Case 32: Gesture Recognition Ring LEDs

Introduction

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

Quick Start

Materials Required

Nezha expansion board × 1

micro:bit V2 × 1

Gesture sensor × 1

Rainbow LED ring × 1

Bricks × n

Tips: You may need to purchase Nezha Inventor's Kit and Purchase Interactive coding accessories pack here. if you want all the above components.

Connection Diagram

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

Assembly Video

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

Assembly Steps

MakeCode Programming

Step 1

Click "Advanced" in the MakeCode drawer to see more choices.

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

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

Reference

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

You may download it directly below:

Result

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