Adafruit AW9523 GPIO Expander and LED Driver

Overview

The Adafruit AW9523 GPIO Expander and LED Driver provides 16-channel GPIO/LED controller function.

Adafruit AW9523 (Credit: Adafruit)

Pin Assignments

Shield Pin	Function
SDA	AW9523B I2C SDA
SCL	AW9523B I2C SCL
INT (Pad on board)	AW9523B Interrupt output [1]
RST (Pad on board)	AW9523B Reset pin [2]

[1]

To receive interrupts, connect the INT pin to the SoC’s GPIO and set the connected GPIO in the int-gpios property in an additional overlay. The INT terminal must be pulled up.

[2]

If you want to control the reset pin from the SoC, connect it to a GPIO on the SoC and define the reset-gpios property in an additional overlay.

Programming

Set --shield adafruit_aw9523 when you invoke west build.