Soil Moisture Sensor Soil Hygrometer Detection ModuleSoil Moisture Sensor Soil Hygrometer Detection Module

Features:

o Brand new and high quality.

o This is a simple water sensor, can be used to detect soil moisture.

o Module Output is high level when the soil moisture deficit,or output is low.

o Can be used in module plant waterer device, and the plants in your garden no need people to

manage.

o Operating voltage: 3.3V~5V.

o Dual output mode,analog output more accurate.

o A fixed bolt hole for easy installation.

o With power indicator (red) and digital switching output indicator (green).

o Having LM393 comparator chip, stable.

o Panel PCB Dimension: 3cm x 1.5cm.

o Soil Probe Dimension: 6cm x 3cm.

o Cable Length: 21cm.

Interface Description(4-wire):

o VCC: 3.3V-5V.

o GND: GND.

o DO: digital output interface(0 and 1).

o AO: analog output interface.

Instructions for Use:

o Soil moisture module is most sensitive to the ambient humidity is generally used to detect the

moisture content of the soil.

o 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.

o The digital output D0 can be connected directly with the microcontroller to detect high and low by

the microcontroller to detect soil moisture.

o The digital outputs DO shop relay module can directly drive the buzzer module, which can form a

soil moisture alarm equipment.

o Analog output AO and AD module connected through the AD converter, you can get more precise

values of soil moisture.

Arduino Code:

// Soil Moisture Sensor Hygrometer example code// Code author:  aafent. This code is copy free, if you want please mention the author's name and/or the site//Interface Description (4-wire)//VCC: 3.3v-5v//GND: GND//DO: Digital output interface (0 and 1) threshold taken from potentiometer//AO: Analog output interface

const int moistureAO = 1;const int moistureDO = 31;

int AO = 0;int DO = 0;int tmp = 0;

void setup (){  Serial.begin(9600);  Serial.println("Soil moisture sensor");  pinMode(moistureAO, INPUT);  pinMode(moistureDO, INPUT);}

void loop (){  tmp=analogRead( moistureAO );  if ( tmp != AO )   {    AO=tmp;    Serial.print("A=");    Serial.println(AO);  }    tmp=digitalRead( moistureDO );  if ( tmp != DO )   {    DO=tmp;    Serial.print("D=");    Serial.println(DO);  }      delay (1000);

}

int sensorPin = A0; // select the input pin for the potentiometer

int sensorValue = 0; // variable to store the value coming from the sensor

void setup() {

// declare the ledPin as an OUTPUT:

Serial.begin(9600);

}

void loop() {

// read the value from the sensor:

sensorValue = analogRead(sensorPin);

delay(1000);

Serial.print("sensor = " );

Serial.println(sensorValue);

}

Multi sensors:

int sensorPinA = A0; // select the input pin for the potentiometer

int sensorValueA = 0; // variable to store the value coming from the sensor

int sensorPinB = A1;

int sensorValueB = 0;

int sensores = 0;

void setup() {

// declare the ledPin as an OUTPUT:

Serial.begin(9600);

}

void loop() {

// read the value from the sensor:

sensorValueA = analogRead(sensorPinA);

delay(1000);

Serial.print("sensor A = " );

Serial.println(sensorValueA);

sensorValueB = analogRead(sensorPinB);

delay(1000);

Serial.print("sensor B = " );

Serial.println(sensorValueB);

sensores= (sensorValueB + sensorValueA)/2;

Serial.print("sensores = " );

Serial.println(sensores);

}