How to do it...

To do this, perform the following steps:

1. Run the following lines of code in the REPL:

>>> from adafruit_circuitplayground.express import cpx
>>> from random import randint
>>> import time
>>> def get_random_color():
...     return (randint(0, 255), randint(0, 255), randint(0, 255))
...          
... 
>>> get_random_color()
(10, 41, 10)

1. Run the following block of code and a 10 second animation of colors should appear around the ring of pixels on the board:

>>> for i in range(10):
...     cpx.pixels[i] = get_random_color()
...     time.sleep(1)
...     
...     
... 
>>> 

1. Next, run the animation for 30 seconds and cycle through all the pixels three times, with a 1-second delay between each light change:

>>> cpx.pixels.fill(0x000000)
>>> for cycle in range(3):
...     for i in range(10):
...         cpx.pixels[i] = get_random_color()
...         time.sleep(1)
...         
...         
... 
>>> 

1. For this final animation, run the animation for five seconds and change all the pixel colors once a second:

>>> cpx.pixels.fill(0x000000)
>>> for i in range(5):
...     cpx.pixels.fill(get_random_color())
...     time.sleep(1)
...     
...     
... 
>>>