USB接口处的一个红色LED标为D13 

代码如下

import array
import math
import audiobusio
import board
import neopixel
import pwmio
import time
from adafruit_circuitplayground import cp

while 1:
	cp.red_led = 1

我们还可以尝试下控制灯的闪烁可以用到 time.sleep(1)这个方法来实现

这里辅一张完成图片

板载的炫彩LED是WS2812的rgb灯珠在其中我们可以通过调用neopixel库

来实现这个目标可以参考这个官方网站Adafruit CircuitPython NeoPixel — Adafruit CircuitPython NeoPixel Library 1.0 documentation

我们首先需要对灯珠进行初始化

初始化函数定义如下

classneopixel.NeoPixel(pin: Pin, n: int, *, bpp: int = 3, brightness: float = 1.0, auto_write: bool = True, pixel_order: str = None)[source]¶

A sequence of neopixels.

Parameters:

pin (Pin) – The pin to output neopixel data on.

n (int) – The number of neopixels in the chain

bpp (int) – Bytes per pixel. 3 for RGB and 4 for RGBW pixels.

brightness (float) – Brightness of the pixels between 0.0 and 1.0 where 1.0 is full brightness

auto_write (bool) – True if the neopixels should immediately change when set. If False, show must be called explicitly.

pixel_order (str) – Set the pixel color channel order. GRBW is set by default.

但经过查阅资料了解到python已经封装好了无需自己写驱动直接调用即可这里附上详细代码

import time  # 导入时间模块
from adafruit_circuitplayground import cp

# 定义颜色映射字典，将颜色名称映射到RGB元组
color_mapping = {
    "black": (0, 0, 0),          # 黑色
    "white": (255, 255, 255),    # 白色
    "green": (0, 255, 0),        # 绿色
    "red": (255, 0, 0),          # 红色
    "blue": (0, 0, 255),         # 蓝色
    "cyan": (0, 255, 255),       # 青色
    "magenta": (228, 0, 127),    # 品红色
    "yellow": (255, 150, 0),     # 黄色
}
a = 0
cp.detect_taps = 1
cp.pixels.brightness = 0.05
  # 设置像素的亮度为0.05
pixel_count = 10  # 定义像素数量为10

def scale_range(value):

    return round(value / 320 * 9)

# 定义一个颜色轮函数，根据输入位置返回对应颜色的RGB值
def color_wheel(position):
    # 如果位置不在0到255范围内，返回黑色
    if (position < 0) or (position > 255):
        return color_mapping["black"]
    
    # 根据位置计算颜色值并返回RGB元组
    if position < 85:
        return (int(255 - position * 3), int(position * 3), 0)  # 红-绿渐变
    elif position < 170:
        position -= 85
        return (0, int(255 - (position * 3)), int(position * 3))  # 绿-青渐变
    else:
        position -= 170
    return (int(position * 3), 0, int(255 - position * 3))  # 青-蓝渐变

current_pixel = 0  # 初始化当前像素为0

# 无限循环，用于不断更新LED灯
while True:

    #检查敲击状态
    if cp.tapped:
        cp.red_led = 1
        print("Tapped!")
        a=a+0.01


     # 检查开关状态
    if cp.switch: 
        current_pixel += 1  # 开关开启，当前像素增加1
        if current_pixel > pixel_count - 1:  # 如果当前像素超出范围，重置为0
            current_pixel = 0
    else:
        current_pixel -= 1  # 开关关闭，当前像素减少1
        if current_pixel < 0:  # 如果当前像素小于0，重置为最大值
            current_pixel = pixel_count - 1
    
    if cp.button_b:
        print("lingh+!")
        cp.pixels.brightness = cp.pixels.brightness +0.01
    if cp.button_a:
        cp.pixels.brightness = cp.pixels.brightness -0.01
        print("lingh-!")

    
    time.sleep(a)
    cp.red_led = 0
    print(cp.light)
    for index in range(pixel_count):  # 遍历每个像素
        # 计算当前像素的虹彩颜色
        rainbow_color = color_wheel(255 // pixel_count * ((current_pixel + index) % pixel_count))
        
        # 设置当前像素的颜色，使用tuple生成RGB值
        cp.pixels[index] = tuple(
            int(c * ((pixel_count - (current_pixel + index) % pixel_count)) / pixel_count) for c in rainbow_color
        )
        

按下a按键增加亮度 按下b按键减小亮度中间拨码开关可以控制RGB轮换方向，敲击板子使能加速度传感器会让旋转速度变慢