Skip to content
CircuitPython driver for the TCA9548A I2C Multiplexer.
Python
Branch: master
Clone or download
Latest commit c5617b7 Aug 6, 2019
Permalink
Type Name Latest commit message Commit time
Failed to load latest commit information.
docs PyPi setup. Oct 2, 2018
examples travis kick Aug 14, 2018
.gitignore PyPi setup. Oct 2, 2018
.pylintrc code review updates Aug 15, 2018
.readthedocs.yml
.travis.yml install req.txt fix Oct 2, 2018
CODE_OF_CONDUCT.md
LICENSE added working code Aug 14, 2018
README.rst change 'travis-ci.org' to 'travis-ci.com' Dec 21, 2018
adafruit_tca9548a.py lint Aug 6, 2019
requirements.txt
setup.py PyPi setup. Oct 2, 2018

README.rst

Introduction

Documentation Status Discord Build Status

CircuitPython driver for the TCA9548A I2C Multiplexer.

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.

Usage Example

# This example shows using two TSL2491 light sensors attached to TCA9548A channels 0 and 1.
# Use with other I2C sensors would be similar.
import time
import board
import busio
import adafruit_tsl2591
import adafruit_tca9548a

# Create I2C bus as normal
i2c = busio.I2C(board.SCL, board.SDA)

# Create the TCA9548A object and give it the I2C bus
tca = adafruit_tca9548a.TCA9548A(i2c)

# For each sensor, create it using the TCA9548A channel instead of the I2C object
tsl1 = adafruit_tsl2591.TSL2591(tca[0])
tsl2 = adafruit_tsl2591.TSL2591(tca[1])

# Loop and profit!
while True:
    print(tsl1.lux, tsl2.lux)
    time.sleep(0.1)

Contributing

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

Building locally

Zip release files

To build this library locally you'll need to install the circuitpython-build-tools package.

python3 -m venv .env
source .env/bin/activate
pip install circuitpython-build-tools

Once installed, make sure you are in the virtual environment:

source .env/bin/activate

Then run the build:

circuitpython-build-bundles --filename_prefix adafruit-circuitpython-tca9548a --library_location .

Sphinx documentation

Sphinx is used to build the documentation based on rST files and comments in the code. First, install dependencies (feel free to reuse the virtual environment from above):

python3 -m venv .env
source .env/bin/activate
pip install Sphinx sphinx-rtd-theme

Now, once you have the virtual environment activated:

cd docs
sphinx-build -E -W -b html . _build/html

This will output the documentation to docs/_build/html. Open the index.html in your browser to view them. It will also (due to -W) error out on any warning like Travis will. This is a good way to locally verify it will pass.

You can’t perform that action at this time.