diff --git a/src/espmega_iot_core.cpp b/src/espmega_iot_core.cpp
index 64a7450..e895f15 100644
--- a/src/espmega_iot_core.cpp
+++ b/src/espmega_iot_core.cpp
@@ -1866,6 +1866,11 @@ void disable_adc(int id)
   publish_adc_state(id);
 }
 
+/**
+ * Publishes the state of an ADC (Analog-to-Digital Converter) to the MQTT broker.
+ * 
+ * @param id The ID of the ADC.
+ */
 void publish_adc_state(int id)
 {
   ADC_STATE_TOPIC[base_topic_length + 4] = ((id - id % 10) / 10) + '0';
@@ -1873,6 +1878,11 @@ void publish_adc_state(int id)
   mqtt.publish(ADC_STATE_TOPIC, adc_report_enable[id] ? "on" : "off");
 }
 
+/**
+ * @brief Publishes the ADC states.
+ * 
+ * This function iterates over the ADC channels and publishes the state of each channel.
+ */
 void publish_adc_states()
 {
   for (int i = 0; i < ADC_COUNT; i++)
@@ -1958,6 +1968,11 @@ void publish_adc_values()
   }
 }
 
+/**
+ * Publishes the state of a DAC (Digital-to-Analog Converter) to the MQTT broker.
+ * 
+ * @param id The ID of the DAC.
+ */
 void publish_dac_state(int id)
 {
   DAC_STATE_TOPIC[base_topic_length + 4] = ((id - id % 10) / 10) + '0';
@@ -1965,6 +1980,11 @@ void publish_dac_state(int id)
   mqtt.publish(DAC_STATE_TOPIC, dac_states[id] ? "on" : "off");
 }
 
+/**
+ * Publishes the DAC value for a given ID.
+ * 
+ * @param id The ID of the DAC value to publish.
+ */
 void publish_dac_value(int id)
 {
   DAC_VALUE_TOPIC[base_topic_length + 4] = ((id - id % 10) / 10) + '0';
@@ -2052,6 +2072,13 @@ void dac_set_state(int id, bool state)
   publish_dac_state(id);
 }
 
+/**
+ * @brief Publishes the states of all DACs.
+ * 
+ * This function iterates through all DACs and publishes their states.
+ * 
+ * @return void
+ */
 void publish_dac_states()
 {
   for (int i = 0; i < DAC_COUNT; i++)
@@ -2060,6 +2087,13 @@ void publish_dac_states()
   }
 }
 
+/**
+ * @brief Publishes the DAC values.
+ * 
+ * This function iterates through all the DAC channels and publishes their values.
+ * 
+ * @return void
+ */
 void publish_dac_values()
 {
   for (int i = 0; i < DAC_COUNT; i++)
@@ -2109,4 +2143,46 @@ void dac_set_state_callback(char *topic, uint8_t topic_length, char *payload, un
     dac_set_state(id, false);
   }
 }
+
+/**
+ * @brief Get the ADC value for the specified ID.
+ * 
+ * @param id The ID of the ADC channel.
+ * @return The ADC value.
+ */
+uint16_t adc_get_value(int id)
+{
+  return adc_values[id];
+}
+/**
+ * @brief Get the state of the ADC with the specified ID.
+ * 
+ * @param id The ID of the ADC.
+ * @return true if the ADC is enabled, false otherwise.
+ */
+bool adc_get_state(int id)
+{
+  return adc_report_enable[id];
+}
+/**
+ * @brief Get the value of a DAC channel.
+ * 
+ * @param id The ID of the DAC channel.
+ * @return The value of the DAC channel.
+ */
+uint16_t dac_get_value(int id)
+{
+  return dac_values[id];
+}
+/**
+ * @brief Get the state of the DAC with the specified ID.
+ * 
+ * @param id The ID of the DAC.
+ * @return The state of the DAC.
+ */
+bool dac_get_state(int id)
+{
+  return dac_states[id];
+}
+
 #endif
diff --git a/src/espmega_iot_core.hpp b/src/espmega_iot_core.hpp
index 531735a..f0b63af 100644
--- a/src/espmega_iot_core.hpp
+++ b/src/espmega_iot_core.hpp
@@ -152,4 +152,8 @@ void publish_dac_state(int id);
 void publish_dac_values();
 void publish_dac_states();
 void publish_adc_state(int id);
-void publish_adc_states();
\ No newline at end of file
+void publish_adc_states();
+uint16_t adc_get_value(int id);
+bool adc_get_state(int id);
+uint16_t dac_get_value(int id);
+bool dac_get_state(int id);
\ No newline at end of file
diff --git a/src/user_code.hpp b/src/user_code.hpp
index 395a6e4..9de5311 100644
--- a/src/user_code.hpp
+++ b/src/user_code.hpp
@@ -41,18 +41,20 @@
 #define ANALOG_REPORTING_INTERVAL 500
 
 // User Defined Functions
+void timer1_callback();
+void bt0PopCallback(void *ptr);
+
+// User Defined IoT Core Callback Functions (Required)
+void user_mqtt_callback(char* topic, uint8_t topic_length, char* payload, unsigned int payload_length);
+void user_state_request_callback();
+void mqtt_connected_user_callback();
 void user_pre_init();
 void user_init();
 void user_loop();
-void virtual_interrupt_user_callback(int pin, int state);
 void pwm_changed_user_callback(int pin);
 void ac_changed_user_callback(int mode, int temperature, int fan_speed);
 void timer_tick_callback();
-void timer1_callback();
-void mqtt_connected_user_callback();
-void bt0PopCallback(void *ptr);
-void user_state_request_callback();
-void user_mqtt_callback(char* topic, uint8_t topic_length, char* payload, unsigned int payload_length);
+void virtual_interrupt_user_callback(int pin, int state);
 
 // ESPMega IoT Core Build-in Functions
 extern void pwm_set_state(int id, int state);
@@ -64,9 +66,26 @@ extern bool pwm_get_state(int id);
 extern uint16_t pwm_get_value(int id);
 extern boolean pwm_group_state(int id1, int id2);
 extern bool input_get_state(int id);
+extern bool standalone;
+extern PubSubClient mqtt;
+
+// IR Kit Build-in Functions
+#ifdef ENABLE_IR_MODULE
 extern void ac_set_state(int mode, int temperature, int fan_speed);
 extern uint8_t ac_get_temperature();
 extern uint8_t ac_get_mode();
 extern uint8_t ac_get_fan_speed();
-extern bool standalone;
-extern PubSubClient mqtt;
\ No newline at end of file
+#endif
+
+//Analog Expansion Card Build-in Functions
+#ifdef ENABLE_ANALOG_MODULE
+extern void dac_set_value(int id, int value);
+extern void dac_set_state(int id, bool state);
+extern void enable_adc(int id);
+extern void disable_adc(int id);
+extern void enable_dac(int id);
+extern uint16_t adc_get_value(int id);
+extern bool adc_get_state(int id);
+extern uint16_t dac_get_value(int id);
+extern bool dac_get_state(int id);
+#endif
\ No newline at end of file