/esp_io_expander_PCAL6416A_16bit

Primary LanguageC

ESP IO Expander Chip PCAL6416A

Implementation of the PCAL6416A expander chip with esp_io_expander component.

Chip Communication interface Component name Link to datasheet
PCAL6416A I2C esp_io_expander_pcax6416a_16bit datasheet

Add to project

Packages from this repository are uploaded to Espressif's component service. You can add them to your project via idf.py add-dependency, e.g.

    idf.py add-dependency esp_io_expander_pcal6416a_16bit==1.0.0

Alternatively, you can create idf_component.yml. More is in Espressif's documentation.

Example use

Creation of the component.

    esp_io_expander_handle_t io_expander = NULL;
    esp_io_expander_new_i2c_pcal6416a_16bit(1, ESP_IO_EXPANDER_I2C_PCAL6416A_ADDRESS_0, &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);