Arduino And Soil Moisture Sensor

Introduction

In my previous article I explained about working with a fire sensor and in this article I'll show you working with a soil moisture sensor to get the accurate moisture value in the soil.

Things you will need

• Arduino Uno
• Bread Board 
• Soil Moisture Sensor 
• Led 

Connection

• Pin1 to the Analog
• Pin2 to the Gnd
• Pin3 to the 5v

 

 

Programming

int pin=A0;
int soilmoisture=0;
int led=13;
void setup()
{
  pinMode(led,OUTPUT);
  Serial.begin(9600);
}
void loop()
{
  int soilmoisture=analogRead(pin);

  if(soilmoisture>=100){
  digitalWrite(led,HIGH);
}
else{
  digitalWrite(led,LOW);
}
  Serial.println(soilmoisture);
  Serial.print("%");
  delay(20);
}

Explanation

 

Declare the variable pin to the Analog and set the minimum value to the soil moisture sensor as 0 and connect the led to the digital pin 13

 

Functions

 

Void setup()

• Set the pinMode to led as OUTPUT
• Set the baud Rate( 9600) 

Void loop()

 

AnalogRead- Reads the analog value from the specific pin i.e soil moisture pin with the delay time

 

Condition

if (soilmoisture >= 100)
{
    //led will on
}
else
{
    //led is off
}

And then print the soil moisture sensor value in the serial monitor. 

Advantages

• It reduces the human effort.
• Based upon the irrigation the water will flow through the plant.
• We can save our water.

Read more articles on Arduino:

• Remote Control Using Arduino
• Introduction to Arduino
• Police Strobe Light Using Arduino