Octopus Soil Moisture Sensor Brick

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US$4.19
EF04027
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Octopus Soil Moisture Sensor Brick

Octopus Soil Moisture Sensor Brick can read the amount of moisture present in the soil surrounding it. It's a low tech sensor, but ideal for monitoring an urban garden, or your pet plant's water level. This is a must have tool for a connected garden! 

This sensor uses the two probes to pass current through the soil, and then it reads that resistance to get the moisture level. More water makes the soil conduct electricity more easily (less resistance), while dry soil conducts electricity poorly (more resistance).

It will be helpful to remind you to water your indoor plants or to monitor the soil moisture in your garden. The Freaduino Sensor Shield is the perfect shield to connect this senor to Arduino. Or Freaduino UNO which we had pre-stray Octopus Brick interface.

Specification

  • Power supply: 3.3v or 5v
  • Output voltage signal: 0~4.2v
  • Current: 35mA
  • Pin definition:
  • Analog output(Yellow wire)
  • GND(Black wire)
  • Power(Red wire)

Shipping List

  • Moisture sensor(1 unit)
  • Analog Sensor Cable (1 unit)

Quick Start

Hardware Connection

Connection note:Connect this module to the P1 port on OCTOPUS:BIT. 

Programming

Click the "Advanced" selection in the Makecode to check more coding selections.

We need to add a package for the coding. Click "Add package" from the bottom of the page and search"Tinker-kit" in the dialog box, then download the equivalent package.(Pointed by the red arrows below)

Code

Program links:https://makecode.microbit.org/_e7bCPFCFJEt4

Results

Insert this module into the soil, the value of the soil moisture content can be seen on the micro:bit.

 

Resources:

Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials. 

Notice for California Residents: Warning symbolWARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov