# Rainbow LED Ring(EF05015)

## Introduction 

Rainbow LED Ring is based on WS2812B bead that can show the RGB. 

![](./images/05015_01.png)

## Products Link

[ELECFREAKS PlanetX LED - Rainbow](https://shop.elecfreaks.com/products/elecfreaks-planetx-led-rainbow?_pos=1&_sid=959367863&_ss=r)

## Characteristic


 Designed in RJ11 connections, easy to plug.

## Specification


Item | Parameter 
:-: | :-: 
SKU|EF05015
Connection|RJ11
Type of Connection|Digital input
Working Voltage|3.3V
Core IC|WS2812 3535 Encapsulation
Number of Pixels|8

## Outlook



![](./images/05015_02.png)

## Quick to Start


### Materials Required and Diagram

 Connect the Rainbow LED ring to J1 port in the Nezha expansion board as the picture shows.


![](./images/05015_03.png)

## MakeCode Programming


### Step 1

Click "Advanced" in the MakeCode drawer to see more choices.

![](./images/05001_04.png)

We need to add a package for programming, . Click "Extensions" in the bottom of the drawer and search with "PlanetX" in the dialogue box to download it. 

![](./images/05001_05.png)

***Note:*** If you met a tip indicating that the codebase will be deleted due to incompatibility, you may continue as the tips say or build a new project in the menu. 

### Step 2

### Code as below:

![](./images/05015_06.png)


### Link
Link: [https://makecode.microbit.org/_AU7FyLCLFTMY](https://makecode.microbit.org/_AU7FyLCLFTMY)

You may also download it directly below: 

<div style="position:relative;height:0;padding-bottom:70%;overflow:hidden;"><iframe style="position:absolute;top:0;left:0;width:100%;height:100%;" src="https://makecode.microbit.org/#pub:_AU7FyLCLFTMY" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin"></iframe></div>  


### Result
 Rainbow LED ring lights on. 

## Python Programming 


### Step 1

Download the package and unzip it: [PlanetX_MicroPython](https://github.com/lionyhw/PlanetX_MicroPython/archive/master.zip)

Go to   [Python editor](https://python.microbit.org/v/2.0)


### Step 2
### Reference
```
from microbit import *
import neopixel
from enum import *
from random import randint
np = neopixel.NeoPixel(J1, 8)
while True:
    for pixel_id in range(0, len(np)):
        red = randint(0, 60)
        green = randint(0, 60)
        blue = randint(0, 60)
        np[pixel_id] = (red, green, blue)
        np.show()
        sleep(100)
```


### Result
 Rainbow LED ring lights on after powering on. 

## Relevant File


## Technique File