ambient_lighting.py

"""
* button_a will always increase values and button_b will always decrease values
* press both the button at the same time to change the color between r,g and b
* look at the red led (located just beside the micro usb port) if it's glowing
then the current color is red and you can change the values using buttons. If
the red led is blinking then the current color is green and if the led is not
glowing anymore then the color is blue.
* you can use the switch to control brightness. Just turn on the switch then
button_a will increase brightness and button_b will decrease it.
"""

from adafruit_circuitplayground.express import cpx
from time import sleep
r,g,b = 0,0,0
mode = ['r','g','b']
curr = 'r'
counter=0
bright = 1.0
while True:
    cpx.pixels.fill((r,g,b))
    if cpx.button_a and cpx.button_b:
        counter += 1
        curr = mode[counter % 3]
        sleep(0.2)

    if curr == 'r':
        if cpx.button_a:
            r += 5

        if cpx.button_b:
            r -= 5

        if r > 255:
            r = 255

        if r < 0:
            r = 0

        cpx.red_led = 1
        sleep(0.05)

    if curr == 'g':
        if cpx.button_a:
            g += 5

        if cpx.button_b:
            g -= 5

        if g > 255:
            g = 255

        if g < 0:
            g = 0

        cpx.red_led = 1
        sleep(0.05)
        cpx.red_led = 0

    if curr == 'b':
        if cpx.button_a:
            b += 5

        if cpx.button_b:
            b -= 5

        if b > 255:
            b = 255

        if b < 0:
            b = 0

        sleep(0.05)

    if cpx.switch == True:
        while cpx.switch == True:
            if cpx.button_a:
                bright += 0.1
                if bright > 1.0:
                    bright = 1.0

            if cpx.button_b:
                bright -= 0.1
                if bright < 0.0:
                    bright = 0.0

            cpx.pixels.brightness = bright
            sleep(0.1)

    sleep(0.05)