add class comment

ESPMegaPRO-firmware/lib/ESPMegaPRO/AnalogIoT.hpp

@@ -11,6 +11,13 @@
 #define DAC_PUBLISH_ENABLE_TOPIC "/publish_enable"
 #define REQUEST_STATE_TOPIC "requeststate"
 
+/**
+ * @brief The AnalogIoT class is a class for connecting the Analog Card to the IoT module.
+ * 
+ * This function allows you to control the Analog Card using MQTT.
+ * 
+ * @warning You should not instantiate this class directly, instead use ESPMegaIoT's registerCard function.
+ */
 class AnalogIoT : public IoTComponent {
     public:
         AnalogIoT();