#include "char_lcd.h" i2c_lcd_pcf8574_handle_t lcd; static const char *TAG = "char_lcd"; void init_char_lcd(void) { lcd_init(&lcd, LCD_ADDR, CHAR_LCD_I2C_NUM); lcd_begin(&lcd, LCD_COLS, LCD_ROWS); lcd_set_backlight(&lcd, 255); ESP_LOGI(TAG, "LCD initialized"); }