Introduction

Python library for AW9523 GPIO expander and LED driver

Dependencies

This driver depends on:

• Adafruit CircuitPython
• Bus Device
• Register

Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle.

Installing from PyPI

On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI. To install for current user:

pip3 install adafruit-circuitpython-aw9523

To install system-wide (this may be required in some cases):

sudo pip3 install adafruit-circuitpython-aw9523

To install in a virtual environment in your current project:

mkdir project-name && cd project-name
python3 -m venv .venv
source .venv/bin/activate
pip3 install adafruit-circuitpython-aw9523

Usage Example

import board
import digitalio
import adafruit_aw9523

i2c = board.I2C()
aw = adafruit_aw9523.AW9523(i2c)

led_pin = aw.get_pin(0)  # LED on AW9523 io 0
button_pin = aw.get_pin(1)  # Button on AW io 1

# LED is an output, initialize to high
led_pin.switch_to_output(value=True)
# Button is an input, note internal pull-ups are not supported!
button_pin.direction = digitalio.Direction.INPUT

while True:
    # LED mirrors button pin
    led_pin.value = button_pin.value

Documentation

API documentation for this library can be found on Read the Docs.

For information on building library documentation, please check out this guide.

Contributing

Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.