esp_err_t esp_io_expander_new_i2c_ch422g(i2c_port_t i2c_num, uint32_t i2c_address, esp_io_expander_handle_t *handle); * @brief I2C address of the ch422g. Just to keep ...

As the ESPuno Pi Zero also has a PCA9671 on default address 0x20, ensure you set the PGEZ I2C address away from the 0x20. Then update the below PCA_Address. See Wiki ...

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