Driving Lights

3.4. Driving Lights#

../../_images/maqueen_driving_lights.gif

The two “driving” lights on the front of the Maqueen are connected to the micro:bit on:

  • Pin 8 for the left LED, marked as P8

  • in 12 for right LED, marked as P12

This means that we can turn each LED on or off independently.

3.4.1. Digital Write#

The driving lights are either ON or OFF i.e. binary. To perfectly set binary values on the pins of the micro:bit we use:

pinX.write_digital(value)

where:

  • pinX is the pin variable (see below)

  • value is the binary value we wish to set

3.4.2. Controlling LEDs#

Each pin is available as a variable after importing the microbit library. For the LEDs they are pin8 and pin12.

To turn both LEDs ON we use:

pin8.write_digital(1)
pin12.write_digital(1)

To turn both LEDs OFF we use:

pin8.write_digital(0)
pin12.write_digital(0)

You can of course turn them on or off independently.