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Case 18: Music Box


This is a music box. We can control the buzzer on the micro:bit to emit different melody by pressing the button A on the micro:bit.

Quick to Start


Nezha expansion board × 1

micro:bit × 1

Tips: You may need to purchase Nezha Inventor's Kit if you want all the above compoents.

Connection Diagram

Insert the micro:bit to Nezha expansion board.

MakeCode Programming

Programme as the picture shows:


You may also downoad it directly below:


Press button A to switch the music.