# Octopus Analog Capacitive Soil Moisture Sensor(EF04097)

## Introduction

Octopus Analog Capacitive Soil Moisture Sensor is the soil moisture electric brick in our Octopus series, the basic design is from the Octopus electric bricks and the setting of its outlook, the PCB fixing hole and the connectors are the same. 

Adopted the capacitive sensing principle to detect the soil moisture, it perfectly avoids the problem of easy to be corroded of the resistive transducer and greatly extends its service time.

![](https://raw.githubusercontent.com/elecfreaks/learn-cn/master/microbitSensor/sensor/images/04097_00.jpg)

## Products Link

[ELECFREAKS Octopus Moisture Sensor (Analog Capacitive Soil)](https://shop.elecfreaks.com/products/elecfreaks-octopus-moisture-sensor-analog-capacitive-soil?_pos=1&_sid=cec7f3f9d&_ss=r)

## Characteristics

 Hard to corrode.
 Support micro:bit in 3V.。
 Easy and convenient for connection.

## Parameter 

 Name: Octopus Analog Capacitive Soil Moisture Sensor
 SKU：EF04097
 Working Voltage: DC 3~5.5V
 Connection Mode: G-GND，V-VCC，S-signal pin
 Size: 19 x 76mm
 Net Weight: 5.5g

### Dimensions and Outlook

![](https://raw.githubusercontent.com/elecfreaks/learn-cn/master/microbitSensor/sensor/images/04097_01.png)

## Quick to Start  

### Hardware Connection

Connect the module with the wire(with buckle) to the PI pins on the Octopus:bit, insert the micro:bit to the Octopus:bit.

![](https://raw.githubusercontent.com/elecfreaks/learn-cn/master/microbitSensor/sensor/images/04097_02.png)

### Software Programming

Programme in the makecode and analog read P1 to get the value of soil moisture that would be showing on the micro:bit. 
Links:  [https://makecode.microbit.org/_4urWJCMeuh4L](https://makecode.microbit.org/_4urWJCMeuh4L)

You can also download it directly:
<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:_4urWJCMeuh4L" frameborder="0" sandbox="allow-popups allow-forms allow-scripts allow-same-origin">
 </iframe>
</div>  

### Result

The value of the soil moisture is showing on the micro:bit. 

## FAQ