# Christmas Tree Rainbow LED for micro:bit(EF08219)

## Introduction

 The christmas tree rainbow LED, with 6 coding LEDs，can help you to decorate a beautiful chritmas night.

## Products Link

[ELECFREAKS micro:bit Christmas Tree Rainbow LED](https://shop.elecfreaks.com/products/elecfreaks-micro-bit-christmas-kits-christmas-tree-rainbow-led-snowflake-buzzer?_pos=1&_sid=ca3b54a82&_ss=r)

## Features

 In christmas tree shape, adapt to the christmas scene
 With coding rainbow LED for any colour you like.
 With crocodile clip lines, no need for a expansion board

## Parameters


|Items|Parameters|
|:-:|:-:|
|Name|Christmas Tree Rainbow LED|
|SKU| EF03420|
|Input Voltage|DC 3.3~5.0V|
|Size|75.93mm X 50.00mm|
|Net Weight|6.5g|


## Quick Start  


### Preparation
 1 x Chritmas Tree Rainbow LED
 3 x crocodile clip lines（Please prepare by yourself）
 1 x micro:bit（Please prepare by yourself）

### Hardware Connect   
 Connect the black crocodile clip line to the GND port of the micro:bit, the other side of the black crocodile clip line to the G port of the christmas tree rainbow LED.
 Connect the red crocodile clip line to the 3V port of the micro:bit, the other side of the red crocodile clip line to the V port of the christmas tree rainbow LED.
 Connect the yellow crocodile clip line to the 0 port of the micro:bit, the other side of the yellow crocodile clip line to the S port of the christmas tree rainbow LED.

![](./images/8uQCfYE.jpg)

### Software  
#### Step 1

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

 Click on "New Project" and set a new Project.

![](./images/t34k5Zb.png)

 Click on "Advanced" for more code blocks and click the Extensions at the bottom of the column.

![](./images/Zg0fO6x.png)

 Serch "neopixel" and add neopixel as a codebase.

![](./images/pqB776X.png)

#### Step 2

 Snap "set strip to RainbowLED at pin with leds as" from RainbowLED into the on start. Set pin to P1 with 6 LEDs in RGB pattern.

![](./images/qCgKGXD.png)

#### Step 3

 Snap the strip rotate block from the RainbowLED under the forever. Set the rotate pixels to 1 and set the LEDs change its colour one by one.
 Then, snap a strip show block for colourful light. 

![](./images/LMHM9JS.png)

### Program

Program link：[https://makecode.microbit.org/_Ukp8C5M2dbr2](https://makecode.microbit.org/_Ukp8C5M2dbr2)

You also could directly download program by visiting website as below:

<div style="position:relative;height:0;paddingbottom:70%;overflow:hidden;"><iframe style="position:absolute;top:0;left:0;width:100%;height:100%;" src="https://makecode.microbit.org/#pub:_Ukp8C5M2dbr2" frameborder="0" sandbox="allowpopups allowforms allowscripts allowsameorigin"></iframe></div>

### Result 

The christmas tree rainbow LED glows colourful light to bring beauty to the christmas night.

![](./images/fDvmCab.gif)

## FAQ