# Case 08: Auto Pick-up Device


##  Introduction
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- In the normal pick-up of the nut fruits, we usually use a stick to chop the branches to get the mature fruits, which could do a bad harm to the leaves and branches,thus, we can make an auto pick-up device by shaking the trunk of the tree. 

##  Function
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- Shake the trunk of the tree to get the fruits. 

## Products Link
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- 1 x [microbit Smart Agriculture Kit](https://shop.elecfreaks.com/products/elecfreaks-micro-bit-smart-agriculture-kit-without-micro-bit-board?_pos=2&_sid=2c86b7764&_ss=r)

## Picture
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![](./images/microbit-Smart-Agriculture-Kit-case-01-02.png)

## Hardware Connection
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Connect the servo to P1 on IoT:bit. 

![](./images/microbit-Smart-Agriculture-Kit-case-08-03.png)

## Software Programming 

---

Click "Advanced" in the MakeCode to see more choices.

![](./images/microbit-Smart-Agriculture-Kit-case-01-04.png)

For programming, we need to add a package: click "Extensions" at the bottom of the MakeCode drawer and search with "servo" in the dialogue box to download it. 

![](./images/microbit-Smart-Agriculture-Kit-case-01-06.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. 

## Program

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Set the servo to drive to 90°, pause for 200ms, then set it to drive to 0° and pause another 200ms. 

![](./images/microbit-Smart-Agriculture-Kit-case-08-07.png)



Link: [https://makecode.microbit.org/_EdPD6HckVEuE](https://makecode.microbit.org/_EdPD6HckVEuE)

<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:https://makecode.microbit.org/_EdPD6HckVEuE" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin">
</iframe>
</div>  


## Result
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- Shake the trunk via the servo to pick up the fruits.