diff --git a/zh_dht.c b/zh_dht.c
index 09a69b0..96c8d40 100644
--- a/zh_dht.c
+++ b/zh_dht.c
@@ -35,23 +35,23 @@ esp_err_t zh_dht_init(const zh_dht_init_config_t *config)
 	_init_config = *config;
 	if (_init_config.sensor_pin != 0xFF)
 	{
-		gpio_config_t cfg = {0};
-		cfg.intr_type = GPIO_INTR_DISABLE;
-		cfg.mode = GPIO_MODE_INPUT;
-		cfg.pin_bit_mask = (1ULL << _init_config.sensor_pin);
-		cfg.pull_down_en = GPIO_PULLDOWN_DISABLE;
-		cfg.pull_up_en = GPIO_PULLUP_ENABLE;
-		if (gpio_config(&cfg) != ESP_OK)
+		gpio_config_t one_wire_config = {0};
+		one_wire_config.intr_type = GPIO_INTR_DISABLE;
+		one_wire_config.mode = GPIO_MODE_INPUT;
+		one_wire_config.pin_bit_mask = (1ULL << _init_config.sensor_pin);
+		one_wire_config.pull_down_en = GPIO_PULLDOWN_DISABLE;
+		one_wire_config.pull_up_en = GPIO_PULLUP_ENABLE;
+		if (gpio_config(&one_wire_config) != ESP_OK)
 		{
 			ESP_LOGE(TAG, "DHT initialization fail. Incorrect GPIO number.");
-			return ESP_FAIL;
+			return ESP_ERR_INVALID_ARG;
 		}
+		ESP_LOGI(TAG, "DHT initialization success. 1-wire connection.");
 	}
 	else
 	{
 		// I2C.
 	}
-	ESP_LOGI(TAG, "DHT initialization success.");
 	_is_initialized = true;
 	return ESP_OK;
 }
@@ -69,81 +69,84 @@ esp_err_t zh_dht_read(float *humidity, float *temperature)
 		ESP_LOGE(TAG, "DHT read fail. BH1750 not initialized.");
 		return ESP_ERR_NOT_FOUND;
 	}
-	if (gpio_get_level(_init_config.sensor_pin) != 1)
+	if (_init_config.sensor_pin != 0xFF)
 	{
-		ESP_LOGE(TAG, "DHT read fail. Bus is busy.");
-		return ESP_ERR_INVALID_RESPONSE;
-	}
-	gpio_set_direction(_init_config.sensor_pin, GPIO_MODE_OUTPUT);
-	gpio_set_level(_init_config.sensor_pin, 0);
-	vTaskDelay(10 / portTICK_PERIOD_MS);
-	gpio_set_level(_init_config.sensor_pin, 1);
-	gpio_set_direction(_init_config.sensor_pin, GPIO_MODE_INPUT);
-	uint8_t time = 0;
-	while (gpio_get_level(_init_config.sensor_pin) == 1)
-	{
-		if (time > MASTER_RELEASE_MAX_DURATION)
+		if (gpio_get_level(_init_config.sensor_pin) != 1)
 		{
-			ESP_LOGE(TAG, "DHT read fail. Timeout exceeded.");
-			return ESP_ERR_TIMEOUT;
+			ESP_LOGE(TAG, "DHT read fail. Bus is busy.");
+			return ESP_ERR_INVALID_RESPONSE;
 		}
-		++time;
-		esp_delay_us(1);
-	}
-	time = 0;
-	while (gpio_get_level(_init_config.sensor_pin) == 0)
-	{
-		if (time > RESPONSE_MAX_DURATION)
+		gpio_set_direction(_init_config.sensor_pin, GPIO_MODE_OUTPUT);
+		gpio_set_level(_init_config.sensor_pin, 0);
+		vTaskDelay(10 / portTICK_PERIOD_MS);
+		gpio_set_level(_init_config.sensor_pin, 1);
+		gpio_set_direction(_init_config.sensor_pin, GPIO_MODE_INPUT);
+		uint8_t time = 0;
+		while (gpio_get_level(_init_config.sensor_pin) == 1)
