added the ability to connect to a hidden network

BIM32/BIM32.ino

@@ -1,5 +1,5 @@
 /**
- *  Weather Monitor BIM32 v3.6
+ *  Weather Monitor BIM32 v3.7
  *  https://github.com/himikat123/Weather-monitor-BIM32
  *
  *  © himikat123@gmail.com, Nürnberg, Deutschland, 2020-2024

BIM32/globals.hpp

@@ -25,7 +25,7 @@
 #define SEPARATOR "**********************************************************************"
 
 struct {
-  char fw[7] = "v3.6"; // Firmware version
+  char fw[7] = "v3.7"; // Firmware version
   const char* remote_host = "www.google.com"; // Remote host to ping
   bool clockSynchronized = false; // Is the time synchronized with the ntp server?
   bool clockSynchronize = false; // Should the display RTC be updated?

BIM32/network.hpp

@@ -3,6 +3,9 @@ class Network {
     bool isConnected(void);
     void connect(void);
     void runAccessPoint(void);
+
+  private:
+    void connecting(uint8_t num);
 };
 
 /**
@@ -26,39 +29,32 @@ void Network::connect(void) {
     }
   }
   WiFi.mode(WIFI_STA);
+  WiFi.setHostname("BIM32");
   bool anySSID = false;
   for(unsigned int i=0; i<NETWORKS; i++) {
     if(String(config.network_ssid(i)) != "") anySSID = true;
   }
   if(anySSID) {
     if(WiFi.status() != WL_CONNECTED) {
       unsigned int numberOfNetworks = WiFi.scanNetworks();
-      if(numberOfNetworks > 0) {
-        int knownNetwork = -1;
-        for(int i=0; i<numberOfNetworks; i++) {
-          for(int k=0; k<NETWORKS; k++) {
-            if(WiFi.SSID(i) == config.network_ssid(k)) {
-              knownNetwork = k;
-              break;
-            }
-          }  
-        }
-        if(knownNetwork >= 0) {
-          Serial.print("Connecting to "); Serial.println(config.network_ssid(knownNetwork));
-          WiFi.begin(config.network_ssid(knownNetwork), config.network_pass(knownNetwork));
-          unsigned int attempts = 0;
-          while(WiFi.status() != WL_CONNECTED) {
-            delay(500);
-            Serial.print(".");
-            ws2812b.connecting();
-            if(++attempts > 20) break;
+      int knownNetwork = -1;
+      for(int i=0; i<numberOfNetworks; i++) {
+        for(int k=0; k<NETWORKS; k++) {
+          if(WiFi.SSID(i) == config.network_ssid(k)) {
+            knownNetwork = k;
+            break;
           }
-          if(WiFi.status() == WL_CONNECTED) Serial.println(" connected");
-          else Serial.println(" failed");
-        }
-        else Serial.println("No known networks found"); 
+        }  
+      }
+      if(knownNetwork >= 0) {
+        Serial.print("Connecting to "); Serial.println(config.network_ssid(knownNetwork));
+        connecting(knownNetwork);
+      }
+      else {
+        Serial.println("No known networks found");
+        Serial.println("trying to connect to network 1 in case it's a hidden network");
+        connecting(0);
       }
-      else Serial.println("No networks found");
     }
     if(WiFi.status() == WL_CONNECTED) {
       WiFi.setAutoConnect(true);
@@ -86,6 +82,19 @@ void Network::connect(void) {
   }
 }
 
+void Network::connecting(uint8_t num) {
+  WiFi.begin(config.network_ssid(num), config.network_pass(num));
+  unsigned int attempts = 0;
+  while(WiFi.status() != WL_CONNECTED) {
+    delay(500);
+    Serial.print(".");
+    ws2812b.connecting();
+    if(++attempts > 20) break;
+  }
+  if(WiFi.status() == WL_CONNECTED) Serial.println(" connected");
+  else Serial.println(" failed");
+}
+
 /**
  * Start Access point
  */
@@ -104,4 +113,4 @@ void Network::runAccessPoint(void) {
     Serial.println(SEPARATOR);
     Serial.println();
   }
-}
+}