# Case 50: A Small Trash Can

## Introduction

Make a small trash can with [Nezha-A Inventor's Kit](https://shop.elecfreaks.com/products/elecfreaks-micro-bit-nezha-48-in-1-inventors-kit-without-micro-bit-board?_pos=2&_sid=ed1b6fbd2&_ss=r). 


![](./images/50_1.png)

## Quick to Start

### Materials Rrquired

[Nezha-A Inventor's Kit](https://shop.elecfreaks.com/products/elecfreaks-micro-bit-nezha-48-in-1-inventors-kit-without-micro-bit-board?_pos=2&_sid=ed1b6fbd2&_ss=r)

### Assembly

Components List

![](./images/neza-inventor-s-kit-case-50-02.png)

Build as the steps suggest: 

![](./images/neza-inventor-s-kit-step-50-01.png)

![](./images/neza-inventor-s-kit-step-50-02.png)

![](./images/neza-inventor-s-kit-step-50-03.png)

![](./images/neza-inventor-s-kit-step-50-04.png)

![](./images/neza-inventor-s-kit-step-50-05.png)

![](./images/neza-inventor-s-kit-step-50-06.png)

![](./images/neza-inventor-s-kit-step-50-07.png)

![](./images/neza-inventor-s-kit-step-50-08.png)

![](./images/neza-inventor-s-kit-step-50-09.png)

![](./images/neza-inventor-s-kit-step-50-10.png)

![](./images/neza-inventor-s-kit-step-50-11.png)

![](./images/neza-inventor-s-kit-step-50-12.png)

![](./images/neza-inventor-s-kit-step-50-13.png)

![](./images/neza-inventor-s-kit-step-50-14.png)

![](./images/neza-inventor-s-kit-step-50-15.png)

![](./images/neza-inventor-s-kit-step-50-16.png)

![](./images/neza-inventor-s-kit-step-50-17.png)

![](./images/neza-inventor-s-kit-step-50-18.png)

![](./images/neza-inventor-s-kit-step-50-19.png)

![](./images/neza-inventor-s-kit-step-50-20.png)



### Connection Diagram

Connect the [Motor](https://shop.elecfreaks.com/products/elecfreaks-high-speed-building-blocks-motor?_pos=4&_sid=a2da3fff8&_ss=r) to M1 on [Nezha-A Master Box](https://shop.elecfreaks.com/products/elecfreaks-nezha-breakout-board?_pos=1&_sid=00432325a&_ss=rl).

![](./images/neza-inventor-s-kit-case-48-03.png)


## MakeCode Programming

### Step 1
Click in the "Advanced" in the MakeCode drawer to see more choices. 

![](./images/neza-inventor-s-kit-case-37-04.png)

For programming, we need to add a package: click “Extensions” at the bottom of the MakeCode drawer, and search for “Nezha” in the dialog to download.

![](./images/neza-inventor-s-kit-case-37-06.png)

***Note:*** If you encounter a prompt that some codebases will be removed due to incompatibility, you can follow the prompt to continue or create a new project in the menu.

### Step 2
### Program as the picture indicates

![](./images/neza-inventor-s-kit-case-50-07.png)

### Link
Link: [https://makecode.microbit.org/_VE00w0E5rLL6](https://makecode.microbit.org/_VE00w0E5rLL6)

You may 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:_VE00w0E5rLL6" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin"></iframe></div>  

### Result

Press button A to open the lid of the trash can; press button B to close it. 

![](./images/50_2.gif)