Example Code for micro:bit-Lighting up the LED strip

Hardware Preparation

M011.00184 RGB LED Strip	MBT0039 micro:bit	BOS0040 micro:bit BOSON Expansion Board

Software Preparation

Before using the colorful light strip, load the library in Mind+. Open the Mind+ programming platform, find the "Extension" in the lower left corner and click it, then click the WS2812 RGB light in the "display" to load the relevant commands. At this time, the display module will appear in the command area. After completing the above steps, connect the light strip to the micro:bit board to control the effect of the light strip through programming.

Wiring Diagram

Other Preparation Work

① Select the LED strip's pin to be connected to micro:bit, and the number and brightness of the LED of the strip. The command statement is as follows. Here we set the pin to P0, the number of LED to 7, and the brightness to 255 (range 0-255).

② Determine the range of usable LED. The commands to be called are shown below.
Here the range is 0-6 in Mind+ and 1-7 in MakeCode.

Then determine the range of the LED strip hue, and the commands to be called are shown below. Here the hue range is 1-360 (red - green - blue).

Sample Code

Mind+ Sample Code:

MakeCode Sample Code:

Result

Colorful Effect:

Add the "rotate pixels" block into the main program so that the LED strip can light up and shows gradient color recurrently. It's more beautiful to present a light ring effect.

Video Demo

Programming

Additional Information