Circuit Playground Express Led Button Test

gistfile1-sean.py

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

from adafruit_circuitplayground.express import cpx, time


# pick how many colors to use
color_mode = 6

RED = (255, 0, 0)
GREEN = (0, 255, 0)
BLUE = (0, 0, 255)
BLACK = (0, 0, 0)
YELLOW = (255, 255, 0)
CYAN = (0, 255, 255)
PURPLE = (128, 0, 128)
cpx.pixels.brightness = 0.2
cpx.pixels.fill(BLACK)

def color_switcher(new_color):
    switcher = {
        1: RED,
        2: GREEN,
        3: BLUE,
        4: YELLOW,
        5: CYAN,
        6: PURPLE,
        7: BLACK,
    }
    # get the color from switcher dictionary with yellow as default
    return switcher.get(new_color, (255,255,0))


counter = 0
current_color = 1


while True:
    # check the buttons
    if cpx.button_a:
        # add 1 to counter
        counter += 1
        # use mod to set counter range 0 to 11
        counter %= 11
        print("Button A pressed!")
        time.sleep(.2)
    elif cpx.button_b:
        current_color %= color_mode
        current_color += 1
        print("Button B pressed!")
        time.sleep(.2)
        # next line optional
        #cpx.pixels.fill(BLACK)
    # output to LED's
    else:
        print("Current counter = {}".format(counter))
        print("Current Color = {}".format(current_color))
        time.sleep(.1)
        cpx.pixels[counter:10] = [(BLACK)] * abs(10 - counter)
        cpx.pixels[0:counter] = [(color_switcher(current_color))] * counter