esp_components/zh_160x_i2c
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doc: updated example

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This commit is contained in:
Alexey Zholtikov
2025-12-28 22:02:47 +03:00
parent dc1f2ed526
commit 41c706d4bb
1 changed files with 13 additions and 35 deletions
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48
README.md
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@@ -54,48 +54,29 @@ One LCD on bus:
#define I2C_PORT (I2C_NUM_MAX - 1) #define I2C_PORT (I2C_NUM_MAX - 1)
#ifndef CONFIG_IDF_TARGET_ESP8266
i2c_master_bus_handle_t i2c_bus_handle = NULL; i2c_master_bus_handle_t i2c_bus_handle = NULL;
#endif
zh_pcf8574_handle_t lcd_160x_handle = {0}; zh_pcf8574_handle_t lcd_160x_handle = {0};
void app_main(void) void app_main(void)
{ {
esp_log_level_set("zh_160x_i2c", ESP_LOG_ERROR); // For ESP8266 first enable "Component config -> Log output -> Enable log set level" via menuconfig. esp_log_level_set("zh_160x_i2c", ESP_LOG_ERROR);
esp_log_level_set("zh_pcf8574", ESP_LOG_ERROR); // For ESP8266 first enable "Component config -> Log output -> Enable log set level" via menuconfig. esp_log_level_set("zh_pcf8574", ESP_LOG_ERROR);
esp_log_level_set("zh_vector", ESP_LOG_ERROR); // For ESP8266 first enable "Component config -> Log output -> Enable log set level" via menuconfig. esp_log_level_set("zh_vector", ESP_LOG_ERROR);
#ifdef CONFIG_IDF_TARGET_ESP8266
i2c_config_t i2c_config = {
.mode = I2C_MODE_MASTER,
.sda_io_num = GPIO_NUM_4, // In accordance with used chip.
.sda_pullup_en = GPIO_PULLUP_ENABLE,
.scl_io_num = GPIO_NUM_5, // In accordance with used chip.
.scl_pullup_en = GPIO_PULLUP_ENABLE,
};
i2c_driver_install(I2C_PORT, i2c_config.mode);
i2c_param_config(I2C_PORT, &i2c_config);
#else
i2c_master_bus_config_t i2c_bus_config = { i2c_master_bus_config_t i2c_bus_config = {
.clk_source = I2C_CLK_SRC_DEFAULT, .clk_source = I2C_CLK_SRC_DEFAULT,
.i2c_port = I2C_PORT, .i2c_port = I2C_PORT,
.scl_io_num = GPIO_NUM_22, // In accordance with used chip. .scl_io_num = GPIO_NUM_22,
.sda_io_num = GPIO_NUM_21, // In accordance with used chip. .sda_io_num = GPIO_NUM_21,
.glitch_ignore_cnt = 7, .glitch_ignore_cnt = 7,
.flags.enable_internal_pullup = true, .flags.enable_internal_pullup = true,
}; };
i2c_new_master_bus(&i2c_bus_config, &i2c_bus_handle); i2c_new_master_bus(&i2c_bus_config, &i2c_bus_handle);
#endif zh_pcf8574_init_config_t config = ZH_PCF8574_INIT_CONFIG_DEFAULT();
zh_pcf8574_init_config_t pcf8574_init_config = ZH_PCF8574_INIT_CONFIG_DEFAULT(); config.i2c_handle = i2c_bus_handle;
#ifdef CONFIG_IDF_TARGET_ESP8266 config.i2c_address = 0x27;
pcf8574_init_config.i2c_port = I2C_PORT; zh_pcf8574_init(&config, &lcd_160x_handle);
#else zh_160x_init(&lcd_160x_handle, ZH_LCD_16X2);
pcf8574_init_config.i2c_handle = i2c_bus_handle;
#endif
pcf8574_init_config.i2c_address = 0x27;
zh_pcf8574_init(&pcf8574_init_config, &lcd_160x_handle);
zh_160x_init(&lcd_160x_handle, ZH_LCD_16X2); // For LCD 16X2.
// zh_160x_init(&lcd_160x_handle, ZH_LCD_16X4); // For LCD 16X4.
for (;;) for (;;)
{ {
zh_160x_set_cursor(&lcd_160x_handle, 0, 0); zh_160x_set_cursor(&lcd_160x_handle, 0, 0);
@@ -103,17 +84,14 @@ void app_main(void)
zh_160x_set_cursor(&lcd_160x_handle, 1, 0); zh_160x_set_cursor(&lcd_160x_handle, 1, 0);
zh_160x_print_char(&lcd_160x_handle, "Hello World!"); zh_160x_print_char(&lcd_160x_handle, "Hello World!");
vTaskDelay(5000 / portTICK_PERIOD_MS); vTaskDelay(5000 / portTICK_PERIOD_MS);
zh_160x_set_cursor(&lcd_160x_handle, 0, 0); // For LCD 16X2. zh_160x_set_cursor(&lcd_160x_handle, 0, 0);
// zh_160x_set_cursor(&lcd_160x_handle, 2, 0); // For LCD 16X4.
zh_160x_print_char(&lcd_160x_handle, "Progress: "); zh_160x_print_char(&lcd_160x_handle, "Progress: ");
for (uint8_t i = 0; i <= 100; ++i) for (uint8_t i = 0; i <= 100; ++i)
{ {
zh_160x_set_cursor(&lcd_160x_handle, 0, 10); // For LCD 16X2. zh_160x_set_cursor(&lcd_160x_handle, 0, 10);
// zh_160x_set_cursor(&lcd_160x_handle, 2, 10); // For LCD 16X4.
zh_160x_print_int(&lcd_160x_handle, i); zh_160x_print_int(&lcd_160x_handle, i);
zh_160x_print_char(&lcd_160x_handle, "%"); zh_160x_print_char(&lcd_160x_handle, "%");
zh_160x_print_progress_bar(&lcd_160x_handle, 1, i); // For LCD 16X2. zh_160x_print_progress_bar(&lcd_160x_handle, 1, i);
// zh_160x_print_progress_bar(&lcd_160x_handle, 3, i); // For LCD 16X4.
vTaskDelay(100 / portTICK_PERIOD_MS); vTaskDelay(100 / portTICK_PERIOD_MS);
} }
vTaskDelay(5000 / portTICK_PERIOD_MS); vTaskDelay(5000 / portTICK_PERIOD_MS);