# Case 13: Remote Control with micro:bit Accelerometer

## Purpose
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- Programme to control the TPBot with the accelerometer.

## Material
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- 1 x [TPBot](https://item.taobao.com/item.htm?spm=a1z10.5-c-s.w4002-18602834185.41.68d15ccfBFHNPy&id=618758535761)

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

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


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

![](./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" in the dialogue box to download it.  

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

### Sample

### Remote Control Part

- Set the micro:bit showing a set icon and the radio group as 1. 
- Radio send x which is given by its acceleration dividing 10 in the forever brick. 
- Radio send y which is given by its acceleration dividing 10  in the forever brick. 
- 
![](./images/TPBot_tianpeng_case_13_04.png)

### Link
- Link: [https://makecode.microbit.org/_11kPTbbxM9Mf](https://makecode.microbit.org/_11kPTbbxM9Mf)

- 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:_11kPTbbxM9Mf" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin"></iframe></div>  

### Receiving Part

- Set the micro:bit showing a set icon and the radio group as 1. 
- Drag two" if...else..." sentences to the "on radio received..." block, judge if the received name is x or y. 
- If it's x, save it as the variable as the accelaration from the x.
- If it's y, save it as the variable as the accelaration from the y.
- Set the speed of the left wheel being y+x and the right wheel being y-x.

![](./images/TPBot_tianpeng_case_13_05.png)

### Link
- Link: [https://makecode.microbit.org/_a6LLFsMfDT7K](https://makecode.microbit.org/_a6LLFsMfDT7K)

- 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:_a6LLFsMfDT7K" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin"></iframe></div>  

### Conclusion

- Power up to show the set icon on the micro:bit display, and the movement of TPBot is controlled by the changing angel from the micro:bit.  

## Exploration
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## FAQ
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## Relevant File
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