# Case 14: The Reading Range Guitar

## Purpose
---
To make a guitar that is able to read ranges. 
 
![](./images/case-14-01.png)

## Link: 
---
[micro:bit Wonder Building Kit](https://shop.elecfreaks.com/products/elecfreaks-micro-bit-32-in-1-wonder-building-kit-without-micro-bit-board?_pos=5&_sid=2094afd2f&_ss=r)

## Materials Required
---
![](./images/case-14-02.png)

Video link:
[https://youtu.be/B_P8gOaA0Gc](https://youtu.be/B_P8gOaA0Gc)

## Bricks build-up
---


![](./images/step-case-14-01.png)

![](./images/step-case-14-02.png)

![](./images/step-case-14-03.png)

![](./images/step-case-14-04.png)

![](./images/step-case-14-05.png)

![](./images/step-case-14-06.png)

![](./images/step-case-14-07.png)

![](./images/step-case-14-08.png)

![](./images/step-case-14-09.png)

![](./images/step-case-14-10.png)

![](./images/step-case-14-11.png)

![](./images/step-case-14-12.png)

![](./images/step-case-14-13.png)

![](./images/step-case-14-14.png)

![](./images/step-case-14-15.png)

![](./images/step-case-14-16.png)

![](./images/step-case-14-17.png)

![](./images/step-case-14-18.png)

![](./images/step-case-14-19.png)

![](./images/step-case-14-20.png)

![](./images/step-case-14-21.png)

![](./images/step-case-14-22.png)

![](./images/step-case-14-23.png)

![](./images/step-case-14-24.png)

![](./images/step-case-14-25.png)

![](./images/step-case-14-26.png)

![](./images/step-case-14-27.png)

![](./images/step-case-14-28.png)

## Installation Mthods of Hardwares

Install the sonar:bit with the bricks. 

![](./images/Wonder-Building-Kit-step-sonar-bit-4.png.png)

## Hardware Connection

Connect a [sonar:bit](https://www.elecfreaks.com/sonar-bit-for-micro-bit-ultrasonic-sensor-distance-measuring-3v-5v.html) to P1 port on [Wukong breakout board](https://www.elecfreaks.com/wukong-board-with-lego-holder-for-micro-bit.html). 

![](./images/Wonder-Building-Kit-case-14-06.png)


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

## Coding
---
### Add extensions
Click "Advanced" in the MakeCode to see more choices.
 
![](./images/case-01-03.png)

Search with Wukong in the dialogue box to download it. 

![](./images/case-01-04.png)

 Search with https://github.com/elecfreaks/pxt-sonarbit in the dialogue box to add the sonar:bit extension. 

![](./images/case-04-04.png)



### Program
 
![](./images/case-13-05.png)

Link:[https://makecode.microbit.org/_1YvYtE8RM8oL](https://makecode.microbit.org/_1YvYtE8RM8oL)

### Result

By detecting the value of the distance between the ultrasonic sensor and the baffle only, the buzzer is controlled to emit different tones.