CircuitPython_RGBLED

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CircuitPython driver for RGB LEDs. Works with native microcontroller pins, Adafruit Blinka, or the PCA9685 PWM driver.

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-rgbled

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

sudo pip3 install adafruit-circuitpython-rgbled

To install in a virtual environment in your current project:

mkdir project-name && cd project-name
python3 -m venv .env
source .env/bin/activate
pip3 install adafruit-circuitpython-rgbled

Usage Example

Initialize a common-cathode RGB LED with three PWM-capable pins.

import board
import adafruit_rgbled

# Pin the Red LED is connected to
RED_LED = board.D5

# Pin the Green LED is connected to
GREEN_LED = board.D6

# Pin the Blue LED is connected to
BLUE_LED = board.D7

# Create a RGB LED object
led = adafruit_rgbled.RGBLED(RED_LED, BLUE_LED, GREEN_LED)

Initialize a common-anode RGB LED with three PWM-capable pins

import board
import adafruit_rgbled

# Pin the Red LED is connected to
RED_LED = board.D5

# Pin the Green LED is connected to
GREEN_LED = board.D6

# Pin the Blue LED is connected to
BLUE_LED = board.D7

# Create a RGB LED object
led = adafruit_rgbled.RGBLED(RED_LED, BLUE_LED, GREEN_LED, invert_pwm = True)

Set the RGB LED’s color to a RGB Tuple (Red, Green, Blue).

led.color = (255, 0, 0)

Set the RGB LED’s color to a 24-bit integer (in hex syntax), 0x100000.

led.color = 0x100000

Setting a common-anode RGB LED using a ContextManager:

import board
import adafruit_rgbled
with adafruit_rgbled.RGBLED(board.D5, board.D6, board.D7, invert_pwm = True) as rgb_led:
    rgb_led.color = (0, 255, 0)

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-rgbled --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.

Indices and tables