This is a summary of the moisture sensor that can be used to detect the moisture of the soil, when the soil is dry, the module outputs a high level, whereas the output is low. Using this sensor makes 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, analogue output more accurate.
With a 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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