Signal Input/Output

Arduino library for SPI MCP23S17 16 channel port expander 16 IO-lines
setPolarity, setPullup

Author: Rob Tillaart

Maintainer: Rob Tillaart

Read the documentation


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.