TCA9534 8-bit i2c GPIO library

Default address: 0x27

Default speed 400000

scl pin : scl=Pin(9), sda=Pin(8)

Use show_all_registers() to see the current status of the device

Use set_pin(pin) to write pin HIGH

Use clear_pin(pin) to write pin LOW

Use read_pin(pin) as you would expect

Tested
   MicroPython v1.23.0 on 2024-06-02; Generic ESP32S3 module with ESP32S3
   MicroPython v1.23.0 on 2024-06-02; Raspberry Pi Pico with RP2040

output example :