0.2.4 release

update readme.md (#17)

- update readme.md
- update GitHub actions
- update license 2023

0.2.3 release

add changelog.md, add IO control register functions (#16)

* add changelog.md
* add IO control register functions
* update comments

0.2.2 release

optimize digitalWrite(pin, value) (#14)

0.2.1 release

add SPI class as parameter to constructor (#12)

* add SPI class as parameter to constructor
* add getAddress()
* extend CI build
* add MCP23S17_test_connection.ino

0.2.0 release

fixed a masking bug.

0.1.3 release

fix #6 Compilation Nano33 BLE (#7)

0.1.2 release

new URL (#5)

0.1.1 release

add 16 bit interface (#3)

* add 16 bit interface

0.1.0 release

initial version (experimental)