espressif/esp_io_expander_tca95xx_16bit

uploaded 3 months ago

# ESP IO Expander Chip TCA9539 and TCA9555 [](https://components.espressif.com/components/espressif/esp_io_expander_tca95xx_16bit) Implementation of the TCA9539 and TCA9555 io expander chip with esp_io_expander component. | Chip | Communication interface | Component name | Link to datasheet | | :--------------: | :---------------------: | :---------------------------: | :---------------: | | TCA9539 | I2C | esp_io_expander_tca95xx_16bit | [datasheet](https://www.ti.com/lit/gpn/tca9539) | | TCA9555 | I2C | esp_io_expander_tca95xx_16bit | [datasheet](https://www.ti.com/lit/gpn/tca9555) | ## Add to project Packages from this repository are uploaded to [Espressif's component service](https://components.espressif.com/). You can add them to your project via `idf.py add-dependency`, e.g. ``` idf.py add-dependency esp_io_expander_tca95xx_16bit==1.0.0 ``` Alternatively, you can create `idf_component.yml`. More is in [Espressif's documentation](https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-guides/tools/idf-component-manager.html). ## Example use Creation of the component. ``` esp_io_expander_handle_t io_expander = NULL; esp_io_expander_new_i2c_tca95xx_16bit(1, ESP_IO_EXPANDER_I2C_TCA9539_ADDRESS_00, &io_expander); ``` Set pin 0 and pin 1 with output dircetion and low level: ``` esp_io_expander_set_dir(io_expander, IO_EXPANDER_PIN_NUM_0 | IO_EXPANDER_PIN_NUM_1, IO_EXPANDER_OUTPUT); esp_io_expander_set_level(io_expander, IO_EXPANDER_PIN_NUM_0 | IO_EXPANDER_PIN_NUM_1, 0); ``` Print all pins's status to the log: ``` esp_io_expander_print_state(io_expander); ```