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1 This is a summary of the moisture sensor can be used to detect the moisture of the soil, when the soil is dry , the module outputs a high level , whereas the output low. Using this sensor make an automatic watering system , so that your garden plants need people to manage .

2. adjustable sensitivity ( shown in blue digital potentiometer adjustment )


  • VCC external 3.3V-5V
  • GND GND External
  • DO small board digital output interfaces ( 0 and 1 )
  • AO small board analog output interface


  • A soil moisture and humidity module most sensitive to the environment , usually used to detect soil moisture .
  • Modules in the soil moisture reach the set threshold , DO port output high when soil moisture exceeds a set threshold, the module D0 output low ;
  • Digital outputs D0 small plates can be directly connected with the microcontroller through the microcontroller to detect high and low , thereby detecting soil moisture ;
  • Small plates digital output DO OUR relay module can directly drive the buzzer module , which can be composed of a soil moisture alarm equipment ;
  • Small plates AO analog output modules can be connected and AD through the AD converter , you can get a more accurate value of soil moisture 

Moisture Sensor

SKU: 364115376135191
    •     Operating Voltage 3.3V-5V
    •     Module Dual Output mode , a simple digital output , analog output more accurate.
    •     with fixed bolt hole for easy installation
    •     small PCB board size : 3cm * 1.6cm
    •     power indicator ( red ) and the digital switch output indicator ( green )
    •     using LM393 comparator chip , stable
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