esp_components/zh_pcf8574
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feat!: removed esp8266 support

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This commit is contained in:
Alexey Zholtikov
2025-11-03 11:02:12 +03:00
parent 8f5727c759
commit e2808d0176
7 changed files with 30 additions and 97 deletions
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44
README.md
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@@ -1,9 +1,8 @@
# ESP32 ESP-IDF and ESP8266 RTOS SDK component for PCF8574(A) 8-bit I/O expander
# ESP32 ESP-IDF component for PCF8574(A) 8-bit I/O expander
## Tested on
1. [ESP8266 RTOS_SDK v3.4](https://docs.espressif.com/projects/esp8266-rtos-sdk/en/latest/index.html#)
2. [ESP32 ESP-IDF v5.4](https://docs.espressif.com/projects/esp-idf/en/release-v5.4/esp32/index.html)
1. [ESP32 ESP-IDF v5.5.1](https://docs.espressif.com/projects/esp-idf/en/v5.5.1/esp32/index.html)
## Features
@@ -19,7 +18,7 @@
## Dependencies
1. [zh_vector](http://git.zh.com.ru/alexey.zholtikov/zh_vector)
1. [zh_vector](http://git.zh.com.ru/esp_components/zh_vector)
## Using
@@ -27,8 +26,8 @@ In an existing project, run the following command to install the components:
```text
cd ../your_project/components
git clone http://git.zh.com.ru/alexey.zholtikov/zh_pcf8574
git clone http://git.zh.com.ru/alexey.zholtikov/zh_vector
git clone http://git.zh.com.ru/esp_components/zh_pcf8574
git clone http://git.zh.com.ru/esp_components/zh_vector
```
In the application, add the component:
@@ -46,10 +45,7 @@ One expander on bus. All GPIO's as output (except P0 - input). Interrupt is enab
#define I2C_PORT (I2C_NUM_MAX - 1)
#ifndef CONFIG_IDF_TARGET_ESP8266
i2c_master_bus_handle_t i2c_bus_handle = NULL;
#endif
zh_pcf8574_handle_t pcf8574_handle = {0};
void zh_pcf8574_event_handler(void *arg, esp_event_base_t event_base, int32_t event_id, void *event_data); // Required only if used input GPIO interrupts.
@@ -67,41 +63,21 @@ void print_gpio_status(const char *message, uint8_t reg)
void app_main(void)
{
esp_log_level_set("zh_pcf8574", ESP_LOG_NONE); // For ESP8266 first enable "Component config -> Log output -> Enable log set level" via menuconfig.
esp_log_level_set("zh_vector", ESP_LOG_NONE); // For ESP8266 first enable "Component config -> Log output -> Enable log set level" via menuconfig.
#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
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, // In accordance with used chip.
.sda_io_num = GPIO_NUM_21, // In accordance with used chip.
.scl_io_num = GPIO_NUM_22,
.sda_io_num = GPIO_NUM_21,
.glitch_ignore_cnt = 7,
.flags.enable_internal_pullup = true,
};
i2c_new_master_bus(&i2c_bus_config, &i2c_bus_handle);
#endif
esp_event_loop_create_default(); // Required only if used input GPIO interrupts.
#ifdef CONFIG_IDF_TARGET_ESP8266
esp_event_handler_register(ZH_PCF8574, ESP_EVENT_ANY_ID, &zh_pcf8574_event_handler, NULL); // Required only if used input GPIO interrupts.
#else
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.
#endif
zh_pcf8574_init_config_t pcf8574_init_config = ZH_PCF8574_INIT_CONFIG_DEFAULT();
#ifdef CONFIG_IDF_TARGET_ESP8266
pcf8574_init_config.i2c_port = I2C_PORT;
#else
pcf8574_init_config.i2c_handle = i2c_bus_handle;
#endif
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.