adafruit-circuitpython-ble-magic-light 0.9.20

简介

为Magic Light BLE RGB灯泡提供的BLE服务。在亚马逊 这里 可用。

依赖项

此驱动程序依赖于

• Adafruit CircuitPython

请确保所有依赖项都可在CircuitPython文件系统中使用。这可以通过下载 Adafruit库和驱动程序包 来轻松实现。

从PyPI安装

在支持GNU/Linux系统（如树莓派）上，您可以从PyPI 安装此驱动程序。为当前用户安装

pip3 install adafruit-circuitpython-ble-magic-light

为全局安装（在某些情况下可能需要）

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

在当前项目中的虚拟环境中安装

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

使用示例

"""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

文档

此库的API文档可在 Read the Docs 上找到。

有关构建库文档的信息，请参阅 本指南。

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