 		{
-			ESP_LOGE(TAG, "DHT read fail. Timeout exceeded.");
-			return ESP_ERR_TIMEOUT;
+			if (time > MASTER_RELEASE_MAX_DURATION)
+			{
+				ESP_LOGE(TAG, "DHT read fail. Timeout exceeded.");
+				return ESP_ERR_TIMEOUT;
+			}
+			++time;
+			esp_delay_us(1);
 		}
-		++time;
-		esp_delay_us(1);
-	}
-	time = 0;
-	while (gpio_get_level(_init_config.sensor_pin) == 1)
-	{
-		if (time > RESPONSE_MAX_DURATION)
+		time = 0;
+		while (gpio_get_level(_init_config.sensor_pin) == 0)
 		{
-			ESP_LOGE(TAG, "DHT read fail. Timeout exceeded.");
-			return ESP_ERR_TIMEOUT;
+			if (time > RESPONSE_MAX_DURATION)
+			{
+				ESP_LOGE(TAG, "DHT read fail. Timeout exceeded.");
+				return ESP_ERR_TIMEOUT;
+			}
+			++time;
+			esp_delay_us(1);
 		}
-		++time;
-		esp_delay_us(1);
-	}
-	uint8_t dht_data[DATA_SIZE / 8] = {0};
-	uint8_t byte_index = 0;
-	uint8_t bit_index = 7;
-	for (uint8_t i = 0; i < 40; ++i)
-	{
-		bool bit = 0;
-		if (_read_bit(&bit) != ESP_OK)
+		time = 0;
+		while (gpio_get_level(_init_config.sensor_pin) == 1)
 		{
-			ESP_LOGE(TAG, "DHT read fail. Timeout exceeded.");
-			return ESP_ERR_TIMEOUT;
+			if (time > RESPONSE_MAX_DURATION)
+			{
+				ESP_LOGE(TAG, "DHT read fail. Timeout exceeded.");
+				return ESP_ERR_TIMEOUT;
+			}
+			++time;
+			esp_delay_us(1);
 		}
-		dht_data[byte_index] |= (bit << bit_index);
-		if (bit_index == 0)
+		uint8_t dht_data[DATA_SIZE / 8] = {0};
+		uint8_t byte_index = 0;
+		uint8_t bit_index = 7;
+		for (uint8_t i = 0; i < 40; ++i)
 		{
-			bit_index = 7;
-			++byte_index;
+			bool bit = 0;
+			if (_read_bit(&bit) != ESP_OK)
+			{
+				ESP_LOGE(TAG, "DHT read fail. Timeout exceeded.");
+				return ESP_ERR_TIMEOUT;
+			}
+			dht_data[byte_index] |= (bit << bit_index);
+			if (bit_index == 0)
+			{
+				bit_index = 7;
+				++byte_index;
+			}
+			else
+			{
+				--bit_index;
+			}
 		}
-		else
+		if (dht_data[4] != ((dht_data[0] + dht_data[1] + dht_data[2] + dht_data[3])))
 		{
-			--bit_index;
+			ESP_LOGE(TAG, "DHT read fail. Invalid CRC.");
+			return ESP_ERR_INVALID_CRC;
+		}
+		*humidity = (dht_data[0] << 8 | dht_data[1]) / 10.0;
+		*temperature = ((dht_data[2] & 0x7F) << 8 | dht_data[3]) / 10.0;
+		if ((dht_data[2] & 0x80) != 0)
+		{
+			*temperature *= -1;
 		}
-	}
-	if (dht_data[4] != ((dht_data[0] + dht_data[1] + dht_data[2] + dht_data[3])))
-	{
-		ESP_LOGE(TAG, "DHT read fail. Invalid CRC.");
-		return ESP_ERR_INVALID_CRC;
-	}
-	*humidity = (dht_data[0] << 8 | dht_data[1]) / 10.0;
-	*temperature = ((dht_data[2] & 0x7F) << 8 | dht_data[3]) / 10.0;
-	if ((dht_data[2] & 0x80) != 0)
-	{
-		*temperature *= -1;
 	}
 	ESP_LOGI(TAG, "DHT read success.");
 	return ESP_OK;