diff --git a/include/zh_aht.h b/include/zh_aht.h
index cb809b2..e034f02 100644
--- a/include/zh_aht.h
+++ b/include/zh_aht.h
@@ -10,11 +10,9 @@
 #include "freertos/FreeRTOS.h"
 #include "freertos/task.h"
 
-#define ZH_AHT_INIT_CONFIG_DEFAULT()       \
-    {                                      \
-        .sensor_type = ZH_AHT2X,           \
-        .i2c_address = ZH_I2C_ADDRESS_LOW, \
-        .i2c_port = 0                      \
+#define ZH_AHT_INIT_CONFIG_DEFAULT() \
+    {                                \
+        .i2c_port = 0                \
     }
 
 #ifdef __cplusplus
@@ -24,16 +22,6 @@ extern "C"
 
     typedef struct // Structure for initial initialization of AHT sensor.
     {
-        enum // Sensor type.
-        {
-            ZH_AHT1X, // AHT10/AHT15.
-            ZH_AHT2X  // AHT20/AHT21/AHT25/AHT30.
-        } sensor_type;
-        enum // Sensor I2C address.
-        {
-            ZH_I2C_ADDRESS_HIGH = 0x39, // Address pin connected to VCC. AHT10 only.
-            ZH_I2C_ADDRESS_LOW = 0x38   // AHT15/AHT20/AHT21/AHT25/AHT30. AHT10 address pin connected to GND.
-        } i2c_address;
         bool i2c_port; // I2C port.
 #ifndef CONFIG_IDF_TARGET_ESP8266
         i2c_master_bus_handle_t i2c_handle; // Unique I2C bus handle.
diff --git a/version.txt b/version.txt
index 1cc5f65..8cfbc90 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-1.1.0
\ No newline at end of file
+1.1.1
\ No newline at end of file
diff --git a/zh_aht.c b/zh_aht.c
index 70cfb1a..387d82f 100644
--- a/zh_aht.c
+++ b/zh_aht.c
@@ -3,6 +3,7 @@
 #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.
@@ -32,11 +33,11 @@ esp_err_t zh_aht_init(const zh_aht_init_config_t *config)
 #ifndef CONFIG_IDF_TARGET_ESP8266
     i2c_device_config_t aht_config = {
         .dev_addr_length = I2C_ADDR_BIT_LEN_7,
-        .device_address = _init_config.i2c_address,
+        .device_address = I2C_ADDRESS,
         .scl_speed_hz = 100000,
     };
     i2c_master_bus_add_device(_init_config.i2c_handle, &aht_config, &_aht_handle);
-    if (i2c_master_probe(_init_config.i2c_handle, _init_config.i2c_address, 1000 / portTICK_PERIOD_MS) != ESP_OK)
+    if (i2c_master_probe(_init_config.i2c_handle, I2C_ADDRESS, 1000 / portTICK_PERIOD_MS) != ESP_OK)
     {
         ESP_LOGE(TAG, "AHT initialization fail. Sensor not connected or not responded.");
         return ESP_ERR_NOT_FOUND;
@@ -48,7 +49,7 @@ esp_err_t zh_aht_init(const zh_aht_init_config_t *config)
 #ifdef CONFIG_IDF_TARGET_ESP8266
     i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
     i2c_master_start(i2c_cmd_handle);
-    i2c_master_write_byte(i2c_cmd_handle, _init_config.i2c_address << 1 | I2C_MASTER_WRITE, true);
+    i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_WRITE, true);
     i2c_master_write_byte(i2c_cmd_handle, command, true);
     i2c_master_stop(i2c_cmd_handle);
     esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);
@@ -64,7 +65,7 @@ esp_err_t zh_aht_init(const zh_aht_init_config_t *config)
 #ifdef CONFIG_IDF_TARGET_ESP8266
     i2c_cmd_handle = i2c_cmd_link_create();
     i2c_master_start(i2c_cmd_handle);
-    i2c_master_write_byte(i2c_cmd_handle, _init_config.i2c_address << 1 | I2C_MASTER_READ, true);
+    i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_READ, true);
     i2c_master_read_byte(i2c_cmd_handle, &sensor_data, I2C_MASTER_NACK);
     i2c_master_stop(i2c_cmd_handle);
     esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);
@@ -91,7 +92,7 @@ esp_err_t zh_aht_init(const zh_aht_init_config_t *config)
 #ifdef CONFIG_IDF_TARGET_ESP8266
         i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
         i2c_master_start(i2c_cmd_handle);
-        i2c_master_write_byte(i2c_cmd_handle, _init_config.i2c_address << 1 | I2C_MASTER_WRITE, true);
+        i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_WRITE, true);
         i2c_master_write_byte(i2c_cmd_handle, command[0], true);
         i2c_master_write_byte(i2c_cmd_handle, command[1], true);
         i2c_master_write_byte(i2c_cmd_handle, command[2], true);
@@ -131,7 +132,7 @@ esp_err_t zh_aht_read(float *humidity, float *temperature)
 #ifdef CONFIG_IDF_TARGET_ESP8266
     i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
     i2c_master_start(i2c_cmd_handle);
-    i2c_master_write_byte(i2c_cmd_handle, _init_config.i2c_address << 1 | I2C_MASTER_WRITE, true);
+    i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_WRITE, true);
     i2c_master_write_byte(i2c_cmd_handle, command[0], true);
     i2c_master_write_byte(i2c_cmd_handle, command[1], true);
     i2c_master_write_byte(i2c_cmd_handle, command[2], true);
@@ -150,7 +151,7 @@ esp_err_t zh_aht_read(float *humidity, float *temperature)
 #ifdef CONFIG_IDF_TARGET_ESP8266
     i2c_cmd_handle = i2c_cmd_link_create();
     i2c_master_start(i2c_cmd_handle);
-    i2c_master_write_byte(i2c_cmd_handle, _init_config.i2c_address << 1 | I2C_MASTER_READ, true);
+    i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_READ, true);
     for (uint8_t i = 0; i < sizeof(sensor_data); ++i)
     {
         i2c_master_read_byte(i2c_cmd_handle, &sensor_data[i], i == (sizeof(sensor_data) - 1) ? I2C_MASTER_NACK : I2C_MASTER_ACK);
@@ -171,7 +172,7 @@ esp_err_t zh_aht_read(float *humidity, float *temperature)
         ESP_LOGE(TAG, "AHT read fail. Timeout exceeded.");
         return ESP_ERR_TIMEOUT;
     }
-    if (_init_config.sensor_type != ZH_AHT1X)
+    if (sensor_data[6] != 0x00 || sensor_data[6] != 0xFF)
     {
         if (_calc_crc(sensor_data, I2C_MAX_DATA_SIZE - 1) != sensor_data[6])
         {
@@ -198,7 +199,7 @@ esp_err_t zh_aht_reset(void)
 #ifdef CONFIG_IDF_TARGET_ESP8266
     i2c_cmd_handle_t i2c_cmd_handle = i2c_cmd_link_create();
     i2c_master_start(i2c_cmd_handle);
-    i2c_master_write_byte(i2c_cmd_handle, _init_config.i2c_address << 1 | I2C_MASTER_WRITE, true);
+    i2c_master_write_byte(i2c_cmd_handle, I2C_ADDRESS << 1 | I2C_MASTER_WRITE, true);
     i2c_master_write_byte(i2c_cmd_handle, command, true);
     i2c_master_stop(i2c_cmd_handle);
     esp_err = i2c_master_cmd_begin(_init_config.i2c_port, i2c_cmd_handle, 1000 / portTICK_PERIOD_MS);