pxt-calliope/docs/lessons/smiley/quiz-answers.md

smiley blocks quiz answers

This is the answer key for the smiley quiz.

1. Describe what show LEDs does

A function that will display an image on the LED screen

2. Why is there an extra empty frame after the smiley face?

The extra empty image with show LED creates a blinking smiley, allowing the micro:bit to alternate between showing the smiley and the empty screen.

3. Draw the image created with this code

4. Write the code to make this image