Please ensure all dependencies are available on the CircuitPython filesystem. This is easily achieved by downloading the Adafruit library and driver bundle <https://circuitpython.org/libraries>_.

Installing from PyPI

.. note:: This library is not available on PyPI yet. Install documentation is included as a standard element. Stay tuned for PyPI availability!

On supported GNU/Linux systems like the Raspberry Pi, you can install the driver locally from PyPI <https://pypi.org/project/adafruit-circuitpython-ble_magic_light/>_. To install for current user:

.. code-block:: shell

pip3 install adafruit-circuitpython-ble-magic-light

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

.. code-block:: shell

sudo pip3 install adafruit-circuitpython-ble-magic-light

To install in a virtual environment in your current project:

.. code-block:: shell

mkdir project-name && cd project-name
python3 -m venv .venv
source .venv/bin/activate
pip3 install adafruit-circuitpython-ble-magic-light

Usage Example

.. code:: python

"""This demo connects to a magic light and has it do a colorwheel."""
import adafruit_ble
import _bleio

from adafruit_ble.advertising.standard import ProvideServicesAdvertisement
from adafruit_ble_magic_light import MagicLightService

# CircuitPython <6 uses its own ConnectionError type. So, is it if available. Otherwise,
# the built in ConnectionError is used.
connection_error = ConnectionError
if hasattr(_bleio, "ConnectionError"):
    connection_error = _bleio.ConnectionError

def find_connection():
    for connection in radio.connections:
        if MagicLightService not in connection:
            continue
        return connection, connection[MagicLightService]
    return None, None

# Start advertising before messing with the display so that we can connect immediately.
radio = adafruit_ble.BLERadio()

active_connection, pixels = find_connection()
current_notification = None
app_icon_file = None
while True:
    if not active_connection:
        print("Scanning for Magic Light")
        for scan in radio.start_scan(ProvideServicesAdvertisement):
            if MagicLightService in scan.services:
                active_connection = radio.connect(scan)
                try:
                    pixels = active_connection[MagicLightService]
                except connection_error:
                    print("disconnected")
                    continue
                break
        radio.stop_scan()

    i = 0
    while active_connection.connected:
        pixels[0] = colorwheel(i % 256)
        i += 1

    active_connection = None

Documentation

API documentation for this library can be found on Read the Docs <https://docs.circuitpython.org/projects/ble_magic_light/en/latest/>_.

For information on building library documentation, please check out this guide <https://learn.adafruit.com/creating-and-sharing-a-circuitpython-library/sharing-our-docs-on-readthedocs#sphinx-5-1>_.

Contributing

Contributions are welcome! Please read our Code of Conduct <https://github.com/adafruit/Adafruit_CircuitPython_BLE_Magic_Light/blob/main/CODE_OF_CONDUCT.md>_ before contributing to help this project stay welcoming.

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