Signal Input/Output

MCP23017 I2C Port expander library.
Support all MCP23017 features, including interrupts. Allows full control over the chip registers.

Author: Bertrand Lemasle

Maintainer: Bertrand Lemasle

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.