:Product description
high-quality soil sensors to detect soil moisture
you can control a wide range of soil moisture, the corresponding threshold adjustment control by potentiometer
humidity is below the set value, DO output high
higher than the set value, DO output low
using LM393 comparator chip, stable
Operating Voltage 3.3V-5V
with fixed bolt hole for easy installation
PCB Size: 3.2cm * 1.4m
(Wiring (4-wire
VCC external 3.3V-5V
GND GND External
(DO small board digital output interfaces (0 and 1
AO analog output voltage of small plates
:Note for use
sensor for detecting moisture in the soil
module is the blue potentiometer to adjust the threshold for soil moisture, clockwise adjustment, control humidity, the smaller counterclockwise
digital outputs D0 can be directly connected to the microcontroller through the microcontroller to detect high and low, thereby detecting soil moisture
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