Case 33: Color-controlled Lights
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.