Soil Temperature and Humidity Module
Soil Temperature and Humidity Module
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Introduction
This is a simple moisture sensor that can be used to detect soil moisture, when the soil lacks water the module outputs a high level, and vice versa outputs a low level. Use this sensor to create an automatic watering device for your garden plants without human management.
Features
Adopting high quality soil sensor to do soil moisture detection, the surface is nickel-plated treatment with wider sensing surface. The surface is nickel-plated with a wider sensing surface area, which can improve the conductivity and prevent the soil from rusting easily in contact with the soil, and prolong the service life.
The product can be a wide range of control of soil humidity, through the potentiometer adjustment control of the corresponding valve inverted value, humidity is lower than the set value, DO output high level, higher than the set value, DO output low level.
Specifications
Comparator using LM393 chip, stable operation
Working voltage 3.3V-5V working current: 100mA or less
There are fixed bolt holes for easy installation.
PCB size: 3.2cm*1.4m
Power indicator (red) and digital switching output indicator (green)
Comparator using LM393 chip, stable operation
Pinout
VCC:3.3V-5V
DO:0/1
AO:Analog Output Interface
GND:Ground
Dimensions
dimension:32x14(mm)
How to Use
Sensors for soil moisture detection
The blue potentiometer in the module is used to adjust the threshold value of the soil humidity. Clockwise, the greater the humidity control, counterclockwise, the smaller.
The digital output D0 can be directly connected to the microcontroller to detect the high and low levels by the microcontroller. This is to detect the soil humidity
The analog output AO can be connected to the AD module, and through AD conversion, it can obtain a more accurate value of soil humidity. The analog output AO can be connected to the AD module, through the AD conversion, you can get a more accurate value of soil humidity
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