# Case02: Potentiometer

## Purpose
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- In this project, you will learn how to read the output voltage of the potentiometer and display it on microbit screen in the form of bar garph.

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

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

## Hardware connect

![](./images/case_02_01.png)

## Programming
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### Program annotation

![](./images/case_02_02.png)

### Programming 

Links: [https://makecode.microbit.org/_Y3Kikm471R0V](https://makecode.microbit.org/_Y3Kikm471R0V)

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/_Y3Kikm471R0V" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin">
</iframe>
</div>  

## Result
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* A bar graph of output voltage value is displayed on micro:bit

## Exploration
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* How to adjust the brightness of micro:bit screen with potentiometer?

## FAQ
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## Relevant Files
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