Tolako 5V Soil Hygrometer Humidity Detection Module Moisture Water Sensor Soil moisture for Arduino

• This is a simple water sensor, that can be used to detect soil moisture, Module Output is high level when the soil moisture deficit or output is low,
• Can be used in a module plant waterer device, and the plants in your garden do no need people to manage.
• 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
• Operating voltage: 3.3V~5V

Panel PCB Dimension: Approx.3cm x 1.5cm
Soil Probe Dimension: Approx. 6cm x 3cm
Cable Length: Approx.21cm
Interface Description(4-wire):
VCC: 3.3V-5V
GND: GND
DO: digital output interface(0 and 1)
AO: analog output interface

Instructions for Use:
The 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 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