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4) Test Result
Send the test code to micro:bit main board, then insert the micro:bit main board into the car shield and connect
a 18650 battery, turn the POWER switch ON.
The left infrared sensor on the car shield detects an obstacle, the car will turn right at a certain angle and then
go forward.
The right infrared sensor on the car shield detects an obstacle, the car will turn left at a certain angle and then
go forward.
If both of them detect no obstacle, the car will go forward.
If both of them detect obstacles, the car will stop, then go backward, turn left at a certain angle and then go
forward.
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