26. Case 25: Colors of the Emotions#

26.1. Introduction#


This is an emotional micro:bit. It will show a smile to the color that it likes, and it will also express sadness or anger at the color it doesn’t like. Let’s find out the favorite color of the small micro:bit.

../../_images/case_25_01.png

26.2. Quick Start#


Materials Required#

Nezha expansion board × 1

micro:bit V2 × 1

Color sensor × 1

Bricks × n

Tips: Purchase Interactive coding accessories pack here.

Connection Diagram#

Inset the micro:bit, and connect the color sensor to IIC port on Nezha expansion board.

../../_images/case_25_03.png

Assembly Video#

Video link: https://youtu.be/5xkxc6J6AnI

Assembly Steps#

../../_images/case_step_25_01.png

../../_images/case_step_25_02.png

../../_images/case_step_25_03.png

../../_images/case_step_25_04.png

../../_images/case_step_25_05.png

26.3. 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” to download it.

../../_images/case_03_09.png

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#

../../_images/case_25_10.png

Reference#

Link: https://makecode.microbit.org/_KMwAWW7dh84P

You may download it directly below:

Result#

After powering on, the micro:bit displays different emotions in accordance with the colors detected by the sensor.

../../_images/case-gif-25.gif