Exercise: Light and Sound

2.11. Exercise: Light and Sound#

  1. Navigate to the MicroPython editor https://python.microbit.org/v/3. If you already have it open, then use that existing window or tab.

  2. Connect your micro:bit using the instructions on the previous page

  3. Enter the following code into the editor

from microbit import *

while True:
    display.clear()

    if button_a.is_pressed():
        display.set_pixel(0, 0, 9)

    if button_b.is_pressed():
        display.set_pixel(4, 0, 9)

    sleep(100)

  1. Flash the code to your micro:bit.

If you get stuck ask a peer or your teacher for help!

Question 1

Change the code so that:

  • When button A is pressed a happy face is shown on the display

  • When button B is pressed a sad face is down on the display

Solution
from microbit import *

while True:
    display.clear()

    if button_a.is_pressed():
        display.show(Image.HAPPY)

    if button_b.is_pressed():
        display.show(Image.SAD)

    sleep(100)
Question 2

Extend your code so that

  • When button A is pressed a happy sound is played

  • When button B is pressed a sad sound is played

You can choose your own sounds!

Solution

Solution is locked

Question 3

Extend your code so that:

  • When button A and B are pressed together the display shows a random image.

  • When button A and B are pressed together 10 times the NYAN music is played. The count is reset afterwards.

Hint

You will need to use the random library https://docs.micropython.org/en/latest/library/random.html

Solution

Solution is locked