Introduction

CircuitPython driver for 74HC165 shift register.

Dependencies

This driver depends on:

• Adafruit CircuitPython

• Bus Device

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 woolseyworkshop-circuitpython-74hc165

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

sudo pip3 install woolseyworkshop-circuitpython-74hc165

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 woolseyworkshop-circuitpython-74hc165

Usage Example

import time
import board
import digitalio
import wws_74hc165

latch_pin = digitalio.DigitalInOut(board.D5)
sr = wws_74hc165.ShiftRegister74HC165(board.SPI(), latch_pin)

pin1 = sr.get_pin(1)

while True:
    print(f"pin 1 = {pin1.value}")
    time.sleep(1)

Also see the Adding Digital I/O To Your CircuitPython Compatible Board: Part 2 - The 74HC165 tutorial on WoolseyWorkshop.com for additional usage information.

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.