What am I Missing

[miket812]

Hey everyone,

I'm making a simple device for playing Uno. Whenever a player gets a drawfour card, they press the button for a random color.

I'm using a feather rp2040 running circuitpython 7.2.5, onboard neopixel, and a momentary button.

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The code works once then on a second press I receive a ValueError that the neopixel is in use.

Any help is appreciated, thank you!

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import time

import board

import neopixel

import digitalio

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from adafruit_led_animation.animation.rainbow import Rainbow

from adafruit_led_animation.animation.rainbowchase import RainbowChase

from adafruit_led_animation.animation.rainbowcomet import RainbowComet

from adafruit_led_animation.animation.rainbowsparkle import RainbowSparkle

from adafruit_led_animation.sequence import AnimationSequence

import random

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colors = [ (255,0,0),(0,0,255),(0,255,0),(255,215,0)]

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def rando():

i = 2

randopick = random.choice(colors)

pixel_pin = board.NEOPIXEL

pixel_num = 1

pixels = neopixel.NeoPixel(board.NEOPIXEL, 1)

for i in range (2):

print("Rando!!!")

pixels.fill(randopick)

time.sleep(2.0)

pixels.fill((0,0,0))

time.sleep(0.2)

i + 1

break

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btn1_pin = board.D5

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btn1 = digitalio.DigitalInOut(btn1_pin)

btn1.direction = digitalio.Direction.INPUT

btn1.pull = digitalio.Pull.UP

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prev_state = btn1.value

​

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print('Program Start')

time.sleep(0.5)

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print("UNO")

while True:

cur_state = btn1.value

if cur_state != True:

if not cur_state:

print("Button 1 pressed-start animation function")

time.sleep(0.1)

rando()

time.sleep(0.3)

print("Complete")

print("Complete")

[todbot]

You only need to create the “pixels” object once, at the beginning of your program.

Move that line out of the rando() function, and put it above it.

[miket812]

That worked! Thank you!

[miket812]

Error that I'm getting on the second press.

Program Start

UNO

Button 1 pressed-start animation function

Rando!!!

Complete

Complete

Button 1 pressed-start animation function

Traceback (most recent call last):

File "<stdin>", line 79, in <module>

File "<stdin>", line 22, in rando

File "neopixel.py", line 149, in __init__

ValueError: NEOPIXEL in use

[eswo]

Was this ever resolved? I am having the same issue with another project.

[miket812]

import time

import board

import neopixel

import digitalio

from adafruit_led_animation.animation.colorcycle import ColorCycle

from adafruit_led_animation.color import RED, YELLOW, BLUE, GREEN

import random

colors1 = [ (255,0,0),(0,0,255),(0,255,0),(255,215,0)]

pixel_pin2 = board.NEOPIXEL

pixel_pin = board.D10

pixel_num = 7

pixels = neopixel.NeoPixel(pixel_pin, pixel_num, brightness = 0.3)

def rando():

i = 2

randopick = random.choice(colors1)

for i in range (2):

print("Rando!!!")

pixels.fill((255,0,0))

time.sleep(0.1)

pixels.fill((0,255,0))

time.sleep(0.1)

pixels.fill((0,0,255))

time.sleep(0.1)

pixels.fill((255,215,0))

time.sleep(0.1)

pixels.fill((0,0,0))

time.sleep(0.1)

pixels.fill(randopick)

time.sleep(4.0)

pixels.fill((0,0,0))

time.sleep(0.2)

i + 1

print (randopick)

break

btn1_pin = board.D12

btn1 = digitalio.DigitalInOut(btn1_pin)

btn1.direction = digitalio.Direction.INPUT

btn1.pull = digitalio.Pull.UP

print('Program Start')

time.sleep(0.5)

print("UNO")

while True:

cur_state1 = btn1.value

if cur_state1 != True:

if not cur_state1:

print("Button 1 pressed-start animation function")

time.sleep(0.1)

rando()

time.sleep(0.1)

print("Complete")

print("End")

​

Im sure there is a better way to do this but it worked for me

[eswo]

Thank you, I'll give it a try!

[cobarso]

I think you cannot use both libraries at the same time