diff --git a/include/zh_aht.h b/include/zh_aht.h
index e034f02..db12668 100644
--- a/include/zh_aht.h
+++ b/include/zh_aht.h
@@ -1,3 +1,7 @@
+/**
+ * @file zh_aht.h
+ */
+
 #pragma once
 
 #include "esp_err.h"
@@ -10,21 +14,26 @@
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
+/**
+ * @brief AHT sensor initial default values.
+ */
 #define ZH_AHT_INIT_CONFIG_DEFAULT() \
     {                                \
-        .i2c_port = 0                \
-    }
+        .i2c_port = 0}
 
 #ifdef __cplusplus
 extern "C"
 {
 #endif
 
-    typedef struct // Structure for initial initialization of AHT sensor.
+    /**
+     * @brief Structure for initial initialization of AHT sensor.
+     */
+    typedef struct
     {
-        bool i2c_port; // I2C port.
+        bool i2c_port; /*!< I2C port. */
 #ifndef CONFIG_IDF_TARGET_ESP8266
-        i2c_master_bus_handle_t i2c_handle; // Unique I2C bus handle.
+        i2c_master_bus_handle_t i2c_handle; /*!< Unique I2C bus handle. */
 #endif
     } zh_aht_init_config_t;
 
@@ -39,11 +48,7 @@ extern "C"
      *
      * @code zh_aht_init_config_t config = ZH_AHT_INIT_CONFIG_DEFAULT() @endcode
      *
-     * @return
-     *              - ESP_OK if initialization was success
-     *              - ESP_ERR_INVALID_ARG if parameter error
-     *              - ESP_ERR_NOT_FOUND if sensor not connected or not responded
-     *              - ESP_ERR_INVALID_RESPONSE if I2C driver error
+     * @return ESP_OK if success or an error code otherwise.
      */
     esp_err_t zh_aht_init(const zh_aht_init_config_t *config);
 
@@ -53,23 +58,14 @@ extern "C"
      * @param[out] humidity Pointer for AHT sensor reading data of humidity.
      * @param[out] temperature Pointer for AHT sensor reading data of temperature.
      *
-     * @return
-     *              - ESP_OK if read was success
-     *              - ESP_ERR_INVALID_ARG if parameter error
-     *              - ESP_ERR_NOT_FOUND if sensor is not initialized
-     *              - ESP_ERR_INVALID_CRC if check CRC is fail
-     *              - ESP_ERR_INVALID_RESPONSE if I2C driver error
-     *              - ESP_ERR_TIMEOUT if sensor has not responded
+     * @return ESP_OK if success or an error code otherwise.
      */
     esp_err_t zh_aht_read(float *humidity, float *temperature);
 
     /**
      * @brief Reset AHT sensor.
      *
-     * @return
-     *              - ESP_OK if reset was success
-     *              - ESP_ERR_NOT_FOUND if sensor is not initialized
-     *              - ESP_ERR_INVALID_RESPONSE if I2C driver error
+     * @return ESP_OK if success or an error code otherwise.
      */
     esp_err_t zh_aht_reset(void);
 
diff --git a/zh_aht.c b/zh_aht.c
index 1f47a70..c55dc5d 100644
--- a/zh_aht.c
+++ b/zh_aht.c
@@ -1,15 +1,15 @@
 #include "zh_aht.h"
 
-#define I2C_MAX_DATA_SIZE 7                    // Sensor maximum data size (in bytes).
-#define MEASUREMENT_TIME 80                    // Sensor measurement time (in milliseconds).
-#define RESET_TIME 20                          // Sensor reset time (in milliseconds).
-#define I2C_ADDRESS 0x38                       // Sensor I2C address.
-#define I2C_DATA_READ_COMMAND 0xAC, 0x33, 0x00 // Command for read sensor data (temperature and humidity).
-#define I2C_RESET_COMMAND 0xBA                 // Command for reset sensor.
-#define I2C_INIT_COMMAND 0x00, 0x08, 0x00      // Command for initialize sensor. First byte is depend of sensor type.
-#define I2C_INIT_AHT1X_FIRST_BYTE 0xE1         // First byte for command for initialize sensor. For AHT1X series.
-#define I2C_INIT_AHT2X_FIRST_BYTE 0xBE         // First byte for command for initialize sensor. For AHT2X/3X series.
-#define I2C_STATUS_READ_COMMAND 0x71           // Command for read sensor status.
+#define I2C_MAX_DATA_SIZE 7                    /*!< Sensor maximum data size (in bytes). */
+#define MEASUREMENT_TIME 80                    /*!< Sensor measurement time (in milliseconds). */
+#define RESET_TIME 20                          /*!< Sensor reset time (in milliseconds). */
+#define I2C_ADDRESS 0x38                       /*!< Sensor I2C address. */
+#define I2C_DATA_READ_COMMAND 0xAC, 0x33, 0x00 /*!< Command for read sensor data (temperature and humidity). */
+#define I2C_RESET_COMMAND 0xBA                 /*!< Command for reset sensor. */
+#define I2C_INIT_COMMAND 0x00, 0x08, 0x00      /*!< Command for initialize sensor. First byte is depend of sensor type. */
+#define I2C_INIT_AHT1X_FIRST_BYTE 0xE1         /*!< First byte for command for initialize sensor. For AHT1X series. */
+#define I2C_INIT_AHT2X_FIRST_BYTE 0xBE         /*!< First byte for command for initialize sensor. For AHT2X/3X series. */
+#define I2C_STATUS_READ_COMMAND 0x71           /*!< Command for read sensor status. */
 
 static zh_aht_init_config_t _init_config = {0};
 static bool _is_initialized = false;
@@ -188,7 +188,7 @@ esp_err_t zh_aht_read(float *humidity, float *temperature)
         ESP_LOGE(TAG, "AHT read fail. I2C driver error at line %d.", __LINE__);
         return ESP_ERR_INVALID_RESPONSE;
     }
-    if ((sensor_data[0] & 0x40) != 0) // If sensor is busy in measurement.
+    if ((sensor_data[0] & 0x40) != 0)
     {
         ESP_LOGE(TAG, "AHT read fail. Timeout exceeded.");
         return ESP_ERR_TIMEOUT;