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• Programming Responses: You will see how coding helps the micro:bit decide
what to do based on the amount of light it detects, connecting what they

learned about light to programming actions.

Observations

In the Sunlight Sensor activity, You will notice:

• When the area around the micro:bit is bright, it shows a smiley face on the
screen.

• When it gets darker, the micro:bit changes to a sad face.
• You will enjoy watching how the micro:bit changes its display based on the

light around it.

Application

Have you ever noticed how street lights turn
on automatically when it gets dark. This is due

to a light sensor. The light sensor detects the
level of sunlight, and when it senses that the
surroundings are getting dim, it automatically

switches the street lights on. As the sun rises
and it gets brighter, the sensor turns the lights off.

eXERCISE

A. Tick ( ) the correct option.

1. What is a micro:bit?

(i) A tiny robot (ii) A small computer

(iii) A battery (iv) A light bulb

2. What does block-based coding use?

(i) Written text (ii) Puzzle-like blocks

(iii) Music (iv) Handwritten notes

3. What can you create on a micro:bit display?

(i) Food (ii) Sounds

(iii) Emojis (iv) Clothes

Programming with Micro:bit 73