This library will allow you to control the LEDs and read button presses on the Adafruit Trellis Board. It will work with a single Trellis board, or with a matrix of up to 8 Trellis boards.
For more details, see the Adafruit Trellis Learn Guide.
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.
See examples/trellis_simpletest.py for full usage example.
import time import busio from board import SCL, SDA from adafruit_trellis import Trellis # Create the I2C interface i2c = busio.I2C(SCL, SDA) # Create a Trellis object for each board trellis = Trellis(i2c) # 0x70 when no I2C address is supplied # Turn on every LED print('Turning all LEDs on...') trellis.led.fill(True) time.sleep(2) # Turn off every LED print('Turning all LEDs off...') trellis.led.fill(False) time.sleep(2)
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-trellis --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.