树莓派安装WS281x
时间: 2023-11-29 17:46:22 浏览: 41
树莓派安装WS281x的步骤如下:
1.安装依赖库
```shell
sudo apt-get update
sudo apt-get install build-essential python-dev git scons swig
```
2.下载rpi_ws281x库
```shell
git clone https://github.com/jgarff/rpi_ws281x.git
```
3.编译并安装库
```shell
cd rpi_ws281x
scons
cd python
sudo python setup.py install
```
4.测试WS281x
```python
import time
from neopixel import *
# LED灯带配置
LED_COUNT = 8 # 灯珠数量
LED_PIN = 18 # GPIO引脚
LED_FREQ_HZ = 800000 # LED信号频率
LED_DMA = 10 # DMA通道
LED_BRIGHTNESS = 255 # 亮度
LED_INVERT = False # 翻转信号
LED_CHANNEL = 0 # 通道
# 初始化LED灯带
strip = Adafruit_NeoPixel(LED_COUNT, LED_PIN, LED_FREQ_HZ, LED_DMA, LED_INVERT, LED_BRIGHTNESS, LED_CHANNEL)
strip.begin()
# 设置颜色
def colorWipe(strip, color, wait_ms=50):
for i in range(strip.numPixels()):
strip.setPixelColor(i, color)
strip.show()
time.sleep(wait_ms / 1000.0)
# 显示颜色
colorWipe(strip, Color(255, 0, 0)) # 红色
```