int pumpRelay = 6;
int sensorPin = A0;
int sensorValue = 0; // variable to store the value coming from the sensor
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27,16,2);  // set the LCD address to 0x27 for a 16 chars and 2 line display

byte degree[8] =
{
  0b00011,
  0b00011,
  0b00000,
  0b00000,
  0b00000,
  0b00000,
  0b00000,
  0b00000
};
void setup()
{
  pinMode(pumpRelay, OUTPUT);
  digitalWrite(pumpRelay, 0);
  lcd.init();
  lcd.init();
  // Print a message to the LCD.
  lcd.backlight();
  lcd.createChar(1, degree);
  lcd.setCursor(2, 0);
  lcd.print("Arduino Point");
  lcd.setCursor(2, 1);
  lcd.print("Soil Moisture");
  delay(2000);
  lcd.clear();
  // Begin serial communication at a baud rate of 9600:
  Serial.begin(9600);
}
void loop()
{
  // Get a reading from the Moisture sensor:
  sensorValue = analogRead(sensorPin);

  // ------Display Moisture Sensor Value in Serial Monitor------ /
  Serial.print("Moisture Sensor Value:");
  Serial.println(sensorValue);

  //Display the Moisture Percentage
  float moisturePercentage;
  moisturePercentage = (sensorValue / 1023) * 100;
  Serial.print("Moisture Percentage = ");
  Serial.print(moisturePercentage);
  Serial.print("%\n");

  //Display the plant need
  if (sensorValue < 300) {
    Serial.println("I am thirsty, please give me water");
    Serial.println("Pump is ON");
    digitalWrite(pumpRelay, 1);
  }
  else if (sensorValue > 300 && sensorValue < 700) {
    Serial.println("I feel so comfortable");
  }
  if (sensorValue > 700) {
    Serial.println("Too much water, I might get hurt");
    Serial.println("Pump is OFF");
    digitalWrite(pumpRelay, 0);
  }

  Serial.print("\n");

  // ------Display Moisture Sensor Value in LCD------ /
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Soil Moisture");

  lcd.setCursor(0, 1);
  lcd.print(sensorValue);
  lcd.setCursor(6, 1);
  lcd.print("&");
  lcd.setCursor(8, 1);
  lcd.print(moisturePercentage);
  lcd.print(" %");
  delay(500);
}