boards/shields/adafruit_aw9523/doc/index.rst
.. _adafruit_aw9523:
Adafruit AW9523 GPIO Expander and LED Driver ############################################
Overview
The Adafruit AW9523 GPIO Expander and LED Driver_ provides
16-channel GPIO/LED controller function.
.. figure:: adafruit_aw9523.webp :align: center :alt: Adafruit AW9523
Adafruit AW9523 (Credit: Adafruit)
+--------------------------+------------------------------------------+ | 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.
.. _Adafruit AW9523 GPIO Expander and LED Driver: https://learn.adafruit.com/adafruit-aw9523-gpio-expander-and-led-driver
.. _Awinic AW9523B 16 MULTI-FUNCTION LED DRIVER AND GPIO CONTROLLER WITH I2C INTERFACE: https://doc.awinic.com/doc/202403/deffbf3b-7e7b-4ff6-8e91-fd85e2d845d5.pdf