Signal Input/Output
Arduino library for the Texas Instruments PCF8575C 16-bit I2C I/O expander.
The PCF8575C provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface serial clock (SCL) and serial data (SDA).
Maintainer: Doc Walker
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.