# Case 16: The Road Sweeper

## Purpose
---
To make a road sweeper.
 
![](./images/case-16-01.png)


## Link: 
---
[micro:bit Wonder Building Kit](https://shop.elecfreaks.com/products/elecfreaks-micro-bit-32-in-1-wonder-building-kit-without-micro-bit-board?_pos=5&_sid=2094afd2f&_ss=r)

## Materials Required
---
![](./images/case-16-02.png)


Video link:
[https://youtu.be/kdY41mPGvRI](https://youtu.be/kdY41mPGvRI)

## Bricks build-up
---


![](./images/step-case-16-01.png)

![](./images/step-case-16-02.png)

![](./images/step-case-16-03.png)

![](./images/step-case-16-04.png)

![](./images/step-case-16-05.png)

![](./images/step-case-16-06.png)

![](./images/step-case-16-07.png)

![](./images/step-case-16-08.png)

![](./images/step-case-16-09.png)

![](./images/step-case-16-10.png)

![](./images/step-case-16-11.png)

![](./images/step-case-16-12.png)

![](./images/step-case-16-13.png)

![](./images/step-case-16-14.png)

![](./images/step-case-16-15.png)

![](./images/step-case-16-16.png)

![](./images/step-case-16-17.png)

![](./images/step-case-16-18.png)

![](./images/step-case-16-19.png)

![](./images/step-case-16-20.png)

![](./images/step-case-16-21.png)

![](./images/step-case-16-22.png)

![](./images/step-case-16-23.png)

![](./images/step-case-16-24.png)

## Hardware Connection

Connect a [motor](https://www.elecfreaks.com/geekservo-motor-2kg-compatible-with-lego.html) to M1 port on [Wukong breakout board](https://www.elecfreaks.com/wukong-board-with-lego-holder-for-micro-bit.html).

![](./images/Wonder-Building-Kit-case-16-06.png)

## Software Platform
---
[MakeCode](https://makecode.microbit.org/)

## Coding
---
### Add extensions
Click "Advanced" in the MakeCode to see more choices.
 
![](./images/case-01-03.png)

Search with Wukong in the dialogue box to download it. 

![](./images/case-01-04.png)





### Program
 
![](./images/case-16-05.png)

Link:[https://makecode.microbit.org/_18WVrTE5LTzb](https://makecode.microbit.org/_18WVrTE5LTzb)

### Result

When button A is pressed, the sweeper moves forward and starts sweeping, when button B is pressed, the sweeper stops moving and ends sweeping.