Makerspace

Color Wheel

Technically the Blinky project we created with CircuitPython doesn’t do exactly the same thing as the one we previously created with Makecode:

MakeCode Blink

Recall our Python code made use of the cp.red_led property, which toggles the small red D13 LED. To light up any of the 10 larger pixels on the device we make use of the cp.pixels property:

from adafruit_circuitplayground import cp

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

while True:

    # notice how these lines are similar
    cp.pixels[0] = (255, 0, 0)
    cp.pixels[1] = (255, 127, 0)
    cp.pixels[2] = (0, 255, 0)
    cp.pixels[3] = (0, 255, 127)
    cp.pixels[4] = (75, 0, 130)
    cp.pixels[5] = (60, 0, 255)
    cp.pixels[6] = (255, 255, 255)
    cp.pixels[7] = (0, 100, 0)
    cp.pixels[8] = (100, 0, 0)
    cp.pixels[9] = (0, 0, 100)

    # the [] with a number determines which light to turn on
    # and the numbers in () deterine the color!
    # It says how much (red, green, blue) we want.
    # Try changing the numbers!

Challenge Problem

Change your Blinky code from Exercise 1 to use LED 0 instead of D13. Try having it blink yellow instead of red.

References