Moisture Sensor Module

Moisture Sensor Module

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  • Product Code: SN-MOISTURE-MOD
  • Warranty Period: 12 months
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Planning for auto gardening project? You might need this moisture sensor to detect moisture of your soil further control the pipe valve to water your plants :)

This sensor comes in 2 parts, sensor probes and module board. The sensor is basically two probes to be inserted into soil. 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).

The module come with a comparator and adjustable potentiometer for user to adjust the threshold to toggle digital output. You can choose to use the digital or analog output.

Features:
  • Easy to Use
  • power supply: 3.3V to 5VDC
  • Current: ~ 35mA
Tutorials:

 

 

 

what is the range of moisture level? ( Ningen, 22/01/2020 )
Hi, sorry we don't have that details but this module is suitable for small project 
What is the range of soil area that one soil moisture sensor can cover? ( Eton, 01/05/2018 )
Hi, sorry we don't have those information for this sensor. Thanks.
how about the range of temprature? i need 0c to 200c ( Joey, 03/09/2016 )

Hi, this sensor is to measure moisture, not temperature.

what are the eqn for converting the analog value into the water level that the plant need at that time? ( azeem, 03/05/2016 )

Hi. We are not sure about equation that you means. Basically,this sensor uses the two probes to pass current through the soil, and then it reads that resistance to get the moisture level. You will need to adjust the variables anyway, since this will be unique to your setup, soil type, and how wet you actually want your soil to be. Test out the reading and play around with the values until you find some that fit your needs. Thanks. :)

can you attach coding PIC 16f877a for this sensor ( capiqleee, 10/04/2015 )

Sorry, we only have example code for this module using Arduino. But the basic operation of this sensor is analog, with on board comparator, you can set the threshold for digital output. You can either read the analog ouput or digital output from the module via PIC16F877A, there are plenty of example in our tutorial for PIC16F877A, please visit it.

How is the soil moisture calculated? Couldn't find any table for data measurement inside the manual. Thanks. ( Mac, 27/12/2014 )

It does not give absolute reading of moisture, only relative. Please do go through the Getting Started Guide and Video to understand more. Do continue the discussion in our technical forum if you have further inquiry, thanks :) 

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DescriptionDate AddedSizeAction
Fritzing Tutorial20/09/2019N/ADownload
Fritzing File20/09/2019N/ADownload
Example Code20/09/2019N/ADownload
Getting Started Guide20/09/2019N/ADownload
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Tags: moisture, sensor, module, others temperature, humidity, sn-moisture-mod