11. Case 07: Smart Lamps

11.1. Introduction

Use the light intensity of the micro:bit to make a smart light, which automatically turns on or off the LED light according to the light level.

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11.2. Quick Start

Materials Required

Nezha expansion board × 1

micro:bit × 1

LED-yellow × 1

RJ11 wires × 1

Tips: You may need to purchase Nezha Inventor’s Kit if you want all the above compoents.

Connection Diagram

Connect the yellow LED on the Nezha expansion board as the picture shows.

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Assembly Video

Video reference: https://youtu.be/oDzSJMKisO8

Assembly Steps

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11.3. 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 “PlanetX” 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:

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Reference

Link：https://makecode.microbit.org/_haMDD2EftPLV

You may also download it directly below:

Result

The LED lamps light on/off according to the light intensity.

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