Soil Hygrometer Humidity Detection Module Moisture Water Sensor for Arduino/8051/ARM

Features:

• Operating voltage: 3.3V~5V 
• Dual output mode,analog output more accurate
• A fixed bolt hole for easy installation 
• With power indicator (red) and digital switching output indicator (green)
• Having LM393 comparator chip, stable
• Panel PCB Dimension: Approx.3cm x 1.5cm
• Soil Probe Dimension: Approx. 6cm x 3cm
• Cable Length: Approx.21cm

Interface Description(4-wire):

1. VCC: 3.3V-5V 
2. GND: GND
3. DO: digital output interface(0 and 1)
4. AO: analog output interface

Instructions for Use:

• Soil moisture module is most sensitive to the ambient humidity is generally used to detect the moisture content of the soil.
• Module to reach the threshold value is set in the soil moisture, DO port output high, when the the soil humidity exceeds a set threshold value, the module D0 output low.
• The digital output D0 can be connected directly with the microcontroller to detect high and low by the microcontroller to detect soil moisture.
• The digital outputs DO shop relay module can directly drive the buzzer module, which can form a soil moisture alarm equipment.
• Analog output AO and AD module connected through the AD converter, you can get more precise values of soil moisture

Package Contents:

1 x Soil Moisture Detector Module 
1 x Probe 
1 x set of Jumper Cables( 2 in 1) 

* Images shown is a representation only.