22. case 21 An Oscillating Fan#

22.1. Introduction#


Combine the motor and the servo to make a common head-shaking fan in daily life, and control the fan head-shaking function and turn it on and off by pressing the button.

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22.2. Quick Start#


Materials Required#

Nezha expansion board × 1

micro:bit × 1

360°servo × 1

Motor × 1

Bricks × n

Connection Diagram#

Connect the servo to S1, motor to M1 and the micro:bit to Nezha expansion board.

../../_images/case_21_03.png

Assembly Video#

Video:https://youtu.be/Ysg-t4QNmo8

Assembly Video#

../../_images/case_step_21_01.png

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22.3. MakeCode Programming#


Step 1#

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

../../_images/case_01_10.png

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

../../_images/case_03_09.png

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

Programme as the picture shows:#

../../_images/case_21_17.png

Result#

Turn on/off the fan by pressing button A/B.

../../_images/case-gif-21.gif