Soil Moisture Sensor

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 .

•    adjustable sensitivity ( shown in blue digital potentiometer adjustment )
•    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
•    VCC external 3.3V-5V
•    GND GND External
•    DO small board digital output interfaces ( 0 and 1 )
•    AO small board analog output interface