(Exercise) Code Homework no.01

Homework Questions

Make sure that you upload each code example to the respective area in the spreadsheet. Create a separate .py for each exercise. Please make the files are named clearly, they need at least, your name, the #, and the exercise number so something like “SantiagoBenjamin__WU01__E01.py” would be something I might name my files, but you’re not obligated to use this exact syntax.

  1. Make all neopixels light up red.

  2. Make all neopixels light up green.

  3. Make all neopixels light up blue.

  4. Make neopixels #7 and #1 light up a color that looks like purple or pink. (note that this is not a trick question that I am assuming the first neopixel is #0 and the last one would be #9)

  5. Write a piece of code that does the following:

    • Make all the neopixels light up a color of your choice
    • wait a little bit
    • turn all the lights off
    • wait a little bit
    • light up all the neopixels another arbitrary color
    • wait a little bit
    • then turn them off again
    • and then wait.

  6. The code below doesn’t work properly, make it work correctly (note that all the neopixels should light up in sequence). Add a comment (# in front of the line to write a human language comment) about what line was causing the issue and another comment identifying what you did to fix it.

from adafruit_circuitplayground import cp
import time

while True:
    cp.pixels[1] = (255,255,255)
    time.sleep(0.1)
    cp.pixels.fill((0,0,0))

    cp.pixels[2] = (255,255,255)
    time.sleep(0.1)
    cp.pixels.fill((0,0,0))

    cp.pixels[3] = (255,255,255)
    time.sleep(0.1)
    cp.pixels.fill((0,0,0))

    cp.pixels[4] = (255,255,255)
    time.sleep(0.1)
    cp.pixels.fill((0,0,0))

    cp.pixels[5] = (255,255,255)
    time.sleep(0.1)
    cp.pixels.fill((0,0,0))

    cp.pixels[6] = (255,255,255)
    time.sleep(0.1)
    cp.pixels.fill((0,0,0))

    cp.pixels[7] = (255,255,255)
    time.sleep(0.1)
    cp.pixels.fill((0,0,0))

    cp.pixels[8] = (255,255,255)
    time.sleep(0.1)
    cp.pixels.fill((0,0,0))

    cp.pixels[9] = (255,255,255)
    time.sleep(0.1)
    cp.pixels.fill((0,0,0))

    cp.pixels[10] = (255,255,255)
    time.sleep(0.1)
    cp.pixels.fill((0,0,0))

  1. Write code that does the following:

    • Make neopixel #0 light up a color that looks like yellow or orange
    • wait
    • turn neopixel #0 off
    • wait
    • light up neopixel #4 a color that looks like sky blue
    • wait
    • turn neopixel #4 off
    • wait
    • and then light up neopixel #9 a color that looks like pink
    • wait
    • then turn neopixel #9 off
    • wait

  2. Make each neopixel light up in sequence (0 -9) any color you want and then turn off in reverse sequence. (note that this is also not a trick question, you are welcome to use for loops, but not expected to)