Python library for PCF8574 GPIO expander
This driver depends on:
Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle or individual libraries can be installed using circup.
Designed for use with the Adafruit PCF8574 GPIO expander breakout board.
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-pcf8574
To install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-pcf8574
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-pcf8574
Installing to a Connected CircuitPython Device with Circup¶
Make sure that you have
circup installed in your Python environment.
Install it with the following command if necessary:
pip3 install circup
circup installed and your CircuitPython device connected use the
following command to install:
circup install pcf8574
Or the following command to update an existing version:
Example usage of the library can be found in the
API documentation for this library can be found on Read the Docs.
For information on building library documentation, please check out this guide.
Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.