Published February 26, 2024

I am not Home. How Do I water my lovely Plants?

Introducing Smart watering system: Never over or under-water plants again! My project uses sensors to water plants based on soil moisture.

IntermediateFull instructions provided505

I am not Home. How Do I water my lovely Plants?

Things used in this project

Hardware components

Arduino UNO

DFRobot Gravity: Digital 5A Relay Module

water pump

You can check it at any electronics hardware store or on Amazon.

SparkFun Soil Moisture Sensor (with Screw Terminals)

connecting wires

Software apps and online services

Arduino IDE

Story

Check out my Github Link below:

Kushagrafeb29/Automatic_Irrigation_Project: Hey! This is my Automatic Irrigation Project. This project can be useful for Farming. It can be used to water the crops without the presence of the Farmer. (github.com)

ProjectDescription:My project is about watering the plants without any human intervention. It helps in never over-watering or under-watering plants.

I made this project as a College Sensor Project.

Working:It works by detecting the moisture level of the soil through a moisture sensor and then based on the data it receives if the moisture is low it will start activating the pump which will water the plants. Now, once the plant is being watered if the moisture level exceeds a certain threshold value it stops the pump. This cycle continues and both water and time is saved.

Arduino Code

//int water; //random variable 
void setup() {
  pinMode(3,OUTPUT); //output pin for relay board, this will sent signal to the relay
  pinMode(6,INPUT); //input pin coming from soil sensor
}

void loop() { 
  int water =0;
  water = digitalRead(6);  // reading the coming signal from the soil sensor
  if(water == HIGH) // if water level is full then cut the relay 
  {
  digitalWrite(3,LOW); // low is to cut the relay
  }
  else
  {
  digitalWrite(3,HIGH); //high to continue proving signal and water supply
  }
  delay(400); 
}