micropython esp32s3 neopixel WS2812 LED

NeoPixel WS2812 LED 驱动程序

使用neopixel模块：

代码1：

from machine import Pin
from neopixel import NeoPixel
pin = Pin(48, Pin.OUT) 
np = NeoPixel(pin,1)  
np[0] = (25, 25, 25) 
np.write()

代码2：

from machine import Pin
from neopixel import NeoPixel

pin = Pin(0, Pin.OUT)   # set GPIO0 to output to drive NeoPixels
np = NeoPixel(pin, 8)   # create NeoPixel driver on GPIO0 for 8 pixels
np[0] = (255, 255, 255) # set the first pixel to white
np.write()              # write data to all pixels
r, g, b = np[0]         # get first pixel colour

对于NeoPixel的低级驱动：

import esp
esp.neopixel_write(pin, grb_buf, is800khz)

代码3：

import time

from machine import Pin

from neopixel import NeoPixel

pin = Pin(48, Pin.OUT) 

np = NeoPixel(pin,1)  

np[0] = (25, 25, 25) 

np.write()

time.sleep(1)

np[0] = (125, 25, 25) 

np.write()

time.sleep(1)

np[0] = (25, 125, 25) 

np.write()

time.sleep(1)

np[0] = (25, 25, 125) 

np.write()

time.sleep(1)

np[0] = (50, 50, 50) 

np.write()