src/adafruit_blinka/microcontroller/pico_u2if/neopixel.py

   1 """NeoPixel write for Pico u2if."""
   2
   3 from .pico_u2if import pico_u2if
   4
   5
   6 def neopixel_write(gpio, buf):
   7     """NeoPixel Writing Function"""
   8
   9     # pad output buffer from 3 bpp to 4 bpp
  10     buffer = []
  11     for i in range(0, len(buf), 3):
  12         buffer.append(0)
  13         buffer.append(buf[i + 2])
  14         buffer.append(buf[i + 1])
  15         buffer.append(buf[i])
  16
  17     pico_u2if.neopixel_write(gpio, buffer)