text: #ifndef _secrets_h
  #define _secrets_h
  
  #include <string>
  #include <Arduino.h>
  
  namespace Settings {
    extern const char* const SSID;
    extern const char* const WIFI_PASSWORD;
    extern const char* const OTA_PASSWORD;
    extern const char* const MQTT_SERVER;
    extern const uint16_t MQTT_PORT;
    extern const std::string MQTT_TOPIC;
  };
  
  #endif
  