Keyestudio 4WD Manual page 164

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(1)Project Description
The Micro: Bit main board V2 has an built-in speaker, which makes adding
sound to the programs easier. We can program the speaker to air all kinds
of tones, like playing the son Ode to Joy.
(2)Experimental Preparation：
 Connect micro:bit to computer with the USB cable
 Open online Makecode editor
Import Hex profile (How to import?)
Or click"New Project"and drag blocks step by step
(3)Test Code:
The route to get test
File Type
Hex file KS4031(4032) folder/Makecode
Tutorial/Makecode Code/Project
Code/Project 9：Speaker
code（How to load?）
Path File Name
Project 9：Speaker
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