34. Case 33: Color-controlled Lights¶
Recognize the color through the color recognition sensor, and control the rainbow LED to light up the in the same color.
34.2. Quick Start¶
Nezha expansion board × 1
micro:bit V2 × 1
Color sensor × 1
Rainbow LED ring × 1
Bricks × n
Insert the micro:bit, connect the color sensor to IIC port and the rainbow led ring to J1 on the Nezha expansion board as the picture shows.
34.3. MakeCode Programming¶
Click “Advanced” in the MakeCode to see more choices.
For programming, we need to add a package: click “Extensions” at the bottom of the MakeCode drawer and search with “nezha” in the dialogue box to download it.
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.
Code as below:¶
You may also download it directly below:---
After powering on, the the lights turn on with the color detected from the color sensor.