Introduction
CircuitPython driver for 74HC595 shift register.
Dependencies
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.
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-74hc595
To install system-wide (this may be required in some cases):
sudo pip3 install adafruit-circuitpython-74hc595
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-74hc595
Usage Example
import board
import adafruit_74hc595
import busio
import digitalio
import time
spi = busio.SPI(board.SCK, MOSI=board.MOSI)
latch_pin = digitalio.DigitalInOut(board.D5)
sr = adafruit_74hc595.ShiftRegister74HC595(spi, latch_pin)
pin1 = sr.get_pin(1)
while True:
pin1.value = True
time.sleep(1)
pin1.value = False
time.sleep(1)
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.