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
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