# Case03: PIR sensor

## Purpose
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- In this project, you will learn how to change the graph on the micro:bit through PIR sensor.

## Materials 
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* 1 x micro:bit
* 1 x [Basic : bit](https://www.elecfreaks.com/store)
* 1 x PIR sensor

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

## Hardware connect

![](./images/case_03_01.png)

## Programming
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### Program annotation

![](./images/case_03_02.png)

### Programming 

Links: [https://makecode.microbit.org/_0H22Luc6UJkX](https://makecode.microbit.org/_0H22Luc6UJkX)

You can 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:https://makecode.microbit.org/_0H22Luc6UJkX" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin">
</iframe>
</div>  


## Result
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* While detecting the body, the micro:bit changes the icon on its screen.

## Exploration
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* How to progreamme to make the basic:bit alert while the PIR sensor detecting the body?

## FAQ
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## Relevant Files
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