esp_components/zh_pcf8574
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doc: update example

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This commit is contained in:
Alexey Zholtikov
2025-11-09 21:38:48 +03:00
parent e5efc03098
commit 157aa7f49b
1 changed files with 6 additions and 6 deletions
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12
README.md
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@@ -76,12 +76,12 @@ void app_main(void)
i2c_new_master_bus(&i2c_bus_config, &i2c_bus_handle);
esp_event_loop_create_default(); // Required only if used input GPIO interrupts.
esp_event_handler_instance_register(ZH_PCF8574, ESP_EVENT_ANY_ID, &zh_pcf8574_event_handler, NULL, NULL); // Required only if used input GPIO interrupts.
zh_pcf8574_init_config_t pcf8574_init_config = ZH_PCF8574_INIT_CONFIG_DEFAULT();
pcf8574_init_config.i2c_handle = i2c_bus_handle;
pcf8574_init_config.i2c_address = 0x38;
pcf8574_init_config.p0_gpio_work_mode = true; // Required only for input GPIO.
pcf8574_init_config.interrupt_gpio = GPIO_NUM_14; // Required only if used input GPIO interrupts.
zh_pcf8574_init(&pcf8574_init_config, &pcf8574_handle);
zh_pcf8574_init_config_t config = ZH_PCF8574_INIT_CONFIG_DEFAULT();
config.i2c_handle = i2c_bus_handle;
config.i2c_address = 0x38;
config.p0_gpio_work_mode = true; // Required only for input GPIO.
config.interrupt_gpio = GPIO_NUM_14; // Required only if used input GPIO interrupts.
zh_pcf8574_init(&config, &pcf8574_handle);
uint8_t reg = 0;
zh_pcf8574_read(&pcf8574_handle, &reg);
print_gpio_status("GPIO status: ", reg);