Sensors
Library for the PCA9536D I2C 4-bit I/O Expander.
This library handles the initialization of the PCA9536 and supports standard pinMode, digitalRead, and digitalWrite functions. This was forked from the SparkFun PCA9536 Arduino Library module. The PCA9536 library itself seems abandoned.
Maintainer: Gavin Hurlbut
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.