FB Color LED

ドライバのインストール

JupyterlabのTerminalを起動しドライバをインストールします。

pip3 install adafruit-circuitpython-neopixel-spi

サンプルコード

https://github.com/adafruit/Adafruit_CircuitPython_NeoPixel_SPI/blob/main/examples/neopixel_spi_simpletest.py

import board
import neopixel_spi

pixels = neopixel_spi.NeoPixel_SPI(board.SPI(), 10)
pixels.fill(0x00ffff)

# SPDX-FileCopyrightText: 2021 ladyada for Adafruit Industries
# SPDX-License-Identifier: MIT

import time
import board
import neopixel_spi as neopixel

NUM_PIXELS = 10
PIXEL_ORDER = neopixel.GRB
COLORS = (0xFF0000, 0x00FF00, 0x0000FF)
DELAY = 0.1

spi = board.SPI()

pixels = neopixel.NeoPixel_SPI(
    spi, NUM_PIXELS, pixel_order=PIXEL_ORDER, auto_write=False
)

while True:
    for color in COLORS:
        for i in range(NUM_PIXELS):
            pixels[i] = color
            pixels.show()
            time.sleep(DELAY)
            pixels.fill(0)