35. Case 34: Gesture Recognition Car#

35.1. Introduction#


This is a simple car. We can install gesture recognition sensors on the car to control the car’s driving route based on gestures.

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35.2. Quick Start#


Materials Required#

Nezha expansion board × 1

micro:bit V2 × 1

Motors × 2

Gesture sensor × 1

Bricks × n

Tips: Purchase Interactive coding accessories pack here.

Connection Diagram#

Insert the micro:bit, connect the motors to M1and M4 and the gesture sensor to IIC port on the Nezha expansion board as the picture shows.

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Assembly Video#

link: https://youtu.be/ib-xX0MS41U

Assembly Steps#

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35.3. MakeCode Programming#


Step 1#

Click “Advanced” in the MakeCode to see more choices.

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For programming, we need to add a package: click “Extensions” at the bottom of the MakeCode drawer and search with “nezha” in the dialogue box to download it.

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Notice: If you met a tip indicating that some codebases would be deleted due to incompatibility, you may continue as the tips say or create a new project in the menu.

Step 2#

Code as below:#

../../_images/case_34_10.png

Reference#

Link: https://makecode.microbit.org/_WkPER99xMP8e

You may also download it directly below:

Result#

After powering on, the car moves along with the indicated gestures.

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