8. Case 07: Smart Lamps#

8.1. 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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8.2. 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.

../../_images/case_07_03.png

Assembly Video#

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

Assembly Steps#

../../_images/case_step_07_01.png

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../../_images/case_step_07_03.png

../../_images/case_step_07_04.png

../../_images/case_step_07_05.png

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../../_images/case_step_07_07.png

8.3. MakeCode Programming#

Step 1#

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

../../_images/case_01_10.png

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:#

../../_images/case_07_10.png

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.

../../_images/case-gif-07.gif