Complied V2 version, ready to start testing and start developing GUI

lib/Core/Storage.h

@@ -0,0 +1,41 @@
+#ifndef STORAGE_H
+#define STORAGE_H
+#include <Arduino.h>
+#include <LittleFS.h> //Built-in ESP32 library for file system management
+
+class Storage {
+public:
+  /**
+   * @brief Initialice LittleFS and read configuration file.
+   * @return String with the JSON content or an empty string if the file does not exist or cannot be read.
+   */
+  static String readConfigFile() {
+    if(!LittleFS.begin(true)) {
+        Serial.println("[Storage] Error to initialize LittleFS");
+        return "";
+    }
+    if (!LittleFS.exists("/config.json")) {
+        Serial.println("[Storage] Configuration file does not exist");
+        return "";
+    }
+    File file = LittleFS.open("/config.json", "r");
+    if (!file) {
+        Serial.println("[Storage] Error opening configuration file");
+        return "";
+    }
+    String content = file.readString();
+    file.close();
+    return content;
+  }
+  static void saveConfigFile(const String& jsonConfig) {
+    File file = LittleFS.open("/config.json", "w");
+    if (!file) {
+        Serial.println("[Storage] Error opening configuration file for writing");
+        return;
+    }
+    file.print(jsonConfig);
+    file.close();
+    Serial.println("[Storage] Configuration file saved");
+  }
+};
+#endif