China Lm393 Soil Moisture Hygrometer Detection Humidity Sensor Module Development Board DIY Robot Smart Car for Arduino, Find details about China Soil Moisture Sensor, Capacitive Soil Moisture Sensor Module from Lm393 Soil Moisture Hygrometer Detection Humidity Sensor Module Development Board DIY Robot Smart Car for Arduino
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-5V
5 Module Dual Output mode , a simple digital output , analog output more accurate.
6 with fixed bolt hole for easy installation
7 small PCB board size : 3cm * 1.6cm
8 power indicator ( red ) and the digital switch output indicator ( green )
9 using LM393 comparator chip , stable