【得捷电子Follow me第2期】 任务3：控制WS2812B

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【得捷电子Follow me第2期】 任务3：控制WS2812B [复制链接]

 

【得捷电子Follow me第2期】 任务3：控制WS2812B

0x0:准备好板卡链接。导入控制RGB灯的库 adafruit_ws2801.py

板子的RGB灯为

board.NEOPIXEL

只需要使用neopixel库，进行RGB控制该设备即可

按键切换灯颜色，首先创建一个颜色列表，将 颜色RGB值定义

colors = [(0x00, 0x00, 0x00),  # black
          (0xFF, 0x00, 0x00),  # red
          (0x00, 0xFF, 0x00),  # green
          (0x00, 0x00, 0xFF),  # blue
          (0xFF, 0xFF, 0xFF)]  # white

 

创建一个循环，监听按键事件，若按下则颜色+1，采用color 的颜色，这样缩减了代码的大小，使程序逻辑更清晰

屏幕同时显示对应的颜色文字，与之前的显示中文代码类似，不再赘述

0x1:其中代码如下

import time
import board
import neopixel
import digitalio
from adafruit_display_text import bitmap_label
from adafruit_bitmap_font import bitmap_font

# Load the font
font = bitmap_font.load_font("font/DingTalk_ncn_60.pcf")

# Define colors
colors = [(0x00, 0x00, 0x00),  # black
          (0xFF, 0x00, 0x00),  # red
          (0x00, 0xFF, 0x00),  # green
          (0x00, 0x00, 0xFF),  # blue
          (0xFF, 0xFF, 0xFF)]  # white

# Initialize NeoPixel
pixel = neopixel.NeoPixel(board.NEOPIXEL, 1)
pixel.brightness = 0.5

# Initialize the button
button = digitalio.DigitalInOut(board.BUTTON)
button.switch_to_input(pull=digitalio.Pull.UP)

# Initialize text label
text_area = bitmap_label.Label(font, scale=1)
text_area.x = 0
text_area.y = 60

current_color_index = -1

while True:
    # Read the button state
    button_state = not button.value
    
    if button_state:
        # Cycle through colors
        current_color_index = (current_color_index + 1) % len(colors)
        pixel.fill(colors[current_color_index])
        
        # Set the text and color
        text2 = ["black", "red", "green", "blue", "white"][current_color_index]
        text_area.text = text2
        text_area.color = colors[current_color_index]
        board.DISPLAY.show(text_area)
    
    time.sleep(0.1)

显示效果如下：

 

QQ视频20231009222545