Circuit Playground Express Led Button Test

gistfile1.txt

# this program detects a button press and lights up a new Led, 2nd button changes colors

from adafruit_circuitplayground.express import cpx, time

cpx.pixels.brightness = 0.3
cpx.pixels.fill((0, 0, 0))


# pick how many colors to use
color_mode = 3


# switch between colors
def one():  # Red
    return (255, 0, 0)
def two():  # Green
    return (0, 255, 0)
def three():  # Blue
    return (0, 0, 255)

def color_switcher(new_color):
    switcher = {
        1: one,
        2: two,
        3: three,
    }
    # get the function from switcher dictionary
    func = switcher.get(new_color)
    return func()

counter = 0
current_color = 0


while True:
    # check the buttons
    if cpx.button_a:
        if counter < 9:
            counter += 1
        else:
            counter = 0
        print("Button A pressed!")
        time.sleep(1)
    elif cpx.button_b:
        if current_color < color_mode:
            current_color += 1
        else:
            current_color = 1
        print("Button B pressed!")
        time.sleep(1)
    # output to LED's
    else:
        print("Current counter = " + str(counter))
        print("Current Color = " + str(current_color))
        time.sleep(.5)
        cpx.pixels.fill = (color_switcher(current_color))

This is really fun. I'm going to fork it and rewrite a few sections so you can see some more Pythonic ways of doing these things. Some of it is easier to read, some of it is just shorter.