Grove - Moisture Sensor

Grove - Moisture Sensor

SKU 101020008
$4.90
39 Available
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$3.92/50pcs+
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Description

TheGrove - Moisture Sensor can be used to detect the moisture of soil, to judge if there is dampness around the sensor. It can be used to decide if the plants in a garden need watering. It can be used in gardens to automate watering plants. It can be used very easily by just inserting the sensor into the soil and reading the output using ADC.


NOTE: This sensor is not hardened against contamination or exposure of the control circuitry to water and may be prone to electrolytic corrosion across the probes , please use it for PROTOTYPING ONLY.


Features

  • Grove compatible interface

  • Easy to use


Specification

  • Operating voltage: 3.3~5V

  • Operating current: 35mA

  • ŸSensor Output Value in dry soil: 0~ 300

  • ŸSensor Output Value in humid soil: 300~700

  • Sensor Output Value in water: 700 ~ 950

  • ŸPCB size: 2.0cm X 6.0cm


Documents

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. For technical support, please post your questions to our forum

For all Grove users (especially beginners), we provide you guidance PDF documents. Please download and read through Preface - Getting StartedandIntroduction to Grove before your using of the product.

Technical Details

Dimensions60mm x 20mm x 6.35mm
WeightG.W 8g    
BatteryExclude
Operating voltage3.3~5V
Operating current35mA
Sensor Output Value in dry soil0~ 300
Sensor Output Value in humid soil300~700
Sensor Output Value in water700 ~ 950
PCB size2.0cm X 6.0cm
Operating voltage3.3~5V
Operating current35mA
Sensor Output Value in dry soil0~ 300
Sensor Output Value in humid soil300~700

Part List

Grove - Moisture Sensor1
Grove Cable1

Questions and Answers

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0
helloPlease I want to know if the output of this sensorgives directly the value of relative humidity or a voltage that I have to convert it?
on Mar 23,2017
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Hello, just a value between 0~1023, which means nothing, but the larger the wetter. 

Thanks.

on Apr 14,2017 15:01 PM
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0

What is the lifetime of the two electordes ?

Thank you and keep up the good work !

on Oct 19,2016
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Few months
on May 06,2017 03:46 AM
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0

What about durability? can it support six month under ground?

on Oct 19,2016
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Probably yes, but there are too many variables to consider. I would say 4 to 8 months as maximum and maybe you can prolong it life using it not often (1 reading every 10 or 30 minutes or even longer).The problem is the design. Also consider that you use this sensor to monitor edible plants there is the risk of contamination, the copper of the electrodes will end up in the soil and thus the plant.Would be nice if Groove would do a capacitive moisture sensor instead.
on May 06,2017 03:49 AM
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0

When I use this sensor in water, is it possible to detect how much of the sensor electrodes is under water, i.e. use this sensor as a water level indicator?

on Oct 19,2016
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You'll have to select the 5cmx10cm option. Always select the option where both dimensions are greater than your actual dimensions.

The ordner number can be anywhere on your silkscreen, I always put it where I have room for it and create a little

on Oct 20,2016 10:40 AM
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0

What's the max output voltage

on Oct 19,2016
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Hi.The maximum voltage you can provide is 5v.

on Oct 20,2016 10:45 AM
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0

the connections say SIG, blank, Vcc and GND. I know Vcc and GND. but what are the SIG and blank connections..which one is the analog output.

on Oct 19,2016
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Hi.SIG means signal.So it is the analog input pin.

on Oct 20,2016 10:45 AM
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0

What is the working principle? resistance, capacitance or something else

on Oct 19,2016
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Hi,it is a resistive transducer.

on Oct 20,2016 10:45 AM
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0

How can I get the transfer function of this sensor?

on Oct 19,2016
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Dear Ahmed,if you want to know how to use the transfer function,you can refer to the library file of Arduino.Such as:int analogRead(uint8_t pin)
{
uint8_t low, high;

#if defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
if (pin

on Oct 20,2016 10:43 AM
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0

Can I use a PIC or microcontroller with A / D converter instead of the Grove - Base Shield to measure humidity?

on Oct 19,2016
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Of course you can!But maybe it looks like more complicated.

on Oct 20,2016 10:42 AM
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    Grove - Moisture Sensor

    SKU 101020008
    $4.90
    39 Available
    ADD TO CART
    $4.90/1pcs+
    $4.41/10pcs+
    $4.17/20pcs+
    $3.92/50pcs+
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