# OCTOPUS Gesture Sensor PAJ7620U2(EF04078)

## Introduction

OCTOPUS Gesture Sensor is PAJ7620U2 that integrates gesture recognition function with general I2C interface into a single chip. It can recognize 9 gestures including move up, move down, move left, move right, etc with a simple swipe of your hand.

 ![](./images/AVBdYeR.jpg)


## Products Link

[ELECFREAKS Octopus Gesture Sensor Brick](https://shop.elecfreaks.com/products/elecfreaks-octopus-gesture-sensor-brick?_pos=1&_sid=91a0bb066&_ss=r)



## Characteristics


The 3-pins ports is easy to plug and play.

## Specifications


Item | Parameter 
:-: | :-: 
SKU|EF04078
Detection Method|Built-in approaching detection device
Gesture|9 gestures including move up/down/left/right/forward/back/clockwise/anticlockwise/pulse counter
Detection Scope|5-10cm
Ability for Anti-background light|100k
Power Supply|5V
Working Temperature|-20℃~70℃
Size|23.48mm×31.28mm

## Outlook and Dimensions


 ![](./images/FW7bmzW.png)

## Quick to Start

### Materials used and connection diagram

Take sensor:bit for example

![](./images/ef04078_08.jpg)

### Add Package

Click "Advanced"in the choice of the MakeCode to find more choices.

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

Click “Extensions” to search with "https://github.com/elecfreaks/pxt-gesture" in the dialogue box and download the package of the Gesture sensor.

![](./images/ef04078_05.png)

### Program as the picture shows

![](./images/ef04078_06.png)

### Reference
Links:[https://makecode.microbit.org/_2tdKR1cuxba3](https://makecode.microbit.org/_2tdKR1cuxba3)

You can also download the links 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:_2tdKR1cuxba3" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin"></iframe></div>  


### Result
 The direction of the arrow displaying on the micro:bit changes with the different gestures of your hands.   

![](./images/ef04078_07.gif)

## Relevant Cases


## Technique Files