This is a simple water sensor can be used to detect soil moisture when the soil moisture deficit module outputs a high level, and vice versa output low. Use this sensor to produced an automatic plant watering device, so that the plants in your garden can be managed without people.

• Usage :
• Soil moisture module is most sensitive to the ambient, generally used to detect the moisture content of the soil.
• When the module can not reach the threshold value, DO port output high, when the the soil humidity exceeds a set threshold value, the module D0 output low
• The small board digital output D0 can be connected directly to the MCU to detect high and low, to detect soil moisture
• Small board digital output DO can directly drive the buzzer module or relay module in our store, which can form a soil moisture alarm equipment
• Small board analog output AO and AD module connected through the AD converter, you can get more precise values of soil moisture

• Sensitivity adjustable via the blue digital potentiometer adjustment
• Operating voltage : 3.3~5V
• Module dual output mode, digital output, analog output more accurate
• With fixed bolt hole for easy installation
• PCB size : 3×1.6cm
• Power indicator (red) and digital switching output indicator (green)
• Comparator LM393 chip, very stable
• Connections :
• VCC connect to 3.3V-5V
• GND connect to GND
• DO digital value output connector(0 or 1)
• AO analog value output connector
• Kit Contents :
• Sensor probe
• Detecting board
• Cables

Device	Sensor
Type	Soil | Temperature | Humidity