Keyestudio 4WD Manual page 262

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 Dial power switch to ON end
 Connect micro:bit to computer by USB cable
 Open online Makecode editor
Import Hex profile (How to import?)
blocks step by step(add MecanumRobot extension library first)
(How to add MecanumRobot extension?)
(4)Test Code:
Code1：
File Type
Hex file KS4031(4032) folder/Makecode
Tutorial/Makecode Code/Project
17.1：Detect Line Tracking
Sensor-1
Or you could edit code step by step in the editing area.
Click"Advanced"→"Serial"→"serial redirect to USB"
Place it into"on start"
, or click"New Project"and drag
Path File Name
Project 17.1：Detect
Line Tracking Sensor-1
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