# Case 19: Sweeper

## Purpose
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- Build a TPBot sweeper. 

## Material
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- 1 x [TPBot](https://shop.elecfreaks.com/products/elecfreaks-micro-bit-tpbot-car-kit-without-micro-bit-board?_pos=1&_sid=f32828112&_ss=r)

![](./images/TPBot_tianpeng_case_01_01.png)

## Hardware Connection
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Connect the 360 degrees servo to servo 1 port on TPBot. (Servos are not included in our TPBot kit)

![](./images/TPBot_tianpeng_case_19_03.png)

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


## Programming
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- Click "Advanced" in the MakeCode drawer to see more choices. 

![](./images/TPBot_tianpeng_case_01_02.png)

- We need to add a package for programming. Click "Extensions" in the bottom of the drawer and search with "tpbot" to download it. 

![](./images/TPBot_tianpeng_case_01_03.png)

### Sample

- Drag the show icon brick in the on start and set the car to move forward at the speed of 30%; in forever brick, set the servo connecting to S1 rotate to 180 degrees and pause for 1000ms, and set it rotate to 0 degree and pause for 1000ms. 

![](./images/TPBot_tianpeng_case_19_04.png)


### Link
- Link：[https://makecode.microbit.org/_664VpuAVMcCa](https://makecode.microbit.org/_664VpuAVMcCa)

- You may also 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:_664VpuAVMcCa" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin"></iframe></div>  

### Conclusion

The car move forward with the servo rotating. 


## Exploration
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## FAQ
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Q: The car cannot move with the code in this case?  
A: It might be a lack power of the battery, please add the value of the parameter for the speed of the car and test it. 

##  Revelant File 
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