2pcs Soil Hygrometer Humidity Detection Module Soil Moisture Water Sensor

x2pcs Smart Electronics Soil Moisture Hygrometer Detection Humidity Sensor Module 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. Features: -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 Instructions: 1. A soil moisture and humidity module most sensitive to the environment , usually used to detect soil moisture . 2. Modules in the soil moisture reach the set threshold , DO port output high when soil moisture exceeds a set threshold, the module D0 output low ; 3. Digital outputs D0 small plates can be directly connected with the microcontroller through the microcontroller to detect high and low , thereby detecting soil moisture; 4. Small plates digital output DO OUR relay module can directly drive the buzzer module , which can be composed of a soil moisture alarm equipment ; 5. Small plates AO analog output modules can be connected and AD through the AD converter , you can get a more accurate value of soil moisture; PACKET CONTAINS: 2pcs x Soli Moisture Sensor