Signal Input/Output
Library for MCP23017 I2C based GPIO expanders for Arduino platform supported boards
includes port writing, port reading, pin reading and writing features with simple user friendly commands
Maintainer: ssjha@protonmail.com
This library is compatible with all architectures so you should be able to use it on all the Arduino boards.
To use this library, open the Library Manager in the Arduino IDE and install it from there.