Chapter 5 of KitiBot-Microbit

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RGB LED


There are 4 RGB LEDs on control board, you can program to control their colors. This chapter we learn how to control the RGB LED.

【Note】The neopixel library of micro:bit is conflict with Bluetooth. We use APA102 type RGB LED instead of WS2812 to avoid of conflict.

Create a new project, click Advance->Add Pakcages, input the address: https://github.com/waveshare/pxt-APA102 To add APA102 library. Affter adding, a new class APA102 can be chosen in Blocks area.

APA02 code.gif

1. Lighting all RGB LEDs

RGB LED code.gif

First initialize APA102, set 4 LEDs as RGB, and save it to variable item.

APA102.png

Note: Control board use P8 and P12 to control RGB LED by default, if you change them, you need to set control pins

Set SDI block.png

You can also set the color with this block

LED color block.png

Download our demo code, 4 RGB LED will all light on.

2. Display different color

We try to change the code above and set 4 RGB LED display different colors separately

LED code.gif

With this block, we can set pixel color from 0.

Set pixel color.png

And show it. Without this block, the color you set before could not be showed.

Item show.png

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