เซ็นเซอร์วัดความชื้นในดิน Soil Moisture Sensor Module โมดูลเซนเซอร์ตรวจจับความชื้นสําหรับ Arduino

Soil Moisture Hygrometer Detection Humidity Sensor Module For arduino Development Board DIY Robot Smart CarDisclaimer: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 )4 Operating Voltage 3.3V-5V5 Module Dual Output mode , a simple digital output , analog output more accurate.6 with fixed bolt hole for easy installation7 small PCB board size : 3cm 1.6cm8 power indicator ( red ) and the digital switch output indicator ( green )9 using LM393 comparator chip , stableVCC external 3.3V-5VGND GND ExternalDO small board digital output interfaces ( 0 and 1 )