Adruino Project - The Holiday Plant-Saver

Travel plans for the holidays?
Worried what will happen to your plants while you’re gone?

This will slove your problems...

Plant-saver Automatic watering soil moisture pump

Design Proposal

People like buy plants, but many people don’t have time to water the plant, especially when they go out for travelling. And people don’t know when the plant is thirstily, when should water it.
This product will solve these problems.

Objective

Provides water based on your plant’s current moisture level
Detects temperature and humidity levels
Conveniently sized holder for desk plants
Reservoir capable of watering even thirsty plants for up to two weeks.
The project is based on Arduino.

Components

Arduino Uno X 1
Soil Moisture Sensor X 1
Temperature Sensor X 1
5 V Relay X 1
Pump X 1
7/16 Inch pipe X 1
10 K Potentiometer X 1
1602 LCD X 1
Jump Wire X 10+
2 L Bottle X 1
Plant X 1
Blue Foam X 1
Paperboard X 1

Block Diagram

The Soil Moisture Senser will check the soil humidity every second. The number from senser is 0 - 1000, corresponding moistly soil and dry soil. If put the senser in water, the number is about 0-100; if put the sener in comlete sand, the number will be about 900-1000. After testing, when the number is 500, it means the plant's soil is too dry to die.

The LCD screen appear the current temperature and soil humidity. When the soil humidity number more than 500, the pump will work water plant for 5 second, If the soil is not moisture enough, it will water again until humidity number less than 500.

Arduino Connection

The Circuit

Post

Video

Code

int pump_relay=13;
#include <LiquidCrystal.h>
LiquidCrystal lcd(12,11,10,5,4,3,2);
void setup()
{
lcd.begin(16,2);
lcd.print(“Initialising….”);

pinMode(pump_relay,OUTPUT);
Serial.begin(9600);
}
void loop()
{
{
//getting the voltage reading from the temperature sensor
int reading = analogRead(A1);
float voltage = reading * 5.0;
voltage /= 1024.0;
float temperatureC = (voltage - 0.5) * 100 ;
Serial.print(temperatureC); Serial.println(“ degrees C”);
float temperatureF = (temperatureC * 9.0 / 5.0) + 32.0;
Serial.print(temperatureF); Serial.println(“ degrees F”);
delay(1000);
}
int shidu= analogRead(A0);
Serial.println(“ Soil Moisture”); Serial.println(shidu);
delay(1);
{
if (shidu >500){

digitalWrite(pump_relay,HIGH);
delay(2000);

}
{
if (shidu<=500){
digitalWrite(pump_relay,LOW);
}
}
}
{
lcd.clear();
lcd.print(“Moisture:”);
lcd.setCursor(10,0);
lcd.print((float)analogRead(A0),1);
lcd.setCursor(0,2);
lcd.print(“Temp:”);
lcd.setCursor(5,2);
lcd.print((float)analogRead(A1)*(5.0/1023.0*100),1);
lcd.setCursor(9,2);
lcd.print(“F”);
lcd.setCursor(11,2);
lcd.print(((float)analogRead(A1)*(5.0/1023.0*100)-32)/1.8,1);
lcd.setCursor(15,2);
lcd.print(“C”);
}
delay(1000);

}