CircuitPython driver for the TCA9548A I2C Multiplexer.
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.
# 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) tsl2 = adafruit_tsl2591.TSL2591(tca) # Loop and profit! while True: print(tsl1.lux, tsl2.lux) time.sleep(0.1)
Contributions are welcome! Please read our Code of Conduct before contributing to help this project stay welcoming.
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:
Then run the build:
circuitpython-build-bundles --filename_prefix adafruit-circuitpython-tca9548a --library_location .
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.