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Moisture sensor
Moisture sensor
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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.
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Adjustable sensitivity ( shown in blue digital potentiometer adjustment ).
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Operating Voltage 3.3V-5V.
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Module Dual Output mode , a simple digital output , analog output more accurate.
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With fixed bolt hole for easy installation.
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Small PCB board size: 3cm * 1.6cm.
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Power indicator ( red ) and the digital switch output indicator ( green ).
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Using LM393 comparator chip, stable.
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VCC external 3.3V-5V
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GND GND External
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DO small board digital output interfaces ( 0 and 1 )
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AO small board analog output interface
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