from neopixel import Neopixel
from time import sleep
NUMBER_PIXELS = 2
STATE_MACHINE = 0
LED_PIN = 11
strip = Neopixel(NUMBER_PIXELS, STATE_MACHINE, LED_PIN, "GRB")
while True:
# blink red
for i in range(0, NUMBER_PIXELS):
strip.set_pixel(i, (255, 0, 0))
strip.show()
sleep(.5)
# blink green
for i in range(0, NUMBER_PIXELS):
strip.set_pixel(i, (0, 255, 0))
strip.show()
sleep(.5)
# blink blue
for i in range(0, NUMBER_PIXELS):
strip.set_pixel(i, (0, 0, 255))
strip.show()
sleep(.5)
for i in range(0, NUMBER_PIXELS):
strip.set_pixel(i, (0, 0, 0))
strip.show()
import machine, neopixel, time
# Set the pin number and number of pixels
from neopixel import Neopixel
NEOPIXEL_PIN = 0
NUMBER_PIXELS = 144
strip = Neopixel(NUMBER_PIXELS, 0, 0, "GRB")
# blink the first pixel red
while True:
# set pixel 0 to be red
strip.set_pixel(0,(255,0,0))
strip.show()
time.sleep(0.5)
# turn pixel 0 off
strip.set_pixel(0, (0,0,0))
# set pixel 1 to be green
strip.set_pixel(1,(0,255,0))
strip.show()
time.sleep(0.5)
# turn pixel 0 off
strip.set_pixel(1, (0,0,0))
# set pixel 2 to be blue
strip.set_pixel(2,(0,0,255))
strip.show()
time.sleep(0.5)
# turn pixel 0 off
strip.set_pixel(2, (0,0,0))
import time
from neopixel import Neopixel
# https://github.com/blaz-r/pi_pico_neopixel
numpix = 12
strip = Neopixel(numpix, 0, 0, "GRB")
# strip.brightness(50)
red = (255, 0, 0)
orange = (255, 165, 0)
yellow = (255, 255, 0)
green = (0, 255, 0)
blue = (0, 0, 255)
indigo = (75, 0, 130)
violet = (138, 43, 226)
colors = (red, orange, yellow, green, blue, indigo, violet)
strip.brightness(255)
while True:
for color in colors:
for i in range(numpix):
strip.set_pixel(i, color)
strip.show()
time.sleep(0.1)
import machine, neopixel
from utime import sleep
from neopixel import Neopixel
NEOPIXEL_PIN = 16
NUMBER_PIXELS = 10
strip = Neopixel(NUMBER_PIXELS, 0, NEOPIXEL_PIN, "GRB")
strip.brightness(100)
def wheel(pos):
# Input a value 0 to 255 to get a color value.
# The colours are a transition r - g - b - back to r.
if pos < 0 or pos > 255:
return (0, 0, 0)
if pos < 85:
return (255 - pos * 3, pos * 3, 0)
if pos < 170:
pos -= 85
return (0, 255 - pos * 3, pos * 3)
pos -= 170
return (pos * 3, 0, 255 - pos * 3)
def rainbow_cycle(wait):
for j in range(255):
for i in range(NUMBER_PIXELS):
rc_index = (i * 256 // NUMBER_PIXELS) + j
pixels[i] = wheel(rc_index & 255)
pixels.write()
from neopixel import Neopixel from machine import Pin from random import choice from time import sleep np = Neopixel(Pin(4), 8) def val_gen(): yield choice(range(255)) def color_gen(): yield tuple(next(val_gen()) for i in range(3)) while True: np[choice(range(8))] = next(color_gen()) sleep(0.5)
import time
from neopixel import Neopixel
numpix = 58
pixels = Neopixel(numpix, 0, 1, "RGB")
yellow = (255, 100, 0)
orange = (255, 50, 0)
green = (0, 255, 0)
blue = (0, 0, 255)
red = (255, 0, 0)
color0 = red
pixels.brightness(50)
pixels.fill(orange)
pixels.set_pixel_line_gradient(3, 13, green, blue)
pixels.set_pixel_line(14, 16, red)
pixels.set_pixel(20, (255, 255, 255))
while True:
if color0 == red:
color0 = yellow
color1 = red
else:
color0 = red
color1 = yellow
pixels.set_pixel(0, color0)
pixels.set_pixel(1, color1)
pixels.show()
time.sleep(0.1)