Automatic Plant Watering System

Small-scale, smart irrigation system utilizing Arduino. Part II of EGR final detailed technical report / thesis.

Dec 6, 2021

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2 respects

home automation

plants

garden

Components and supplies

Grove - 4-Channel SPDT Relay

Arduino UNO

4-CHANNEL RELAY CONTROLLER FOR I2C

Gravity: Analog Capacitive Soil Moisture Sensor- Corrosion Resistant

Tools and machines

Multitool, Screwdriver

Apps and platforms

Arduino IDE

Project description

Code

c_cpp

1const int relayPin = 2;
2const int sensorPin = A0;
3float sensorValue   = 0;
4
5void setup() {
6// put your setup code here, to run once:
7Serial.begin(9600);
8//begins   communication with serial monitor
9pinMode(relayPin, OUTPUT);
10//sets pin 2   to output
11pinMode(sensorPin, INPUT);
12//sets pin A0 to input
13digitalWrite(relayPin,   HIGH);
14//turns on relay, in turn turning on pump
15delay(500);
16//runs pump   for 1/2 second
17}
18
19void loop() {
20// put your main code here, to run repeatedly:
21Serial.print("MOISTURE   LEVEL: ");
22//prints "MOISTURE LEVEL: "
23sensorValue = analogRead(sensorPin);
24//sets   "sensorValue" to input value from A0
25Serial.print(sensorValue);
26//prints   moisture level
27if(sensorValue>500)
28{
29digitalWrite(relayPin, HIGH);
30//if   moisture level is above 750, turns off pump
31}
32else
33{
34digitalWrite(relayPin,   LOW);
35//if moisture level is not above 750, turns on pump
36}
37Serial.println();
38//prints   new line for spacing
39delay(1000);
40//waits 1 second before re-checking moisture   level
41}

const int relayPin = 2;
const int sensorPin = A0;
float sensorValue   = 0;

void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
//begins   communication with serial monitor
pinMode(relayPin, OUTPUT);
//sets pin 2   to output
pinMode(sensorPin, INPUT);
//sets pin A0 to input
digitalWrite(relayPin,   HIGH);
//turns on relay, in turn turning on pump
delay(500);
//runs pump   for 1/2 second
}

void loop() {
// put your main code here, to run repeatedly:
Serial.print("MOISTURE   LEVEL: ");
//prints "MOISTURE LEVEL: "
sensorValue = analogRead(sensorPin);
//sets   "sensorValue" to input value from A0
Serial.print(sensorValue);
//prints   moisture level
if(sensorValue>500)
{
digitalWrite(relayPin, HIGH);
//if   moisture level is above 750, turns off pump
}
else
{
digitalWrite(relayPin,   LOW);
//if moisture level is not above 750, turns on pump
}
Serial.println();
//prints   new line for spacing
delay(1000);
//waits 1 second before re-checking moisture   level
}

Code

c_cpp

1const int relayPin = 2;
2const int sensorPin = A0;
3float sensorValue  = 0;
4
5void setup() {
6// put your setup code here, to run once:
7Serial.begin(9600);
8//begins  communication with serial monitor
9pinMode(relayPin, OUTPUT);
10//sets pin 2  to output
11pinMode(sensorPin, INPUT);
12//sets pin A0 to input
13digitalWrite(relayPin,  HIGH);
14//turns on relay, in turn turning on pump
15delay(500);
16//runs pump  for 1/2 second
17}
18
19void loop() {
20// put your main code here, to run repeatedly:
21Serial.print("MOISTURE  LEVEL: ");
22//prints "MOISTURE LEVEL: "
23sensorValue = analogRead(sensorPin);
24//sets  "sensorValue" to input value from A0
25Serial.print(sensorValue);
26//prints  moisture level
27if(sensorValue>500)
28{
29digitalWrite(relayPin, HIGH);
30//if  moisture level is above 750, turns off pump
31}
32else
33{
34digitalWrite(relayPin,  LOW);
35//if moisture level is not above 750, turns on pump
36}
37Serial.println();
38//prints  new line for spacing
39delay(1000);
40//waits 1 second before re-checking moisture  level
41}

const int relayPin = 2;
const int sensorPin = A0;
float sensorValue  = 0;

void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
//begins  communication with serial monitor
pinMode(relayPin, OUTPUT);
//sets pin 2  to output
pinMode(sensorPin, INPUT);
//sets pin A0 to input
digitalWrite(relayPin,  HIGH);
//turns on relay, in turn turning on pump
delay(500);
//runs pump  for 1/2 second
}

void loop() {
// put your main code here, to run repeatedly:
Serial.print("MOISTURE  LEVEL: ");
//prints "MOISTURE LEVEL: "
sensorValue = analogRead(sensorPin);
//sets  "sensorValue" to input value from A0
Serial.print(sensorValue);
//prints  moisture level
if(sensorValue>500)
{
digitalWrite(relayPin, HIGH);
//if  moisture level is above 750, turns off pump
}
else
{
digitalWrite(relayPin,  LOW);
//if moisture level is not above 750, turns on pump
}
Serial.println();
//prints  new line for spacing
delay(1000);
//waits 1 second before re-checking moisture  level
}

Downloadable files

WayinTop

https://github.com/WayinTop/Automatic-Plant-Watering-System-Tutorial/blob/master/4%20Channel%20Relay%20Plant%20Watering%20System%20and%20code/Plant%20Watering%20System%20Tutorial-English.pdf

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