feat!: main structure of handle changed to double pointer

README.md

@@ -1,4 +1,4 @@
-# ESP32 ESP-IDF component for liquid crystal display module 1602(4)A via I2C connection (PCF8574(A))
+# ESP32 ESP-IDF component for LCD 1602A/1604A via I2C (PCF8574)
 
 ## Wiki
 
@@ -10,41 +10,20 @@
 
 ## SAST Tools
 
-[PVS-Studio](https://pvs-studio.com/pvs-studio/?utm_source=website&utm_medium=github&utm_campaign=open_source) - static analyzer for C, C++, C#, and Java code.
+[PVS-Studio](https://pvs-studio.com/pvs-studio/?utm_source=website&utm_medium=github&utm_campaign=open_source) — static analyzer for C, C++, C#, and Java code.
 
 ## Features
 
-1. Support of 16 LCD 160X on one bus.
-
-## Attention
-
-For correct operation, please enable the following settings in the menuconfig:
-
-```text
-CONFIG_FREERTOS_HZ=1000
-CONFIG_GPIO_CTRL_FUNC_IN_IRAM
-CONFIG_I2C_ISR_IRAM_SAFE
-CONFIG_I2C_MASTER_ISR_HANDLER_IN_IRAM
-```
-
-## Connection
-
-| 1602(4)A | PCF8574 |
-| -------- | ------- |
-|    RS    |   P0    |
-|    E     |   P2    |
-|    D4    |   P4    |
-|    D5    |   P5    |
-|    D6    |   P6    |
-|    D7    |   P7    |
-
-## Dependencies
-
-1. [zh_pcf8574](https://github.com/aZholtikov/zh_pcf8574)
+1. Support for up to 16 LCD 160X displays on one I2C bus.
+2. 4-bit interface mode for efficient data transfer via PCF8574 expander.
+3. Print strings, integers, and floating-point numbers.
+4. Progress bar display with custom characters.
+5. Cursor visibility and blink control.
+6. Row-specific clear operations.
 
 ## Using
 
-In an existing project, run the following command to install the components:
+In an existing project, run the following command to install the component:
 
 ```text
 cd ../your_project/components
@@ -59,57 +38,4 @@ In the application, add the component:
 
 ## Examples
 
-One LCD on bus:
-
-```c
-#include "zh_160x_i2c.h"
-
-#define I2C_PORT (I2C_NUM_MAX - 1)
-
-zh_pcf8574_handle_t lcd_160x_handle = {0};
-
-void app_main(void)
-{
-    esp_log_level_set("zh_160x_i2c", ESP_LOG_ERROR);
-    esp_log_level_set("zh_pcf8574", ESP_LOG_ERROR);
-    esp_log_level_set("zh_vector", ESP_LOG_ERROR);
-    i2c_master_bus_config_t i2c_bus_config = {
-        .clk_source = I2C_CLK_SRC_DEFAULT,
-        .i2c_port = I2C_PORT,
-        .scl_io_num = GPIO_NUM_22,
-        .sda_io_num = GPIO_NUM_21,
-        .glitch_ignore_cnt = 7,
-        .flags.enable_internal_pullup = true,
-    };
-    i2c_master_bus_handle_t i2c_bus_handle = NULL;
-    i2c_new_master_bus(&i2c_bus_config, &i2c_bus_handle);
-    zh_pcf8574_init_config_t config = ZH_PCF8574_INIT_CONFIG_DEFAULT();
-    config.i2c_handle = i2c_bus_handle;
-    config.i2c_address = 0x27;
-    zh_pcf8574_init(&config, &lcd_160x_handle);
-    zh_160x_init(&lcd_160x_handle, ZH_LCD_16X2);
-    for (;;)
-    {
-        zh_160x_on_cursor(&lcd_160x_handle, true);
-        zh_160x_set_cursor(&lcd_160x_handle, 0, 0);
-        zh_160x_print_char(&lcd_160x_handle, "LCD 160X");
-        zh_160x_set_cursor(&lcd_160x_handle, 1, 0);
-        zh_160x_print_char(&lcd_160x_handle, "Hello World!");
-        vTaskDelay(5000 / portTICK_PERIOD_MS);
-        zh_160x_off_cursor(&lcd_160x_handle);
-        zh_160x_set_cursor(&lcd_160x_handle, 0, 0);
-        zh_160x_print_char(&lcd_160x_handle, "Progress: ");
-        for (uint8_t i = 0; i <= 100; ++i)
-        {
-            zh_160x_set_cursor(&lcd_160x_handle, 0, 10);
-            zh_160x_print_int(&lcd_160x_handle, i);
-            zh_160x_print_char(&lcd_160x_handle, "%");
-            zh_160x_print_progress_bar(&lcd_160x_handle, 1, i);
-            vTaskDelay(100 / portTICK_PERIOD_MS);
-        }
-        vTaskDelay(5000 / portTICK_PERIOD_MS);
-        zh_160x_lcd_clear(&lcd_160x_handle);
-        vTaskDelay(5000 / portTICK_PERIOD_MS);
-    }
-}
-```
+See Wiki [EN](WIKI_EN.md#usage-examples) | [RU](WIKI_RU.md#примеры-использования)