Published May 11, 2020

Make your own soil moisture sensor with arduino!!

The soil moisture sensor that gives you percentage of moisture in soil!!!!!

IntermediateFull instructions provided3 hours12,226

Make your own soil moisture sensor with arduino!!

Things used in this project

Hardware components

Arduino UNO

DFRobot Gravity: Analog Soil Moisture Sensor For Arduino

Jumper wires (generic)

Multi-Turn Precision Potentiometer- 10k ohms (25 Turn)

Toggle Switch, Toggle

9V battery (generic)

Software apps and online services

Arduino IDE

Hand tools and fabrication machines

Soldering iron (generic)

Hot glue gun (generic)

Story

The project tells you about interfacing soil moisture sensor and LCD to give display. I forget everyday to water my plant and my grandmother used to recall me to water. So now I think I should build a project to show moisture so I remember that I have built project lets check out the moisture.

u can see this detailed tutorial for more information !!!

pls subscribe also :) !!!

1) CIRCUIT DIAGRAM.

u can make the circuite diagram from fritzing.org

2) CONNECTING THE PINS TO ARDUINO.

connect the jumper wire to digital pin 2, 3, 4, 5, 6, 7 on the arduino.

3)CONNECTING THE PINS THAT COMES FROM THE ARDUINO TO 16*2 LCD DISPLAY.

4) NOW CONNECT THE SOIL MOISTURE SENSOR PINS TO ARDUINO AND LCD DISPLAY.

see the circuit diagram for the connections..

5} NOW ADD 9V OR 5V BATTERY TO ARDUINO FOR POWER.

u can

add a switch to the battery for on and off feature..

6) NOW UPLOAD CODE TO THE ARDUINO.

7) IF THERE IS NO MOISTURE IN THE SOIL THE PERCENTAGE WILL BE.

8) IF THERE IS MOISTURE (BY ADDING WATER) IN THE SOIL THE PERCENTAGE WILL BE.

9)THE FINISH MODEL.

Code

CODE!!!

#include <LiquidCrystal.h>
const int rs = 7, en = 6, d4 = 5, d5 = 4, d6 = 3, d7 = 2;
LiquidCrystal lcd(rs, en, d4, d5, d6, d7);
int j=0;
int prev=0;
int pres=0;
void setup() 
{
  lcd.begin(16, 2);
  lcd.setCursor(0,0);
  lcd.print(" Soil Moisture  ");
  Serial.begin(9600);
}

void loop() 
{
  j=analogRead(A0);
  j=map(j,0,982,148,0);
  pres=j;
  if(j>100)
  j=100;
  else if(j<0)
  j=0;
  lcd.setCursor(6,1);
  lcd.print(j);
  lcd.print("%  ");
  Serial.println(j);

  prev=j;
  delay(500);
  
}