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Observations

In the “Voice Control System” activity, students will observe how their Micro:bit responds to voice
commands. When they speak specific words or phrases, the Micro:bit will process the audio input
and perform corresponding actions, such as turning on an LED, activating a motor, or displaying
messages.

Students can experiment with different voice commands to see how accurately the Micro:bit
recognizes them. They may also discuss the challenges of voice recognition technology, such as
background noise or variations in pronunciation.

Applications

Students, speaking LEDs can be embedded in children’s storybooks. When a child touches a picture
or a word, the LED lights up and narrates the story, making reading more engaging and interactive.

exercise

A. Tick ( ) the correct option.
1. How many programmable buttons are available on the micro:bit?

(i) 1 (ii) 2

(iii) 3 (iv) 4
2. What is the maximum voltage input allowed on the micro:bit’s external power supply connector?

(i) 3.3V (ii) 5V

(iii) 6V (iv) 9V
3. Which language is NOT commonly used to program the micro:bit?

(i) Python (ii) JavaScript

(iii) Scratch (iv) C#
4. What is the primary function of a micro:bit in a voice-controlled robot?

(i) To play music (ii) To process voice commands

(iii) To display images (iv) None of these
5. How can a robot respond to a specific hand gesture?

(i) By ignoring the micro:bit

(ii) By using sensors to detect the gesture

(iii) By playing a sound

(iv) All of the above

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