# ASR(Automatic Speech Recognition) Module(EF05037)

## Introduction

It is able to control the device via your voice such as to give commands of  moving forward, reversing and starting the line-tracking mode etc.

![](./images/05037_01.png)

## Products Link

[ELECFREAKS PlanetX PIR Sensor](https://www.elecfreaks.com/planetx-pir.html)


## Characteristics

 Designed with RJ11 ports and easy to plug.

## Specification


Item | Parameter 
:-: | :-: 
SKU|EF05037
Connection|RJ11
Connection Type|IIC
Working Voltage|3.3V
Core IC|SNR3512M


## Outlook and Dimension



![](./images/05037_02.png)


## Quick to Start


### Materials required and connections diagram 

 Connect the ASR module to the IIC port and the motor fan to J1 port on Nezha expansion board. 


![](./images/05037_03.png)



## MakeCode Programming


### Step 1
Click "Advanced" in the drawer of the MakeCode to see more choices.

![](./images/05001_04.png)

We need to add a package for programming. Click "Extensions" in the bottom of the drawer and search with "PlanetX" in the dialogue box to download it. 

![](./images/05001_05.png)

***Note:*** If you met a tip indicating that the codebase will be deleted due to incompatibility, you may continue as the tips say or build a new project in the menu. 

### Available Commands of ASR Module

![](./images/05037_05.png)

### Step 2
### Code as below

![](./images/05037_06.png)


### Link
Link: [https://makecode.microbit.org/_9j8UEEYi82tF](https://makecode.microbit.org/_9j8UEEYi82tF)

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:_9j8UEEYi82tF" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin"></iframe></div>  


### Result
 The motor fan is controlled by the ASR module.


## Relevant File


## Technique File