi errors. Restarting...");
+    ESP.restart();
+  }
+}

src/wlan.h

@@ -4,5 +4,6 @@
 #include <Arduino.h>
 
 void initWiFi();
+void checkWiFiConnection();
 
 #endif