espressif/esp_io_expander_tca9554
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ESP IO Expander - TCA9554(A)

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# ESP IO Expander Chip TCA9554(A)

Implementation of the TCA9554 io expander chip with esp_io_expander component.

| Chip             | Communication interface | Component name | Link to datasheet |
| :--------------: | :---------------------: | :------------: | :---------------: |
| TCA9554(A)       | I2C                     | esp_io_expander_tca9554 | [datasheet](https://www.ti.com/lit/gpn/tca9554) |

## 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_tca9554==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_tca9554(1, ESP_IO_EXPANDER_I2C_TCA9554_ADDRESS_000, &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);
```

Links

Supports all targets

License: Apache-2.0

To add this component to your project, run:

idf.py add-dependency "espressif/esp_io_expander_tca9554^1.0.1"

or download archive

Dependencies

  • espressif/esp_io_expander ^1.0.1
  • ESP-IDF >=4.4.2
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    espressif/esp_io_expander_tca9554 version: 1.0.1 |