Published November 16, 2018 © CC BY

Automatic Plant Watering System Using Arduino

This project will show you how to make your own automatic plant watering system.

IntermediateFull instructions provided4 hours3,646

Automatic Plant Watering System Using Arduino

Things used in this project

Hardware components

STEMpedia evive AgriTech Kit

Software apps and online services

Arduino IDE

Story

Going out on vacation poses a daunting question in your face: who in the world is going to water the plants at home while you’re out?! If your neighbors are the kind type, then you might not have to worry much; if not, well, you need to arrange something then. This ‘something’ is what this project is going to be about! The something that you’re going to make in this project is the DIY Automatic Plant Watering System. Yes, you heard it right. With the help of the DIY Automatic Plant Watering System, you don’t need to worry about your plants going dry while you’re out holidaying; it will make sure that the lush and green all by its own! And it ain’t that difficult to make! Sounds kind of a ‘shut up and take my money’ project, right?

Then jump right in before your plants go dry!

Step 1: Things You'll Need

evive
Soil Moisture Sensor
Drip Irrigation Kit
12C 2A DC Adapter
12V 3W Water Pump
Glue Gun and Glue Sticks
Male to Female Jumper Cable

You can buy an Agritech Kit for this as well, which includes all the essential components. You can make a number of projects with this kit. The Kit that can make your garden automatic.

Step 2: The Secret Component

We already have made the drip irrigation system, where the plant watering system is manual.

The making of the whole system is the same. You can make one by clickinghere.

The difference arises here:

The secret device that we use for making the water pump system automatic is the Soil Moisture Sensor. The Soil Moisture Sensor is used to detect the water level content of the soil. It has two electrodes that are inserted in the soil whose moisture is to be checked. You must be wondering how the electrodes are used to check the moisture content. Basically, they check the conductivity of the soil. The more conductive the soil, the more moisture the soil contains. Less conductive soil points out to less moisture sign.

Insert this Soil Moisture Sensor in the soil.

Step 3: What’s Next:

Once you have inserted Soil Moisture Sensor, you must be wondering what’s next.

The connection of the sensor is made to the evive. The water pump is also connected to evive as shown in the given schematics:

As we know, the Sensor will check the moisture content in the soil. Thus, we have set a Threshold in the code, which indicated that if the moisture level is low, the water pump will start supplying the water. If not, then the pump will remain OFF.

You can download both Arduino Code as well as evive library from the code section below.

To know more about Arduino, visit: https://thestempedia.com/tutorials/arduino-ide/

Thus, we have successfully created our automatic water pump system, which will need no human help to water the plants

For more detailed Instruction visit: https://thestempedia.com/project/diy-automat...

Step 4: Conclusion

With this, your DIY Automatic Plant Watering System is all set to take care of your plants while you’re out having the time of your life. Happy holidaying!

To explore more projects, visit: http://thestempedia.com/projects

Code

#include<evive.h>

#define sensor_pin A0
#define pump_enable 44
#define pump_gnd 28
#define pump_control 29

unsigned int sensor_out=0;

void setup() {
  // put your setup code here, to run once:

  Serial.begin(9600);

  pinMode(sensor_pin,INPUT);
  pinMode(pump_enable,OUTPUT);
  pinMode(pump_gnd,OUTPUT);
  pinMode(pump_control,OUTPUT);

  analogWrite(pump_enable,255);
  digitalWrite(pump_gnd,LOW);
  digitalWrite(pump_control,LOW);

  tft_init(INITR_GREENTAB);
  tft.setRotation(1);
  tft.fillScreen(ST7735_BLACK);

   tft.setCursor(25,10);
  tft.setTextSize(2);
  tft.setTextColor(ST7735_WHITE,ST7735_BLACK);
  tft.print("STEMpedia");

   tft.setCursor(15,30);
  tft.setTextSize(1.8);
  tft.setTextColor(ST7735_GREEN,ST7735_BLACK);
  tft.print("SMART DRIP IRRIGATION ");
  tft.setCursor(55,40);
  tft.print("SYSTEM");

  tft.setCursor(55,60);
  tft.setTextSize(1.8);
  tft.setTextColor(ST7735_GREEN,ST7735_BLACK);
  tft.print("STATUS");

  tft.setCursor(20,70);
  tft.setTextColor(ST7735_WHITE,ST7735_BLACK);
  tft.print("PUMP     :");
  tft.setTextColor(ST7735_BLUE,ST7735_BLACK);
  tft.print(" OFF  ");
  tft.setTextColor(ST7735_WHITE,ST7735_BLACK);
  tft.setCursor(20,80);
  tft.print("HUMIDITY : ");
  tft.setTextColor(ST7735_GREEN,ST7735_BLACK);
  tft.print(sensor_out);
  tft.print(" %   ");

  tft.setTextColor(ST7735_GREEN,ST7735_BLACK);
  tft.setCursor(0,105);
  tft.setTextSize(1.8);
  tft.print("FOR MORE INFORMATION VISIT");
  tft.setCursor(30,115);
  tft.setTextColor(ST7735_WHITE,ST7735_BLACK);
  tft.print("thestempedia.com");
}

void loop() {
  // put your main code here, to run repeatedly:

  sensor_out = analogRead(sensor_pin);
  sensor_out = map(sensor_out,1023,550,10,100);

  tft.setCursor(20,80);
   tft.setTextColor(ST7735_WHITE,ST7735_BLACK);
  tft.print("HUMIDITY : ");
  tft.setTextColor(ST7735_GREEN,ST7735_BLACK);
  tft.print(sensor_out);
  tft.print(" %   ");
 

  if(sensor_out>=60)
    {
       tft.setCursor(20,70);
       tft.setTextColor(ST7735_WHITE,ST7735_BLACK);
       tft.print("PUMP     :");
       tft.setTextColor(ST7735_BLUE,ST7735_BLACK);
       tft.print(" OFF  ");
       digitalWrite(pump_control,LOW);
       delay(50);
    }
  else if(sensor_out<60)
     {
       tft.setCursor(20,70);
       tft.setTextColor(ST7735_WHITE,ST7735_BLACK);
       tft.print("PUMP     :");
       tft.setTextColor(ST7735_GREEN,ST7735_BLACK);
       tft.print(" ON  ");
       digitalWrite(pump_control,HIGH);
       delay(50);
       
     }

  delay(30);

  
}

Credits

STEMpedia

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Automatic Plant Watering System Using Arduino

Things used in this project

Hardware components

Software apps and online services

Story

Step 1: Things You'll Need

Step 2: The Secret Component

Step 3: What’s Next:

Step 4: Conclusion

Schematics

Fritzing Diagram

Code

Arduino Code for Automatic Plant Watering System

eviv

Credits

STEMpedia

Comments

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Automatic Plant Watering System Using Arduino

Automatic Plant Watering System Using Arduino

Things used in this project

Hardware components

Software apps and online services

Story

Step 1: Things You'll Need

Step 2: The Secret Component

Step 3: What’s Next:

Step 4: Conclusion

Schematics

Fritzing Diagram

Code

Arduino Code for Automatic Plant Watering System

eviv

Credits

STEMpedia

Comments

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