3. Sleep

The microbit can be paused using sleep.

3.1. Sleep in milliseconds

sleep(n)

Wait for n milliseconds.

n can be an integer or a decimal (floating point number).

1000 milliseconds is one second.

Use: sleep(1000) will pause the program for one second.

from microbit import *

sleep(1000)

Sleeps are often used after displaying text and images to have a pause before other actions.

A 1000ms sleep has been placed after each scrolled text below.

from microbit import *

while True:
    display.scroll('I like', delay=60)
    sleep(1000)
    display.scroll('school', delay=120)
    sleep(1000)

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Questions

Use the example code above for the questions below.

1. Make the first sleep half a second.

2. Make the second sleep a quarter of a second.

3. Make the first sleep 2 seconds and the second sleep 200ms.

Q1

Make the first sleep half a second.

from microbit import *

while True:
    display.scroll('I like', delay=60)
    sleep(500)
    display.scroll('school', delay=120)
    sleep(1000)

Q2

Make the second sleep a quarter of a second.

from microbit import *

while True:
    display.scroll('I like', delay=60)
    sleep(1000)
    display.scroll('school', delay=120)
    sleep(250)

Q3

Make the first sleep 2 seconds and the second sleep 200ms.

from microbit import *

while True:
    display.scroll('I like', delay=60)
    sleep(2000)
    display.scroll('school', delay=120)
    sleep(200)