# Case 40：The Mechanical Motorcycle

## Introduction
Build a mechanical motorcycle with the [Nezha 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/40_1.png)

## Quick to Start


### Materials Required

[Nezha 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-40-02.png)

Build it as the pictures suggest: 

![](./images/neza-inventor-s-kit-step-40-01.png)

![](./images/neza-inventor-s-kit-step-40-02.png)

![](./images/neza-inventor-s-kit-step-40-03.png)

![](./images/neza-inventor-s-kit-step-40-04.png)

![](./images/neza-inventor-s-kit-step-40-05.png)

![](./images/neza-inventor-s-kit-step-40-06.png)

![](./images/neza-inventor-s-kit-step-40-07.png)

![](./images/neza-inventor-s-kit-step-40-08.png)

![](./images/neza-inventor-s-kit-step-40-09.png)

![](./images/neza-inventor-s-kit-step-40-10.png)

![](./images/neza-inventor-s-kit-step-40-11.png)

![](./images/neza-inventor-s-kit-step-40-12.png)

![](./images/neza-inventor-s-kit-step-40-13.png)

![](./images/neza-inventor-s-kit-step-40-14.png)

![](./images/neza-inventor-s-kit-step-40-15.png)

![](./images/neza-inventor-s-kit-step-40-16.png)

![](./images/neza-inventor-s-kit-step-40-17.png)

![](./images/neza-inventor-s-kit-step-40-18.png)

![](./images/neza-inventor-s-kit-step-40-19.png)

![](./images/neza-inventor-s-kit-step-40-20.png)

![](./images/neza-inventor-s-kit-step-40-21.png)

![](./images/neza-inventor-s-kit-step-40-22.png)

![](./images/neza-inventor-s-kit-step-40-23.png)

![](./images/neza-inventor-s-kit-step-40-24.png)

![](./images/neza-inventor-s-kit-step-40-25.png)

![](./images/neza-inventor-s-kit-step-40-26.png)

![](./images/neza-inventor-s-kit-step-40-27.png)

![](./images/neza-inventor-s-kit-step-40-28.png)

![](./images/neza-inventor-s-kit-step-40-29.png)

![](./images/neza-inventor-s-kit-step-40-30.png)

![](./images/neza-inventor-s-kit-step-40-31.png)

![](./images/neza-inventor-s-kit-step-40-32.png)

![](./images/neza-inventor-s-kit-step-40-33.png)

![](./images/neza-inventor-s-kit-step-40-34.png)

![](./images/neza-inventor-s-kit-step-40-35.png)

We can see that the construction is completed as shown in the following figure:

![](./images/neza-inventor-s-kit-case-40-01.png)
### Connection Diagram

Connect the  the [geekservo](https://shop.elecfreaks.com/products/elecfreaks-360-degrees-building-blocks-servo?_pos=1&_psq=servo&_ss=e&_v=1.0) to S1 and the [motors](https://shop.elecfreaks.com/products/elecfreaks-high-speed-building-blocks-motor?_pos=4&_sid=a2da3fff8&_ss=r) to M1 on [Nezha Breakout Board](https://shop.elecfreaks.com/products/elecfreaks-high-speed-building-blocks-motor?_pos=4&_sid=a2da3fff8&_ss=r).

![](./images/neza-inventor-s-kit-case-40-03.png)


## MakeCode Programming

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

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



For programming [Nezha Breakout Board](https://shop.elecfreaks.com/products/elecfreaks-high-speed-building-blocks-motor?_pos=4&_sid=a2da3fff8&_ss=r), we need to add a package. Search with "Nezha" in the dialogue box and click to download it. 

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

*Notice*: If you met a tip indicating that some codebases would be deleted due to incompatibility, you may continue as the tips say or create a new project in the menu. 

### Step 2

### Code as the picture suggests

![](./images/neza-inventor-s-kit-case-40-07.png)


### Reference
Link: [https://makecode.microbit.org/_VtTc8DAsFWMc](https://makecode.microbit.org/_VtTc8DAsFWMc)

You may also download it directly: 

<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:_VtTc8DAsFWMc" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin"></iframe></div>  
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### Result

When the button A is pressed, the motorcycle turns left; when the button B is pressed, it drives to the right; and when the buttons A and B are pressed at the same time, the motorcycle stops driving.

![](./images/40_40.gif)