# Case 31: The Drawing Machine

## Purpose
---
Make a drawing machine.
 
![](./images/Wonder-Building-Kit-case-31-01.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/Wonder-Building-Kit-step-case-31-01.png)

## Bricks build-up
---

![](./images/Wonder-Building-Kit-step-case-31-02.png)

![](./images/Wonder-Building-Kit-step-case-31-03.png)

![](./images/Wonder-Building-Kit-step-case-31-04.png)

![](./images/Wonder-Building-Kit-step-case-31-05.png)

![](./images/Wonder-Building-Kit-step-case-31-06.png)

![](./images/Wonder-Building-Kit-step-case-31-07.png)

![](./images/Wonder-Building-Kit-step-case-31-08.png)

![](./images/Wonder-Building-Kit-step-case-31-09.png)

![](./images/Wonder-Building-Kit-step-case-31-10.png)

![](./images/Wonder-Building-Kit-step-case-31-11.png)

![](./images/Wonder-Building-Kit-step-case-31-12.png)

![](./images/Wonder-Building-Kit-step-case-31-13.png)

![](./images/Wonder-Building-Kit-step-case-31-14.png)

## Hardware Connection

Connect two [motors](https://www.elecfreaks.com/geekservo-motor-2kg-compatible-with-lego.html) to M1 and M2 ports on [Wukong breakout board](https://www.elecfreaks.com/wukong-board-with-lego-holder-for-micro-bit.html). 

![](./images/Wonder-Building-Kit-case-31-06.png)

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

## Coding
---
### Add extensions
Click "Advanced" in the MakeCode to see more choices.
 
![](./images/Wonder-Building-Kit-case-21-02.png)

Search with Wukong in the dialogue box to download it. 

![](./images/Wonder-Building-Kit-case-21-03.png)





### Program
 
![](./images/Wonder-Building-Kit-case-31-04.png)


Link:[https://makecode.microbit.org/_KRcLTWaab2sk](https://makecode.microbit.org/_KRcLTWaab2sk)

### Result

Use the leather band to fix the pen on the gray double bolt parts, the drawing machine is placed on a piece of white paper, when the button A is pressed, the drawing machine begins to draw. By adjusting the speed of the motor M1 and motor M2, you can draw different patterns; when the button B is pressed, the drawing machine stops.