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Case 13: Lively Music

Introduction​

We can adjust the frequency of the buzzer sound through the potentiometer. Try to create unique music by turning the potentiometer!

Quick to Start​

Mterials​

Nezha expansion board × 1

micro:bit × 1

Trimpot × 1

RJ11 wires × 1

Bricks × n

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

Connection Diagram​

Connect the trimpot to J1 port on the Nezha expansion board.

Assembly Video​

Video reference for building:https://youtu.be/G0hycQ2rxCk

Assembly Steps​

MakeCode Programming.​

Step 1​

Click "Advanced" in the makecode drawer to see more choices.

We need add a package for programming. Click "Extensions" in the bottom of the makecode drawer and search with "Planet X" to have the package downloaded.

Note: If you met a tip indicating it might be deleted due to incompatibility, you may continue as it indicates or create a new project in the menu.

Step 2​

Programme​

Link: https://makecode.microbit.org/_Fp5c7g7XjRMg

You may download it directly below:

Result​

The tones could be adjusted via the trimpot.