Script and Tests

This script will test your LED circuits by blinking them on/off together.

Script: led_blink_x2

• If it’s not already connected, connect your micro:bit module to your computer with the USB cable.
• If you do not already have the micro:bit Python Editor open, browse to python.microbit.org in a Google Chrome or Microsoft Edge browser.
• Set the project name field to led_blink_x2.  
• Update your script to match the one below, then click Save.
• Click Send to micro:bit.

# led_blink_x2

from microbit import *

while True:
    pin13.write_digital(1)
    pin14.write_digital(1)
    sleep(500)
    pin13.write_digital(0)
    pin14.write_digital(0)
    sleep(500)

Tests: On/Off Together

• Verify that BOTH LEDs blink on/off once every second.
• Try changing the sleep(500) to sleep(250) in both calls and verify that both LED’s blink in unison, twice as fast.