33. Case 32: Gesture Recognition Ring LEDs

33.1. Introduction

This is an interesting lighting device that uses gesture recognition sensors to recognize human gesture commands and control the color of the light.

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33.2. Quick Start

Materials Required

Nezha expansion board × 1

micro:bit V2 × 1

Gesture sensor × 1

Rainbow LED ring × 1

Bricks × n

Tips:Purchase Interactive coding accessories pack here.

Connection Diagram

Inset the micro:bit, connect the gesture sensor to IIC port and the rainbow led ring to S1 on Nezha expansion board.

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Assembly Video

Video link: https://youtu.be/hq1rtbGvAwU

Assembly Steps

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33.3. MakeCode Programming

Step 1

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

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We need to add a package for programming. Click “Extensions” in the bottom of the drawer and search with “nezha” to download it.

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

Step 2

Programme as the pictures indicate

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Reference

Link: https://makecode.microbit.org/_f3sDCoEzXfa8

You may download it directly below:

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Result

The lights color is able to be changed by hands gesture.

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