Signal Input/Output

PCA9536 Driver (4-Channel GPIO I2C Expander)
This library contains a complete driver for the PCA9536 exposing all its functionality so that its 4 channels (or IO pins) can be controlled as a single unit or individually in terms of their Mode (INPUT /OUTPUT) and Polarity (NON-INVERTED / INVERTED). The pins' states (LOW / HIGH) can be read (in INPUT mode) or written (in OUTPUT mode).

Author: Nadav Matalon

Maintainer: Nadav Matalon

Read the documentation


This library is compatible with the avr architecture so you should be able to use it on the following Arduino boards:

Compatibility Note

Note: while the library is supposed to compile correctly on these architectures, it might require specific hardware features that may be available only on some boards.


To use this library, open the Library Manager in the Arduino IDE and install it from there.